EP3982037B1 - Dispositif d'éclairage de véhicule automobile pourvu d'au moins un module lumineux de microprojection et son procédé de fabrication - Google Patents

Dispositif d'éclairage de véhicule automobile pourvu d'au moins un module lumineux de microprojection et son procédé de fabrication Download PDF

Info

Publication number
EP3982037B1
EP3982037B1 EP21201366.8A EP21201366A EP3982037B1 EP 3982037 B1 EP3982037 B1 EP 3982037B1 EP 21201366 A EP21201366 A EP 21201366A EP 3982037 B1 EP3982037 B1 EP 3982037B1
Authority
EP
European Patent Office
Prior art keywords
light
microprojection
motor vehicle
lighting device
microprojectors
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.)
Active
Application number
EP21201366.8A
Other languages
German (de)
English (en)
Other versions
EP3982037A1 (fr
Inventor
Felix Freytag
Dr. Sebastian Schildmann
Tobias Leuz
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.)
Marelli Automotive Lighting Reutlingen Germany GmbH
Original Assignee
Marelli Automotive Lighting Reutlingen Germany 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 Marelli Automotive Lighting Reutlingen Germany GmbH filed Critical Marelli Automotive Lighting Reutlingen Germany GmbH
Publication of EP3982037A1 publication Critical patent/EP3982037A1/fr
Application granted granted Critical
Publication of EP3982037B1 publication Critical patent/EP3982037B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • 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
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21S41/25—Projection lenses
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof

Definitions

  • the present invention relates to a motor vehicle lighting device with the features of the preamble of claim 1.
  • the invention relates to a method for producing such a motor vehicle lighting device.
  • Such a motor vehicle lighting device and such a method are from EP 3 633 262 A1 known.
  • a projector consisting of a large number of microprojectors has proven to be suitable.
  • Such a projector is part of a motor vehicle headlight DE 10 2017 112 971 A1 and the WO2019/120900A1 known.
  • Such projectors work with very short focal lengths and therefore require very little installation space.
  • micro-projection light modules are particularly interesting, which function according to the so-called fly's eye principle. These projectors can homogenize a non-homogeneous light distribution, which is desirable for many image projections (cf. DE 10 2017 217 345B4 , DE 10 2006 047 941 A1 ).
  • the object of the invention is to provide a motor vehicle lighting device of the type mentioned at the beginning Specify a type that enables tolerance-insensitive image projections with micro-projection light modules with a small overall depth without costly processes and without complex readjustment of the lenses to one another.
  • a further object is to provide a method for producing such a motor vehicle lighting device.
  • the motor vehicle lighting device is characterized in that the diaphragm layer is arranged directly on the light entrance surface and adheres to the entrance lens surface.
  • the aperture layer allows the aperture layer to be individually designed after the micro-projection optics have been manufactured. Applying the diaphragm layer only after the micro-projection optics have been manufactured makes high-precision and therefore expensive processes, which are required in the prior art for positioning diaphragms between the light entry surface and the lens exit surface, unnecessary. The positioning can take place, for example, when injection molding the micro-projection optics directly after the injection molding step has been completed. It is also advantageous that the same micro-projection optics have different apertures can be provided, which makes them predestined for use in a wide variety of motor vehicle lighting devices, be it headlights or signal lights, and for a wide variety of applications. In this way, the number of identical parts that can be used in different motor vehicle lighting devices is increased, which advantageously reduces costs.
  • the cover can be applied, for example, by metallization or painting. This has the advantage that due to the small thickness of the layer, the entire aperture can be imaged sharply and no light components are reflected through an extended metallic aperture implemented as an insert (cf. DE102016112617B3 or WO2015/058227A1 ) are blocked.
  • the contour and position of the translucent areas of the diaphragm layer can be changed more easily after the manufacturing process of the micro-projection optics, since the diaphragm is not permanently installed in the micro-projection optics.
  • a preferred embodiment is characterized in that the aperture layer has a translucent portion and an almost opaque portion.
  • An opaque sub-area is understood to be a sub-area whose transmission is less than 1%.
  • the light entry surface is an entrance lens surface, and the focal lengths of the entrance lens surface and the exit lens surface are almost identical.
  • the distance between the exit surface of a microprojector and the entrance surface of the microprojector corresponds almost to the focal length of the entrance lens surface or the exit lens surface.
  • the microprojection optical element is a one-piece, cohesively connected element.
  • this results in precise positioning of the light entry surface with the aperture layer to the lens exit surface, so to speak, automatically and without the need for further positioning measures.
  • a total light entry surface of the microprojection optical element formed by the sum of the light entry surfaces of the microprojectors forms a central, inner region of the microprojection optical element, which is surrounded by an outer edge region that is opaque. Due to the opacity of the outer edge area, the attachment optics Outgoing light from the light source is prevented from getting past the side edges of the micro-projection optics and impairing the desired light distribution as unwanted scattered light.
  • micro-projection light modules are arranged next to one another transversely to their optical axes.
  • the micro-projection light modules can in particular be arranged following the shape of the lighting device, which fits into a motor vehicle body.
  • an animation effect for example a running light effect
  • a further preferred embodiment is characterized in that the micro-projection light modules arranged next to one another differ in their focal length, the number of their micro-projectors and their aperture shape and/or their aperture size of their micro-projection optical elements. In this way, the light distribution to be generated by the motor vehicle lighting device can be determined during the design by appropriately selecting the parameters mentioned.
  • micro-projection optical elements arranged next to one another are parts of a one-piece material bond coherent arrangement of micro-projection optical elements. It is further preferred that attachment optics arranged next to one another are parts of a one-piece, cohesively connected arrangement of attachment optics. These two configurations also have the advantage of no need for positioning measures.
  • a further preferred embodiment is characterized in that each of the microprojectors has an optical axis, with at least most of the microprojectors being arranged in such a way that their optical axes run parallel to one another and that at least two of the most microprojectors have entrance lens surfaces arranged offset from one another along their optical axes and/or or have exit lens surfaces.
  • the height and width of the light entry surfaces and the exit lens surfaces of the microprojectors are not all the same. With the same shape and size of the translucent areas of the aperture layer, it is possible to vary the light intensity in the projected image.
  • Light entry surfaces are flat surfaces and therefore not realized as concentrating light entry lens surfaces. This allows tolerances between light entry surfaces and exit lens surfaces to be reduced.
  • a preferred embodiment of the method is characterized in that in a first step the micro-projection optical element with its light entry surface and its light exit surface is produced, that in a second step the light entry surface of the microprojectors is coated with a metal layer or lacquer layer and that in a third step Translucent areas can be exposed by laser ablation.
  • the diaphragm layer is only applied after injection molding, high-precision and therefore expensive processes that are otherwise required for positioning a diaphragm component between the light entry surface and the lens exit are unnecessary.
  • the application of the aperture layer and the positioning of the translucent areas can take place directly after the injection molding step has been completed. It is also advantageous that the same micro-projection optics can be provided with different apertures, which makes them ideal for use in a wide variety of headlights and for a wide variety of applications. In this way, the number of identical parts that can be used in different headlights is increased, which advantageously reduces costs. It is also advantageous that the contour and position of the translucent areas of the aperture layer of the image can be changed more easily after the manufacturing process of the micro-projection optics, since the aperture is not permanently installed in the micro-projection optics.
  • Figure 1 a sectional view of a motor vehicle lighting device 10 with a housing, the light exit opening of which is covered by a transparent cover plate 14.
  • a micro-projection light module 16 is arranged in the interior of the housing 12 and has a light source 18, an optical attachment 20 and a micro-projection optical element 22.
  • the light source 18 is preferably a semiconductor light source with which light 19 can be emitted in the direction of the attachment optics 10.
  • FIG 2 shows a perspective view of the micro-projection light module 16 from the Figure 1 .
  • the microprojection light module 16 has a plurality of microprojectors 28 arranged in rows 24 and columns 26.
  • FIG. 3 shows a longitudinal section through a single microprojector 28 of the microprojection light module.
  • Each individual microprojector 28 has a light entry surface 30, a diaphragm layer 32 and an exit lens surface 34.
  • the aperture layer 32 is arranged directly on the light entry surface 30 and adhering to the light entry surface 30.
  • the aperture layer 32 has a translucent portion 36 and an almost opaque portion 38.
  • the light entry surface 30 is in the Figure 3
  • Microprojector 28 shown has an entrance lens surface that is convexly curved.
  • the exit lens surface 34 is also a convexly curved lens surface.
  • the microprojector-side focal lengths of the entrance lens surface and the exit lens surface 34 are almost identical, which here means that the smaller of the two focal lengths is greater than 90% of the larger of the two focal lengths, in particular greater than 95% of the larger of the two focal lengths.
  • the light entry surfaces 30 of the microprojectors 28 can also be implemented as flat surfaces in a simplified embodiment.
  • the distance of the exit lens surface 34 from the light entry surface 30 of the microprojector 28 corresponds almost to the focal length of the exit lens surface 34, which here also means that the smaller of the two lengths (distance, focal length) is greater than 90% of the larger of the two lengths, in particular greater than 95% of the larger of both lengths. Due to this constellation, the starting lens surface sharply images the pattern of opaque partial area 38 and light-transmissive partial area 36.
  • the light from the light source is almost collimated by the attachment optics (e.g. TIR optics or converging lenses) and illuminates the micro-projection optics, which projects the light onto the road.
  • the attachment optics e.g. TIR optics or converging lenses
  • the almost collimated light that hits the micro-projection optics is reflected, scattered and/or completely or partially absorbed by the opaque portions of the aperture.
  • Light passing through the translucent portions of the aperture is focused by the entrance lens surface onto the exit lens surface and projected onto the road.
  • the patterns of all microprojectors are projected into the same solid angle or into the same spatial area and are superimposed there to create the desired light distribution.
  • the intensity at a point in the light distribution is the sum of the intensities generated by each microprojector generated at this point.
  • Figure 4 shows a top view of the entire light entry surface 40 of a microprojection optical element 22, the light entry surface 40 not yet being covered with the aperture layer.
  • Figure 4 shows in particular that the micro-projection optical element 22 is a one-piece, cohesively connected element which has light entry lenses which, so to speak, touch one another directly and therefore adjoin one another without any distance. This applies to all exemplary embodiments.
  • the sum of the light entry surfaces of the microprojectors forms a total light entry area of the microprojection optical element 22.
  • Figure 5 shows a top view of a micro-projection optical element, in which the total light entry area of the micro-projection optical element 22 formed by the sum of the light entry surfaces of the microprojectors 28 forms a central area of the micro-projection optical element 22, which is formed by a outer edge region 42 is surrounded, which is opaque.
  • the opacity can arise, for example, as a result of covering the edge region 42 with an opaque layer.
  • Figure 6 shows an arrangement of several micro-projection light modules 16, each of which has an optical axis 44 and which are arranged next to one another without any distance.
  • the optical axis 44 of a microprojection light module 16 is parallel to the optical axes of its microprojectors 28.
  • At least most of the microprojectors 28 of the entire arrangement are arranged so that their optical axes run parallel to one another and that at least two of most microprojectors 28 run along their optical axes have entrance lens surfaces and/or exit lens surfaces arranged offset from one another.
  • microprojection light modules 16 arranged next to one another can differ from one another in the number of their microprojectors, their focal length, and the aperture shape and/or aperture size of their microprojection optical elements.
  • the micro-projection optical elements 22 arranged next to one another are parts of a one-piece, cohesively connected arrangement 46 of micro-projection optical elements 22.
  • the attachment optics 20, which are each associated with the micro-projection optics 22 and are arranged next to one another, are parts of a one-piece, cohesively connected arrangement 48 of attachment optics 20.
  • microprojectors do not necessarily have to be arranged in a cuboid shape. It can be advantageous to arrange the microprojectors on a curved surface. It can be advantageous to use several additional lenses and light sources. The number of microprojectors per line, the height or the focal length of the lens can also vary spatially with this design.
  • Figure 7 shows the arrangement from the Figure 6 from the beginning.
  • Figure 8 shows a side view of one of the arrangements from the Figures 6 and 7 comparable arrangement.
  • Figure 9 illustrates a method for producing a motor vehicle lighting device according to the invention.
  • the method is characterized in particular by the fact that the diaphragm layer 32 is produced as a diaphragm layer 32 which adheres directly to the light entry surface 30 and to the entrance lens surface.
  • the micro-projection optical element 22 is produced with its light entry surface 40 and its light exit surface.
  • the production takes place, for example, by injection molding.
  • the entire light entry surface 40 is covered Microprojectors, i.e. the microprojection optical element 22 with a diaphragm layer 32.
  • the diaphragm layer 32 is therefore initially a coherent layer that covers the entire light entry surface 40.
  • the material thickness of the aperture layer is so great that the aperture layer is almost opaque (transmission less than 1%).
  • the aperture layer is preferably a metal layer or a lacquer layer. If the microprojection optical element 22 has an edge region 42 surrounding the central region in addition to the central region, this is preferably also covered with the opaque layer and thereby becomes opaque.
  • the translucent partial areas 36 are exposed by ablation using a laser.
  • lithographic methods and etching techniques can also be used to produce the pattern of translucent portions of the aperture layer required to produce a desired light distribution.
  • laser ablation is more precise and much more flexible in terms of changing the pattern than etching techniques, since such a change only requires reprogramming of the laser beam controller.
  • Figure 10 shows a micro-projection optical element after the injection molding step with the light entry surface not yet coated.
  • Figure 11 shows the micro-projection optical element after the coating in the second step and the exposure in the third step as desired translucent areas 36.
  • the translucent partial areas can be created by selectively applying the opaque partial areas (e.g. with a mask, pad printing).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Claims (11)

  1. Dispositif d'éclairage de véhicule (10) comportant au moins un module de lumière de micro-projection (16) qui comprend une source de lumière (18), une optique additionnelle (20) et un élément optique de micro-projection (22) qui comprend une pluralité de micro-projecteurs (28) agencés en lignes (24) et en colonnes (26), dont chacun comprend une surface d'entrée de lumière (30), une couche de diaphragme (32) et une surface de lentille de sortie (34), la surface d'entrée de lumière (30) étant une surface de lentille d'entrée convexe, et la lumière de la source de lumière étant approximativement collimatée par l'optique additionnelle et éclairant l'élément optique de micro-projection, lequel élément optique de micro-projection étant configuré pour projeter de la lumière sur la rue, caractérisé en ce que l'élément optique de micro-projection (22) est un élément en une seule pièce associé par adhésion par matière, en ce que la couche de diaphragme (32) est agencée directement sur la surface d'entrée de lumière (30) et de façon adhérente à la surface d'entrée de lumière (30), la distance de la surface de lentille de sortie (34) d'un micro-projecteur (28) à partir de la surface d'entrée de lumière (30) du micro-projecteur (28) correspondant approximativement à la distance focale de la surface de lentille de sortie (34), en ce que la surface d'entrée de lumière (30) est une surface de lentille d'entrée et en ce que les distances focales de la surface de lentille d'entrée et de la surface de lentille de sortie (34) sont approximativement identiques.
  2. Dispositif d'éclairage de véhicule automobile (10) selon la revendication 1, caractérisé en ce que la couche de diaphragme (32) comprend une zone partielle translucide (36) et une zone partielle quasi opaque (38).
  3. Dispositif d'éclairage de véhicule automobile (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une surface d'entrée de lumière totale (40) de l'élément optique de micro-projection (22) formée par la somme des surfaces d'entrée de lumière (30) des micro-projecteurs (28) forme une zone centrale de l'élément optique de micro-projection (22) qui est entourée d'une zone de bord externe (42) qui est opaque.
  4. Dispositif d'éclairage de véhicule automobile (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que plusieurs modules de lumière de micro-projection (16) sont agencés les uns à côté des autres transversalement à leurs axes optiques (44).
  5. Dispositif d'éclairage de véhicule automobile (10) selon la revendication 4, caractérisé en ce que les modules de lumière de micro-projection (16) agencés les uns à côté des autres diffèrent par leur distance focale, le nombre de leurs micro-projecteurs (28) et leur forme de diaphragme et/ou leur taille de diaphragme de leurs éléments optiques de micro-projection (22).
  6. Dispositif d'éclairage de véhicule automobile (10) selon la revendication 5, caractérisé en ce que les éléments optiques de micro-projection (22) agencés les uns à côté des autres font partie d'un agencement (46) en une seule pièce associé par adhésion par matière d'éléments optiques de micro-projection (22).
  7. Dispositif d'éclairage de véhicule automobile (10) selon la revendication 5 ou 6, caractérisé en ce que les optiques additionnelles (20) agencées les unes à côté des autres font partie d'un agencement (48) en une seule pièce associé par adhésion par matière d'optiques additionnelles (20).
  8. Dispositif d'éclairage de véhicule automobile (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que chacun des micro-projecteurs (28) comprend un axe optique, au moins la plupart des micro-projecteurs (28) étant disposés de manière à ce que leurs axes optiques soient parallèles les uns par rapport aux autres, et en ce qu'au moins deux de ladite plupart des micro-projecteurs (28) comprennent des surfaces de lentille d'entrée et/ou des surfaces de lentille de sortie (34) agencées de façon décalée les uns par rapport aux autres le long de leurs axes optiques.
  9. Dispositif d'éclairage de véhicule automobile (10) selon l'une des revendications précédentes, caractérisé en ce que la hauteur et la largeur des surfaces d'entrée de lumière (30) et des surfaces de lentille de sortie (34) des micro-projecteurs (28) ne sont pas toutes identiques.
  10. Procédé de réalisation d'un dispositif d'éclairage de véhicule automobile (10) ayant les caractéristiques de la revendication 1, qui comporte au moins un module de lumière de micro-projection (16) qui comprend une source de lumière (18), une optique additionnelle (20) et un élément optique de micro-projection (22) qui comporte une pluralité de micro-projecteurs (22) agencés en lignes (24) et en colonnes (26), dont chacun comprend une surface d'entrée de lumière (30), une couche de diaphragme (32) et une surface de lentille de sortie (34), caractérisé en ce que l'élément optique de micro-projection (22) est produit par une étape de moulage par injection sous la forme d'un élément en une seule pièce associé par adhésion par matière et en ce que la couche de diaphragme (32) est réalisée sous la forme d'une couche de diaphragme (32) adhérant directement sur la surface d'entrée de lumière (30).
  11. Procédé selon la revendication 10, caractérisé en ce que l'élément optique de micro-projection (22) est réalisé d'abord dans une première étape (50) avec ses surfaces d'entrée de lumière (30) et ses surfaces de lentille de sortie (34), en ce que dans une deuxième étape (52), les surfaces d'entrée de lumière (30) des micro-projecteurs (28) sont recouvertes d'une couche métallique ou d'une couche de laque, et en ce que dans une troisième étape (54), les zones translucides (36) sont dégagées par ablation survenant à l'aide d'un laser.
EP21201366.8A 2020-10-09 2021-10-07 Dispositif d'éclairage de véhicule automobile pourvu d'au moins un module lumineux de microprojection et son procédé de fabrication Active EP3982037B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020126592.1A DE102020126592A1 (de) 2020-10-09 2020-10-09 Kraftfahrzeugbeleuchtungseinrichtung mit wenigstens einem Mikroprojektionslichtmodul und Verfahren zu seiner Herstellung

Publications (2)

Publication Number Publication Date
EP3982037A1 EP3982037A1 (fr) 2022-04-13
EP3982037B1 true EP3982037B1 (fr) 2024-01-10

Family

ID=78085810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21201366.8A Active EP3982037B1 (fr) 2020-10-09 2021-10-07 Dispositif d'éclairage de véhicule automobile pourvu d'au moins un module lumineux de microprojection et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP3982037B1 (fr)
CN (1) CN114321832A (fr)
DE (1) DE102020126592A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021103908U1 (de) * 2020-08-13 2021-08-06 Sl Corporation Leuchte für ein Fahrzeug

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006047941B4 (de) 2006-10-10 2008-10-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Homogenisierung von Strahlung mit nicht regelmäßigen Mikrolinsenarrays
EP2989375B1 (fr) * 2013-03-12 2019-12-11 Seoul Semiconductor Co., Ltd. Luminaire mince
AT514967B1 (de) 2013-10-25 2015-08-15 Zizala Lichtsysteme Gmbh Mikroprojektions-Lichtmodul für einen Kraftfahrzeugscheinwerfer
DE102016112617B3 (de) 2016-07-08 2017-10-26 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer mit geringer Bautiefe
AT518905B1 (de) 2016-07-29 2018-04-15 Zkw Group Gmbh Projektionseinrichtung für einen Kraftfahrzeugscheinwerfer und Verfahren zu seiner Herstellung
DE102016119880A1 (de) * 2016-10-19 2018-04-19 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für Fahrzeuge
DE102017112971A1 (de) 2017-06-13 2018-12-13 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer mit wenigstens zwei Ausgangsteillinsen aufweisenden Mikroprojektionsmodulen
DE102017217345B4 (de) 2017-09-28 2019-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optischer Strahlformer
EP3502554A1 (fr) 2017-12-20 2019-06-26 ZKW Group GmbH Dispositif de projection pour un projecteur de véhicule automobile et procédé de fabrication d'un dispositif de projection
EP3633262A1 (fr) * 2018-10-04 2020-04-08 ZKW Group GmbH Dispositif de projection pour un module de phare de véhicule automobile et procédé de fabrication d'un dispositif de projection

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021103908U1 (de) * 2020-08-13 2021-08-06 Sl Corporation Leuchte für ein Fahrzeug

Also Published As

Publication number Publication date
EP3982037A1 (fr) 2022-04-13
DE102020126592A1 (de) 2022-04-14
CN114321832A (zh) 2022-04-12

Similar Documents

Publication Publication Date Title
EP2799761B1 (fr) Module d'éclairage de phare de véhicule automobile
DE202009009763U1 (de) Optische LED-Linse und Beleuchtungsvorrichtung derselben
DE102016125887A1 (de) Lichtmodul für Kraftfahrzeugscheinwerfer
DE19807153A1 (de) Scheinwerfer für Fahrzeuge nach dem Projektionsprinzip
EP3282181A1 (fr) Lentille micro-optique sur verre présentant un conception de protection et procédé de fabrication
EP3833903B1 (fr) Module d'éclairage de phare de véhicule automobile avec un grand nombre de systèmes micro-optiques
WO2019211120A1 (fr) Projecteur
EP3372890B1 (fr) Module de phare de véhicule automobile
DE112019005799T5 (de) Optisches Element einer Fahrzeugleuchte, Fahrzeugleuchtenmodul, Fahrzeug-Scheinwerfer und Fahrzeug
DE19537838A1 (de) Scheinwerfer für Fahrzeuge
EP1742168A1 (fr) Senseur opto-électronique
WO2021151711A1 (fr) Dispositif d'éclairage pour véhicule, en particulier un phare
DE102008010028A1 (de) Projektionsscheinwerfer für Fahrzeuge
DE102009054888A1 (de) Optisches Element mit einer Mehrzahl von refletiven Facettenelementen
EP2500630B1 (fr) Optique transparente ou lentille d'un dispositif d'éclairage d'un véhicule automobile
EP3982037B1 (fr) Dispositif d'éclairage de véhicule automobile pourvu d'au moins un module lumineux de microprojection et son procédé de fabrication
DE60034085T2 (de) Kraftfahrzeug-Scheinwerfer zur Erzeugung von zwei verschiedenen Lichtstrahlen mit einer einzigen Lichtquelle
WO2012150121A1 (fr) Dispositif émetteur de rayonnement et utilisation d'un tel dispositif
DE102019201403A1 (de) Optikeinheit und verfahren zu deren herstellung
DE102021116638B4 (de) Verfahren und Vorrichtung zur Bearbeitung eines optischen Bauteils für eine Beleuchtungseinrichtung eines Fahrzeugs
DE102020127218B4 (de) Reflektorbauteil für eine Kraftfahrzeugbeleuchtungseinrichtung
EP3870894B1 (fr) Unité d'éclairage pour un phare de véhicule automobile
DE10141219A1 (de) Scheinwerfer
EP3070395A1 (fr) Module lumineux de projection pour un phare de véhicule automobile
EP1672272A2 (fr) Projecteur de véhicule

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220705

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F21S 41/265 20180101ALI20230706BHEP

Ipc: F21S 41/143 20180101ALI20230706BHEP

Ipc: F21S 41/275 20180101ALI20230706BHEP

Ipc: F21S 41/47 20180101AFI20230706BHEP

INTG Intention to grant announced

Effective date: 20230726

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20231206

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502021002415

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20240110