EP2169296A1 - Beleuchtungsvorrichtung, die eine Lichtleitung umfasst - Google Patents

Beleuchtungsvorrichtung, die eine Lichtleitung umfasst Download PDF

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Publication number
EP2169296A1
EP2169296A1 EP09170495A EP09170495A EP2169296A1 EP 2169296 A1 EP2169296 A1 EP 2169296A1 EP 09170495 A EP09170495 A EP 09170495A EP 09170495 A EP09170495 A EP 09170495A EP 2169296 A1 EP2169296 A1 EP 2169296A1
Authority
EP
European Patent Office
Prior art keywords
guide
groove
lobe
light
rear edge
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP09170495A
Other languages
English (en)
French (fr)
Inventor
Christophe Dubosc
Jean-Claude Puente
Antoine De Lamberterie
Rémi Sander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP2169296A1 publication Critical patent/EP2169296A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lighting device for a motor vehicle comprising a light-guiding sheet.
  • guiding sheet comprises a light guide formed of a substantially transparent material and of small thickness relative to its two other dimensions.
  • a guide sheet for such a lighting device is already known, for example in the document EP-A-1,881,263 with reference to the figure 10 said document.
  • the light rays emitted by the light source must be able to propagate throughout the volume of the guide web without encountering any obstacle.
  • each face of the guide ply performs an optical function.
  • the guide faces and at least a portion of the rear edge of the sheet form diopters on which the light rays are reflected by total reflection. This implies that the guide faces and said rear slice portion are free from any contact with an external material.
  • this second solution does not give full satisfaction either, because the back slice has the function of reflecting the light rays that propagate in the guide web. However, the light rays emitted in the direction of the junction between the fixing lugs and the rear edge are no longer reflected, but they continue their course in the bracket. This causes a local loss of light intensity of the light beam that is perceptible by an observer. The bundle thus provides an illuminated appearance that loses its homogeneity.
  • the guide ply when the guide ply comprises several lobes, it has been found that the guide ply has, at the junction between two lobes, a fragile zone.
  • the fragility is due, on the one hand, to the form in the beginning of rupture of this zone, and it is due, on the other hand, to the method of making the web.
  • the guide web is generally made by injection molding of molten material in a mold.
  • the injection is performed simultaneously by several orifices each of which is associated with at least one lobe.
  • the junction between two lobes is capable of forming a weld when the two masses of molten material, each injected by an associated injection orifice, meet. This weld thus creates a zone of weakness in the guide ply.
  • the fragility created by the weld is amplified by the form in the beginning of rupture.
  • the arrangement for coupling the source to the sheet may take different forms: it may be a housing in the form of a through hole (or not) the sheet, in which one can dispose, in whole or in part, a source radially emitting light, including a light emitting diode radial emission, known under the name "LED side emitter”. It may also be arrangements / optical means, coming from matter or not with the sheet, intended to collect and send into the sheet of light emitted by a more conventional light source than that mentioned above, a simple standard light emitting diode, a lambertian light source, for example, which is then preferably disposed in close proximity to the web but not in a housing thereof, or not at all.
  • the guide ply can be "held” by the frame in various ways, in particular by mechanical tightening (screwing, etc.), overmolding, gluing, etc.
  • the means arranged vis-à-vis at least one upper zone of the rear edge, or on the edge thereof, to reflect the light rays transmitted through the rear edge comprise a reflective material coating arranged opposite at least one top region of the rear edge, or on the edge thereof.
  • said means comprise an arrangement on said wedge-shaped rear edge, for returning the light rays in the sheet by double total reflection.
  • the means are thus an integral part of the sheet, it avoids the need for additional coating.
  • FIG. 1 to 5 a lighting device 20 for a motor vehicle (not shown) which is intended to project a light beam generally towards the front along a longitudinal optical axis "A".
  • the lighting device 20 comprises a light-guiding sheet 22 which extends here in a transverse longitudinal plane. It is made in one piece of a transparent material such as polycarbonate (PC) or polymethyl methacrylate (PMMA).
  • a transparent material such as polycarbonate (PC) or polymethyl methacrylate (PMMA).
  • the guide ply is curved.
  • the guide ply 22 is delimited vertically by an upper guide face 24 and a lower guide face 26.
  • the two guide faces 24, 26 are parallel so that the guide ply 22 has a constant vertical thickness which is low by relative to its longitudinal and transverse dimensions.
  • the guide ply 22 has the shape of a lobe which is delimited longitudinally by a vertical transverse slice of the front end 28 of exit of the light beam and by a vertical rear end slice 30 which is curved in a longitudinal transverse plane for to form a lobe.
  • the ends of the rear edge 30 are joined directly to the transverse ends of the front edge 28.
  • the front edge 28 is inclined relative to the transverse direction.
  • the front wafer 28 is curved.
  • the output front wafer 28 has strip-like curved patterns that form a Fresnel optic for changing the distribution of light rays in the emitted light beam.
  • a housing 32 is arranged in the lower guide face 26 of the guide web 22 single-lobed.
  • the housing 32 is intended to receive a light source 34 which is capable of emitting light rays inside the guide web 22 which is single-lobed.
  • the light source 34 is for example formed by a light emitting diode (LED) with radial emission, which has the advantage of not heating the guide web 22 single-lobed.
  • LED light emitting diode
  • the light rays emitted by the light source 34 propagate in the guide web 22 unilobed by successive total reflections against the guide faces 24, 26. Viewed from above, as shown in FIG. figure 3 , the light rays move in a straight line.
  • the rear slice 30 has the function of reflecting the light rays towards the front wafer 28, while the front wafer 28 has the function of transmitting the light rays to the outside of the guide ply 22 that is unilobed by refraction so as to form the beam luminous.
  • Some of the light rays are emitted directly to the front edge 28 of the unobtrusive guide ply 22 which they reach with an angle of incidence which allows said light rays to be transmitted outside the guide ply 22. unilobed by refraction.
  • the light rays transmitted to the outside by the front edge 28 of output form the light beam which is projected along the longitudinal optical axis.
  • the rear reflection slice 30 may be shaped into a parabola.
  • the light source 34 is then arranged on the focus of the dish.
  • the rear edge of the guide web may have other shapes.
  • the light rays are advantageously reflected on the rear edge 30 by total reflection. Indeed, this type of reflection makes it possible to avoid losses of light intensity.
  • the total reflection occurs when the angle of incidence of a light beam directed towards the rear edge 30 is greater than a limit angle.
  • the angle of incidence is measured with respect to the normal at the rear edge 30.
  • the light rays which are emitted towards the two front end sections 36 of the rear edge 30 reach the rear edge 30 with an angle of incidence greater than the limit angle, which allows their total reflection.
  • the light rays emitted by the light source 34 have an angle of incidence that is smaller than the limit angle. These light rays are then not totally reflected, but they are transmitted with refraction outside the guide ply 22 which is unilobed through the rear edge 30.
  • the light source 34 is arranged in such a way that the light rays emitted in the direction of an intermediate section 38 of the rear edge 30 are not totally reflected. These rays of light will be called thereafter rays fleeing.
  • the reflective material coating 40 bites slightly on the front end sections 36 of the rear wafer 30 so as to ensure that substantially all of the light rays emitted by the light source 34 are used to form the light beam.
  • the intermediate section 38 is arranged on a so-called “top zone” 38 of the lobe-shaped unilateral guide web 22.
  • This upper zone 38 extends on either side of the intersection between the optical axis "A" and the rear edge 30.
  • the summit zone 38 has a radius of curvature which is less than the radii of curvature of the front end sections 36 of the rear edge 30.
  • the lighting device 20 comprises a frame 42 which carries the guide ply 22 which is single-lobed.
  • the frame 42 is here formed by a single elementary frame 42.
  • the single-lobed guide ply 22 is thus intended to be fixed on the motor vehicle by means of the frame 42.
  • the frame 42 is formed by a block of material having a front face 44 which has a curvature which conforms to the curvature of the rear edge 30 of the guide web 22 which is unilobed in its top region 38, as shown in FIG. figure 4 .
  • a transverse groove 46 opens longitudinally forwards into the curved front face 44 of the frame 42.
  • the groove 46 is delimited vertically by an upper longitudinal transverse face 48 and a lower longitudinal transverse face 48 which extend to each other.
  • the groove 46 is bounded longitudinally rearward by a rear vertical bottom 50.
  • the upper and lower faces 48 of the groove 46 are spaced vertically by a distance that is substantially equal to the vertical thickness of the guide web 22 single-lobed.
  • the bottom 50 of the groove 46 has a curvature that matches the rear edge 30 of the guide web 22 in its sole region 38.
  • the coating of reflective material 40 is thus interposed between the bottom 50 of the groove 46 and the zone top 38 of the rear edge 30 of the guide web 22 single-lobed.
  • the groove 46 is thus intended to house the top zone 38 of the guide ply 22 one-lobed so that the guide ply 22 is held by the frame 42 by adhesion between the upper and lower faces 48 of the groove 46 and the guide faces 24, 26 of the guide web 22 single-lobed.
  • the upper and lower faces of the groove 46 will hereinafter be referred to as "bearing faces 48" because the weight of the single-lobed guide ply 22 is carried by said bearing faces 48.
  • the single-lobed guide ply 22 is here borne cantilevered by the frame 42 because the center of gravity of the single-lobed guide ply 22 is arranged outside and in front of the arc formed by the groove 46.
  • the bearing faces 48 of the groove 46 cover a curved peripheral band of the guide face 24, 26 vis-à-vis the constant width "c" as this is represented at the figure 4 .
  • the contact surface between the guide faces 24, 26 and the bearing faces 48 is minimized so as to allow good fixing of the guide web 22 unilobed without reducing the light intensity of the light beam perceptibly .
  • the bearing faces 48 extend here continuously along the peripheral band which borders the summit zone 38 of the guide web 22 single-lobed.
  • the bearing faces are discontinuous so as to further minimize the contact area between the bearing faces and the guide faces.
  • the upper bearing face extends in contact with a median portion of the summit zone, while the lower bearing face is divided into two parts each of which is in contact with end portions of the summit zone. .
  • the curved bottom 50 of the groove 46 which conforms to the shape of the rear edge 30 of the guide ply 22, which is unilobed in facing relation, makes it possible to block the transverse displacements of the guide ply 22 which is single-ended.
  • the single-lobed guide ply 22 is thus carried cantilevered by the frame 42.
  • the frame 42 thus carrying the guide ply 22, which is single-lobed, is intended to be fastened to an element of the motor vehicle, for example by fastening screws introduced. in fixing holes made in fixing lugs 52 of the frame 42.
  • the block forming the frame 42 has no optical function. It may have any shape while ensuring sufficient strength and rigidity to carry the guiding web 22 single-lobed.
  • the shape and size of the frame 42 are advantageously adapted to the housing of the motor vehicle in which it is mounted.
  • the guide web 22 has a plurality of globally aligned lobes. It comprises here five lobes which are referenced 22A to 22E.
  • the guide ply 22 made according to this second embodiment of the invention will be described as guide ply 22 "multilobed”.
  • the multilobed guide ply 22 is more particularly made in one piece so as to have homogeneous optical properties throughout its volume.
  • Each lobe 22A to 22E of the multilobed guide ply 22 individually has a shape similar to the shape of the guide web 22 single-lobed of the first embodiment.
  • the lobes 22A to 22E all have an identical vertical thickness so that the thickness of the multilobed guide ply 22 is constant.
  • the multilobal guide ply 22 extends in a vertical longitudinal plane.
  • the multilobed guide ply 22 is curved.
  • optical axes referenced A1 to A5 of each lobe 22A to 22E are here oriented substantially parallel.
  • the optical axes may be inclined relative to each other so that each lobe participates in the formation of the overall beam by illuminating a preferred direction which is not necessarily in the longitudinal optical axis .
  • the lobes 22A to 22E are arranged so that the front edge 28 of the multilobed guide ply 22 is continuous and non-polygonal.
  • the rear slice 30 has the shape of a cusp point 56.
  • Each lobe 22A to 22E is provided with a housing 32 associated in its lower face to receive a light source 34 associated as explained in the first embodiment.
  • the behavior of the light rays in the multilobed guide ply 22 is identical to that described previously.
  • each lobe 22A to 22E has in particular in its rear edge 30 a top zone 38 vis-à-vis which is arranged a coating of associated reflective material 40.
  • At least one lobe 22A, 22E is mounted in an elementary frame 42A, 42E associated as described in the first embodiment.
  • transverse end lobes 22A and 22E are mounted in an associated elementary mount 42A, 42E.
  • the elementary frames 42A, 42E are individual, that is to say they are formed by separate parts from each other.
  • Each elementary mount has the same structure as the elementary mount 42 of the first embodiment.
  • the two elementary frames 42A, 42E are formed in two distinct elements.
  • each lobe 22A to 22E of the multilobed guide ply 22 is mounted in an individual elementary frame 42A to 42E associated individual.
  • each lobe 22A to 22E is mounted in an elementary frame 42A to 42E associated.
  • the lighting device 20 thus comprises five elementary frames 42A, 42B, 42C, 42D, 42E.
  • All the elementary frames 42A to 42E are made integrally in one piece.
  • the frame 42 is thus formed by a monobloc ramp of elementary frames 42A to 42E.
  • intersection zones 54 between two lobes exhibit a fragility and a tendency to deformation in flexion in a transverse plane, in particular by approaching or moving transversely from the summit zones 38 of two lobes adjacent.
  • the elementary mounts 42A to 42E are fixed rigidly to each other so as to prevent the transverse movement of a first lobe with respect to a second adjacent lobe.
  • wedging portions 58 form a transverse bridge between two grooves 46 of two elementary frames 42A to 42E adjacent. Each wedging portion 58 is thus interposed transversely between the bottoms 50 of two adjacent grooves 46 so as to stiffen in a transverse direction the multilobed guide ply 22.
  • the wedging portion 58 is for example formed by a transverse longitudinal rib which transversely connects the bottoms 50 of the two adjacent grooves 46.
  • the ramp 42 of elementary frames 42A to 42E is made integrally in one piece with the wedging portions 58.
  • the frame 42 is thus formed by a monobloc ramp of elementary frames 42A to 42E.
  • the multilobed guide ply 22 is thus carried by the grooves 46 cantilevered forward.
  • the multilobal guide ply 22 is advantageously intended to be maintained by the arrangement of pairs of vertical support needles 60, as shown in FIG. figure 8 .
  • a first needle 60 of a pair has a free lower end which is intended to come into contact with the upper face guiding the multilobed guide ply 22 in a front zone, while the upper free end of the second needle 60 of the pair is arranged in contact with the lower face of the guide vertically vis-à-vis the first needle 60.
  • the oscillation movement of the front edge 28 of the multilobed guide ply 22 is attenuated, or even blocked .
  • each needle 60 is in contact with the guide ply 22 multilobed on an intersection zone 54 in which a small amount of light rays is intended to pass.
  • the needles 60 are distinct elements of the frame 42 which are fixed on an element of the motor vehicle.
  • the needles 60 are made integral with the elementary frames 42A to 42E.
  • Each wedging portion 58 then comprises two arms 62 which extend longitudinally forwards, each of which carries at its front end one of the needles 60 of a pair.
  • the elementary mounts 42, 42A, 42E of the first and second embodiments or the mounts ramp 42 of the third embodiment may be manufactured in a number of ways which are explained later. Thereafter, the term guiding ply 22 will therefore apply equally to the guide ply 22 single-lobed of the first embodiment and to the multilobed guide ply 22 of the second and third embodiments. Similarly, the term mount 42 will apply both to the elementary frames 42 of the first and second embodiments that the ramp frames 42 of the second world of embodiment.
  • the ramp of frames 42 is made integrally in one piece.
  • the elementary frames 42, 42A, 42E shown in FIGS. figures 1 , 4 and 6 are each made in one piece.
  • the frame 42 is for example made by overmolding on the guide ply 22. This production method makes it possible to obtain sufficient adhesion between the bearing surfaces 48 and the guide faces 24, 26 of the guide ply 22.
  • each coating of reflective material 40 is previously arranged on the upper zone 38 associated with the rear edge 30 of the guide ply 22. It is for example a deposit of material by aluminizing or the application an adherent film made of reflective material.
  • the guide ply 22 which is overmolded on the frame 42.
  • the coating of reflective material 40 is then previously applied against the bottom 50 of each groove 46 of the frame 42.
  • the latter variant has the advantage of not requiring masking operation because the frame 42 does not fulfill any optical function.
  • the guide ply 22 is mounted by force-fitting each top zone 38 in an associated groove 46 of the frame 42.
  • the coating of reflective material 40 can be applied indifferently to the bottom 50 of the grooves 46 of the frame 42 or to the guide ply 22.
  • the bearing faces 48 of each groove 46 have an axial spacing which is slightly smaller than the thickness of the guide ply 22.
  • the guide ply 22 is pinched vertically between the bearing surfaces 48 of each groove 46.
  • the bearing surfaces 48 of each groove 46 are elastically deformable to avoid the creation of too high stresses in the guide ply 22.
  • excessive stress it will of course be understood that of stress likely to cause the rupture or the damage of the guide ply 22.
  • the bearing faces 48 are for example carried by edges of small vertical thickness forming lips may be spaced elastically.
  • the bearing faces 48 thus adhere to the guide faces 24, 26 by pressure. It is also possible to apply a glue coating between at least one bearing face 48 and the guiding face 24, 26 vis-à-vis in the case where the pressure adhesion would be insufficient to maintain the guide ply 22 mounted in the mount 42.
  • the web has ends 61 facing the ends 52 of the frame: it can then mechanically clamp or stick, the web to its mount at the ends facing each other.
  • the ramp of frames 42 is made of at least two parts, each of which has a bearing surface 48 of each groove 46 so that the two parts are fixed rigidly one on the other by clamping the guide ply 22 between the bearing faces 48.
  • the ramp of frames 42 is divided into a lower part and an upper part.
  • the two parts are for example fixed to each other by screwing.
  • the two parts are symmetrical with respect to their joint plane so that each part can be produced independently by molding in a single mold.
  • the elementary frame 42 or the mounting ramp 42 may also be shaped to perform functions other than the support of the guide ply 22.
  • the elementary frame 42 or the mounting ramp 42 may comprise a longitudinal transverse face. which is intended to bear the light source (s) 34 of the lighting device 20.
  • the figure 11 shows an embodiment where the light source 24 is held in position relative to the guide sheet by mechanical means 63 attached to or integral with one of the arms 62.
  • the advantage of this choice is that, all LEDs are attached to the same component, the accuracy of their positioning relative to the web is improved.
  • This variant without reflective coating has the advantage of eliminating an additional component (the reflective coating), which must be affixed to the sheet, which requires a longer and more complicated manufacturing process. By cons, it requires a molding of the tablecloth with an overflowing corner that must be preserved until it is mounted.
EP09170495A 2008-09-25 2009-09-17 Beleuchtungsvorrichtung, die eine Lichtleitung umfasst Withdrawn EP2169296A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0805322A FR2936296B1 (fr) 2008-09-25 2008-09-25 Dispositif d'eclairage comportant une nappe de guidage

Publications (1)

Publication Number Publication Date
EP2169296A1 true EP2169296A1 (de) 2010-03-31

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EP (1) EP2169296A1 (de)
FR (1) FR2936296B1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042195A1 (de) * 2009-10-10 2011-04-14 Hella Kgaa Hueck & Co. Leuchteinheit für fahrzeuge
DE102010047903A1 (de) * 2010-10-11 2012-04-12 Motogadget Gmbh Lampe für ein Fahrzeug
WO2012059852A1 (fr) * 2010-11-05 2012-05-10 Valeo Vision Dispositif d'eclairage ou de signalisation, pour vehicule automobile, comportant une nappe de guidage de lumiere
DE102011018508A1 (de) * 2011-04-23 2012-10-25 Automotive Lighting Reutlingen Gmbh Lichtleiterelement-Anordnung und Kraftfahrzeugbeleuchtungseinrichtung mit einer solchen Lichtleiterelement-Anordnung
DE102011089481A1 (de) * 2011-12-21 2013-06-27 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung mit einer langen und flachen leuchtenden Fläche
WO2013104345A1 (en) * 2012-01-11 2013-07-18 ŠKODA AUTO a.s. Light guide
DE102014211874A1 (de) 2013-06-20 2014-12-24 Automotive Lighting Reutlingen Gmbh Beleuchtungseinrichtung eines Kraftfahrzeugs
DE102013212355A1 (de) 2013-06-26 2014-12-31 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung mit einem eine Einkoppeloptik und eine Transport- und Umformoptik aufweisenden Lichtleiter
EP2857740A1 (de) * 2013-10-02 2015-04-08 Automotive Lighting Reutlingen GmbH Kfz-Beleuchtungseinrichtung
DE102013225950A1 (de) * 2013-12-13 2015-06-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung
FR3106651A1 (fr) * 2020-01-27 2021-07-30 Psa Automobiles Sa Guide de lumière plat pour module lumineux de signalisation de véhicule automobile
WO2022049195A1 (de) * 2020-09-03 2022-03-10 HELLA GmbH & Co. KGaA Verfahren zum herstellen eines flachlichtleiters und beleuchtungsvorrichtung
EP3486562B1 (de) * 2017-11-20 2024-01-24 Valeo Vision Optical element for automotive vehicle optical module

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DE29603006U1 (de) * 1996-02-08 1996-04-18 Osa Elektronik Gmbh Lichtschiene zur Markierung von Flächen, Körpern u.dgl. sowie zur Beleuchtung von Anzeigeelementen
US5757112A (en) * 1996-03-22 1998-05-26 U.S. Philips Corporation Irradiation device
WO1999022174A1 (en) * 1997-10-24 1999-05-06 Minnesota Mining And Manufacturing Company Articles with diffuse reflection of light from light fibers
DE10231326A1 (de) * 2002-07-11 2004-02-19 Hella Kg Hueck & Co. Leuchteinheit für Fahrzeuge
US20050057938A1 (en) * 2003-07-17 2005-03-17 Schefenacker Vision Systems Germany Gmbh & Co. Kg Motor vehicle light
DE102006002322A1 (de) * 2006-01-18 2007-12-27 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
EP1881263A1 (de) 2006-07-21 2008-01-23 Valeo Vision Vorrichtung zur Beleuchtung oder Signalisierung, die eine gewölbte Lichtleiterplatte umfasst

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29603006U1 (de) * 1996-02-08 1996-04-18 Osa Elektronik Gmbh Lichtschiene zur Markierung von Flächen, Körpern u.dgl. sowie zur Beleuchtung von Anzeigeelementen
US5757112A (en) * 1996-03-22 1998-05-26 U.S. Philips Corporation Irradiation device
WO1999022174A1 (en) * 1997-10-24 1999-05-06 Minnesota Mining And Manufacturing Company Articles with diffuse reflection of light from light fibers
DE10231326A1 (de) * 2002-07-11 2004-02-19 Hella Kg Hueck & Co. Leuchteinheit für Fahrzeuge
US20050057938A1 (en) * 2003-07-17 2005-03-17 Schefenacker Vision Systems Germany Gmbh & Co. Kg Motor vehicle light
DE102006002322A1 (de) * 2006-01-18 2007-12-27 Hella Kgaa Hueck & Co. Leuchteinheit für Fahrzeuge
EP1881263A1 (de) 2006-07-21 2008-01-23 Valeo Vision Vorrichtung zur Beleuchtung oder Signalisierung, die eine gewölbte Lichtleiterplatte umfasst

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042195A1 (de) * 2009-10-10 2011-04-14 Hella Kgaa Hueck & Co. Leuchteinheit für fahrzeuge
DE102010047903A1 (de) * 2010-10-11 2012-04-12 Motogadget Gmbh Lampe für ein Fahrzeug
EP2439132A3 (de) * 2010-10-11 2013-01-23 Motogadget GmbH Beleuchtungseinrichtung für ein Fahrzeug
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FR2936296A1 (fr) 2010-03-26

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