EP3789658A1 - Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer - Google Patents

Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer Download PDF

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Publication number
EP3789658A1
EP3789658A1 EP19195885.9A EP19195885A EP3789658A1 EP 3789658 A1 EP3789658 A1 EP 3789658A1 EP 19195885 A EP19195885 A EP 19195885A EP 3789658 A1 EP3789658 A1 EP 3789658A1
Authority
EP
European Patent Office
Prior art keywords
light
optical element
lighting
collimator
lighting device
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Withdrawn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
EP19195885.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Matthias Kemetmüller
Alexander Strohmüller
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.)
ZKW Group GmbH
Original Assignee
ZKW Group 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 ZKW Group GmbH filed Critical ZKW Group GmbH
Priority to EP19195885.9A priority Critical patent/EP3789658A1/de
Priority to JP2022514829A priority patent/JP7241241B2/ja
Priority to PCT/EP2020/072517 priority patent/WO2021043544A1/de
Priority to EP20753367.0A priority patent/EP4025827B1/de
Priority to CN202080062086.4A priority patent/CN114286914B/zh
Priority to US17/639,421 priority patent/US11796148B2/en
Priority to KR1020227007358A priority patent/KR20220037519A/ko
Publication of EP3789658A1 publication Critical patent/EP3789658A1/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Withdrawn legal-status Critical Current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
    • 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
    • F21S41/275—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • 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
    • F21S43/20—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
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F21S43/315—Optical layout thereof using total internal reflection
    • 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
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/55—Daytime running lights [DRL]

Definitions

  • the invention also relates to a lighting system.
  • Numerous lighting devices for motor vehicle headlights are known from the prior art. Disadvantageously, lighting devices in which light is emitted over a relatively large area do not achieve a homogeneous light impression. This is due to the spatially inhomogeneous light intensity of the light sources. In previous efforts to improve the luminous impression, scattering lenses were attached after a collimator, for example. However, these are very heavy and do not achieve the legally required light values which are required for lighting devices in the field of motor vehicle headlights.
  • the object of the present invention is to alleviate or eliminate the disadvantages of the prior art. The invention therefore sets itself the goal in particular of creating a lighting device in which the homogenization of the light impression is further improved.
  • the light exit surface of the collimator is formed from a plurality of lenses, which are preferably arranged in a uniform grid on the entire light exit surface of the collimator, each lens being set up to emit the light of the illuminant divergently onto the light coupling surface of the optical element, so that each of the plurality of lenses each illuminates the light coupling surface of the optical element, all lenses having essentially the same focal length, the collimator and the optical element being spaced from one another, the distance essentially corresponding to the focal length of the lenses.
  • the light from the light source is scattered onto the light coupling surface by all lenses which are arranged on the light exit surface of the collimator, whereby the light coupling surface of the optical element is illuminated particularly evenly per unit area.
  • the light intensity on the light coupling surface of the optical element per unit area is essentially constant.
  • the lenses are preferably designed as divergent lenses and formed in one piece with the collimator.
  • the light emitted divergently by each lens hits the light coupling surface of the optical element and is coupled into the optical system via the Fresnel optics.
  • the weight of the optical element can advantageously be reduced by using Fresnel optics.
  • the light rays run parallel within the optical element and are scattered on the light output surface by the optical elements when they exit the optical system. In this way, a particularly homogeneous light impression can be achieved on the light coupling-out surface.
  • the light output surface has a uniform brightness per unit area.
  • the optical element can be designed in the form of a plate, wherein the plate-shaped optical element can be of curved or planar design. This can be a special low weight can be achieved.
  • the width of the plate which corresponds to the expansion of the plate in the direction of light propagation, can be between 5 mm and 15 mm.
  • the length of the plate can be between 20 mm and 50 mm.
  • the height of the plate can be between 20 mm and 50 mm.
  • Each of the plurality of lenses preferably completely illuminates the light coupling surface of the optical element, as a result of which the illumination of the light coupling surface is composed of a superimposition of the light emitted by all lenses.
  • the light emerging from a single lens is essentially completely superimposed on the light coupling surface with the light emerging from all the other lenses.
  • the light intensity at the light coupling surface of the optical element per unit area is advantageously essentially constant or of the same size. In other words, the differences in intensity of the light emitted by the lighting means are compensated or evened out by the superimposition of the light emitted by each lens.
  • each lens in particular has the same dimensions and / or optical properties.
  • each lens is preferably 0.2 mm to 5 mm, preferably 0.6 mm to 3 mm, particularly preferably 1 mm to 2 mm. Due to the small lens area relative to the light exit area of the collimator, the entire light exit area can be formed from a large number of lenses. This advantageously leads to a superposition of a large number of light bundles, which in turn improves the uniform illumination of the light coupling surface of the optical element.
  • the collimator can be conically shaped and have an opening angle of, for example, 25 ° to 30 °.
  • the light exit surface of the collimator is smaller than the light coupling surface of the optical element.
  • the overall size of the lighting device can be reduced by a collimator which is small relative to the optical element.
  • the light exit surface of the collimator can connect to the light coupling surface of the optical element in this way be spaced apart and arranged so that the light emerging from each lens exclusively illuminates the light coupling surface of the optical element completely or exactly.
  • the individual lenses are preferably calculated by a person skilled in the art in such a way that, at a distance from the lenses that corresponds to the focal length of the lenses, each lens illuminates an area of the same size, which corresponds to the light coupling surface of the optical element.
  • the lighting device can have a first and a second light module, the first light module preferably illuminating a first partial area of the light coupling area, and the second light module illuminating a second partial area of the light coupling area, the first and the second partial area each forming half of the light coupling area, for example.
  • the first and the second light module can, for example, have lighting means with different colors, whereby light of different colors can advantageously be emitted via the light coupling-out surface of the optical system.
  • the first and the second light module can also each illuminate the entire light coupling surface of the optical system, preferably completely or over the entire surface.
  • the lighting device can also comprise three or more light modules.
  • the first and the second partial surface can be illuminated without overlapping by the respective light module.
  • a lighting system comprising a lighting device according to the invention and a lighting unit, the lighting unit being set up to generate light and to emit it along a light emission direction, the light emission direction being directed onto the focal plane of the lenses of the collimator of the light module, the lighting system having an adjustment device comprises, with which the optical element of the lighting device can be transferred between a first and a second position, the optical element being arranged in the first position such that the light emitted by the at least one light module of the lighting device hits the light coupling surface of the optical element, wherein in the second position, the optical element is arranged such that no light emitted by the at least one light module of the lighting device strikes the light coupling surface of the optical element and that Optical element lies outside the light emission direction of the light which can be emitted by the lighting unit.
  • the optical system Due to the adjustability of the optical system, depending on the position in which the optical system is located, different light distributions can be generated by the lighting system.
  • smaller, less powerful adjustment devices for example a linear drive or a servomotor, can be used.
  • the lighting system is installed in a motor vehicle, for example, there is the further advantage that less installation space has to be made available for the transition between the first and the second position, since the at least one light module of the lighting device and the lighting unit can be installed in a stationary manner, since only the optical system is adjustable.
  • the optical system can be adjustably attached to one or more guide rails, for example.
  • the optical element can also be pivoted about a pivot axis with the adjusting device, the optical system in the pivoted state being outside the light propagation direction of the at least one light module of the lighting device and outside the light emission direction of the lighting unit.
  • the light module of the lighting device and the lighting unit can be arranged to one another in such a way that the light propagation direction of the collimator of the light module and the light emission direction of the lighting unit have an acute angle to one another.
  • the direction of light propagation of the collimator of the light module and the direction of light emission of the lighting unit preferably have an intersection, the intersection being in the focal plane of the lenses of the collimator.
  • the light module of the lighting device and the lighting unit are positioned relative to one another in such a way that the direction of light propagation and the direction of light emission are each directed onto the light coupling surface of the optical element.
  • the at least one light module of the lighting device can be in an active state, in which Light is emitted from the at least one light module onto the light coupling surface, the lighting unit being in an inactive state while the lighting device is in the active state, in which the lighting unit does not emit any light.
  • the lighting unit When the optical element is in the second position, the lighting unit can be in an active state, in which light is emitted from the lighting unit as a light beam, the at least one light module of the lighting device being located while the lighting unit is in the active state, is in an inactive state in which the at least one light module does not emit any light.
  • the lighting system can in particular generate a first light distribution when the optical element is in the first position and the at least one light module of the lighting device is in an active state, and generate a second light distribution when the optical element is in the second position and the lighting unit is in is an active state, wherein preferably the first and the second light distribution are different.
  • the first light distribution preferably comprises a light distribution of a daytime running light or a signal light function
  • the second light distribution a low beam distribution or high beam distribution.
  • the light module of the lighting device can be active and the optical element can be in the first position. If, however, a low beam or a high beam is required, the light module of the lighting device in particular can be brought into an inactive state, the lighting unit being brought into an active state, in particular essentially simultaneously, and the optical system also being transferred from the first to the second position . This means that the transition from various light functions or light distributions can be carried out quickly and easily.
  • the lighting device and / or the lighting unit preferably each have a light source which is set up to generate white and / or colored light.
  • the lighting device can advantageously provide colored light for a signal light function and the lighting unit can provide essentially white light for a low beam or high beam.
  • the Fig. 1-3 show different views of a lighting device 1 for a motor vehicle headlight with two light modules 2, the light modules 2 each having a lighting means 2 a and a collimator 3.
  • the light modules 2 are preferably identical.
  • An embodiment with a light module 2 is shown in FIG Fig. 4 shown.
  • the collimator 3 is set up so that the light generated by the lighting means 2a via a light exit surface 3a of the collimator 3 as a divergent light bundle in a direction of light propagation 4 (see Fig. Fig. 4-5 ) exit.
  • the collimator 3 is conically shaped and has an opening angle ⁇ of 25 ° to 30 ° (see Fig Fig. 2 ).
  • the lighting device further comprises an optical element 5, which is arranged after the collimator 3 in the direction of light propagation 4.
  • the optical element 5 has a light input surface 5a and a light output surface 5b, the light from the collimator 3 impinging on the light input surface 5a, being guided through the optical element 5 to the light output surface 5b, and exiting the optical element 5 at the light output surface 5b.
  • the light coupling surface 5a has Fresnel optics which are set up to refract the light rays upon entry into the optical element 5 in such a way that the light rays propagate parallel to one another within the optical element 5.
  • the light decoupling surface 5b of the optical element 5 has a multiplicity of optical elements 6, each optical element 6 being designed and set up in such a way that the light emerges from each optical element 6 as a divergent light bundle (see Fig. Fig. 4-5 ).
  • the light exit surface 3 a of the collimator 3 is formed from a multiplicity of lenses 7.
  • the lenses 7 are arranged in a uniform grid on the entire light exit surface 3 of the collimator 3.
  • Each lens 7 is set up to radiate the light of the illuminant 2a divergently onto the light coupling surface 5a of the optical element 5, so that each of the plurality of lenses 7 illuminates the light coupling surface 5a of the optical element 5.
  • All lenses 7 have essentially the same focal length, with the distance between the collimator 3 and the optical element 5 essentially correspond to the focal length of the lenses 7.
  • the optical element 5 is designed to be planar or flat and plate-shaped, wherein the optical element 5 can also be designed as a curved plate.
  • Each of the plurality of lenses 7 completely illuminates the light coupling surface 5 a of the optical element 5.
  • the illumination of the light coupling surface 5 a is composed of a superimposition of the light emitted by all lenses 7.
  • Each lens 7 has the same dimensions and / or optical properties.
  • the diameter of each lens 7 is 0.2 mm to 5 mm, preferably 0.6 mm to 3 mm, particularly preferably 1 mm to 2 mm.
  • the light exit surface 3a of the collimator 3 is clearly smaller than the light input surface 5a of the optical element 5.
  • the light output surface 3a of the collimator 3 is spaced from the light input surface 5a of the optical element 5, the light emerging from each lens 7 exclusively or the light input surface 5a of the optical element 5 completely or . precisely illuminated. In particular, no light rays run laterally or over an edge of the optical element 5.
  • the lenses 7 of the light exit surface 3a are thus calculated for the size of the light coupling surface 5a.
  • the collimator 3 illuminates the entire light coupling surface 5a.
  • the first light module 2 illuminates a first partial surface of the light coupling surface 5a and the second light module 2 illuminates a second partial surface of the light coupling surface 5a, whereby, for example, the first and the second partial surface each form half of the light coupling surface 5a.
  • the first and the second partial area are preferably illuminated without overlapping.
  • the beam path of the light beams between the collimator 3 and the optical element 5 and after the optical element 5 is shown schematically, only the two outer and one central light beam being shown.
  • the Fresnel optics of the light coupling surface 5a has a structure which compensates for the angle between the collimators 3 and the light coupling surface 5a, so that all light beams are directed parallel within the optical element.
  • FIGS. 6 and 7 show a lighting system 8 with a lighting device 1 and a lighting unit 9.
  • the lighting unit 9 is set up to generate light and to emit it along a light emission direction 10.
  • the light emission direction 10 is directed onto the focal plane of the lenses 7 of the collimator 3 of the light module 2 or onto the optical element 5 when this is in a first position (see Fig. Fig. 6 ) is arranged.
  • the lighting system 8 comprises an adjusting device 11 with which the optical element 5 can be transferred between the first and a second position. The second position is in Fig. 7 shown. In the first position, the light emitted by the collimator 3 of the lighting device 1 hits the light coupling surface 5a of the optical element 5.
  • the lighting unit 9 is inactive at this point in time and does not emit any light, this being indicated by the dashed lines.
  • the optical element lies outside the light propagation direction 4 of the collimator 3 and also outside the light emission direction 10 of the lighting unit 9. The light from the lighting unit 9 can thus be emitted unhindered, for example onto a roadway.
  • the light module 2 of the lighting device 1 and the lighting unit 9 are arranged to one another in such a way that the light propagation direction 4 of the collimator 3 of the light module 2 and the light emission direction 10 of the lighting unit 9 have an acute angle to one another.
  • the direction of light propagation 4 and the direction of light emission 10 have an intersection which lies in the focal plane of the lenses 7 of the collimator 3.
  • the light module 2 of the lighting device 1 When the optical element 5 is in the first position, the light module 2 of the lighting device 1 is in an active state in which light is emitted from the light module 2 onto the light coupling surface 5a. At this point in time, the lighting unit 9 is in an inactive state in which the lighting unit 9 does not emit any light.
  • the lighting unit 9 When the optical element 5 is in the second position (see Fig. Fig. 7 ), the lighting unit 9 is in an active state in which light is emitted from the lighting unit 9 as a light bundle. At this point in time, the light module 2 of the lighting device 1 is in an inactive state in which the light module 2 does not emit any light. This is indicated by the dashed lines in Fig. 7 indicated. The first position of the optical element 5 is in Fig. 7 also indicated as a dashed line.
  • the lighting system 8 can generate a first light distribution when the optical element 5 is in the first position and the at least one light module 2 of the lighting device 1 is in an active state. Furthermore, a second light distribution can be generated when the optical element 5 is in the second position and the lighting unit 9 is in an active state.
  • the first light distribution is, for example, a light distribution of a daytime running light or a signal light function
  • the second light distribution is, for example, a low beam distribution or high beam distribution. Accordingly, it is possible to switch between different light distributions, depending on the position in which the optical element 5 is.

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  • 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)
EP19195885.9A 2019-09-06 2019-09-06 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer Withdrawn EP3789658A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP19195885.9A EP3789658A1 (de) 2019-09-06 2019-09-06 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer
JP2022514829A JP7241241B2 (ja) 2019-09-06 2020-08-11 自動車投光器用の照射装置
PCT/EP2020/072517 WO2021043544A1 (de) 2019-09-06 2020-08-11 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer
EP20753367.0A EP4025827B1 (de) 2019-09-06 2020-08-11 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer
CN202080062086.4A CN114286914B (zh) 2019-09-06 2020-08-11 用于机动车前照灯的照明装置
US17/639,421 US11796148B2 (en) 2019-09-06 2020-08-11 Lighting device for a motor vehicle headlight
KR1020227007358A KR20220037519A (ko) 2019-09-06 2020-08-11 자동차 헤드램프용 조명 장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19195885.9A EP3789658A1 (de) 2019-09-06 2019-09-06 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer

Publications (1)

Publication Number Publication Date
EP3789658A1 true EP3789658A1 (de) 2021-03-10

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EP19195885.9A Withdrawn EP3789658A1 (de) 2019-09-06 2019-09-06 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer
EP20753367.0A Active EP4025827B1 (de) 2019-09-06 2020-08-11 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer

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EP20753367.0A Active EP4025827B1 (de) 2019-09-06 2020-08-11 Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer

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US (1) US11796148B2 (zh)
EP (2) EP3789658A1 (zh)
JP (1) JP7241241B2 (zh)
KR (1) KR20220037519A (zh)
CN (1) CN114286914B (zh)
WO (1) WO2021043544A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4290128A1 (de) * 2022-06-07 2023-12-13 ZKW Group GmbH Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer oder ein kraftfahrzeug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4202289A1 (de) * 2021-12-23 2023-06-28 ZKW Group GmbH Optiksystem für einen kraftfahrzeugscheinwerfer

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JP2017112065A (ja) * 2015-12-18 2017-06-22 株式会社小糸製作所 車両用灯具

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CN114286914A (zh) 2022-04-05
EP4025827B1 (de) 2023-07-19
CN114286914B (zh) 2024-04-19
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KR20220037519A (ko) 2022-03-24
US11796148B2 (en) 2023-10-24

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