WO2009121942A1 - Eyeglass for three-dimensional viewing of digital video contents, and corresponding protective shell - Google Patents

Eyeglass for three-dimensional viewing of digital video contents, and corresponding protective shell Download PDF

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Publication number
WO2009121942A1
WO2009121942A1 PCT/EP2009/053975 EP2009053975W WO2009121942A1 WO 2009121942 A1 WO2009121942 A1 WO 2009121942A1 EP 2009053975 W EP2009053975 W EP 2009053975W WO 2009121942 A1 WO2009121942 A1 WO 2009121942A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective shell
shell
housing
vision device
alternate
Prior art date
Application number
PCT/EP2009/053975
Other languages
French (fr)
Inventor
Jean-Louis De Bougrenet De La Tocnaye
Original Assignee
Groupe Des Ecoles Des Telecommunications / Ecole Nationale Superieure Des Telecommunications De Bretagne
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Groupe Des Ecoles Des Telecommunications / Ecole Nationale Superieure Des Telecommunications De Bretagne filed Critical Groupe Des Ecoles Des Telecommunications / Ecole Nationale Superieure Des Telecommunications De Bretagne
Publication of WO2009121942A1 publication Critical patent/WO2009121942A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C5/00—Constructions of non-optical parts
    • G02C5/001—Constructions of non-optical parts specially adapted for particular purposes, not otherwise provided for or not fully classifiable according to technical characteristics, e.g. therapeutic glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/10—Electronic devices other than hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/008—Aspects relating to glasses for viewing stereoscopic images

Definitions

  • the field of the invention relates to the field of the design of universal and robust spectacles for the three-dimensional (3D) visualization of digital video contents.
  • a first type of telescope relates to a telescope comprising a display device consisting of a polarizing film placed opposite the user's field of vision and mounted on a plastic mount.
  • This first type of bezel called the passive type of viewing bezel, is used in the context of a process known under the name of "RealD” (registered trademark).
  • This method notably uses a projector comprising an active liquid crystal part known by the name "Zscreen” (trademark) and placed in front of the objective of said projector, thus alternately polarizing the light in opposite circular states.
  • a second type of passive type viewing bezel is also used in a device known as the "Dolby" device (registered trademark).
  • This second type of bezel comprises a display device consisting of a color filter film placed facing the field of view of the user and mounted on a plastic mount.
  • the projector includes an active part based on color filters placed in front of the projector lens.
  • a third type of glasses proposes to conceal successively the vision of the left eye and the right eye through a display device comprising at least one liquid crystal cell placed next to every eye.
  • the shutter of the cell or cells is voltage controlled by a voltage control device.
  • the transparency or opacity of each eye is synchronized to the projection frequency of the images from the projector through an infrared transmitter emitting an infrared signal to a photodiode-type detection device directly integrated on the frame of the viewing window.
  • this detection device Upon detection of an infrared signal, this detection device transmits a signal to said voltage control device in order to shut off the liquid crystal contained in each liquid crystal-based cell.
  • the active liquid crystal cells are conventionally totally integral with the frame.
  • Each cell is embedded firmly in an opening of the frame provided for this purpose, so that the entire peripheral portion of the cell is in contact with the frame.
  • the damage rate of the 3D viewing glasses is relatively high. This is due in particular to the fact that the cells are not sufficiently protected from the deformations induced by torsional movements, bending and / or pressure transmitted by the frame during the manipulation of the glasses. Indeed, the bending of the frame can then cause a twist and possibly the breakage of this type of thin glass type glass substrates.
  • each type of bezel includes a display device specific to its use.
  • a bezel of a first type can not be used with a projector requiring glasses of the third type for example. It is therefore necessary to renew a complete batch of viewing glasses at each change of projection format.
  • one objective is to minimize the risk of deformations of the cells induced by bending, torsion and / or pressure forces applied to the viewing window, when it is manipulated by a user, in order to avoid damage to the cells.
  • Another objective is to provide a type of universal telescope to adapt to all current visualization systems.
  • At least one embodiment of the invention also aims to provide a robust and waterproof viewing bezel.
  • Another objective of at least one embodiment of the invention is to provide a space saving and lightweight viewing bezel.
  • a complementary objective of at least one embodiment of the invention is to provide a low cost manufacturing display. 4. PRESENTATION OF THE INVENTION
  • a three-dimensional viewing window of digital video contents comprising at least one alternating vision device (102).
  • said telescope is remarkable in that it comprises a transparent protective shell at least at the level of said alternate vision device, said shell comprising at least a first housing intended to accommodate said alternate vision device, without contact between said shell and said alternate vision device, so that said alternate vision device is not secured to the protective shell.
  • the invention is based on a completely new and inventive approach to producing a viewing window comprising a rigid frame and an interchangeable hermetic protective shell, which is simple to use and allows for protect the display device against external aggression (scratching, washing operation, ...) and / or mishandling of the user.
  • a shell makes it possible to protect the alternating vision device against any external aggression (shock, scratch) and also against mechanical deformations induced by torsional forces, bending, and / or pressure induced on the shell, during a manipulation of the viewing window by a user.
  • Said alternating vision device is detached from the shell, in the sense that no mechanical stress is applied to the alternate vision device by the shell during any deformation thereof.
  • the absence of mechanical stresses (or disconnection) between the alternate vision device and the protective shell provides an additional degree of freedom to prevent transmission of mechanical deformations of the shell on the alternate vision device.
  • the alternate vision device is therefore not forced to undergo the deformations of the protective shell.
  • the protective shell makes it possible to limit the twisting forces induced by the frame on the at least one display device during the manipulation of the viewing window by the user.
  • the viewing window comprises a free space provided between at least one face of said at least one alternate vision device and an inner wall of the protective shell.
  • the free space provides an air slice, adding a geometric tolerance or clearance between each alternate vision device and the protective shell.
  • the spacing between the alternating vision device and an inner wall of the protective shell is provided so that the inner wall can freely deform without coming into contact with the alternate vision device.
  • the telescope comprises a strip comprising at least a second housing intended to receive the said at least alternate vision device, and means for fixing the at least one alternate vision device. in said at least one second housing.
  • a strip also makes it possible to position each alternate vision device, so that it is not in contact with the protective shell.
  • the telescope comprises securing means included in said protective shell and / or in said strip, for securing the protective shell and the strip in a configuration where at least a portion of said strip closes each opening of each first housing of said protective shell.
  • alternating vision devices are protected from external aggression, especially during washing operations.
  • the protective shell comprises a first portion and a second portion intended to cover said first portion, said first portion comprising said at least one first housing.
  • This particular embodiment of the invention offers the possibility of easily changing the front face of the protective shell, without having to change the entirety of this shell.
  • it is not necessary to replace the entire hull or to manipulate shutters (unlike the first embodiment where the operator would need to remove the strip carrying the shutters).
  • said at least one alternate vision device belongs to the group comprising: active type alternating vision devices; alternate vision devices of the passive type.
  • the viewing window according to the invention is compatible with all the different types of display devices, passive or active.
  • said viewing window is remarkable in that said protective shell comprises at least a third housing intended to accommodate said control device. in tension.
  • said voltage control device is also protected by said protective shell when the latter is secured to the frame.
  • said at least one alternate vision device comprises at least one flexible substrate belonging to the group of flexible plastic films of polyester type.
  • the protective shell is made of resin resistant plastic (thermosetting or thermoplastic).
  • resin resistant plastic thermosetting or thermoplastic
  • the invention also relates to a protective shell comprising at least a first housing intended to accommodate said at least one alternate vision device, said protective shell being transparent at least at the level of said at least one alternate vision device, said at least one alternating vision device not being integral with the protective shell.
  • the shell comprises a free space provided between at least one face of said at least one alternate vision device and an inner wall of the protective shell.
  • the shell is formed by a monolithic block molded plastic.
  • the shell comprises a first portion and a second portion intended to cover said first portion, said first portion comprising said at least one first housing.
  • FIG. 1 is a schematic view of a viewing window according to a first embodiment of the invention
  • Figure 2 is a schematic view of the frame (or strip) of the viewing window described in Figure 1
  • - Figure 3 is a schematic view of the inside of the frame (or headband) of the viewing window described in Figure 1, according to a particular embodiment of the invention
  • Figure 4 is a schematic view of a particular assembly of active type shutters based on liquid crystal cells, according to a particular embodiment of the invention
  • Figure 5 is a schematic view of the protective shell of the viewing window described in Figure 1, according to a first particular embodiment of the invention
  • Figure 6 is a schematic view of a protective shell according to a second particular embodiment of the invention
  • Figure 7 is a schematic view of a viewing window comprising a protective shell according to a third embodiment of the invention
  • FIG. 8 is a sectional view of the protective shell of FIG. 7.
  • Figure 9 is a schematic view of a particular embodiment of a viewing window.
  • the invention relates to the field of designing viewing glasses for three-dimensional (3D) viewing of digital video contents.
  • the invention relates to a robust and universal viewing bezel.
  • the viewing window comprises an active type of viewing device for viewing video contents emitted by a three-dimensional cinema projector.
  • Figure 1 schematically illustrates a viewing bezel 100 according to a particular embodiment of the invention.
  • this telescope 100 comprises: a frame 101, also called bandeau thereafter; two removable branches 300; at least one display device 102, also called alternating vision device 102, placed opposite each axis of vision of the user.
  • the display device 102 is of removable type and secured to the frame 101 by insertion, for example, of said display device 102 in a housing (not shown in Figure 1) located on the frame 101.
  • This housing is particularly suitable for accommodating and maintaining said display device 102 as further described below in connection with FIGS. 3 and 4.
  • the type of the display device 102 is made in particular from two distinct groups: an active display device group; and a passive display device group.
  • the alternate vision device 102 designates a display device for separately displaying images for each eye to enable three-dimensional viewing of digital video contents.
  • the alternating vision devices 102 are of active type and more particularly shutters or cells based on liquid crystals.
  • the present invention also applies to passive alternate vision devices such as a filter or a polarizer.
  • a passive display device for example a color filter or a polarizing film as described in the preamble of the present application
  • no device for controlling the voltage of said display device is necessary.
  • an active display device for example at least one cell based on liquid crystals
  • a device 103 for controlling the voltage of said display device 102 is necessary.
  • This voltage control device 103 is described in greater detail in the following description with reference to FIG. 2.
  • the substrates of each display device are flexible, for example a substrate of plastic film type.
  • a "thin glass” type substrate is also possible because of the protection provided by a hermetic assembly of the protective shell 200 and the rigid mount 101. Such a hermetic assembly is described hereinafter with reference to FIG.
  • the telescope 100 further comprises an additional protective shell 200 whose role is more fully described in relation with FIG. 2.
  • FIG. 2 schematically illustrates the structure of the frame 101 of a telescope
  • the mount 101 comprises two active display devices 102.
  • it consists of two liquid crystal cells, each cell comprising two faces (102a, 102b) of a substrate (made of thin glass for example) arranged facing each other so as to form said cell.
  • the frame 101 also comprises a device 103 for controlling the voltage of said display device 102 and a detection device 104 of photodiode type, for example, directly molded in the plastic of the frame 101.
  • This detection device 104 can also be positioned directly. on a combination of two liquid crystal shutters as described more fully with reference to FIG. 4.
  • This detection device 104 makes it possible to clock the shutting off of said two display devices 102 by said voltage control device 103.
  • the control device 103 is further powered by an autonomous supply device (not shown) such as a removable battery.
  • Such a feeding device may, for example, be overmoulded in the frame
  • the feeder can also be inserted in the same way as the shutters 200 into a protective shell 200 as more fully described. subsequently, making (for example) part of a strip of connectors ( Figure 4) directly reported on the mount 101
  • this voltage control device 103 is placed on said mount 101 in a housing (not shown in FIG. 2) comprising a connector (not shown as well) adapted to cooperate with said control device 103.
  • the autonomous power supply device is, for example, directly integrated in said control device 103.
  • the autonomous power supply device is included in a removable element.
  • the supply device is molded (or not) in at least one branch 300 of the viewing window 100.
  • a connector adapted to power the display device 102 is in this case performed.
  • this protective shell 200 in case of failure of the voltage control device 103, it is not necessary to completely renew the telescope, unlike a voltage control device directly molded in the frame.
  • the protective shell 200 described in FIG. 5 makes it possible to dispense with the molding of the voltage control device 103.
  • the voltage control device 103 and the device for energizing said control device 103 are placed on the frame 101 laterally (not shown) in the field of view so as to release the orbital ocular zone as much as possible. and frontal.
  • the protective shell 200 has first and third housings (201, 202, Figure 5). Once the mount 101 positioned on the protective shell ( Figure 1), the first housing 201 are intended to accommodate each a shutter 102, the third housing 202 is meanwhile for receiving the voltage control device 103.
  • the frame 101 is in the form of a strip consisting, for example, of thermo-elastic or thermosetting plastic material. It is designed so that it can fit on the protective shell
  • FIG. 3 schematically illustrates, according to one embodiment of the invention, means for fixing the removable shutters 102 on the strip 101.
  • the fixing of the shutters 102 is ensured by a simple insertion of each shutter 102 in a second housing 1010 included in said strip
  • the second housing 1010 comprises at least one lug 1012 for holding each shutter 102 in its second housing 1010.
  • Each lug 1012 makes it possible, in particular, to apply a sufficient pressure to make the shutter 102 integral with the strip 101, without damaging the shutter.
  • the lugs 1012 also facilitate the correct lateral positioning of the shutters 102 in the hull.
  • each second housing 1010 is positioned facing a first housing 201 associated and adapted to each accommodate a shutter 102.
  • each shutter 102 is fixed to the strip 101 by at least one point connection and on one side of its four sides (if one assumes that the shutter is of rectangular shape), for example at the corners of said single side.
  • the shutter is secured to the frame by a fitting connection on the four sides of the shutter, that is to say say on the entirety of its peripheral area.
  • this embedding connection is
  • the strip 101 comprises a fourth additional housing 1011 intended to accommodate the voltage control device 103, in the case where the latter is fixed on the strip as described in FIGS. 4. It should be noted, however, that this device 103 can very well be located in a removable branch or any other location of the viewing window 100, preferably hermetically.
  • the method of attachment is, for example, identical to that adopted for fixing the shutters 102 by means of lugs 1012.
  • the second and fourth housings (1010 and 1011) can be combined to form a single groove
  • Figure 4 schematically illustrates, according to a particular embodiment of the invention, an arrangement particular shutters 102 based on liquid crystal cells of an active type of viewing glasses 100.
  • the shutters 102 are of the active type, it is necessary to control them electrically by means of the voltage control device 103 and to supply them by means of a supply device (not shown). .
  • a flexible connector strip 106 comprising electrical supply and signaling tracks is provided for the supply and the shutter shutter control 102.
  • This connector strip 106 is bonded to the upper side of the shutters 102.
  • the connector strip 106 serves not only to support the shutters 102, but also to a photodetector 104, to the device to the supply device (not shown) and to the control device. in tension.
  • the detection device 104 is placed directly on the connector strip 106, and not within the strip 101 as suggested in FIG. 2.
  • the assembly formed by the two shutters 102 and the voltage control device 103 fixed on the connector strip 106 is cleverly inserted into a continuous housing 1010 (as previously described in connection with FIG. 3) provided in the strip 101, this together being secured to the headband by means of the lugs
  • the strip 101 carrying the shutters 102 and the connector strip 106 are then housed in the first housing 201 of the hull. 200 ( Figure 5), without the shutters come into contact with the walls of the hull.
  • the shutters 102 are suspended vertically from the strip 101, as illustrated in FIG. 2.
  • the same goes for the voltage control device 103 which is housed in its associated third 202 (FIG. ).
  • Figure 5 schematically illustrates the structure of the protective shell 200.
  • the protective shell 200 comprises: at least a first housing 201 intended to receive said at least one display device 102, each first housing 201 having an opening 201a of the shape of said display device 102; at least a third housing 202 for receiving the voltage control device 103 (in the case of an active type display device 102), each third housing 202 also having an opening 202a of the shape of said control device 103 voltage; securing means 203 for securing said protective shell 200 and said frame 101 in a configuration where at least a portion of said frame 101 closes the opening of each first housing 201 and each third housing 202 of said protective shell 200; sealing means 204 for sealing the closure of each first housing 201 and each third housing 202 of said protective shell 200; two fasteners 205 located on either side of the protective shell 200, each of these two fasteners 205 for fixing a branch 300 universal removable.
  • the two display devices 102 selected according to the desired type of application and positioned on the frame (or strip) 101 they are introduced into each corresponding first housing 201 of the protective shell during the nesting of the mount 101 on said shell 200 protection.
  • the protective shell 200 of Figure 5 consists of a first wall 2001 and a second wall 2002 which, once assembled together, form the said shell 200 protection.
  • the protective shell 200 then has a hollow zone 2003 whose walls are at least 0.8 mm apart.
  • the protective shell 200 also has an upper zone 2004 in which are drawn the openings of the first and third housings (201, 202) adapted to cooperate respectively with the shutters 102 and the voltage supply device 103 .
  • This zone 2004 also has the securing means 203 for fitting the frame 101 to said protective shell 200.
  • the two display devices 200 and the voltage control device 103 are thus encompassed by said protective shell 200.
  • Said sealing means 204 ensure that they seal each opening of each first housing 201 and each third housing 202 of said protective shell 200.
  • the protective shell 200 has several advantages. In particular, it makes it possible to protect each display device 102 against external aggression, for example contact with the user's fingers. In indeed, a simple contact on the plastic film substrate is likely to damage the alignment of the liquid crystal.
  • This protective shell 200 also makes it possible to minimize the risk of deformations of the cells induced by bending, twisting and / or pressure forces applied to the viewing window, when it is being handled by a user, in order to avoid any cell damage. The influence of these forces is more fully described later.
  • the protective shell 200 makes it possible to limit the torsional forces induced by the frame on the at least one display device during manipulation of the viewing window by the user, it is then possible to envisage the use "thin glass” type substrates which are very sensitive to torsion.
  • the protective shell 200 comprises a hollow body (or zone) 2003 formed by the first and second walls
  • each first housing 201 and the second housing each have a width of at least
  • the protective shell 200 consists of a monolithic block molded in transparent thermoplastic or thermosetting material with adequate optical properties to allow visualization through the protective shell 200.
  • the present invention advantageously makes it possible to prevent the shutters 102 (or alternating vision device 102) from being at contact of the protective shell.
  • a protective shell 200 also makes it possible to prevent the shell from coming into contact with the shutters 102.
  • This one-piece type protective shell 200 also has the advantage of being lightweight and simple to manufacture according to well-known low-cost molding techniques.
  • said sealing means 204 comprise at least one seal made of a material belonging to the group comprising: o silicone; o elastomer; o rubber.
  • said sealing means 204 are located on said frame 101.
  • the protective shell 200 is made of resistant plastic of the polycarbonate type.
  • the chosen plastic is either completely transparent or transparent only opposite each axis of vision of the user.
  • the choice of plastic also allows to design a lightweight shell for a lower manufacturing cost due to the small number of parts to assemble.
  • said securing means 203 are removable type.
  • the protective shell 200 from the frame 101 in order, for example, to change the protective shell if the latter is damaged (scratches,
  • the securing means 203 may be located on the frame also.
  • the protective shell 200 also includes two fixing devices
  • branches 300 allowing the attachment of a branch 300 removable universal.
  • These two branches are particularly designed to be sufficiently flexible and rigid both to adapt to all morphologies of skulls.
  • these two fastening devices 205 are integral guides of the protective shell and adapted to cooperate with an opening 301 formed on the corresponding branch 300.
  • any other type of removable attachment is possible for fixing the two branches 300 removable on the shell 200 protection.
  • the present invention thus provides a universal viewing bezel 100 (which can accommodate all types of viewing devices, active or passive, conventionally used for 3D digital cinema), robust and low manufacturing cost.
  • the viewing bezel 100 according to the invention is easily washable and compact.
  • the protective shell 200 makes it possible to adapt the external appearance of the viewing window according to the event under consideration.
  • FIG. 6 schematically illustrates a second embodiment of the hull
  • the protective shell 200 has a pair of openings 207 in each of the first and second walls (2001, 2002) of the hull
  • the shutter 102 and the two apertures 207 are aligned along an optical axis in the field of view of each eye of the user.
  • a protective optical element (not shown) consisting, for example of a glass, so as to protect the shutter 102 from any aggression or force of external pressure.
  • the protective glass will be replaced by an optical quality plastic protection element (for example, made of polycarbonate or PMMA).
  • This alternative embodiment of the protective shell 200 of Figure 6 is advantageous in the case where the material used to make the shell is opaque or that it does not have satisfactory optical properties for direct viewing through the shell.
  • the two embodiments of the protective shell 200 of FIGS. 5 and 6 advantageously have a free space (or air gap) between each face (102a, 102b) of a shutter 102 and an inner wall (2001, 2002) corresponding hull 200 protection.
  • each slice of air located on either side of a shutter then acts as a buffer between the shutter 102 and the inner wall (2001, 2002) of the shell, so that each shutter 102 does not come into direct contact with the shell 200 protection.
  • the two shutters 102 undergo relative movement without coming into contact with the protective shell 200.
  • FIG. 7 illustrates a third particular embodiment of the invention in which the protective shell 400 comprises a first part 400a (receptacle) and a second part 400b (cover) intended to cover the first part 400a so as to form said shell 400 once the first and second parts assembled together.
  • the first part 400a comprises two first housing 401 intended to each receive a shutter 102, so as to protect them.
  • the first 400a and second 400b portions of the protective shell 400 each respectively comprise, at the location of each shutter 102, openings (401a, 401b) and (402a, 402b) in which optical elements (408a, 408b) are respectively disposed. ) protection.
  • These optical elements may be made of glass or plastic of optical quality (polymers of polycarbonate or PMMA type).
  • these optical protection elements can be treated by an anti-glare treatment or any other type of treatment.
  • the shutters 102 are disposed between the first 400a and second 400b parts of the shell 400, in the first housing 401 provided, so that the shutters 102 are not integral with the shell 400 (in the extent that there is no mechanical constraint between these two elements).
  • the inner walls of the shell consist mainly of the optical elements (408a, 408b) for protection.
  • a flexible connector strip 106 is also used to distribute the control voltage delivered by the voltage control device 103 and the power supply signal delivered by a power supply device (no represent). Similarly, the connector strip 106 is furthermore used as a support for the supply device, the voltage control device 103 and the detection device 104.
  • control device 103 is also protected from external aggressions by means of a third housing 402 making it possible to receive said device
  • Each shutter 102 is fixed at an upper side to the connector strip 106 which itself rests (not shown in Figure 7) against the first portion 400a (receptacle) of the protective shell 400.
  • the tape of connector 106 serves to support the shutters 102 which are maintained while enjoying a degree of freedom allowing them to move freely in the space provided inside the protective shell.
  • the space provided between the inner faces of the second 400b (lid) first 400a parts of the shell ensures that each shutter does not undergo mechanical stress during the deformation of the shell (to some extent deformation of this one of course).
  • These elements 409 are for example made of foam and glued on a portion of the connector strip 106 intended to be in contact with a protective glass or the first portion 400a of the shell 400
  • the general inventive concept of the solution presented through the three embodiments of the protective shell 200 of FIGS. 5 and 7 consists in separating each alternate vision device 102 from the protective shell 200. According to a complementary approach, it is proposed to further separate the shutters between them, by disconnecting the right part (corresponding to the right eye of the user) and the left part (corresponding to the left eye of the user) of the protective shell.
  • a first solution is to provide a protective shell having a straight portion 502 and a left portion 501 interconnected via an elastic mechanical connection 500 (Figure 9).
  • This elastic mechanical connection can be provided by a central piece of plastic material. The chosen material must however be rigid enough to allow the telescope not to bend when it rests on the nose.
  • the shutter included in the left part of the shell can move independently of the shutter included in the right part of the shell, without the left and right parts right of the shell undergo particular deformation, the deformation being "absorbed" by the piece.
  • a second solution is to conform the protective shell so that the center V-shaped junction area and intended to rest on the user's nose has a degree of freedom sufficient to separate as much as possible the right part and the part left of the protective shell.
  • Such a degree of freedom can be obtained by making this junction zone sufficiently flexible (for example by providing a sufficiently thin thickness for this junction zone).
  • a non-allergenic V-shaped plastic deformable piece can be provided to sufficiently flexibly hold the left and right portions of the bezel. Moreover, this piece can also be used to adapt the telescope to different sizes and shapes of the user's nose, thus providing a standard bezel that can be adapted to both children and adults.
  • the present invention proposes a solution of making a protective shell for a display device for housing the cells while "separating" the protective shell so as to limit the forces induced on said cells during handling.
  • the general inventive concept therefore consists in providing a protective shell such that it is not integral with the cells (no integral connection).
  • the present invention applies not only to active cells based on liquid crystals but also to passive filters or polarizers.

Abstract

Eyeglass for three-dimensional viewing of digital video contents and corresponding protective shell. The invention relates to an eyeglass (100) for three-dimensional viewing of digital video contents, comprising at least one alternate-vision device. According to the invention, the viewing eyeglass (100) is noteworthy in that it comprises a protective shell (200; 400) which is transparent at least at the level of said alternate-vision device, said shell comprising at least a first housing intended to accommodate said alternate-vision device, without contact between said shell and said alternate-viewing device, so that said alternate-vision device is not integral with the protective shell.

Description

Lunette de visualisation en trois dimensions de contenus vidéo numériques, et coque de protection correspondante. Three-dimensional viewing scope of digital video contents, and corresponding protective shell.
1. DOMAINE DE L'INVENTION Le domaine de l'invention concerne le domaine de la conception de lunettes universelles et robustes pour la visualisation en trois dimensions (3D) de contenus vidéo numériques.FIELD OF THE INVENTION The field of the invention relates to the field of the design of universal and robust spectacles for the three-dimensional (3D) visualization of digital video contents.
2. ARRIÈRE-PLAN TECHNOLOGIQUE2. TECHNOLOGICAL BACKGROUND
On connaît, dans l'état de la technique, différents types lunettes pour la visualisation en trois dimensions (3D) de contenus vidéo numériques.In the state of the art, various glasses are known for the three-dimensional (3D) visualization of digital video contents.
Un premier type de lunette concerne une lunette comprenant un dispositif de visualisation constitué d'un film polariseur placé en regard du champ de vision de l'utilisateur et monté sur une monture plastique. Ce premier type de lunette, dite lunette de visualisation de type passif, est utilisé dans le cadre d'un procédé connu sous le nom de « RealD » (marque déposée). Ce procédé utilise notamment un projecteur comprenant une partie active à cristaux liquides connu sous le nom de « Zscreen » ^marque déposée) et placée devant l'objectif dudit projecteur, polarisant ainsi alternativement la lumière dans des états circulaires opposés.A first type of telescope relates to a telescope comprising a display device consisting of a polarizing film placed opposite the user's field of vision and mounted on a plastic mount. This first type of bezel, called the passive type of viewing bezel, is used in the context of a process known under the name of "RealD" (registered trademark). This method notably uses a projector comprising an active liquid crystal part known by the name "Zscreen" (trademark) and placed in front of the objective of said projector, thus alternately polarizing the light in opposite circular states.
L'avantage de ce premier type de lunette est son faible coût. De telles lunettes peuvent donc être renouvelées à chaque séance.The advantage of this first type of glasses is its low cost. Such glasses can be renewed at each session.
Un deuxième type de lunette de visualisation de type passif est également utilisé dans un dispositif connu sous le nom de dispositif « Dolby » (marque déposée). Ce deuxième type de lunette comprend un dispositif de visualisation constitué d'un film de type filtre coloré placé en regard du champ de vision de l'utilisateur et monté sur une monture plastique. Le projecteur comprend quant à lui une partie active à base de filtres chromatiques placés devant l'objectif du projecteur.A second type of passive type viewing bezel is also used in a device known as the "Dolby" device (registered trademark). This second type of bezel comprises a display device consisting of a color filter film placed facing the field of view of the user and mounted on a plastic mount. The projector includes an active part based on color filters placed in front of the projector lens.
Un troisième type de lunettes, dite lunette de visualisation de type actif, propose d'occulter successivement la vision de l'œil gauche et de l'œil droit grâce à un dispositif de visualisation comprenant au moins une cellule à cristaux liquides placée en regard de chaque oeil. L'obturation de la ou les cellules est commandée en tension par un dispositif de commande en tension. La transparence ou l'opacité de chaque œil est synchronisée sur la fréquence de projection des images en provenance du projecteur grâce à un émetteur infrarouge émettant un signal infrarouge à destination d'un dispositif de détection de type photodiode directement intégrée sur la monture de la lunette de visualisation. Sur détection d'un signal infrarouge, ce dispositif de détection émet un signal vers ledit dispositif de commande en tension afin de réaliser l'obturation du cristal liquide contenu dans chaque cellule à base de cristaux liquides.A third type of glasses, called the active type of viewing window, proposes to conceal successively the vision of the left eye and the right eye through a display device comprising at least one liquid crystal cell placed next to every eye. The shutter of the cell or cells is voltage controlled by a voltage control device. The transparency or opacity of each eye is synchronized to the projection frequency of the images from the projector through an infrared transmitter emitting an infrared signal to a photodiode-type detection device directly integrated on the frame of the viewing window. Upon detection of an infrared signal, this detection device transmits a signal to said voltage control device in order to shut off the liquid crystal contained in each liquid crystal-based cell.
Cependant, ces lunettes de type actif sont relativement coûteuses pour le cinéma en salle. Il s'avère dans ce cas nécessaire de les récupérer et de les nettoyer après chaque séance. Ainsi, inévitablement, la monture subit des mouvements de torsion lors des différentes manipulations en séance publique et au cours du lavageHowever, these active type glasses are relatively expensive for theatrical cinema. In this case, it is necessary to retrieve and clean them after each session. Thus, inevitably, the frame undergoes twisting movements during the various manipulations in public session and during the washing
En effet, lors des différentes manipulations en séance publique et au cours du lavage, les substrats de « type verre mince » ou bien de « type flexible » s'abîment rapidement, aussi bien pour des lunettes de type actif que pour des lunettes de type passifIndeed, during the various manipulations in public session and during washing, the substrates of "thin glass type" or "flexible type" deteriorate quickly, both for glasses of the active type that for glasses type passive
Egalement, pour des lunettes de visualisation classique actives à base des cristaux liquides pour la visualisation en trois dimensions, les cellules actives à cristaux liquides sont classiquement totalement solidaires de la monture. Chaque cellule est encastrée fermement dans une ouverture de la monture prévue à cet effet, de telle sorte que toute la partie périphérique de la cellule soit en contact avec la monture.Also, for active viewing glasses based on liquid crystals for viewing in three dimensions, the active liquid crystal cells are conventionally totally integral with the frame. Each cell is embedded firmly in an opening of the frame provided for this purpose, so that the entire peripheral portion of the cell is in contact with the frame.
Il a été constaté qu'avec une telle structure, le taux d'endommagement des lunettes de visualisation 3D est relativement élevé. Ceci est dû notamment au fait que les cellules ne sont pas suffisamment protégées des déformations induites par des mouvements de torsion, flexion et/ou pression transmises par la monture, lors de la manipulation des lunettes. En effet, la flexion de la monture peut alors provoquer une torsion et éventuellement le bris de ce type de substrats en verre de type verre mince.It has been found that with such a structure, the damage rate of the 3D viewing glasses is relatively high. This is due in particular to the fact that the cells are not sufficiently protected from the deformations induced by torsional movements, bending and / or pressure transmitted by the frame during the manipulation of the glasses. Indeed, the bending of the frame can then cause a twist and possibly the breakage of this type of thin glass type glass substrates.
Pour des substrats flexibles de type film en plastique, ceux-ci sont également sensibles à la torsion mais ne cassent pas contrairement aux substrats en verre.For flexible substrates of the plastic film type, these are also sensitive to torsion but do not break unlike glass substrates.
En outre, une légère pression des doigts d'un utilisateur sur ces substrats de type « verre mince » et surtout de type « film plastique » peut en outre endommager l'alignement des cristaux liquides. Ainsi, les opérations de lavage et les manipulations en salle par les spectateurs de ce type de lunette de visualisation sont particulièrement délicates.In addition, a slight pressure of the fingers of a user on these substrates of the "thin glass" type and especially of the "plastic film" type can further damage the alignment of the liquid crystals. Thus, the washing operations and the manipulations in the room by the spectators of this type of viewing glasses are particularly delicate.
Un autre inconvénient commun aux trois types de lunettes cités concerne la compatibilité entre ces trois types de lunettes. En effet, chaque type de lunette comprend un dispositif de visualisation propre à son utilisation. Ainsi, une lunette d'un premier type ne peut être utilisée avec un projecteur nécessitant des lunettes du troisième type par exemple. Il est donc nécessaire de renouveler lot complet de lunettes de visualisation à chaque changement de format de projection. 3. OBJECTIFS DE L'INVENTION L'invention, dans au moins un mode de réalisation, a notamment pour objectif de pallier ces différents inconvénients de l'état de la technique appliquée au contexte du cinéma en salle.Another disadvantage common to the three types of glasses cited concerns the compatibility between these three types of glasses. Indeed, each type of bezel includes a display device specific to its use. Thus, a bezel of a first type can not be used with a projector requiring glasses of the third type for example. It is therefore necessary to renew a complete batch of viewing glasses at each change of projection format. 3. OBJECTIVES OF THE INVENTION The invention, in at least one embodiment, has the particular objective of overcoming these various disadvantages of the state of the art applied to the context of cinema in the theater.
Plus précisément, dans au moins un mode de réalisation de l'invention, un objectif est de minimiser le risque de déformations des cellules induites par des forces de flexion, torsion et/ou pression appliquées à la lunette de visualisation, lors de sa manipulation par un utilisateur, en vue d'éviter tout endommagement des cellules.More specifically, in at least one embodiment of the invention, one objective is to minimize the risk of deformations of the cells induced by bending, torsion and / or pressure forces applied to the viewing window, when it is manipulated by a user, in order to avoid damage to the cells.
Un autre objectif est de fournir un type de lunette universel permettant de s'adapter à tous les systèmes actuels de visualisation.Another objective is to provide a type of universal telescope to adapt to all current visualization systems.
Au moins un mode de réalisation de l'invention a également pour objectif de fournir une lunette de visualisation robuste et étanche.At least one embodiment of the invention also aims to provide a robust and waterproof viewing bezel.
Un autre objectif d'au moins un mode de réalisation de l'invention est de fournir une lunette de visualisation peu encombrante et légère.Another objective of at least one embodiment of the invention is to provide a space saving and lightweight viewing bezel.
Un objectif complémentaire d'au moins un mode de réalisation de l'invention est de fournir une lunette de visualisation à faible coût de fabrication. 4. EXPOSÉ DE L'INVENTIONA complementary objective of at least one embodiment of the invention is to provide a low cost manufacturing display. 4. PRESENTATION OF THE INVENTION
Dans un mode de réalisation particulier de l'invention, il est proposé une lunette de visualisation en trois dimensions de contenus vidéo numériques comprenant au moins un dispositif de vision alternée (102).In a particular embodiment of the invention, there is provided a three-dimensional viewing window of digital video contents comprising at least one alternating vision device (102).
Selon l'invention, ladite lunette est remarquable en ce qu'elle comprend une coque de protection transparente au moins au niveau dudit dispositif de vision alternée, ladite coque comprenant au moins un premier logement destiné à accueillir ledit dispositif de vision alternée, sans contact entre ladite coque et ledit dispositif de vision alternée, de sorte que ledit dispositif de vision alternée n'est pas solidaire de la coque de protection.According to the invention, said telescope is remarkable in that it comprises a transparent protective shell at least at the level of said alternate vision device, said shell comprising at least a first housing intended to accommodate said alternate vision device, without contact between said shell and said alternate vision device, so that said alternate vision device is not secured to the protective shell.
Ainsi, dans ce mode de réalisation particulier, l'invention repose sur une approche tout à fait nouvelle et inventive de réalisation d'une lunette de visualisation comprenant une monture rigide et une coque de protection hermétique interchangeable, simple à mettre en œuvre et permettant de protéger le dispositif de visualisation contre une agression extérieure (rayure, opération de lavage,...) et/ou une mauvaise manipulation de l'utilisateur. Une telle coque permet de protéger le dispositif de vision alternée contre toute agression extérieure (choc, rayure) et également contre des déformations mécaniques induites par des forces de torsion, flexion, et/ou pression induites sur la coque, lors d'une manipulation de la lunette de visualisation par un utilisateur. Ledit dispositif de vision alternée est désolidarisé de la coque, dans le sens où aucune contrainte mécanique n'est appliquée sur le dispositif de vision alternée par la coque lors d'éventuelles déformations de celles-ci. L'absence de contraintes mécaniques (ou désolidarisation) entre le dispositif de vision alternée et la coque de protection fournit un degré de liberté supplémentaire permettant d'éviter une transmission des déformations mécaniques de la coque sur le dispositif de vision alternée. Le dispositif de vision alternée n'est donc pas contraint de subir les déformations de la coque de protection.Thus, in this particular embodiment, the invention is based on a completely new and inventive approach to producing a viewing window comprising a rigid frame and an interchangeable hermetic protective shell, which is simple to use and allows for protect the display device against external aggression (scratching, washing operation, ...) and / or mishandling of the user. Such a shell makes it possible to protect the alternating vision device against any external aggression (shock, scratch) and also against mechanical deformations induced by torsional forces, bending, and / or pressure induced on the shell, during a manipulation of the viewing window by a user. Said alternating vision device is detached from the shell, in the sense that no mechanical stress is applied to the alternate vision device by the shell during any deformation thereof. The absence of mechanical stresses (or disconnection) between the alternate vision device and the protective shell provides an additional degree of freedom to prevent transmission of mechanical deformations of the shell on the alternate vision device. The alternate vision device is therefore not forced to undergo the deformations of the protective shell.
Egalement, la coque de protection permet de limiter les efforts de torsion induits par la monture sur ledit au moins dispositif de visualisation lors de la manipulation de la lunette de visualisation par l'utilisateur.Also, the protective shell makes it possible to limit the twisting forces induced by the frame on the at least one display device during the manipulation of the viewing window by the user.
De manière avantageuse, la lunette de visualisation comprend un espace libre prévu entre au moins une face dudit au moins un dispositif de vision alternée et une paroi interne de la coque de protection.Advantageously, the viewing window comprises a free space provided between at least one face of said at least one alternate vision device and an inner wall of the protective shell.
Ainsi, l'espace libre fournit une tranche d'air, ajoutant une tolérance géométrique ou du jeu entre chaque dispositif de vision alternée et la coque de protection. L'espacement entre le dispositif de vision alternée et une paroi interne de la coque de protection est prévu pour que cette paroi interne puisse se déformer librement sans entrer en contact avec le dispositif de vision alternée. Selon une caractéristique avantageuse d'un mode de réalisation de l'invention, la lunette comprend un bandeau comportant au moins un second logement destiné à recevoir ledit au moins dispositif de vision alternée, et des moyens de fixation dudit au moins un dispositif de vision alternée dans ledit au moins un second logement. Ainsi, il est possible d' interchanger le dispositif de vision alternée en cas de défaillance de ce dernier. Un tel bandeau permet en outre de positionner chaque dispositif de vision alternée, de façon à ce qu'il ne soit pas en contact de la coque de protection.Thus, the free space provides an air slice, adding a geometric tolerance or clearance between each alternate vision device and the protective shell. The spacing between the alternating vision device and an inner wall of the protective shell is provided so that the inner wall can freely deform without coming into contact with the alternate vision device. According to an advantageous characteristic of an embodiment of the invention, the telescope comprises a strip comprising at least a second housing intended to receive the said at least alternate vision device, and means for fixing the at least one alternate vision device. in said at least one second housing. Thus, it is possible to interchange the alternate vision device in case of failure of the latter. Such a strip also makes it possible to position each alternate vision device, so that it is not in contact with the protective shell.
Avantageusement, la lunette comprend des moyens de solidarisation compris dans ladite coque de protection et/ou dans ledit bandeau, permettant de solidariser la coque de protection et le bandeau dans une configuration où au moins une partie dudit bandeau vient obturer chaque ouverture de chaque premier logement de ladite coque de protection.Advantageously, the telescope comprises securing means included in said protective shell and / or in said strip, for securing the protective shell and the strip in a configuration where at least a portion of said strip closes each opening of each first housing of said protective shell.
Ainsi, les dispositifs de vision alternée sont protégés des agressions extérieures, notamment lors des opérations de lavage.Thus, alternating vision devices are protected from external aggression, especially during washing operations.
De manière avantageuse, la coque de protection comprend une première partie et une deuxième partie destinée à recouvrir ladite première partie, ladite première partie comprenant ledit au moins un premier logement.Advantageously, the protective shell comprises a first portion and a second portion intended to cover said first portion, said first portion comprising said at least one first housing.
Ce mode de réalisation particulier de l'invention offre la possibilité de changer facilement la face avant de la coque de protection, sans avoir à changer l'intégralité de cette coque. Ainsi, en cas d'endommagement de la face avant de la coque de protection ou dans le cas du renouvellement d'un affichage publicitaire ou d'une marque apposée sur cette face avant, il n'est pas nécessaire de remplacer toute la coque ni de manipuler des obturateurs (contrairement au premier mode de réalisation où l'opérateur aurait besoin de retirer le bandeau portant les obturateurs).This particular embodiment of the invention offers the possibility of easily changing the front face of the protective shell, without having to change the entirety of this shell. Thus, in the event of damage to the front face of the protective shell or in the case of the renewal of an advertising display or a mark affixed to this front face, it is not necessary to replace the entire hull or to manipulate shutters (unlike the first embodiment where the operator would need to remove the strip carrying the shutters).
Avantageusement, ledit au moins un dispositif de vision alternée appartient au groupe comprenant : des dispositifs de vision alternée de type actif ; des dispositifs de vision alternée de type passif. Ainsi, la lunette de visualisation selon l'invention est compatible avec l'ensemble des différents types de dispositifs de visualisation, passif ou actif. En outre, pour un dispositif de vision alternée du type actif et commandé en tension par un dispositif de commande en tension, ladite lunette de visualisation est remarquable en ce que ladite coque de protection comprend au moins un troisième logement destiné à accueillir ledit dispositif de commande en tension. Ainsi, le dispositif de commande en tension est également protégé par ladite coque de protection dès lors que cette dernière est solidaire de la monture.Advantageously, said at least one alternate vision device belongs to the group comprising: active type alternating vision devices; alternate vision devices of the passive type. Thus, the viewing window according to the invention is compatible with all the different types of display devices, passive or active. Furthermore, for an active-type alternating vision device controlled in tension by a voltage control device, said viewing window is remarkable in that said protective shell comprises at least a third housing intended to accommodate said control device. in tension. Thus, the voltage control device is also protected by said protective shell when the latter is secured to the frame.
Selon une caractéristique particulière de l'invention, ledit au moins un dispositif de vision alternée comprend au moins un substrat flexible appartenant au groupe des films plastiques souples de type polyester. Ainsi, l'utilisation de substrats flexibles en association avec ladite coque de protection permet de limiter le nombre de lunettes endommagées lors des opérations de lavage et de manipulation en salle par les spectateurs.According to a particular characteristic of the invention, said at least one alternate vision device comprises at least one flexible substrate belonging to the group of flexible plastic films of polyester type. Thus, the use of flexible substrates in association with said protective shell makes it possible to limit the number of glasses damaged during washing and handling operations in the theater by the spectators.
Avantageusement, la coque de protection est en plastique résistant de type résine (thermodurcissable, ou thermoplastique). Une telle coque de protection permet notamment de réaliser une lunette de visualisation légère et à moindre coût.Advantageously, the protective shell is made of resin resistant plastic (thermosetting or thermoplastic). Such a protective shell makes it possible in particular to produce a lightweight viewing window and at a lower cost.
L'invention concerne également une coque de protection comprenant au moins un premier logement destiné à accueillir ledit au moins un dispositif de vision alternée, ladite coque de protection étant transparente au moins au niveau dudit au moins un dispositif de vision alternée, ledit au moins un dispositif de vision alternée n'étant pas solidaire de la coque de protection.The invention also relates to a protective shell comprising at least a first housing intended to accommodate said at least one alternate vision device, said protective shell being transparent at least at the level of said at least one alternate vision device, said at least one alternating vision device not being integral with the protective shell.
Selon une caractéristique de l'invention, la coque comprend un espace libre prévu entre au moins une face dudit au moins un dispositif de vision alternée et une paroi interne de la coque de protection. Selon une caractéristique intéressante, la coque est formée par un bloc monolithique moulé en matière plastique.According to one characteristic of the invention, the shell comprises a free space provided between at least one face of said at least one alternate vision device and an inner wall of the protective shell. According to an interesting feature, the shell is formed by a monolithic block molded plastic.
Selon une autre caractéristique intéressante, la coque comprend une première partie et une deuxième partie destinée à recouvrir ladite première partie, ladite première partie comprenant ledit au moins un premier logement. 5. LISTE DES FIGURES D'autres caractéristiques et avantages de modes de réalisation de l'invention apparaîtront à la lecture de la description suivante, donnée à titre d'exemple indicatif et non limitatif (tous les modes de réalisation de l'invention ne sont pas limités aux caractéristiques et avantages des modes de réalisation décrits ci-après), et des dessins annexés, dans lesquels : la figure 1 est une vue schématique d'une lunette de visualisation selon un premier mode de réalisation de l'invention ; la figure 2 est une vue schématique de la monture (ou bandeau) de la lunette de visualisation décrite sur la figure 1 ; - la figure 3 est une vue schématique de l'intérieur de la monture (ou bandeau) de la lunette de visualisation décrite sur la figure 1, selon un mode de réalisation particulier de l'invention ; la figure 4 est une vue schématique d'un assemblage particulier d'obturateurs de type actif à base de cellules à cristaux liquides, selon un mode de réalisation particulier de l'invention ; la figure 5 est une vue schématique de la coque de protection de la lunette de visualisation décrite sur la figure 1, selon un premier mode de réalisation particulier de l'invention ; la figure 6 est une vue schématique d'une coque de protection selon un second mode de réalisation particulier de l'invention ; la figure 7 est une vue schématique d'une lunette de visualisation comprenant une coque de protection selon un troisième mode de réalisation de l'invention ; la figure 8 est une vue en coupe de la coque de protection de la figure 7.According to another interesting feature, the shell comprises a first portion and a second portion intended to cover said first portion, said first portion comprising said at least one first housing. 5. LIST OF FIGURES Other features and advantages of embodiments of the invention will become apparent on reading the following description, given by way of indicative and nonlimiting example (all the embodiments of the invention are not limited to the characteristics and advantages of the embodiments described hereinafter), and the accompanying drawings, in which: FIG. 1 is a schematic view of a viewing window according to a first embodiment of the invention; Figure 2 is a schematic view of the frame (or strip) of the viewing window described in Figure 1; - Figure 3 is a schematic view of the inside of the frame (or headband) of the viewing window described in Figure 1, according to a particular embodiment of the invention; Figure 4 is a schematic view of a particular assembly of active type shutters based on liquid crystal cells, according to a particular embodiment of the invention; Figure 5 is a schematic view of the protective shell of the viewing window described in Figure 1, according to a first particular embodiment of the invention; Figure 6 is a schematic view of a protective shell according to a second particular embodiment of the invention; Figure 7 is a schematic view of a viewing window comprising a protective shell according to a third embodiment of the invention; FIG. 8 is a sectional view of the protective shell of FIG. 7.
La figure 9 est une vue schématique d'un mode de réalisation particulier d'une lunette de visualisation.Figure 9 is a schematic view of a particular embodiment of a viewing window.
6. DESCRIPTION DÉTAILLÉE6. DETAILED DESCRIPTION
L'invention concerne le domaine de la conception de lunettes de visualisation pour la visualisation en trois dimensions (3D) de contenus vidéo numériques.The invention relates to the field of designing viewing glasses for three-dimensional (3D) viewing of digital video contents.
Plus précisément, l'invention concerne une lunette de visualisation robuste et universelle. Dans la suite de la description illustrant un mode de réalisation préférentiel et non limitatif, la lunette de visualisation comprend un dispositif de visualisation de type actif pour la visualisation de contenus vidéo émis par un projecteur de cinéma en trois dimensions. La figure 1 illustre schématiquement une lunette 100 de visualisation selon un mode de réalisation particulier de l'invention.More specifically, the invention relates to a robust and universal viewing bezel. In the remainder of the description illustrating a preferred and nonlimiting embodiment, the viewing window comprises an active type of viewing device for viewing video contents emitted by a three-dimensional cinema projector. Figure 1 schematically illustrates a viewing bezel 100 according to a particular embodiment of the invention.
Classiquement, cette lunette 100 comprend : une monture 101, encore appelée bandeau par la suite ; deux branches amovibles 300 ; - au moins un dispositif de visualisation 102, encore appelé dispositif de vision alternée 102, placé en regard de chaque axe de vision de l'utilisateur.Classically, this telescope 100 comprises: a frame 101, also called bandeau thereafter; two removable branches 300; at least one display device 102, also called alternating vision device 102, placed opposite each axis of vision of the user.
Le dispositif de visualisation 102 est de type amovible et rendu solidaire de la monture 101 par insertion, par exemple, dudit dispositif de visualisation 102 dans un logement (non représenté sur la figure 1) situé sur la monture 101. Ce logement est notamment adapté à accueillir et maintenir ledit dispositif de visualisation 102 tel que plus amplement décrit par la suite en relation avec les figures 3 et 4.The display device 102 is of removable type and secured to the frame 101 by insertion, for example, of said display device 102 in a housing (not shown in Figure 1) located on the frame 101. This housing is particularly suitable for accommodating and maintaining said display device 102 as further described below in connection with FIGS. 3 and 4.
Ainsi, en fonction du type de projecteur utilisé, il est possible de choisir le type du dispositif de visualisation 102. Ce choix est notamment réalisé parmi deux groupes distincts : - un groupe de dispositif de visualisation actif ; et un groupe de dispositif de visualisation passif.Thus, depending on the type of projector used, it is possible to choose the type of the display device 102. This choice is made in particular from two distinct groups: an active display device group; and a passive display device group.
Le dispositif de vision alternée 102 désigne un dispositif de visualisation permettant une visualisation d'images de manière séparée pour chaque œil pour permettre une visualisation en trois dimensions de contenus vidéo numériques. Dans la suite de la description, les dispositifs de vision alternée 102 sont de type actif et plus particulièrement des obturateurs ou cellules à base de cristaux liquides. Toutefois, la présente invention s'applique également à des dispositifs de vision alternée passifs tels qu'un filtre ou un polariseur.The alternate vision device 102 designates a display device for separately displaying images for each eye to enable three-dimensional viewing of digital video contents. In the rest of the description, the alternating vision devices 102 are of active type and more particularly shutters or cells based on liquid crystals. However, the present invention also applies to passive alternate vision devices such as a filter or a polarizer.
Pour un dispositif de visualisation passif, par exemple un filtre coloré ou bien un film polariseur tel que décrit dans le préambule de la présente demande, aucun dispositif de commande en tension dudit dispositif de visualisation n'est nécessaire. Pour un dispositif de visualisation actif, par exemple au moins une cellule à base de cristaux liquides, un dispositif 103 de commande en tension dudit dispositif de visualisation 102 est nécessaire. Ce dispositif 103 de commande en tension est décrit plus amplement dans la suite de la description en relation avec la figure 2. Préférentiellement, les substrats de chaque dispositif de visualisation sont flexibles comme par exemple un substrat de type film plastique.For a passive display device, for example a color filter or a polarizing film as described in the preamble of the present application, no device for controlling the voltage of said display device is necessary. For an active display device, for example at least one cell based on liquid crystals, a device 103 for controlling the voltage of said display device 102 is necessary. This voltage control device 103 is described in greater detail in the following description with reference to FIG. 2. Preferably, the substrates of each display device are flexible, for example a substrate of plastic film type.
Bien que beaucoup plus fragile, un substrat de type « verre mince » est également envisageable du fait de la protection réalisée par un assemblage hermétique de la coque de protection 200 et de la monture 101 rigide. Un tel assemblage hermétique est décrit par la suite en relation avec la figure 3.Although much more fragile, a "thin glass" type substrate is also possible because of the protection provided by a hermetic assembly of the protective shell 200 and the rigid mount 101. Such a hermetic assembly is described hereinafter with reference to FIG.
Selon l'invention, la lunette 100 comprend en outre une coque de protection 200 additionnelle dont le rôle est plus amplement décrit en relation avec la figure 2.According to the invention, the telescope 100 further comprises an additional protective shell 200 whose role is more fully described in relation with FIG. 2.
La figure 2 illustre schématiquement la structure de la monture 101 d'une lunetteFIG. 2 schematically illustrates the structure of the frame 101 of a telescope
100 de visualisation active selon le mode de réalisation de l'invention. Par souci de clarté et de compréhension, la monture 101 comprend deux dispositifs de visualisation 102 actifs. Par exemple, il s'agit de deux cellules à cristaux liquides, chaque cellule comprenant deux faces (102a, 102b) d'un substrat (en verre mince par exemple) disposées l'une en regard de l'autre de façon à former ladite cellule.100 of active display according to the embodiment of the invention. For the sake of clarity and understanding, the mount 101 comprises two active display devices 102. For example, it consists of two liquid crystal cells, each cell comprising two faces (102a, 102b) of a substrate (made of thin glass for example) arranged facing each other so as to form said cell.
La monture 101 comprend également un dispositif 103 de commande en tension dudit dispositif de visualisation 102 et un dispositif de détection 104 de type photodiode, par exemple, directement moulé dans le plastique de la monture 101. Ce dispositif de détection 104 peut également être positionné directement sur une association de deux obturateurs à cristaux liquides tel que décrit plus amplement en relation avec la figure 4.The frame 101 also comprises a device 103 for controlling the voltage of said display device 102 and a detection device 104 of photodiode type, for example, directly molded in the plastic of the frame 101. This detection device 104 can also be positioned directly. on a combination of two liquid crystal shutters as described more fully with reference to FIG. 4.
Ce dispositif de détection 104 permet de cadencer l'obturation desdits deux dispositifs de visualisation 102 par ledit dispositif 103 de commande en tension.This detection device 104 makes it possible to clock the shutting off of said two display devices 102 by said voltage control device 103.
Le dispositif 103 de commande est en outre alimenté par un dispositif d'alimentation (non représenté) autonome tel une pile amovible.The control device 103 is further powered by an autonomous supply device (not shown) such as a removable battery.
Un tel dispositif d'alimentation peut, par exemple, être surmoulé dans la montureSuch a feeding device may, for example, be overmoulded in the frame
101 ou bien être rapporté sur tout autre élément, de préférence de manière hermétique. Le dispositif d'alimentation peut également être inséré de manière aux obturateurs identique dans une coque 200 de protection tel que plus amplement décrit par la suite, en faisant (par exemple) partie intégrante d'une bande de connectique (figure 4) directement rapportée sur la monture 101101 or be attached to any other element, preferably hermetically. The feeder can also be inserted in the same way as the shutters 200 into a protective shell 200 as more fully described. subsequently, making (for example) part of a strip of connectors (Figure 4) directly reported on the mount 101
Avantageusement, ce dispositif 103 de commande en tension est placé sur ladite monture 101 dans un logement (non représenté sur la figure 2) comprenant une connectique (non représentée également) adaptée à coopérer avec ledit dispositif 103 de commande. Le dispositif d'alimentation autonome est, par exemple, directement intégré dans ledit dispositif 103 de commande.Advantageously, this voltage control device 103 is placed on said mount 101 in a housing (not shown in FIG. 2) comprising a connector (not shown as well) adapted to cooperate with said control device 103. The autonomous power supply device is, for example, directly integrated in said control device 103.
Selon un autre mode de réalisation particulier de l'invention, pour éviter de désolidariser trop souvent la coque de protection 200 et la monture 101 dès lors que la charge du dispositif d'alimentation autonome est trop faible, le dispositif d'alimentation autonome est compris dans un élément amovible.According to another particular embodiment of the invention, to avoid too often separating the protective shell 200 and the mount 101 when the load of the autonomous power supply device is too low, the autonomous power supply device is included in a removable element.
Par exemple, le dispositif d'alimentation est moulé (ou non) dans au moins une branche 300 de la lunette de visualisation 100. Une connectique adaptée à alimenter le dispositif de visualisation 102 est dans ce cas réalisée. Egalement, grâce à cette coque de protection 200, en cas de défaillance du dispositif 103 de commande en tension, il n'est pas nécessaire de renouveler complètement la lunette, contrairement à un dispositif de commande en tension directement moulé dans la monture.For example, the supply device is molded (or not) in at least one branch 300 of the viewing window 100. A connector adapted to power the display device 102 is in this case performed. Also, thanks to this protective shell 200, in case of failure of the voltage control device 103, it is not necessary to completely renew the telescope, unlike a voltage control device directly molded in the frame.
En effet, il est d'usage de mouler directement le dispositif 103 de commande en tension afin de rendre étanche ce dernier, notamment lors des opérations de lavage de la lunette. Tel qu'expliqué par la suite, la coque de protection 200 décrite sur la figure 5 permet de s'affranchir du moulage du dispositif 103 de commande en tension.Indeed, it is customary to directly mold the voltage control device 103 in order to seal the latter, especially during washing operations of the telescope. As explained below, the protective shell 200 described in FIG. 5 makes it possible to dispense with the molding of the voltage control device 103.
De manière préférentielle, le dispositif 103 de commande en tension et le dispositif de mise sous tension dudit dispositif 103 de commande sont placés sur la monture 101 de façon latérale (non représenté) au champ de vision de manière à libérer au maximum la zone oculaire orbitale et frontale.Preferably, the voltage control device 103 and the device for energizing said control device 103 are placed on the frame 101 laterally (not shown) in the field of view so as to release the orbital ocular zone as much as possible. and frontal.
Tel que plus amplement décrit par la suite, selon un mode de réalisation particulier de l'invention, la coque de protection 200 présente des premier et troisième logements (201, 202 ; figure 5). Une fois la monture 101 positionnée sur la coque de protection (figure 1), les premiers logements 201 sont destinés à accueillir chacun un obturateur 102, le troisième logement 202 est quant à lui destiné à accueillir le dispositif 103 de commande en tension.As more fully described below, according to a particular embodiment of the invention, the protective shell 200 has first and third housings (201, 202, Figure 5). Once the mount 101 positioned on the protective shell (Figure 1), the first housing 201 are intended to accommodate each a shutter 102, the third housing 202 is meanwhile for receiving the voltage control device 103.
Selon un mode de réalisation de l'invention, la monture 101 présente la forme d'un bandeau constitué, par exemple, en matière plastique thermo-élastique ou thermo- durcissable. Il est conçu de telle sorte qu'il puisse s'emboîter sur la coque de protectionAccording to one embodiment of the invention, the frame 101 is in the form of a strip consisting, for example, of thermo-elastic or thermosetting plastic material. It is designed so that it can fit on the protective shell
200, tel que plus amplement décrit par la suite en relation avec la figure 5.200, as more fully described later in connection with Figure 5.
La figure 3 illustre schématiquement, selon un mode de réalisation de l'invention, des moyens de fixation des obturateurs 102 amovibles sur le bandeau 101.FIG. 3 schematically illustrates, according to one embodiment of the invention, means for fixing the removable shutters 102 on the strip 101.
Par exemple, la fixation des obturateurs 102 est assurée par une simple insertion de chaque obturateur 102 dans un second logement 1010 compris dans ledit bandeauFor example, the fixing of the shutters 102 is ensured by a simple insertion of each shutter 102 in a second housing 1010 included in said strip
101. A cet effet, le second logement 1010 comprend au moins un ergot 1012 destiné à maintenir chaque obturateur 102 dans son second logement 1010.101. For this purpose, the second housing 1010 comprises at least one lug 1012 for holding each shutter 102 in its second housing 1010.
Chaque ergot 1012 permet notamment, d'appliquer une pression suffisante pour rendre l'obturateur 102 solidaire du bandeau 101, sans pour autant endommager l'obturateur. Les ergots 1012 facilitent également le positionnement latéral correct des obturateurs 102 dans la coque.Each lug 1012 makes it possible, in particular, to apply a sufficient pressure to make the shutter 102 integral with the strip 101, without damaging the shutter. The lugs 1012 also facilitate the correct lateral positioning of the shutters 102 in the hull.
Tel que décrit par la suite en relation avec la figure 5, une fois le bandeau 101 emboîté sur la coque de protection, chaque second logement 1010 se retrouve positionné en regard d'un premier logement 201 associé et adapté à accueillir chacun un obturateur 102.As described below in connection with FIG. 5, once the strip 101 has been fitted onto the protective shell, each second housing 1010 is positioned facing a first housing 201 associated and adapted to each accommodate a shutter 102.
Toutefois, il est possible d'utiliser d'autres moyens de fixation bien connus pour fixer les obturateurs 102 au bandeau 101 comme par exemple une fixation par collage en utilisant de la colle silicone ou des bandes adhésives. En particulier, pour renforcer le maintien des obturateurs sur le bandeau, on peut également envisager d'appliquer au moins un point de colle au niveau de chaque ergot.However, it is possible to use other well-known fastening means for attaching the shutters 102 to the strip 101 such as for example a gluing attachment using silicone glue or adhesive tapes. In particular, to enhance the retention of the shutters on the strip, it is also possible to consider applying at least one glue point at each lug.
Quelque soit le moyen de fixation utilisé pour fixer les obturateurs 102 sur le bandeau 101, il convient de noter que chaque obturateur 102 est fixé au bandeau 101 par au moins une liaison ponctuelle et sur un seul côté de ses quatre côtés (si l'on suppose que l'obturateur est de forme rectangulaire), par exemple au niveau des coins dudit seul côté. Alors qu'au contraire, dans le cas de lunettes classiques, l'obturateur est solidaire de la monture par une liaison d'encastrement sur les quatre côtés de l'obturateur, c'est-à- dire sur l'intégralité de sa zone périphérique. De plus, cette liaison d'encastrement estWhatever the fixing means used to fix the shutters 102 on the strip 101, it should be noted that each shutter 102 is fixed to the strip 101 by at least one point connection and on one side of its four sides (if one assumes that the shutter is of rectangular shape), for example at the corners of said single side. Whereas on the contrary, in the case of conventional spectacles, the shutter is secured to the frame by a fitting connection on the four sides of the shutter, that is to say say on the entirety of its peripheral area. In addition, this embedding connection is
« rigide » et en aucun cas « élastique »."Rigid" and in no way "elastic".
Selon un mode de réalisation particulier de l'invention, le bandeau 101 comprend un quatrième logement 1011 supplémentaire destiné à accueillir le dispositif 103 de commande en tension, dans le cas où ce dernier serait fixé sur le bandeau tel que décrit sur les figures 2 et 4. Il est cependant à noter que ce dispositif 103 peut très bien se situer dans une branche amovible ou tout autre emplacement de la lunette de visualisation 100, de préférence de manière hermétique. Le mode de fixation est, par exemple, identique à celui adopté pour la fixation des obturateurs 102 au moyen d'ergots 1012.According to a particular embodiment of the invention, the strip 101 comprises a fourth additional housing 1011 intended to accommodate the voltage control device 103, in the case where the latter is fixed on the strip as described in FIGS. 4. It should be noted, however, that this device 103 can very well be located in a removable branch or any other location of the viewing window 100, preferably hermetically. The method of attachment is, for example, identical to that adopted for fixing the shutters 102 by means of lugs 1012.
Selon un autre mode de réalisation de l'invention, les second et quatrième logements (1010 et 1011) peuvent être confondus de façon à former une rainure uniqueAccording to another embodiment of the invention, the second and fourth housings (1010 and 1011) can be combined to form a single groove
(non représentée) conformée suivant la forme du bandeau 101, de façon à accueillir une bande de connectique 106 plus amplement décrite en relation avec la figure 4. La figure 4 illustre schématiquement, selon un mode de réalisation particulier de l'invention, un agencement particulier des obturateurs 102 à base de cellules à cristaux liquides d'une lunette 100 de visualisation de type actif.(not shown) shaped according to the shape of the strip 101, so as to accommodate a band of connectors 106 more fully described in connection with Figure 4. Figure 4 schematically illustrates, according to a particular embodiment of the invention, an arrangement particular shutters 102 based on liquid crystal cells of an active type of viewing glasses 100.
Dans l'exemple considéré, étant donné que les obturateurs 102 sont de type actif, il est nécessaire de les commander électriquement au moyen du dispositif 103 de commande en tension et de les alimenter au moyen d'un dispositif d'alimentation (non représenté).In the example considered, since the shutters 102 are of the active type, it is necessary to control them electrically by means of the voltage control device 103 and to supply them by means of a supply device (not shown). .
A cet effet, une bande connectique 106 flexible comprenant des pistes électriques d'alimentation et de signalisation est prévue pour l'alimentation et la commande de l'obturation des obturateurs 102. Cette bande connectique 106 est collée sur le côté supérieur des obturateurs 102.For this purpose, a flexible connector strip 106 comprising electrical supply and signaling tracks is provided for the supply and the shutter shutter control 102. This connector strip 106 is bonded to the upper side of the shutters 102.
Elle est connectée d'une part au dispositif d'alimentation et d'autre part au dispositif 103 de commande en tension.It is connected on the one hand to the power supply device and on the other hand to the voltage control device 103.
Dans l'exemple de réalisation de la figure 4, la bande connectique 106 sert de support non seulement aux obturateurs 102, mais également à un photo-détecteur 104, au dispositif au dispositif d'alimentation (non représenté) et au dispositif de 103 commande en tension. Dans cet exemple, le dispositif de détection 104 est placée directement sur la bande connectique 106, et non pas au sein du bandeau 101 comme suggéré sur la figure 2.In the embodiment of FIG. 4, the connector strip 106 serves not only to support the shutters 102, but also to a photodetector 104, to the device to the supply device (not shown) and to the control device. in tension. In this example, the detection device 104 is placed directly on the connector strip 106, and not within the strip 101 as suggested in FIG. 2.
L'ensemble formé par les deux obturateurs 102 et le dispositif 103 de commande en tension fixés sur la bande connectique 106 est astucieusement inséré dans un logement continu 1010 (tel que décrit précédemment en relation avec la figure 3) prévus dans le bandeau 101, cet ensemble étant rendu solidaire du bandeau au moyen des ergotsThe assembly formed by the two shutters 102 and the voltage control device 103 fixed on the connector strip 106 is cleverly inserted into a continuous housing 1010 (as previously described in connection with FIG. 3) provided in the strip 101, this together being secured to the headband by means of the lugs
1012 tel que décrit précédemment.1012 as previously described.
Une fois le bandeau 101 emboîté sur la coque de protection 200 (l'emboitement est plus amplement décrit sur la figure 5), le bandeau 101 portant les obturateurs 102 et la bande connectique 106 se trouvent alors logés dans les premiers logements 201 de la coque de protection 200 (figure 5), sans que les obturateurs entrent en contact avec les parois de la coque. Ainsi, selon le premier mode de réalisation, les obturateurs 102 sont suspendus verticalement au bandeau 101, comme illustré sur la figure 2 II en va de même pour le dispositif 103 de commande en tension qui se trouve logé dans son troisième 202 associé (figure 5).Once the strip 101 fitted on the protective shell 200 (the engagement is more fully described in FIG. 5), the strip 101 carrying the shutters 102 and the connector strip 106 are then housed in the first housing 201 of the hull. 200 (Figure 5), without the shutters come into contact with the walls of the hull. Thus, according to the first embodiment, the shutters 102 are suspended vertically from the strip 101, as illustrated in FIG. 2. The same goes for the voltage control device 103 which is housed in its associated third 202 (FIG. ).
La figure 5 illustre schématiquement la structure de la coque 200 de protection. Ainsi, la coque 200 de protection comprend : au moins un premier logement 201 destiné à accueillir ledit au moins un dispositif de visualisation 102, chaque premier logement 201 présentant une ouverture 201a de la forme dudit dispositif de visualisation 102; au moins un troisième logement 202 destiné à accueillir le dispositif 103 de commande en tension (dans le cas d'un dispositif 102 de visualisation de type actif), chaque troisième logement 202 présentant également une ouverture 202a de la forme dudit dispositif 103 de commande en tension; des moyens de solidarisation 203 permettant de solidariser ladite coque de protection 200 et ladite monture 101 dans une configuration où au moins une partie de ladite monture 101 vient obturer l'ouverture de chaque premier logement 201 et de chaque troisième logement 202 de ladite coque de protection 200 ; des moyens d'étanchéité 204, permettant de rendre étanche l'obturation de chaque premier logement 201 et de chaque troisième logement 202 de ladite coque de protection 200 ; deux dispositifs de fixation 205 situés de part et d'autre de la coque de protection 200, chacun de ces deux dispositifs de fixation 205 permettant la fixation d'une branche 300 amovible universelle.Figure 5 schematically illustrates the structure of the protective shell 200. Thus, the protective shell 200 comprises: at least a first housing 201 intended to receive said at least one display device 102, each first housing 201 having an opening 201a of the shape of said display device 102; at least a third housing 202 for receiving the voltage control device 103 (in the case of an active type display device 102), each third housing 202 also having an opening 202a of the shape of said control device 103 voltage; securing means 203 for securing said protective shell 200 and said frame 101 in a configuration where at least a portion of said frame 101 closes the opening of each first housing 201 and each third housing 202 of said protective shell 200; sealing means 204 for sealing the closure of each first housing 201 and each third housing 202 of said protective shell 200; two fasteners 205 located on either side of the protective shell 200, each of these two fasteners 205 for fixing a branch 300 universal removable.
Ainsi, une fois les deux dispositifs de visualisation 102 sélectionnés suivant le type d'application désirée et positionnés sur la monture (ou bandeau) 101, ces derniers sont introduits dans chaque premier logement 201 correspondant de la coque de protection lors de l'emboîtement de la monture 101 sur ladite coque 200 de protection.Thus, once the two display devices 102 selected according to the desired type of application and positioned on the frame (or strip) 101, they are introduced into each corresponding first housing 201 of the protective shell during the nesting of the mount 101 on said shell 200 protection.
La coque 200 de protection de la figure 5 se compose d'une première paroi 2001 et d'une seconde paroi 2002 qui, une fois assemblées entre-elles, forment la dite coque 200 de protection.The protective shell 200 of Figure 5 consists of a first wall 2001 and a second wall 2002 which, once assembled together, form the said shell 200 protection.
Une fois assemblée, la coque 200 de protection présente alors une zone creuse 2003 dont les parois sont distantes d'au moins 0,8 mm.Once assembled, the protective shell 200 then has a hollow zone 2003 whose walls are at least 0.8 mm apart.
Astucieusement, une fois assemblée, la coque 200 de protection présente également une zone supérieure 2004 dans laquelle sont dessinées les ouvertures des premier et troisième logements (201, 202) adaptés à coopérer respectivement avec les obturateurs 102 et le dispositif 103 d'alimentation en tension. Cette zone 2004 présente également les moyens 203 de solidarisation permettant l'emboîtement de la monture 101 sur ladite coque 200 de protection.Cleverly, once assembled, the protective shell 200 also has an upper zone 2004 in which are drawn the openings of the first and third housings (201, 202) adapted to cooperate respectively with the shutters 102 and the voltage supply device 103 . This zone 2004 also has the securing means 203 for fitting the frame 101 to said protective shell 200.
Une fois la coque 200 de protection solidaire de la monture 101 grâce aux moyens de solidarisation 203, les deux dispositifs de visualisation 200 ainsi que le dispositif 103 de commande en tension se trouvent donc englobés par ladite coque de protection 200.Once the protective shell 200 secured to the frame 101 through the securing means 203, the two display devices 200 and the voltage control device 103 are thus encompassed by said protective shell 200.
Lesdits moyens d'étanchéité 204 assurent quant à eux une obturation étanche de chaque ouverture de chaque premier logement 201 et de chaque troisième logement 202 de ladite coque de protection 200.Said sealing means 204 ensure that they seal each opening of each first housing 201 and each third housing 202 of said protective shell 200.
Une fois positionnée, la coque de protection 200 présente plusieurs avantages. Elle permet notamment de protéger chaque dispositif de visualisation 102 contre une agression extérieure comme par exemple un contact avec les doigts de l'utilisateur. En effet, un simple contact sur le substrat de type film plastique est susceptible d'endommager l'alignement des cristaux liquides.Once positioned, the protective shell 200 has several advantages. In particular, it makes it possible to protect each display device 102 against external aggression, for example contact with the user's fingers. In indeed, a simple contact on the plastic film substrate is likely to damage the alignment of the liquid crystal.
Cette coque 200 de protection permet également de minimiser le risque de déformations des cellules induites par des forces de flexion, de torsion et/ou de pression appliquées à la lunette de visualisation, lors de sa manipulation par un utilisateur, en vue d'éviter tout endommagement des cellules. L'influence de ces forces est plus amplement décrite par la suite.This protective shell 200 also makes it possible to minimize the risk of deformations of the cells induced by bending, twisting and / or pressure forces applied to the viewing window, when it is being handled by a user, in order to avoid any cell damage. The influence of these forces is more fully described later.
Du fait que la coque de protection 200 permet de limiter les efforts de torsion induits par la monture sur ledit au moins dispositif de visualisation lors de la manipulation de la lunette de visualisation par l'utilisateur, il est alors possible d'envisager l'utilisation de substrats de type « verre mince » très sensibles à la torsion.Since the protective shell 200 makes it possible to limit the torsional forces induced by the frame on the at least one display device during manipulation of the viewing window by the user, it is then possible to envisage the use "thin glass" type substrates which are very sensitive to torsion.
Selon un premier mode de réalisation de l'invention, la coque 200 de protection comprend un corps (ou zone) creux 2003 formé par au les première et seconde paroisAccording to a first embodiment of the invention, the protective shell 200 comprises a hollow body (or zone) 2003 formed by the first and second walls
(2001, 2002) sensiblement parallèles et distantes d'au moins 0,80 mm. Ainsi, chaque premier logement 201 et le second logement présente chacun une largeur d'au moins(2001, 2002) substantially parallel and at least 0.80 mm apart. Thus, each first housing 201 and the second housing each have a width of at least
0.80mm.0.80mm.
Dans cet exemple de la figure 5, la coque 200 de protection est constituée par un bloc monolithique moulé en matière thermoplastique ou thermodurcissable transparente aux propriétés optiques adéquates pour permettre une visualisation à travers la coque 200 de protection.In this example of FIG. 5, the protective shell 200 consists of a monolithic block molded in transparent thermoplastic or thermosetting material with adequate optical properties to allow visualization through the protective shell 200.
Ainsi, une fois les obturateurs 102 insérés dans leur premier logement 201 lors de l'emboîtement du bandeau 101 sur ladite coque de protection, la présente invention permet avantageusement d'éviter que les obturateurs 102 (ou dispositif de vision alternée 102) se trouvent au contact de la coque de protection. Lors des mouvements de flexion, de torsion ou de pression induits par une manipulation, une telle coque 200 de protection permet également d'éviter que la coque ne vienne au contact des obturateurs 102.Thus, once the shutters 102 are inserted into their first housing 201 during the engagement of the strip 101 on said protective shell, the present invention advantageously makes it possible to prevent the shutters 102 (or alternating vision device 102) from being at contact of the protective shell. During bending, twisting or pressure movements induced by manipulation, such a protective shell 200 also makes it possible to prevent the shell from coming into contact with the shutters 102.
Cette coque 200 de protection de type monobloc présente en outre l'avantage d'être légère et simple à fabriquer selon des techniques bien connues de moulage à bas coût.This one-piece type protective shell 200 also has the advantage of being lightweight and simple to manufacture according to well-known low-cost molding techniques.
Enfin, les opérations de lavage de la lunette 100 de visualisation selon l'invention s'en trouvent grandement facilitées. Préférentiellement, lesdits moyens d'étanchéité 204 comprennent au moins un joint d'étanchéité réalisé dans un matériau appartenant au groupe comprenant : o silicone ; o élastomère ; o caoutchouc.Finally, the washing operations of the viewing bezel 100 according to the invention are greatly facilitated. Preferably, said sealing means 204 comprise at least one seal made of a material belonging to the group comprising: o silicone; o elastomer; o rubber.
En effet, de tels joints s'écrasent facilement par effet de compression et permettent de réaliser une étanchéité optimale entre la monture et la coque lors de la solidarisation de la coque 200 de protection et de la monture 101.Indeed, such joints are easily crushed by the compression effect and make it possible to achieve optimum sealing between the frame and the shell when the hull 200 and the frame 101 are secured.
Selon un autre mode de réalisation de l'invention, lesdits moyens d'étanchéité 204 se situent sur ladite monture 101.According to another embodiment of the invention, said sealing means 204 are located on said frame 101.
Egalement, afin de limiter le poids de la lunette 100 de visualisation, la coque 200 de protection est réalisée en plastique résistant de type polycarbonate. Bien évidemment, le plastique choisi est soit complètement transparent soit transparent uniquement en regard de chaque axe de vision de l'utilisateur. Le choix du plastique permet également de concevoir une coque légère pour un coût de fabrication moindre du fait du faible nombre de pièces à assembler.Also, in order to limit the weight of the viewing bezel 100, the protective shell 200 is made of resistant plastic of the polycarbonate type. Of course, the chosen plastic is either completely transparent or transparent only opposite each axis of vision of the user. The choice of plastic also allows to design a lightweight shell for a lower manufacturing cost due to the small number of parts to assemble.
Selon le mode de réalisation de l'invention, pour réaliser une coque 200 de protection interchangeable, lesdits moyens de solidarisation 203 sont de type amovible. Ainsi, il est possible de désolidariser la coque 200 de protection de la monture 101 afin, par exemple, de changer la coque de protection si cette dernière est endommagée (rayures,According to the embodiment of the invention, to achieve an interchangeable protective shell 200, said securing means 203 are removable type. Thus, it is possible to separate the protective shell 200 from the frame 101 in order, for example, to change the protective shell if the latter is damaged (scratches,
...) ou bien de modifier la forme extérieure de la lunette de visualisation en choisissant une forme de la coque de protection 200 adaptée à un événement particulier....) or to change the outer shape of the viewing window by choosing a shape of the protective shell 200 adapted to a particular event.
Bien évidemment, selon un autre mode de réalisation de l'invention, les moyens de solidarisation 203 peuvent être situés sur la monture également. La coque 200 de protection comprend également deux dispositifs de fixationOf course, according to another embodiment of the invention, the securing means 203 may be located on the frame also. The protective shell 200 also includes two fixing devices
205 permettant la fixation d'une branche 300 amovible universelle. Ces deux branches sont notamment conçues de manière à être suffisamment flexibles et rigides à la fois pour s'adapter à toutes les morphologies de crânes.205 allowing the attachment of a branch 300 removable universal. These two branches are particularly designed to be sufficiently flexible and rigid both to adapt to all morphologies of skulls.
Par exemple, ces deux dispositifs de fixation 205 sont des guides faisant partie intégrante de la coque de protection et adaptés à coopérer avec une ouverture 301 ménagée sur la branche 300 correspondante. Bien évidemment, tout autre type de fixation amovible est envisageable pour la fixation des deux branches 300 amovibles sur la coque 200 de protection .For example, these two fastening devices 205 are integral guides of the protective shell and adapted to cooperate with an opening 301 formed on the corresponding branch 300. Of course, any other type of removable attachment is possible for fixing the two branches 300 removable on the shell 200 protection.
Egalement, il est envisageable de placer ces deux dispositifs de fixation directement sur la monture 101. En outre, ces deux branches 300 amovibles facilitent le rangement de la lunetteAlso, it is conceivable to place these two fasteners directly on the frame 101. In addition, these two removable branches 300 facilitate the storage of the bezel
100 de visualisation, chaque branche étant désolidarisée de la monture 101 ou de la coque 200 de protection après utilisation. Une telle lunette 100 de visualisation est ainsi peu encombrante. La présente invention propose ainsi une lunette 100 de visualisation universelle (pouvant accueillir tous les types de dispositifs de visualisation, actifs ou passifs, classiquement utilisés pour le cinéma numérique 3D), robuste et d'un coût de fabrication peu élevé.100 viewing, each branch being disengaged from the frame 101 or the shell 200 protection after use. Such a viewing bezel 100 is thus compact. The present invention thus provides a universal viewing bezel 100 (which can accommodate all types of viewing devices, active or passive, conventionally used for 3D digital cinema), robust and low manufacturing cost.
Egalement, la lunette 100 de visualisation selon l'invention est facilement lavable et peu encombrante.Also, the viewing bezel 100 according to the invention is easily washable and compact.
Astucieusement, la coque 200 de protection permet d'adapter l'aspect extérieur de la lunette de visualisation en fonction de l'événement considéré.Cleverly, the protective shell 200 makes it possible to adapt the external appearance of the viewing window according to the event under consideration.
La figure 6 illustre schématiquement un second mode de réalisation de la coqueFIG. 6 schematically illustrates a second embodiment of the hull
200 de protection. Selon cet exemple, la coque 200 de protection présente un couple d'ouvertures 207 dans chacune des première et seconde parois (2001, 2002) de la coque200 of protection. According to this example, the protective shell 200 has a pair of openings 207 in each of the first and second walls (2001, 2002) of the hull
200 de protection, de manière à coïncider avec chaque obturateur 102 une fois le bandeau 101 emboîté sur la coque 200 de protection grâce aux moyens de solidarisation 203.200 of protection, so as to coincide with each shutter 102 once the strip 101 fitted on the shell 200 of protection by the securing means 203.
Pour chaque œil, l'obturateur 102 et les deux ouvertures 207 sont alignées selon un axe optique dans le champ de vision de chaque œil de l'utilisateur.For each eye, the shutter 102 and the two apertures 207 are aligned along an optical axis in the field of view of each eye of the user.
Astucieusement, dans chaque ouverture 207 des première et seconde parois (2001, 2002) est inséré un élément optique de protection (non représenté) constitué, par exemple d'un verre, de manière à protéger l'obturateur 102 de toute agression ou force de pression extérieure. Afin de réduire le poids et le coût de la lunette de visualisation selon l'invention, le verre de protection sera remplacé par un élément de protection en matière plastique de qualité optique (par exemple, en polycarbonate ou en PMMA).Cleverly, in each opening 207 of the first and second walls (2001, 2002) is inserted a protective optical element (not shown) consisting, for example of a glass, so as to protect the shutter 102 from any aggression or force of external pressure. In order to reduce the weight and the cost of the viewing window according to the invention, the protective glass will be replaced by an optical quality plastic protection element (for example, made of polycarbonate or PMMA).
Cette variante de réalisation de la coque 200 de protection de la figure 6 est avantageuse dans le cas où le matériau utilisé pour fabriquer la coque est opaque ou que celui-ci ne présente pas des propriétés optiques satisfaisantes pour une visualisation directe à travers la coque.This alternative embodiment of the protective shell 200 of Figure 6 is advantageous in the case where the material used to make the shell is opaque or that it does not have satisfactory optical properties for direct viewing through the shell.
Selon l'invention, les deux modes de réalisation de la coque 200 de protection des figures 5 et 6 présentent avantageusement un espace libre (ou lame d'air) entre chaque face (102a, 102b) d'un obturateur 102 et une paroi interne (2001, 2002) correspondante de la coque 200 de protection.According to the invention, the two embodiments of the protective shell 200 of FIGS. 5 and 6 advantageously have a free space (or air gap) between each face (102a, 102b) of a shutter 102 and an inner wall (2001, 2002) corresponding hull 200 protection.
Lors d'un mouvement de torsion du bandeau 101, celui-ci se déforme, de telle sorte qu'un premier obturateur 102 se déplace vers l'avant, tandis qu'un deuxième obturateur 102 se déplace vers l'arrière par rapport aux yeux de l'utilisateur. Lors du déplacement relatif de chaque obturateur 102 sous l'effet d'une torsion, chaque tranche d'air située de part et d'autre d'un obturateur joue alors le rôle d'un tampon entre l'obturateur 102 et la paroi interne (2001, 2002) de la coque, de telle sorte chaque obturateur 102 n'entre pas en contact direct avec la coque 200 de protection.During a torsion movement of the band 101, the latter is deformed, so that a first shutter 102 moves forward, while a second shutter 102 moves backwards relative to the eyes of the user. During the relative displacement of each shutter 102 under the effect of a twist, each slice of air located on either side of a shutter then acts as a buffer between the shutter 102 and the inner wall (2001, 2002) of the shell, so that each shutter 102 does not come into direct contact with the shell 200 protection.
De manière similaire, pour un mouvement de flexion des lunettes, les deux obturateurs 102 subissent un déplacement relatif sans entrer au contact avec la coque de protection 200.Similarly, for a bending movement of the spectacles, the two shutters 102 undergo relative movement without coming into contact with the protective shell 200.
Lors de l'application d'une pression sur la coque de protection 200 au niveau de l'emplacement des obturateurs 102, la coque 200 de protection se déforme, sans que celle- ci entre en contact avec les obturateurs 102. La figure 7 illustre un troisième mode de réalisation particulier de l'invention dans lequel la coque de protection 400 comprend une première partie 400a (réceptacle) et une deuxième partie 400b (couvercle) destinée à recouvrir la première partie 400a pour ainsi former ladite coque 400 une fois les première et seconde parties assemblées entre- elles. La première partie 400a comprend deux premier logement 401 destiné à recevoir chacun un obturateur 102, de manière à les protéger.When applying a pressure on the protective shell 200 at the location of the shutters 102, the protective shell 200 deforms, without the latter coming into contact with the shutters 102. FIG. 7 illustrates a third particular embodiment of the invention in which the protective shell 400 comprises a first part 400a (receptacle) and a second part 400b (cover) intended to cover the first part 400a so as to form said shell 400 once the first and second parts assembled together. The first part 400a comprises two first housing 401 intended to each receive a shutter 102, so as to protect them.
Les première 400a et deuxième 400b parties de la coque de protection 400 comprennent chacune respectivement au niveau de l'emplacement de chaque obturateur 102 des ouvertures (401a, 401b) et (402a, 402b) où sont disposés respectivement des éléments optiques (408a, 408b) de protection. Ces éléments optiques peuvent être constitués en verre ou en matière plastique de qualité optique (polymères de type polycarbonate ou PMMA). De manière avantageuse, ces éléments optiques de protection peuvent être traités par un traitement anti-reflets ou tout autre type de traitement. Selon une particularité de l'invention, les obturateurs 102 sont disposés entre les première 400a et deuxième 400b parties de la coque 400, dans les premiers logements 401 prévus, de telle sorte que les obturateurs 102 ne soient pas solidaires de la coque 400 (dans la mesure où il n'existe pas de contrainte mécanique entre ces deux éléments). Ceci est assuré par le fait qu'une tranche d'air d'épaisseur au moins égale à 0,80 mm est prévue entre les parois internes de la coque 400, de part et d'autre de l'obturateur 102 tel que déjà discuté en relation avec la figure 5. Dans cet exemple de réalisation, les parois internes de la coque sont constituées en majorité par les éléments optiques (408a, 408b) de protection.The first 400a and second 400b portions of the protective shell 400 each respectively comprise, at the location of each shutter 102, openings (401a, 401b) and (402a, 402b) in which optical elements (408a, 408b) are respectively disposed. ) protection. These optical elements may be made of glass or plastic of optical quality (polymers of polycarbonate or PMMA type). Advantageously, these optical protection elements can be treated by an anti-glare treatment or any other type of treatment. According to a feature of the invention, the shutters 102 are disposed between the first 400a and second 400b parts of the shell 400, in the first housing 401 provided, so that the shutters 102 are not integral with the shell 400 (in the extent that there is no mechanical constraint between these two elements). This is ensured by the fact that an air slice with a thickness of at least 0.80 mm is provided between the inner walls of the shell 400, on either side of the shutter 102 as already discussed. in relation to FIG. 5. In this exemplary embodiment, the inner walls of the shell consist mainly of the optical elements (408a, 408b) for protection.
Comme décrit précédemment dans le cadre du premier mode de réalisation, une bande connectique flexible 106 est également utilisée pour distribuer la tension de commande délivrée par le dispositif 103 de commande en tension et le signal d'alimentation délivré par un dispositif d'alimentation (non représenté). De même, la bande connectique 106 est utilisée en outre en tant que support du dispositif d'alimentation, du dispositif 103 de commande en tension et du dispositif de détection 104.As described previously in the context of the first embodiment, a flexible connector strip 106 is also used to distribute the control voltage delivered by the voltage control device 103 and the power supply signal delivered by a power supply device (no represent). Similarly, the connector strip 106 is furthermore used as a support for the supply device, the voltage control device 103 and the detection device 104.
En outre, le dispositif 103 de commande est également protégé des agressions extérieures au moyen d'un troisième logement 402 permettant d'accueillir ledit dispositifIn addition, the control device 103 is also protected from external aggressions by means of a third housing 402 making it possible to receive said device
103 une fois la coque assemblée.103 once the hull is assembled.
Chaque obturateur 102 est fixé au niveau d'un côté supérieur à la bande de connectique 106 qui elle-même repose (non représenté sur la figure 7) contre la première partie 400a (réceptacle) de la coque de protection 400. Ainsi la bande de connectique 106 sert de support aux obturateurs 102 qui sont maintenus tout en bénéficiant d'un degré de liberté leur permettant de bouger librement dans l'espace prévu à l'intérieur de la coque de protection. En effet, l'espace prévu entre les faces internes des deuxième 400b (couvercle) première 400a parties de la coque fait en sorte que chaque obturateur ne subisse pas de contrainte mécanique lors de la déformation de la coque (dans une certaine mesure de déformation de celle-ci bien entendu). Avantageusement, afin de minimiser encore le risque d'endommagement des obturateurs 102, il est prévu de disposer des éléments de matériau mou ou élastique 409 (figure 8) entre au moins une face (102a ou 102b) de l'obturateur 102 et au moins une paroi interne de la coque (400a, 400b). Ces éléments 409 sont par exemple constitués en mousse et collés sur une partie de la bande connectique 106 destinée à être en contact avec un verre de protection ou la première partie 400a de la coque 400Each shutter 102 is fixed at an upper side to the connector strip 106 which itself rests (not shown in Figure 7) against the first portion 400a (receptacle) of the protective shell 400. Thus the tape of connector 106 serves to support the shutters 102 which are maintained while enjoying a degree of freedom allowing them to move freely in the space provided inside the protective shell. Indeed, the space provided between the inner faces of the second 400b (lid) first 400a parts of the shell ensures that each shutter does not undergo mechanical stress during the deformation of the shell (to some extent deformation of this one of course). Advantageously, in order to further minimize the risk of damaging the shutters 102, provision is made for the elements of soft or elastic material 409 (FIG. 8) between at least one face (102a or 102b) of the shutter 102 and at least an inner wall of the shell (400a, 400b). These elements 409 are for example made of foam and glued on a portion of the connector strip 106 intended to be in contact with a protective glass or the first portion 400a of the shell 400
Le concept général inventif de la solution présentée à travers les trois modes de réalisation de la coque 200 de protection des figures 5 et 7 consiste à désolidariser chaque dispositif de vision alternée 102 de la coque 200 de protection. Selon une approche complémentaire, il est proposé de désolidariser en outre les obturateurs entre eux, en désolidarisant la partie droite (correspondant à l'œil droit de l'utilisateur) et la partie gauche (correspondant à l'œil gauche de l'utilisateur) de la coque de protection.The general inventive concept of the solution presented through the three embodiments of the protective shell 200 of FIGS. 5 and 7 consists in separating each alternate vision device 102 from the protective shell 200. According to a complementary approach, it is proposed to further separate the shutters between them, by disconnecting the right part (corresponding to the right eye of the user) and the left part (corresponding to the left eye of the user) of the protective shell.
Pour cela, une première solution consiste à fournir une coque de protection comportant une partie droite 502 et une partie gauche 501 reliées entre elles via une liaison mécanique élastique 500 (figure 9). Cette liaison mécanique élastique peut être assurée par une pièce centrale en matière plastique. Le matériau choisi doit être cependant assez rigide pour permettre à la lunette de ne pas fléchir lorsqu'elle repose sur le nez.For this, a first solution is to provide a protective shell having a straight portion 502 and a left portion 501 interconnected via an elastic mechanical connection 500 (Figure 9). This elastic mechanical connection can be provided by a central piece of plastic material. The chosen material must however be rigid enough to allow the telescope not to bend when it rests on the nose.
Ainsi sous l'effet d'un mouvement de flexion et/ou de torsion l'obturateur compris dans la partie gauche de la coque peut se déplacer indépendamment de l'obturateur compris dans la partie droite de la coque, sans que les parties gauche et droite de la coque subissent de déformation particulière, la déformation étant « absorbée » par la pièce.Thus under the effect of a bending and / or twisting movement the shutter included in the left part of the shell can move independently of the shutter included in the right part of the shell, without the left and right parts right of the shell undergo particular deformation, the deformation being "absorbed" by the piece.
Une deuxième solution consiste à conformer la coque de protection de telle sorte que la zone de jonction centrale en forme de V et destinée à reposer sur le nez de l'utilisateur présente un degré de liberté suffisant pour désolidariser au maximum la partie droite et la partie gauche de la coque de protection. Un tel degré de liberté peut être obtenu en rendant cette zone de jonction suffisamment souple (par exemple en prévoyant une épaisseur suffisamment fine pour cette zone de jonction).A second solution is to conform the protective shell so that the center V-shaped junction area and intended to rest on the user's nose has a degree of freedom sufficient to separate as much as possible the right part and the part left of the protective shell. Such a degree of freedom can be obtained by making this junction zone sufficiently flexible (for example by providing a sufficiently thin thickness for this junction zone).
Dans ce cas, une pièce en plastique déformable anallergique en forme de V peut être fournie pour maintenir de manière suffisamment souple la partie gauche et la partie droite de la lunette. Par ailleurs, cette pièce peut également servir à adapter la lunette à différentes tailles et formes de nez de l'utilisateur, permettant ainsi de fournir une lunette standard pouvant s'adapter aux enfants comme aux adultes.In this case, a non-allergenic V-shaped plastic deformable piece can be provided to sufficiently flexibly hold the left and right portions of the bezel. Moreover, this piece can also be used to adapt the telescope to different sizes and shapes of the user's nose, thus providing a standard bezel that can be adapted to both children and adults.
Ainsi, la présente invention propose une solution consistant à réaliser une coque de protection pour dispositif de visualisation permettant de loger les cellules tout en les « désolidarisant » de la coque de protection de façon à limiter les efforts induits sur lesdites cellules lors de leur manipulation.Thus, the present invention proposes a solution of making a protective shell for a display device for housing the cells while "separating" the protective shell so as to limit the forces induced on said cells during handling.
Le concept général inventif consiste donc à fournir une coque de protection telle qu'elle ne soit pas solidaire des cellules (aucune liaison solidaire).The general inventive concept therefore consists in providing a protective shell such that it is not integral with the cells (no integral connection).
Bien entendu, la présente invention s'applique non seulement à des cellules actives à base de cristaux liquide mais également à des filtres ou polariseurs passifs. Of course, the present invention applies not only to active cells based on liquid crystals but also to passive filters or polarizers.

Claims

REVENDICATIONS
1. Lunette (100) de visualisation en trois dimensions de contenus vidéo numériques comprenant au moins un dispositif de vision alternée (102), caractérisée en ce qu'elle comprend une coque de protection (200 ; 400) transparente au moins au niveau dudit dispositif de vision alternée, ladite coque comprenant au moins un premier logement (201 ; 401) destiné à accueillir ledit dispositif de vision alternée (102), sans contact entre ladite coque et ledit dispositif de vision alternée, de sorte que ledit dispositif de vision alternée n'est pas solidaire de la coque de protection. 1. Bezel (100) for three-dimensional visualization of digital video contents comprising at least one alternating vision device (102), characterized in that it comprises a transparent protective shell (200; 400) at least at said device alternate vision, said shell comprising at least a first housing (201; 401) for accommodating said alternate vision device (102), without contact between said shell and said alternate vision device, so that said alternate vision device is not attached to the protective shell.
2. Lunette selon la revendication 1, caractérisée en ce qu'elle comprend un espace libre prévu entre au moins une face (102a, 102b) dudit au moins un dispositif de vision alternée (102) et une paroi interne (2001, 2002 ; 408a, 408b) de la coque de protection (200 ; 400).2. Bezel according to claim 1, characterized in that it comprises a free space provided between at least one face (102a, 102b) of said at least one alternate vision device (102) and an inner wall (2001, 2002; 408a). 408b) of the protective shell (200; 400).
3. Lunette selon l'une quelconque des revendications 1 et 2, caractérisée en ce qu'elle comprend un bandeau (101) comportant au moins un second logement (1010) destiné à recevoir ledit au moins dispositif de vision alternée (102), et des moyens de fixation (1012) dudit au moins un dispositif de vision alternée (102) dans ledit au moins un second logement (1010).3. Bezel according to any one of claims 1 and 2, characterized in that it comprises a strip (101) having at least a second housing (1010) for receiving said at least alternate vision device (102), and means (1012) for attaching said at least one alternate vision device (102) to said at least one second housing (1010).
4. Lunette selon la revendication 3, caractérisée en ce qu'elle comprend des moyens de solidarisation (203) compris dans ladite coque de protection (200) et/ou dans ledit bandeau (101), permettant de solidariser la coque de protection (200) et le bandeau (101) dans une configuration où au moins une partie dudit bandeau (101) vient obturer chaque ouverture de chaque premier logement de ladite coque de protection (200).4. Bezel according to claim 3, characterized in that it comprises securing means (203) included in said protective shell (200) and / or in said strip (101), for securing the protective shell (200). ) and the strip (101) in a configuration where at least a portion of said strip (101) closes each opening of each first housing of said protective shell (200).
5. Lunette selon l'une quelconque des revendications 1 et 2, caractérisée en ce que la coque de protection (400) comprend une première partie (400a) et une deuxième partie (400b) destinée à recouvrir ladite première partie (400a), ladite première partie (400a) comprenant ledit au moins un premier logement (401).5. Bezel according to any one of claims 1 and 2, characterized in that the protective shell (400) comprises a first portion (400a) and a second portion (400b) for covering said first portion (400a), said first portion (400a) comprising said at least one first housing (401).
6. Lunette selon l'une quelconque des revendications 1 à 5, caractérisée en ce que ledit au moins un dispositif de vision alternée (102) appartient au groupe comprenant : - des dispositifs de vision alternée de type actif ;6. Bezel according to any one of claims 1 to 5, characterized in that said at least one alternate vision device (102) belongs to the group comprising: - alternating vision devices of the active type;
- des dispositifs de vision alternée de type passif. - passive vision devices of the passive type.
7. Lunette selon la revendication 6, ledit dispositif de vision alternée (102) étant de type actif et commandé en tension par un dispositif (103) de commande en tension, ladite lunette (100) de visualisation étant caractérisée en ce que ladite coque de protection (200 ; 400) comprend au moins un troisième second logement (202 ; 402) destiné à accueillir ledit dispositif (103) de commande en tension.7. Bezel according to claim 6, said alternating vision device (102) being of active type and voltage controlled by a device (103) of voltage control, said viewing bezel (100) being characterized in that said shell of protection device (200; 400) comprises at least a third second housing (202; 402) for receiving said voltage control device (103).
8. Lunette selon l'une quelconque des revendications 1 à 7, caractérisée en ce que ledit au moins un dispositif de vision alternée (102) comprend au moins un substrat flexible appartenant au groupe des films plastiques souple de type polyester.8. Bezel according to any one of claims 1 to 7, characterized in that said at least one alternating vision device (102) comprises at least one flexible substrate belonging to the group of flexible plastic films of polyester type.
9. Lunette selon l'une quelconque des revendications 1 à 8, caractérisée en ce que ladite coque de protection (200 ; 400) est en plastique résistant de type résine9. Bezel according to any one of claims 1 to 8, characterized in that said protective shell (200; 400) is resistant plastic type resin
(thermodurcissable, ou thermoplastique).(thermosetting, or thermoplastic).
10. Coque de protection (200 ; 400) destinée à une lunette de visualisation (100) selon l'une quelconque des revendications 1 à 9, ladite coque étant caractérisée en ce qu'elle comprend au moins un premier logement (201 ; 401) destiné à accueillir ledit au moins un dispositif de vision alternée (102), ladite coque de protection étant transparente au moins au niveau dudit au moins un dispositif de vision alternée et en ce que ledit au moins un dispositif de vision alternée (102) n'est pas solidaire de la coque de protection.10. Protective shell (200; 400) for a viewing window (100) according to any one of claims 1 to 9, said shell being characterized in that it comprises at least a first housing (201; 401) for accommodating said at least one alternate vision device (102), said protective shell being transparent at least at said at least one alternate vision device and said at least one alternate vision device (102) is is not attached to the protective shell.
11. Coque selon la revendication 10, caractérisée en ce qu'elle comprend un espace libre prévu entre au moins une face (102a, 102b) dudit au moins un dispositif de vision alternée (102) et une paroi interne (2001, 2002 ; 408a, 408b) de la coque de protectionShell according to claim 10, characterized in that it comprises a free space provided between at least one face (102a, 102b) of said at least one alternate vision device (102) and an inner wall (2001, 2002; 408a). , 408b) of the protective shell
(200 ; 400).(200; 400).
12. Coque selon l'une quelconque des revendications 10 et 11, caractérisée en ce qu'elle est formée par un bloc monolithique moulé en matière plastique.12. Shell according to any one of claims 10 and 11, characterized in that it is formed by a monolithic block molded plastic material.
13. Coque selon l'une quelconque des revendications 10 et 11, caractérisée en ce qu'elle comprend une première partie (400a) et une deuxième partie (400b) destinée à recouvrir ladite première partie (400a), ladite première partie (400a) comprenant ledit au moins un premier logement (401). 13. Hull according to any one of claims 10 and 11, characterized in that it comprises a first portion (400a) and a second portion (400b) for covering said first portion (400a), said first portion (400a) comprising said at least one first housing (401).
PCT/EP2009/053975 2008-04-02 2009-04-02 Eyeglass for three-dimensional viewing of digital video contents, and corresponding protective shell WO2009121942A1 (en)

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FR0852159A FR2929719B1 (en) 2008-04-02 2008-04-02 THREE-DIMENSIONAL VISUALIZATION GLASS OF DIGITAL VIDEO CONTENT, CORRESPONDING ASSEMBLY PROTECTION SHELL.
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US9824330B2 (en) 2010-03-15 2017-11-21 Dolby Laboratories Licensing Corporation 3D glasses and related systems
WO2012138787A2 (en) * 2011-04-04 2012-10-11 Dolby Laboratories Licensing Corporation 3d glasses with rfid and methods and devices for improving management and distribution of sold commodities
WO2012138787A3 (en) * 2011-04-04 2012-12-27 Dolby Laboratories Licensing Corporation 3d glasses with rfid and methods and devices for improving management and distribution of sold commodities
US9600827B2 (en) 2011-04-04 2017-03-21 Dolby Laboratories Licensing Corporation 3D glasses with RFID and methods and devices for improving management and distribution of sold commodities

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FR2929719A1 (en) 2009-10-09

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