WO1988004439A1 - Improvements in or relating to spectacles - Google Patents

Improvements in or relating to spectacles Download PDF

Info

Publication number
WO1988004439A1
WO1988004439A1 PCT/GB1987/000901 GB8700901W WO8804439A1 WO 1988004439 A1 WO1988004439 A1 WO 1988004439A1 GB 8700901 W GB8700901 W GB 8700901W WO 8804439 A1 WO8804439 A1 WO 8804439A1
Authority
WO
WIPO (PCT)
Prior art keywords
spectacles
lenses
partially
hologram
sputtering
Prior art date
Application number
PCT/GB1987/000901
Other languages
French (fr)
Inventor
William Nevil Heaton Johnson
Nicholas J. Phillips
Original Assignee
Scientific Applied Research (Sar) Plc
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
Priority claimed from GB868629609A external-priority patent/GB8629609D0/en
Priority claimed from GB878704220A external-priority patent/GB8704220D0/en
Priority claimed from GB878714402A external-priority patent/GB8714402D0/en
Application filed by Scientific Applied Research (Sar) Plc filed Critical Scientific Applied Research (Sar) Plc
Publication of WO1988004439A1 publication Critical patent/WO1988004439A1/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • 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
    • G02C11/02—Ornaments, e.g. exchangeable
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/021—Lenses; Lens systems ; Methods of designing lenses with pattern for identification or with cosmetic or therapeutic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/107—Interference colour filters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H2001/0055—Adaptation of holography to specific applications in advertising or decorative art
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2270/00—Substrate bearing the hologram
    • G03H2270/55—Substrate bearing the hologram being an optical element, e.g. spectacles

Definitions

  • THIS INVENTION relates to spectacles.
  • Spectacles are known, as so-called “sun glasses” which have lenses (normally plain lenses) provided with a partially reflective and partially light transmissive layer or coating, whereby the intensity of light passing to the wearer's eyes through said layer is attenuated without otherwise interfering with the wearer's vision, whereas, due to the relatively high level of light reflected outwardly from the partially reflective, partially transmissive layer, as compared with the inten ⁇ sity of light reflected from the wearer's skin and eyes through the partially reflective and partially trans ⁇ missive layer, the lenses present the appearance, to a person viewing the wearer, of totally reflective metallic surfaces.
  • spec ⁇ tacles having lenses (as herein defined) each provided with a partially reflective and partially light transmissive layer which incorporates a hologram, whereby a holographic image within the area of the lens may be viewed by a person looking at the wearer of the spectacles.
  • a spectacle frame provided with a light reflective coating by sputtering with metal.
  • lens as used herein is intended to com ⁇ prehend a transparent body without any converging or diverging power, as well as a body which acts as a con ⁇ verging or diverging lens.
  • spectacles as used herein is also intended to include, in addition to spec- tacles of conventional construction, Items such as "clip on” attachments intended as an ancillary to normal spec ⁇ tacles and which may be clipped over the frames of the latter in known manner to cover the normal lenses with additional "lenses".
  • the term is also intended to include variants where, for example, a single unitary transparent body extends across both eyes and thus serves as the "lenses".
  • a pair of "sun glasses” has lenses of transparent material hav ⁇ ing a layer or coating which is partially reflective and partially light transmissive, with the optical density of said layer or coating being varied locally in accordance with the patterning of a hologram in a manner known per s_e, so that a person viewing the lenses of the spectacles whilst worn by another person will be able to view, with ⁇ in the areas of the lenses, a corresponding holographic image.
  • the image concerned may be, for example, that of a large caricatured eye-ball winking, that of a flag such as the Union Jack, or advertising material, for example pertaining to a product in the promotion of which the spectacles in question may be sold or given away.
  • the said layer when provided, may comprise a plastics material film which has been sputtered with metal.
  • reflective metals which are silver or gold in appearance may be used. In practice, silver, gold or aluminium metals are likely to be used.
  • the lenses, with the hologram-incorporating, reflective/transmissive layer may be arranged to be interchangeable in the spectacle frame so that the wearer can present to onlookers selected hologram images from a plurality of available images and may change the lenses, and thus the images, from time to time, as desired.
  • the sputtering technique referred to above particularly in conjunction with the use of relief image holograms, as set out below, allows the production of sunglasses such that it will not be apparent to the person wearing the sunglasses that there is a hologram incorporated in or on the lenses, nor will there be any other impediment to clear vision.
  • the invention provides a medium of sub- stantial potential for advertising and the like, as it is likely that members of the public will be willing to pay at least as much for such spectacles incorporating holo- -I -
  • the spectacle lenses are of glass
  • the hologram is provided thereon in the form of a relief image hologram on one surface of the glass, formed by ion bombardment and acid etching of the glass, with the subsequent application of a part-transmissive, part-reflective coating on the re ⁇ sultant undulating surface.
  • the coating may be formed by sputtering with an appropriate metal, such as gold, silver or aluminium.
  • the spectacle lenses may, however, be made from plastics by injection moulding or by pressing, the holo ⁇ gram taking the form of a relief image hologram impressed upon the respective lens surface by nickel press master, the lenses thereafter having a part-transmissive, part- reflective coating applied thereto, for example by metallic sputtering as set out above.
  • a photo-polymer is used, to which the hologram pattern is applied photo ⁇ graphically, and which is subjected to "developing" pro- cedures, known per se, to form the relief image hologram thereon and which thereafter forms a basis for the pro ⁇ duction, in manner also known per se, such as by an electrolyte process, for the production of the nickel master.
  • the arrangement in any of the above embodiments, is such that the person wearing the spectacles does not perceive the holographic image, but has the same view as he would if he were wearing ordinary "sun-glasses". That is to say, the sunglasses, apart from the desired reduction in light intensity, present no impediment to the vision of the wearer.
  • the sur ⁇ faces of the lenses are preferably curved, in the con ⁇ ventional manner, but may, of course, be plane if pre ⁇ ferred.
  • spectacle frames may be made of plastics, in a manner known per se and may subsequently, before being fitted with lenses, be metallised by sputtering with metal. Alternatively, lenses already fitted may be appropriately masked off during sputtering the frames. Ideally, reflective metals which are silver or gold in appearance may be used, for example silver, gold or aluminium metals may be used.
  • multi-layer coating of the spectacle frames may be carried out by subjecting the frames to successive coating steps, and that sputtered metal layers may be utilised in conjunction with non- metallic layers, for example a transparent layer, such as a tin oxide layer may be applied over a sputtered metal layer or alternate layers of various metals and tin oxide may be applied to the frames. It may be found advant- ageous to similarly multi-coat the hologram-bearing spectacle lenses.
  • the sputtering may, if desired, be confined to specific areas on the frames, to afford special visual effects.
  • the optical density of the metallic coating on the frames may be varied locally in accordance with the patterning of a transmission hologram or diffraction grating in a manner known per se, so that a person viewing the frames of the spectacles will see holographic images associated therewith, or vividly coloured patterns or the like, with or without a "three- dimensional" effect.
  • the frames of the present invention may be used in conjunction with lenses bearing holograms, as proposed above.
  • the sputtering of the frames in accordance with the present invention allows excellent visual coordination of the frames with the lenses, so that the frames can be made to merge visually with the lenses or can be contrasted therewith according to the wish of the designer, rather than by necessity.
  • the present invention is equally applic ⁇ able to spectacles having conventional lenses.
  • the holograms thereon may be provided as relief image holo ⁇ grams in moulding the spectacle frames, by the technique referred to above for producing lenses bearing such holo ⁇ grams, with subsequent application of a reflective coat- ing, for example, by metallic sputtering.

Abstract

Spectacles, such as ''sun-glasses'' comprising lenses provided with a partially reflective, partially transmissive layer which incorporates a hologram. As a result, a holographic image within the area of the lens may be viewed by a person looking at the wearer of the spectacles. The lenses may be of plastics with a relief image hologram formed thereon in moulding the lenses, the lenses being subsequently metallised, for example by metallic sputtering. The hologram may present the appearance of an eyeball winking, a flag, advertizing material or the like.

Description

-l~
Title: "Improvements in or relating to spectacles"
THIS INVENTION relates to spectacles.
Spectacles are known, as so-called "sun glasses" which have lenses (normally plain lenses) provided with a partially reflective and partially light transmissive layer or coating, whereby the intensity of light passing to the wearer's eyes through said layer is attenuated without otherwise interfering with the wearer's vision, whereas, due to the relatively high level of light reflected outwardly from the partially reflective, partially transmissive layer, as compared with the inten¬ sity of light reflected from the wearer's skin and eyes through the partially reflective and partially trans¬ missive layer, the lenses present the appearance, to a person viewing the wearer, of totally reflective metallic surfaces.
It is an object of one aspect of the present invention to provide spectacles which are similar to these known spectacles in the sense that to the wearer they serve simply to attenuate the intensity of light reaching the eye, but which are capable of presenting a striking or unusual appearance to a person viewing the wearer.
According to this aspect of the invention spec¬ tacles are provided having lenses (as herein defined) each provided with a partially reflective and partially light transmissive layer which incorporates a hologram, whereby a holographic image within the area of the lens may be viewed by a person looking at the wearer of the spectacles.
It is another object of the present invention to provide an improved means of providing spectacle frames with a metallic appearance, for example, the appearance of polished metal, whilst retaining the freedom to use for such frames materials which may be more preferred from a structural or manufacturing viewpoint.
According to this aspect of the present invention there is provided a spectacle frame provided with a light reflective coating by sputtering with metal.
The term "lens" as used herein is intended to com¬ prehend a transparent body without any converging or diverging power, as well as a body which acts as a con¬ verging or diverging lens. The term "spectacles" as used herein is also intended to include, in addition to spec- tacles of conventional construction, Items such as "clip on" attachments intended as an ancillary to normal spec¬ tacles and which may be clipped over the frames of the latter in known manner to cover the normal lenses with additional "lenses". Furthermore, the term is also intended to include variants where, for example, a single unitary transparent body extends across both eyes and thus serves as the "lenses".
In a preferred embodiment of the invention, a pair of "sun glasses" has lenses of transparent material hav¬ ing a layer or coating which is partially reflective and partially light transmissive, with the optical density of said layer or coating being varied locally in accordance with the patterning of a hologram in a manner known per s_e, so that a person viewing the lenses of the spectacles whilst worn by another person will be able to view, with¬ in the areas of the lenses, a corresponding holographic image. The image concerned may be, for example, that of a large caricatured eye-ball winking, that of a flag such as the Union Jack, or advertising material, for example pertaining to a product in the promotion of which the spectacles in question may be sold or given away.
The said layer, when provided, may comprise a plastics material film which has been sputtered with metal. Ideally reflective metals which are silver or gold in appearance may be used. In practice, silver, gold or aluminium metals are likely to be used.
The lenses, with the hologram-incorporating, reflective/transmissive layer may be arranged to be interchangeable in the spectacle frame so that the wearer can present to onlookers selected hologram images from a plurality of available images and may change the lenses, and thus the images, from time to time, as desired.
It will be appreciated that, provided that the normal optical quality of the lenses is otherwise correct, the provision of the hologram images thereon will be non-injurious to the eyesight of the wearer but will provide the wearer with a harmless means of present- ing a striking or spectacular effect. Indeed, the sputtering technique referred to above, particularly in conjunction with the use of relief image holograms, as set out below, allows the production of sunglasses such that it will not be apparent to the person wearing the sunglasses that there is a hologram incorporated in or on the lenses, nor will there be any other impediment to clear vision.
Furthermore the invention provides a medium of sub- stantial potential for advertising and the like, as it is likely that members of the public will be willing to pay at least as much for such spectacles incorporating holo- -I -
graphic advertising material as will cover the production and distribution costs of such spectacles, whilst the potential coverage is, of course, very great.
In another embodiment of the invention, the spectacle lenses are of glass, the hologram is provided thereon in the form of a relief image hologram on one surface of the glass, formed by ion bombardment and acid etching of the glass, with the subsequent application of a part-transmissive, part-reflective coating on the re¬ sultant undulating surface. The coating may be formed by sputtering with an appropriate metal, such as gold, silver or aluminium.
The spectacle lenses may, however, be made from plastics by injection moulding or by pressing, the holo¬ gram taking the form of a relief image hologram impressed upon the respective lens surface by nickel press master, the lenses thereafter having a part-transmissive, part- reflective coating applied thereto, for example by metallic sputtering as set out above. In this case, in the production of such a master, a photo-polymer is used, to which the hologram pattern is applied photo¬ graphically, and which is subjected to "developing" pro- cedures, known per se, to form the relief image hologram thereon and which thereafter forms a basis for the pro¬ duction, in manner also known per se, such as by an electrolyte process, for the production of the nickel master.
The arrangement, in any of the above embodiments, is such that the person wearing the spectacles does not perceive the holographic image, but has the same view as he would if he were wearing ordinary "sun-glasses". That is to say, the sunglasses, apart from the desired reduction in light intensity, present no impediment to the vision of the wearer. In spectacles embodying the invention, the sur¬ faces of the lenses are preferably curved, in the con¬ ventional manner, but may, of course, be plane if pre¬ ferred.
It will be appreciated, of course, that the tech¬ niques and concepts disclosed above are not confined to spectacles, and that the invention also extends to the application of such technique and concepts to, for example, window panes, visors, windscreens and so forth.
In the above, and further embodiments of the invention, spectacle frames may be made of plastics, in a manner known per se and may subsequently, before being fitted with lenses, be metallised by sputtering with metal. Alternatively, lenses already fitted may be appropriately masked off during sputtering the frames. Ideally, reflective metals which are silver or gold in appearance may be used, for example silver, gold or aluminium metals may be used.
It will be appreciated that multi-layer coating of the spectacle frames may be carried out by subjecting the frames to successive coating steps, and that sputtered metal layers may be utilised in conjunction with non- metallic layers, for example a transparent layer, such as a tin oxide layer may be applied over a sputtered metal layer or alternate layers of various metals and tin oxide may be applied to the frames. It may be found advant- ageous to similarly multi-coat the hologram-bearing spectacle lenses.
Furthermore, it will be appreciated that the sputtering may, if desired, be confined to specific areas on the frames, to afford special visual effects. Like¬ wise, it is possible that the optical density of the metallic coating on the frames may be varied locally in accordance with the patterning of a transmission hologram or diffraction grating in a manner known per se, so that a person viewing the frames of the spectacles will see holographic images associated therewith, or vividly coloured patterns or the like, with or without a "three- dimensional" effect.
The frames of the present invention may be used in conjunction with lenses bearing holograms, as proposed above. In the latter case, the sputtering of the frames in accordance with the present invention allows excellent visual coordination of the frames with the lenses, so that the frames can be made to merge visually with the lenses or can be contrasted therewith according to the wish of the designer, rather than by necessity.
However, the present invention is equally applic¬ able to spectacles having conventional lenses.
Where the spectacle frames are made of plastics the holograms thereon may be provided as relief image holo¬ grams in moulding the spectacle frames, by the technique referred to above for producing lenses bearing such holo¬ grams, with subsequent application of a reflective coat- ing, for example, by metallic sputtering.

Claims

1. Spectacles having lenses (as herein defined) each provided with a partially reflective and partially light transmissive layer which incorporates a transmission hologram, whereby a holographic image within the area of the lens may be viewed by a person looking at the wearer of the spectacles.
2. Spectacles according to claim 1 wherein each said lens or the part thereof providing said layer, is inter¬ changeable with a similar lens or part carrying a differ¬ ent hologram whereby the images presented to the view of persons looking at the wearer may be varied at choice.
3. Spectacles having lenses (as herein defined) each provided with a partially reflective and partially light transmissive layer which incorporates a film of sputtered material.
4. Spectacles substantially as hereinbefore des¬ cribed.
5. A spectacle frame provided with a light reflective coating by sputtering with metal.
6. A pair of spectacles incorporating a frame provided with a light reflective coating by metallic sputtering and having lenses each provided with a partially reflect¬ ive and partially transmissive layer which incorporates a transmission hologram.
7. A method of providing spectacle frames with a metallic appearance comprising sputtering the frames with metal.
8. A spectacle frame substantially as hereinbefore described.
PCT/GB1987/000901 1986-12-11 1987-12-11 Improvements in or relating to spectacles WO1988004439A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB868629609A GB8629609D0 (en) 1986-12-11 1986-12-11 Spectacles
GB8629609 1986-12-11
GB878704220A GB8704220D0 (en) 1987-02-24 1987-02-24 Spectacles
GB8704220 1987-02-24
GB878714402A GB8714402D0 (en) 1987-06-19 1987-06-19 Spectacles
GB8714402 1987-06-19

Publications (1)

Publication Number Publication Date
WO1988004439A1 true WO1988004439A1 (en) 1988-06-16

Family

ID=27263242

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1987/000901 WO1988004439A1 (en) 1986-12-11 1987-12-11 Improvements in or relating to spectacles

Country Status (3)

Country Link
EP (1) EP0327594A1 (en)
AU (1) AU1043388A (en)
WO (1) WO1988004439A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401953A2 (en) * 1989-06-07 1990-12-12 Theoretical Optics, Inc. Laminated beam splitting optical system with reflective medium
WO1996026461A1 (en) * 1995-02-22 1996-08-29 Polaroid Corporation Eye-covering article bearing decorative reflection hologram
EP1081530A1 (en) * 1998-04-21 2001-03-07 Tasr Limited Lenses for holographic glasses and variants
EP1669815B1 (en) * 2004-12-10 2019-02-20 Essilor International Method for printing a binary hologram on a manufactured product, and optical lens with a binary hologram printed thereon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045125A (en) * 1974-06-27 1977-08-30 Etat Francias Band filters for use in protective glasses
US4048039A (en) * 1975-03-07 1977-09-13 Balzers Patent Und Beteiligungs-Ag Method of producing a light transmitting absorbing coating on substrates
FR2538130A1 (en) * 1982-12-17 1984-06-22 Tokyo Shibaura Electric Co ORNAMENTAL COMPOSITE MATERIAL, IN PARTICULAR FOR EYEWEAR MOUNTS
EP0133688A2 (en) * 1983-08-02 1985-03-06 Optische Werke G. Rodenstock Phototropic spectacles frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045125A (en) * 1974-06-27 1977-08-30 Etat Francias Band filters for use in protective glasses
US4048039A (en) * 1975-03-07 1977-09-13 Balzers Patent Und Beteiligungs-Ag Method of producing a light transmitting absorbing coating on substrates
FR2538130A1 (en) * 1982-12-17 1984-06-22 Tokyo Shibaura Electric Co ORNAMENTAL COMPOSITE MATERIAL, IN PARTICULAR FOR EYEWEAR MOUNTS
EP0133688A2 (en) * 1983-08-02 1985-03-06 Optische Werke G. Rodenstock Phototropic spectacles frame

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401953A2 (en) * 1989-06-07 1990-12-12 Theoretical Optics, Inc. Laminated beam splitting optical system with reflective medium
FR2648081A1 (en) * 1989-06-07 1990-12-14 Theoretical Optics Inc METHOD FOR RESTORING THE FITNESS FOR THE TRANSMISSION OF COHERENT LIGHT OF A TRANSPARENT MEDIUM AND OPTICAL STRUCTURE COMPRISING SUCH A MEDIUM
EP0401953A3 (en) * 1989-06-07 1991-08-14 Theoretical Optics, Inc. Laminated beam splitting optical system with reflective medium
WO1996026461A1 (en) * 1995-02-22 1996-08-29 Polaroid Corporation Eye-covering article bearing decorative reflection hologram
US6020983A (en) * 1995-02-22 2000-02-01 Polaroid Corporation Method for the manufacture of eye-covering articles bearing decorative reflection holograms
EP1081530A1 (en) * 1998-04-21 2001-03-07 Tasr Limited Lenses for holographic glasses and variants
EP1081530A4 (en) * 1998-04-21 2001-10-24 Tasr Ltd Lenses for holographic glasses and variants
EP1669815B1 (en) * 2004-12-10 2019-02-20 Essilor International Method for printing a binary hologram on a manufactured product, and optical lens with a binary hologram printed thereon

Also Published As

Publication number Publication date
EP0327594A1 (en) 1989-08-16
AU1043388A (en) 1988-06-30

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