WO2013178548A1 - Dispositif mélangeur de couleurs pour injecter de la lumière dans un conducteur optique - Google Patents

Dispositif mélangeur de couleurs pour injecter de la lumière dans un conducteur optique Download PDF

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Publication number
WO2013178548A1
WO2013178548A1 PCT/EP2013/060741 EP2013060741W WO2013178548A1 WO 2013178548 A1 WO2013178548 A1 WO 2013178548A1 EP 2013060741 W EP2013060741 W EP 2013060741W WO 2013178548 A1 WO2013178548 A1 WO 2013178548A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixing device
light
optical fiber
coupling
led
Prior art date
Application number
PCT/EP2013/060741
Other languages
German (de)
English (en)
Inventor
Elena Justus-Bischler
Bernhard Bayersdorfer
Josef Lang
Original Assignee
Lisa Dräxlmaier GmbH
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 Lisa Dräxlmaier GmbH filed Critical Lisa Dräxlmaier GmbH
Publication of WO2013178548A1 publication Critical patent/WO2013178548A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4236—Fixing or mounting methods of the aligned elements
    • G02B6/424—Mounting of the optical light guide
    • G02B6/4242—Mounting of the optical light guide to the lid of the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3809—Dismountable connectors, i.e. comprising plugs without a ferrule embedding the fibre end, i.e. with bare fibre end
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements

Definitions

  • the present invention relates to a mixing device for coupling light of a multicolor LED into one
  • Optical fiber and a coupling device with such a mixing device Optical fiber and a coupling device with such a mixing device.
  • Optical fiber is because in this case only a part of the generated light is actually coupled into the optical fiber.
  • US 2011/0149592 AI for example, a device emerges, with the aid of which light from a white LED can be focused so that it is efficiently coupled into an optical fiber.
  • Multi-color LEDs such as an RGB LED
  • RGB LED have a plurality of discrete light emitting surfaces from which the generated light of each color emerges.
  • Filter elements are described, which are between the individual Discrete colors emitting Abstrahlflachen are provided to effect a mixing of the light.
  • Optical fiber are particularly suitable for use in the
  • Automotive sector insufficient, because they are too inefficient, too expensive, too expensive to install and / or too large.
  • the object of the present invention is prior to this
  • the mixing device according to the invention for coupling light of a multicolor LED into an optical fiber is at least partially cylindrical in shape and provided with a convex end face that it is suitable for light of different colors of a AufnähmeStrahls one
  • the output beam diameter is smaller than the receiving beam diameter.
  • an optical fiber is understood to mean any fibrous optical fiber, irrespective of whether it is made of glass, PMMA or another light-conducting plastic or other material.
  • a multicolor LED refers in this context
  • RGB LED in particular an RGB LED.
  • Such an LED has a plurality of light-emitting fields that emit light of discrete wavelengths and thus colors. These multiple fields can both connect directly to each other as well as be spaced apart to some extent.
  • the mixing device is at least partially
  • cylindrically shaped This is to be understood as a shape that has a base surface of a specific shape and a cylinder axis along which the base surface is projected.
  • the cylinder axis does not necessarily have to be perpendicular to the base surface and the base surface does not necessarily have to be circular.
  • the mixing device is provided with a convex end face.
  • the mixing device comprises a cylinder portion and a directly adjoining portion, for example, which in particular the shape of a
  • the mixing device according to the invention is characterized in particular by its compactness. Due to the claimed shape is in a very small space both a mixture and a
  • Beam diameter allows. In this way, it is possible to use a single component, with the light emitted by an RGB LED light evenly in an optical fiber
  • Mixing device takes place in particular by multiple reflection at the interface or at edges and / or at scattering areas within the device.
  • the light it is also possible for the light through a diffused material, scattered individually
  • Optical conductivity of the device affects.
  • Blending device relative to the optical fiber in contrast to the prior art significantly increased, allowing for easier installation of the device.
  • the optical fiber is guided only by a longitudinal guide and in abutment with the
  • the inventive design of the mixing device allows a significant reduction in the outer dimensions of the mixing device in contrast to previously known
  • the diameter the mixing device is for example between 2 mm and 4 mm, in particular 2.8 mm, their length is between 4 mm and 12 mm, in particular 7 to 8 mm. In this way it is possible to light a multicolor LED into an optical fiber
  • a preferred one-piece design of the mixing device allows a particularly inexpensive production of
  • the material used for the mixing device is a transparent plastic, preferably PMMA
  • Plastic can be both a solid material and a viscous or gel-like material, provided the dimensional stability of the mixing device is ensured, for example, by a jacket. It is also possible that the mixing device contains various sections, some of which are made of solid material and others of viscous or gelatinous material.
  • the cylindrical portion may comprise a diffused material, an at least partially roughened surface or an at least partially provided with a reflective layer surface. Such features of the cylindrical portion affect the scattering or conduction of the light and thus the mixing of the individual colors of the
  • An inventive coupling device comprises a
  • Emission surface of the LED is meant, but not a socket or peripheral devices thereof.
  • the optical fiber is the end face directly to the convex end face of the mixing device.
  • mixing device has a closed surface, so it is not integral with the optical fiber
  • a holder is provided on the housing of the coupling device.
  • Holder is intended to attach the optical fiber relative to the mixing device precisely to ensure optimum utilization of the
  • Brackets have proven both locking elements and clamping elements proved to be suitable.
  • latching elements are single or multiple, lamellar elements conceivable that in contact with the optical fiber in the surface of the
  • the locking elements are for example made of flexible material, which gives way upon insertion of the optical fiber into the housing and locked in the optical fiber in the desired position analogous to a barb.
  • Clamping elements are for example
  • the attached figure shows a coupling device with a preferred mixing device.
  • the attached figure shows a preferred embodiment of a coupling device 100 with a preferred
  • the mixing device 10 has a circular cylindrical first section 12 and a
  • the length L of the mixing device 10 is in the illustrated embodiment 8 mm and the
  • Diameter D in the region of the cylindrical portion 12 is 2.8 mm.
  • the mixing device 10 is in the preferred
  • Embodiment made of PMMA connects directly to an RGB LED 16 at.
  • the mixing device 10 connects to the LED 16 at its foot ends, that is at the end of the
  • Mixing device 10 which is the convex curved surface of the mixing device 10 opposite.
  • Mixing device 10 has a substantially circular cross-section and thus simultaneously forms the base of the cylindrical portion 12 of the mixing device 10th
  • the LED 16 is held by a holder 24 of the coupling device 100 and can thus safely and precisely connected to necessary connections, for example, for electrical and heat dissipation.
  • the mixing device 10 is held by the coupling device 100 precisely, so that the relative position of the
  • the mixing device 10 has a coupling-out region 18, via which light of the LED 16 from the mixing device 10 into an optical fiber 20
  • the optical fiber 20 in the illustrated preferred embodiment is a PMMA conductor
  • Diameter of 1 mm which passes the light of the multicolor LED 16, for example, to realize an ambient lighting, instrument lighting or similar lighting form in a motor vehicle.
  • the optical fiber 20 is fed in a holder 22 of the housing of the coupling device 100 in its longitudinal direction to the mixing device 10 and abuts the end face against the decoupling point 18 of Mixing device 10 on. In this state, light from the multicolor LED 16 is particularly efficiently coupled into the optical fiber 20, both optimal utilization of the
  • Bracket 22 serve lamellar locking elements.
  • the locking elements are designed to be flexible, so that they move when inserting the optical fiber 20 into the housing of the coupling device 100 and at least partially lock in the surface of the optical fiber. As a result, the optical fiber 20 is easily mounted and yet fixed in the exact position in the housing.
  • the light coupled into the optical fiber 20 has both a high intensity and a uniform coloring.
  • the mount 22 for the optical fiber 20 is sufficiently precise to ensure the high efficiency of the
  • Mixing device 10 exploit because the mixing device 10 is designed such that it tolerates large tolerances with regard to the positioning accuracy of the optical fiber 20.

Abstract

L'invention concerne un dispositif mélangeur de couleurs (10) pour injecter de la lumière d'une DEL polychrome (16) dans une fibre optique (20). Le dispositif mélangeur (10) est configuré avec au moins une section cylindrique (12) et est doté d'une face frontale convexe, de telle manière qu'il est adapté pour enregistrer de la lumière de différentes couleurs d'un rayon d'enregistrement d'un diamètre de rayon d'enregistrement, pour mélanger les couleurs de la lumière enregistrée et pour sortir ensuite la lumière mélangée comme rayon de sortie d'un diamètre de rayon de sortie. Ce faisant, le diamètre du rayon de sortie est plus petit que le diamètre du rayon d'enregistrement.
PCT/EP2013/060741 2012-06-01 2013-05-24 Dispositif mélangeur de couleurs pour injecter de la lumière dans un conducteur optique WO2013178548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012005432.5 2012-06-01
DE201220005432 DE202012005432U1 (de) 2012-06-01 2012-06-01 Mischvorrichtung zum Einkoppeln von Licht in einen Lichtleiter

Publications (1)

Publication Number Publication Date
WO2013178548A1 true WO2013178548A1 (fr) 2013-12-05

Family

ID=46580045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/060741 WO2013178548A1 (fr) 2012-06-01 2013-05-24 Dispositif mélangeur de couleurs pour injecter de la lumière dans un conducteur optique

Country Status (2)

Country Link
DE (1) DE202012005432U1 (fr)
WO (1) WO2013178548A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223992B4 (de) 2014-11-25 2023-08-17 Robert Bosch Gmbh Projektionseinrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724486A1 (de) * 1997-06-10 1998-12-17 Draexlmaier Lisa Gmbh Befestigung eines Lichtwellenleiters zur Konturbeleuchtung
US20080030974A1 (en) * 2006-08-02 2008-02-07 Abu-Ageel Nayef M LED-Based Illumination System
US20080266893A1 (en) * 2005-04-06 2008-10-30 Tir Systems Ltd. Lighting Module With Compact Colour Mixing and Collimating Optics
US20110149592A1 (en) 2009-12-22 2011-06-23 Artsyukhovich Alexander N Light collector for a white light led illuminator
US20110228555A1 (en) 2007-08-10 2011-09-22 Koninklijke Philips Electronics N.V. Lighting device
EP2413026A1 (fr) * 2010-07-27 2012-02-01 ZETT OPTICS GmbH Source de lumière froide

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19724486A1 (de) * 1997-06-10 1998-12-17 Draexlmaier Lisa Gmbh Befestigung eines Lichtwellenleiters zur Konturbeleuchtung
US20080266893A1 (en) * 2005-04-06 2008-10-30 Tir Systems Ltd. Lighting Module With Compact Colour Mixing and Collimating Optics
US20080030974A1 (en) * 2006-08-02 2008-02-07 Abu-Ageel Nayef M LED-Based Illumination System
US20110228555A1 (en) 2007-08-10 2011-09-22 Koninklijke Philips Electronics N.V. Lighting device
US20110149592A1 (en) 2009-12-22 2011-06-23 Artsyukhovich Alexander N Light collector for a white light led illuminator
EP2413026A1 (fr) * 2010-07-27 2012-02-01 ZETT OPTICS GmbH Source de lumière froide

Also Published As

Publication number Publication date
DE202012005432U1 (de) 2012-06-26

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