WO2022049195A1 - Procédé de production d'un guide de lumière plat et dispositif d'éclairage - Google Patents

Procédé de production d'un guide de lumière plat et dispositif d'éclairage Download PDF

Info

Publication number
WO2022049195A1
WO2022049195A1 PCT/EP2021/074271 EP2021074271W WO2022049195A1 WO 2022049195 A1 WO2022049195 A1 WO 2022049195A1 EP 2021074271 W EP2021074271 W EP 2021074271W WO 2022049195 A1 WO2022049195 A1 WO 2022049195A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
flat light
fastening element
edge
flat
Prior art date
Application number
PCT/EP2021/074271
Other languages
German (de)
English (en)
Inventor
Stefan Gröne
Carsten Hohmann
Original Assignee
HELLA GmbH & Co. KGaA
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 HELLA GmbH & Co. KGaA filed Critical HELLA GmbH & Co. KGaA
Publication of WO2022049195A1 publication Critical patent/WO2022049195A1/fr

Links

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
    • F21S43/236—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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • 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
    • 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
    • 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
    • F21S43/27—Attachment thereof
    • 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
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • 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
    • G02B6/0011—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 planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/0011—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 planar or of plate-like form
    • G02B6/0066—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 planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Definitions

  • the invention relates to a method for producing a flat light guide, in which light is coupled in at a first edge of the flat light guide, the flat light guide being primary formed by extrusion.
  • the invention also relates to a lighting device for vehicles with a housing in which a light source unit for emitting light and an optics unit for generating a predetermined light distribution are arranged, the optics unit comprising a flat light guide with a first edge on which the light generated by the light source unit is coupled into the flat light guide, with flat sides on which the light coupled in is totally reflected in the light guidance direction and with a further second edge on which the light coupled in is coupled out, with a fastening element formed on the flat light guide for fastening the flat light guide to a holding part.
  • a lighting device for vehicles is known from DE 10 2011 016417 A1, which comprises a light-guiding element, on one side of which light is coupled in and on the opposite side of which the coupled-in light is coupled out. Fastening webs are formed on the light entry side of the light-guiding element, which interact with clips attached to the light-guiding element, so that the light-guiding element can be anchored to a holding part.
  • the light guide element is designed as an injection molded part, which requires relatively high tooling costs.
  • DE 10 2013212 352 A1 discloses a lighting device for vehicles with a housing in which a light source unit and an optical unit for generating a predetermined light distribution are arranged.
  • the optics unit comprises a flat light guide with flat sides running parallel to one another, on which the coupled-in light is totally reflected in the light-guiding direction.
  • the light source unit is arranged on a first edge of the flat light guide.
  • the flat light guide has optical structures tures to scatter the light.
  • the flat light guide is designed as an injection molded part.
  • the light source unit includes light sources that are arranged perpendicular to the direction of extension of the flat light guide.
  • the light generated by the light sources is coupled into the flat light guide via coupling optics, which can be produced, for example, by extrusion.
  • the known lighting device is relatively expensive.
  • DE 10 2008 028 497 A1 discloses a method for producing a flat light guide, into which light is coupled at a first edge of the flat light guide.
  • the flat light guide is made by extrusion.
  • the flat light guide is arranged in a frame so that no additional fastening elements have to be provided to hold the same.
  • the object of the present invention is to specify a method for producing a flat light guide and an illumination device, so that a flat light guide that can be securely locked on a holding part is produced in a cost-effective manner.
  • the invention is characterized with the preamble of patent claim 1, characterized in that after extrusion at least one edge of the flat light guide, in which the light is not coupled, a fastening element is formed by laser cutting or by milling, so that the flat light guide by means of the fastening element is fastened to a holding part.
  • a flat light guide can be inexpensively produced by means of two process steps.
  • the flat light guide is manufactured by extrusion.
  • the flat light guide is at least partially contoured, with a fastening element being formed by laser cutting or by milling will.
  • the fastening element serves to fasten the flat light guide to a holding part.
  • the flat light guide is reshaped after extrusion by thermoforming from a planar extension into an arcuate extension, so that the flat light guide can have a desired three-dimensional shape.
  • the flat light guide can be designed to follow the contour of an edge of a body section of the vehicle.
  • the flat light guide is provided with an optical structure on a further edge thereof by laser cutting or by milling.
  • the further edge can be a light-coupling and/or a light-coupling edge of the flat light guide.
  • an opening with optical structuring of the flat light guide at the edge can be created during the laser cutting or milling, so that the light guidance within the flat light guide is improved.
  • the invention in connection with the preamble of patent claim 5 is characterized in that the fastening element is formed on one of the edges of the flat light guide in the direction in which it extends, that the fastening element is held in a receptacle of a further fastening element, that the further fastening element is a contact surface thereof can be fixed to the holding part, the contact surface running perpendicular to the fastening element formed on the flat light guide.
  • the particular advantage of the lighting device according to the invention is that in the mounted state the flat light guide can be arranged fixed to a holding part in an extension perpendicular to the same, with a fastening element formed on the flat light guide protruding in the direction of extension of the flat light guide.
  • the flat light guide can advantageously be produced in a cost-effective manner by extrusion.
  • the fastening element can also be formed inexpensively, preferably by laser cutting or milling.
  • the basic idea of the invention is to provide a further fastening element so that the fastening takes place in two directions of force perpendicular to one another.
  • the attachment can thus take place positively and/or non-positively between the fastening element of the flat light guide and the further fastening element on the one hand and between the further fastening element and the holding part on the other hand.
  • the fastening element integrally connected to the flat light guide extends from a further edge of the flat light guide, which is not used for coupling light in or out, protruding from the flat light guide in an extension of the extension direction of the flat light guide.
  • the length of the fastening element is dimensioned in such a way that, in connection with the further fastening element, a secure connection with the holding part is ensured.
  • the fastening element connected in one piece to the flat light guide is designed as a web whose opposite land surfaces run in a common plane with flat sides of the section of the flat conductor from which the fastening element protrudes.
  • the fastening element can advantageously be produced simply by milling or laser cutting after extrusion.
  • the fastening element which is connected in one piece to the flat light guide, has a bore, the axis of which is perpendicular to the opposing web surfaces or perpendicular to the direction of extension of the Flat conductor runs.
  • the hole can be brought into an aligned mounting position to the holes of the other fastening element, so that a non-positive connection is ensured by screwing with the other fastening element.
  • a receptacle for the further fastening element can be designed as a slot, into which the fastening element, which is connected in one piece to the flat light guide, engages. If the receptacle has additional bores, a non-positive connection can take place between the fastening element, which is integrally connected to the flat light guide, and the further fastening element. If the slot has resilient or latching receiving walls, the fastening element that is firmly connected to the flat light guide can also be positively connected to the further fastening element.
  • FIG. 1 is a front view of the lighting device, with a flat light guide of the lighting device being locked to a holding part by means of fastening elements,
  • Fig. 3 is an enlarged view of the attachment between the flat light guide and another attachment element and 4 shows a sectional view of the fastening between the further fastening part and the holding part.
  • a lighting device according to the invention for vehicles can be arranged in a housing of a headlight or a signal light.
  • the signal lamp can be located in the front or rear area of the vehicle.
  • the lighting device includes a light source unit having a plurality of light sources.
  • the light sources are preferably in the form of LED light sources and are arranged on a common carrier (not shown).
  • the light source unit is arranged together with the light sources arranged in a row along a first edge 1 of a flat light guide 2 forming an optical unit.
  • the flat light guide 2 is elongate and has the first edge 1 on a light entry side, on which the light sources are arranged next to one another in a contour-following manner at a small distance from it.
  • the first edge 1 forms a narrow side of the flat light guide 2 at which light emitted by the light sources is coupled into the flat light guide 2 .
  • Two parallel flat sides 4 of the flat light guide 2 extend from the first edge 1 in the light guiding direction 5 of the flat light guide 2 and are designed to be relatively large compared to the first edge 1 .
  • the flat sides 4 are used for total reflection of the coupled-in light in the direction of the light guidance direction 5, so that the coupled-in light can be coupled out at a second edge 6 of the flat light guide 2, opposite the first edge 1, to generate the specified light distribution, for example daytime running lights, taillights or brake lights.
  • a fastening element 8 which is integrally connected to the flat light guide 2 , is formed on opposite third edges 7 arranged on the front side of the flat light guide 2 .
  • the fastening element 8 runs in the direction of extension of an end section 9 of the flat light guide 2 that has the third edge 7, so that the fastening element 8 extends from the third edge 7 of the Flat light guide 2 protrudes.
  • the fastening element 8 is designed as a web which has opposite web surfaces 10 which run as an extension of the flat sides 4 of the flat light guide 2 .
  • the fastening element 8 has a bore 11 which, in a mounting position, is aligned with bores 12 of a further fastening element 13 .
  • the further fastening element 13 which can be produced, for example, by injection molding, has a slot-shaped receptacle 14 for connection to the fastening element 8, into which the fastening element 8, which is connected in one piece to the flat light guide 2, can be inserted.
  • a screw 15 can be used to create a non-positive screw connection between the flat light guide 2 and the further fastening element 13 .
  • the slot-shaped receptacle 14 can also have flexible or snap-in walls, so that the connection between the fastening element 8 of the flat light guide 2 and the further fastening element 13 can be made in a form-fitting manner.
  • the further fastening element 13 has a contact surface 16 which lies flat against a holding part 3 in the assembly position. As can be seen from Figure 3, the contact surface 16 runs perpendicular to the fastening element 8 of the flat light guide 2 or perpendicular to the plane of extension of the flat light guide 2. An axis A of the bores 11, 12 of the fastening elements 8, 13 runs offset parallel to the contact surface 16 and perpendicular to the web surface 10 of the fastening element 8.
  • the contact surface 16 has a bore 17, so that the further fastening element 13 can be connected to the holding part 3 in a non-positive manner by means of a screw connection.
  • Fastening element 13 has the same protruding perpendicularly from the contact surface 16 de support walls 18, which are perpendicular to the contact surface 16 and perpendicular to walls 19 of the slot-shaped receptacle 14.
  • the support walls 18 extend from the walls 19 of the slot-shaped receptacle 14 to a free edge 20 of the contact surface 16.
  • the holding part 3 is made of a flat, opaque material with a slot-shaped opening in which the flat light guide 2 is fixed via the fastening elements 8 , 13 .
  • the light-coupling edge 1 of the flat light guide 2 runs on a first side of the holding part 3 and the light-coupling second edge 6 on a second side of the holding part 3.
  • the holding part 3 is designed as a screen which is not on a shown housing of the lighting device is attached and prevents the light source unit from being visible from the outside.
  • the flat light guide 2 it is produced or formed in a first process step by extrusion. After the end of the first process step, the flat light guide 2 runs in a single plane.
  • the flat light guide 2 is to follow the contours of an edge of the housing in which the lighting device is arranged, i.e. running three-dimensionally along an arc in the present exemplary embodiment, the flat light guide 2 is bent or shaped in a second process step by thermoforming.
  • the shaping of the fastening element 8 and the shaping of an optical structuring of the flat light guide 2 takes place by milling or laser cutting.
  • the optical structuring can be produced, for example, on the second edge 6 of the Are made flat light guide 2, with cylinder jacket section-shaped optical elements are formed to scatter the light.
  • a breakthrough 21 in a Section of the flat light guide 2 are cut with optical structuring at the edge, this opening 21 being arranged as an air lens at a predetermined distance from the light-coupling first edge 1 of the flat light guide 2 .
  • This breakthrough 21 can include, for example, a Fresnel lens 22, which is used to parallelize the coupled light.
  • the flat light guide 2 is fastened at its front ends by means of the further fastening element 13 described.
  • the flat light guide 2 is fastened in a central region thereof, with the opposite flat sides 4 of the flat light guide 2 being held by means of clamping elements 23 which can be firmly connected to the holding part 3.

Abstract

L'invention concerne un procédé de production d'un guide de lumière plat (2), une lumière étant introduite au niveau d'un premier bord (1) du guide de lumière plat (2), le guide de lumière plat (2) étant principalement mis en forme par extrusion et, après extrusion, un élément de fixation (8) étant découpé par découpe au laser ou par fraisage au niveau d'au moins un bord (7) du guide de lumière plat (2) au niveau duquel la lumière n'est pas entrée, de sorte que le guide de lumière plat (2) soit fixé à une partie de maintien (3) au moyen de l'élément de fixation (8).
PCT/EP2021/074271 2020-09-03 2021-09-02 Procédé de production d'un guide de lumière plat et dispositif d'éclairage WO2022049195A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020123036.2 2020-09-03
DE102020123036 2020-09-03
DE102020126944.7A DE102020126944A1 (de) 2020-09-03 2020-10-14 Verfahren zum Herstellen eines Flachlichtleiters und Beleuchtungsvorrichtung
DE102020126944.7 2020-10-14

Publications (1)

Publication Number Publication Date
WO2022049195A1 true WO2022049195A1 (fr) 2022-03-10

Family

ID=80221500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/074271 WO2022049195A1 (fr) 2020-09-03 2021-09-02 Procédé de production d'un guide de lumière plat et dispositif d'éclairage

Country Status (2)

Country Link
DE (1) DE102020126944A1 (fr)
WO (1) WO2022049195A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022121128A1 (de) * 2022-08-22 2024-02-22 Schott Ag Vorrichtung zur Lichtapplikation

Citations (12)

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DE102008028497A1 (de) 2007-06-25 2009-01-15 Hans-Thomas Hansen Vorrichtung zur beleuchteten Präsentation
EP2169296A1 (fr) * 2008-09-25 2010-03-31 Valeo Vision Dispositif d'éclairage comportant une nappe de guidage
EP2317214A1 (fr) * 2009-11-02 2011-05-04 Valeo Vision Dispositif d'éclairage ou de signalisation pour véhicule automobile comprenant un guide de lumière
DE102011016417A1 (de) 2011-04-08 2012-10-11 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Leuchtendes Formteil, insbesondere Dekorteil und/oder Verkleidungsteil für einen Fahrzeuginnenraum
JP2014167879A (ja) * 2013-02-28 2014-09-11 Koito Mfg Co Ltd 車両用灯具
DE102013212352A1 (de) 2013-06-26 2014-12-31 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung mit einer Einkoppeloptik und einer Transport- und Umformoptik
JP2016178059A (ja) * 2015-03-23 2016-10-06 トヨタ自動車東日本株式会社 車両用灯具
WO2017068309A1 (fr) * 2015-10-23 2017-04-27 Automotive Lighting Rear Lamps France Dispositif d'éclairage et/ou de signalisation compact pour véhicule
JP2017195134A (ja) * 2016-04-22 2017-10-26 株式会社小糸製作所 車両用灯具
WO2019003087A1 (fr) * 2017-06-27 2019-01-03 3M Innovative Properties Company Guide de lumière unitaire
EP3499116A1 (fr) * 2017-12-12 2019-06-19 Hyundai Motor Company Lentille complexe d'étalement de la lumière
JP2019200937A (ja) * 2018-05-17 2019-11-21 スタンレー電気株式会社 車両用灯具

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Publication number Priority date Publication date Assignee Title
FR2967235B1 (fr) 2010-11-05 2014-10-31 Valeo Vision Dispositif d'eclairage ou de signalisation, pour vehicule automobile, comportant une nappe de guidage de lumiere.
DE102013108344B4 (de) 2013-08-02 2021-08-19 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für Fahrzeuge
WO2017119849A1 (fr) 2016-01-04 2017-07-13 Mas Innovation (Private) Limited Guide de lumière
US10730430B2 (en) 2017-01-06 2020-08-04 Ford Global Technologies, Llc Sidemarker light assembly and motor vehicle light assembly incorporating that sidemarker light assembly

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028497A1 (de) 2007-06-25 2009-01-15 Hans-Thomas Hansen Vorrichtung zur beleuchteten Präsentation
EP2169296A1 (fr) * 2008-09-25 2010-03-31 Valeo Vision Dispositif d'éclairage comportant une nappe de guidage
EP2317214A1 (fr) * 2009-11-02 2011-05-04 Valeo Vision Dispositif d'éclairage ou de signalisation pour véhicule automobile comprenant un guide de lumière
DE102011016417A1 (de) 2011-04-08 2012-10-11 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Leuchtendes Formteil, insbesondere Dekorteil und/oder Verkleidungsteil für einen Fahrzeuginnenraum
JP2014167879A (ja) * 2013-02-28 2014-09-11 Koito Mfg Co Ltd 車両用灯具
DE102013212352A1 (de) 2013-06-26 2014-12-31 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung mit einer Einkoppeloptik und einer Transport- und Umformoptik
JP2016178059A (ja) * 2015-03-23 2016-10-06 トヨタ自動車東日本株式会社 車両用灯具
WO2017068309A1 (fr) * 2015-10-23 2017-04-27 Automotive Lighting Rear Lamps France Dispositif d'éclairage et/ou de signalisation compact pour véhicule
JP2017195134A (ja) * 2016-04-22 2017-10-26 株式会社小糸製作所 車両用灯具
WO2019003087A1 (fr) * 2017-06-27 2019-01-03 3M Innovative Properties Company Guide de lumière unitaire
EP3499116A1 (fr) * 2017-12-12 2019-06-19 Hyundai Motor Company Lentille complexe d'étalement de la lumière
JP2019200937A (ja) * 2018-05-17 2019-11-21 スタンレー電気株式会社 車両用灯具

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