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EP3757450A1 - Dispositif d'éclairage d'un projecteur de véhicule automobile - Google Patents

Dispositif d'éclairage d'un projecteur de véhicule automobile Download PDF

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Publication number
EP3757450A1
EP3757450A1 EP19182837.5A EP19182837A EP3757450A1 EP 3757450 A1 EP3757450 A1 EP 3757450A1 EP 19182837 A EP19182837 A EP 19182837A EP 3757450 A1 EP3757450 A1 EP 3757450A1
Authority
EP
European Patent Office
Prior art keywords
optical system
projection optical
projection optics
area
projection
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Withdrawn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
EP19182837.5A
Other languages
German (de)
English (en)
Inventor
Stefan MITTERLEHNER
Günter Karlinger
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 EP19182837.5A priority Critical patent/EP3757450A1/fr
Priority to US17/617,435 priority patent/US11732857B2/en
Priority to JP2021576908A priority patent/JP7342155B2/ja
Priority to CN202080046401.4A priority patent/CN114008381B/zh
Priority to KR1020217039513A priority patent/KR20220002645A/ko
Priority to EP20732174.6A priority patent/EP3990825A1/fr
Priority to PCT/EP2020/065794 priority patent/WO2020259994A1/fr
Publication of EP3757450A1 publication Critical patent/EP3757450A1/fr
Withdrawn legal-status Critical Current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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • 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
    • 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]
    • F21S43/145—Surface emitters, e.g. organic light emitting diodes [OLED]
    • 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
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements

Definitions

  • the invention relates to a lighting device for a motor vehicle headlight which comprises a projection optical system and a light source unit.
  • the lighting device is preferably a lighting device that functions according to the projection principle.
  • the light source unit comprises a surface which is preferably perpendicular to an optical axis of the projection optical system, wherein the light source unit can generate a light image on the surface.
  • the size of the area is essentially the same as the size of the light image.
  • the light image that can be generated on the surface is by means of the projection optical system in front of the lighting device in the form of a light distribution, e.g. a low beam distribution, a floor projection light distribution or high beam distribution, projectable.
  • the light source unit also comprises a support structure, the support structure having an opening, the opening being arranged and designed to match the surface and the light image being able to be generated at least on one side of the surface facing the projection optical system.
  • a distance between the surface (or the light image) and the opening is smaller, preferably much smaller than the dimensions of both the opening and the light image.
  • the surface is arranged to match the opening, for example on or in the opening, so that when the light image is generated on the surface, all of the light emanating from the light image generated on the surface passes through the opening (in the direction of the projection optical system).
  • the invention also relates to a motor vehicle headlight with at least one such lighting device.
  • the projection optical systems are either not adjustable at all with respect to the light source or can only be adjusted with the aid of complex adjustment mechanisms.
  • the object of the present invention is therefore to create a lighting device for a motor vehicle headlight which is simple and can be adjusted reliably.
  • the projection optical system has guide elements and the support structure has elongated guides corresponding to the guide elements, the guide elements in the elongated guides along a longitudinal direction preferably running parallel to an optical axis of the projection optical system elongated guides are arranged so that they can be guided, wherein the projection optical system rests on the support structure in a fastenable manner and - before the projection optical system is fastened to the support structure - is movable along the longitudinal direction.
  • the invention makes use of gravity, the ability to be guided along the longitudinal direction (before fastening) a simple and safe positioning of the projection optics system in Relation to the area with the photograph allows. Errors (lens shape deviations, lens thickness tolerances, ...) can be at least partially compensated for in order to achieve the sharpest possible image, which is particularly important for logo projections.
  • the aforementioned desired position is obtained by moving the projection optical system with respect to the light source unit along the longitudinal direction and at the same time analyzing the generated light distribution, i. when the lighting device is put into operation, determined with regard to its quality, for example with regard to its sharpness.
  • the projection optics system is also referred to as an objective in the following.
  • Two elongate guides and guide elements are preferably provided in each case.
  • the guide elements are also elongated, for example. It can be useful if exactly one guide element is provided for each elongated guide.
  • the elongated guides can be designed, for example, as trough-shaped receptacles / depressions.
  • the surface can preferably be formed by mirror surfaces of mirrors of a micromirror array of a surface light modulator, for example a DMD chip.
  • a light-emitting surface of an LED light source can also function as a surface.
  • the surface can be used as a light conversion medium or light conversion medium plate be designed that can convert light from a laser light source, for example a laser diode, into substantially white light.
  • the surface is preferably flat or not curved. It goes without saying that in the aforementioned cases the LED light sources or laser light source are part of the light source unit.
  • the projection optical system is preferably arranged downstream of the light source unit in the main emission direction (parallel to the longitudinal direction).
  • the lighting device can be designed as a light module. That is, the lighting device in an assembled state, i. when the projection optical system is attached to the support structure, forms a structural unit and does not consist of structurally separate elements or sub-units, which are distributed at different locations in a motor vehicle headlight, for example.
  • the projection optics system comprises a projection optics holder and at least one projection optics, the at least one projection optics being enclosed in the projection optics holder, the guide elements being arranged on the projection optics holder.
  • Lenses such as e.g. concave, convex, bi-concave, -convex, plane-concave or -convex can be used.
  • the lenses can consist of different materials (of materials each having a different refractive index) and be positioned at different distances from one another.
  • different lenses can have different refractive indices matched to one another.
  • the lenses made of plastics, such as e.g. made of PC (polycarbonate) PMMA (polymethyl methacrylate), or from optical glasses, e.g. be made of flint or crown glass.
  • the guide elements are designed in one piece with the projection optics holder and in particular form a monolithic structure with the projection optics holder.
  • the projection optics holder rests on the carrier structure, is movable along the longitudinal direction and can be fastened to the carrier structure (in a desired position).
  • the projection optics system comprises two or more, preferably three, projection optics.
  • the projection optics system has an achromatic and / or apochromatic effect or the projection optics are designed and positioned in relation to one another in such a way that the projection optics system has an achromatic and / or apochromatic effect.
  • the guide elements are designed as elevations, the elevations being trapezoidal in a section arranged transversely to the longitudinal direction.
  • the elevations protrude downwards.
  • the elongated guides are designed as, for example, trough-shaped depressions or as holes, through holes and / or elongated holes, the guide elements, for example, either partially or entirely being received in the elongated guides.
  • the projection optics system can be moved within a range of motion defined by the length of the elongated guides and the projection optics system, preferably the projection optics holder, has an attachment area and the support structure has a counter area corresponding to the attachment area, the movement area, attachment area and the counter area, correspond to one another in such a way that the projection optics system, preferably its projection optics holder, can be attached to the support structure in any position within the range of motion such that the attachment area of the projection optics system is at least partially attached to the opposite area of the support structure.
  • the term "movement range” is understood to mean that length within which the projection optical system can be moved with respect to the light source unit along the optical axis (of the projection optical system) when the guide elements are arranged in the elongated guides.
  • the range of motion can also be determined by the length of the guide elements (along the longitudinal direction), e.g. Length of the elevations, is defined.
  • the projection optics system preferably its projection optics holder, is fastened to the carrier structure by screwing, gluing, riveting or welding.
  • the fastening area has at least two, preferably three, through openings and the mating area has at least two, preferably three receptacles, each receptacle corresponding to a through opening, with different receptacles corresponding to different through openings, the fastening area on the mating area by means of at least two, preferably three fastening elements, for example screws, which can be received in the through openings and in the receptacles can be fastened.
  • the through openings are designed as elongated holes extending in the direction of the optical axis, the length of which corresponds to the range of movement.
  • the fastening area is arranged on the outer circumference of the projection optics holder, the through openings being arranged distributed over the area so that they offer a better hold of the projection optics system on the carrier structure.
  • the through openings or the receptacles are arranged in a triangle.
  • the location (or the desired position) is selected as a function of a desired image scale or desired image sharpness.
  • the projection optics system preferably the projection optics holder
  • the handling area can, for example, enable in particular automated handling or automated detection of the projection optical system 1.
  • the handling area can e.g. By an industrial robot, e.g. an assembly robot can be detected, which carries out a precise longitudinal adjustment in the axial direction (in the direction of the optical axis) in order to achieve, for example, a specified image scale or a specified image sharpness.
  • the handling area is designed as lateral elements, preferably tabs, protruding from the projection optics system, preferably from the projection optics holder.
  • the lateral tab-shaped elements preferably tabs, extend from the projection optics holder in a direction orthogonal to the optical axis, preferably horizontally.
  • the ends of the elongated guides each have a stop surface so that the respective guide element can only be moved from a first end to a second end of the elongated guide opposite the first end.
  • the support structure has arms, the arms of the support structure protruding in the direction of the projection optical system, the elongated guides being formed in the arms, and the projection optical system preferably having laterally protruding tabs, the guide elements on the protruding tabs are arranged.
  • the arms protrude from a plane containing the opening and extend parallel to the longitudinal direction.
  • the arms form a support surface for the projection optical system.
  • the tabs are arranged on the projection optics holder. Particular advantages can result if the tabs are formed on the projection optics holder, in particular form a monolithic structure with the projection optics holder.
  • the guide elements are arranged on the tabs, in particular are formed on the tabs. Particular advantages can result if the guide elements form a monolithic structure with the tabs.
  • the guide elements preferably protrude downward from the tabs.
  • all elongated guides are of the same length.
  • FIG. 1 shows a light module for a motor vehicle headlight, which corresponds to a lighting device according to the invention.
  • the light module comprises a projection optical system 1 and a light source unit 2 .
  • Figure 1 shows a partially assembled state of the light module, in which the projection optical system 1 is not attached to the light source unit 2.
  • the light source unit comprises a surface 20 which is perpendicular to an optical axis X of the light module.
  • the light source unit 2 When the light source unit 2 is in operation, it generates a light image on the surface 20, the size of which is (substantially) the same as the size of the surface 20.
  • the Figure 1 it can be seen that the light image is generated on a side 201 of the surface 20 facing the projection optical system 1.
  • the light image generated on the side 201 is projected by means of the projection optics system 1 in front of the light module in the form of a light distribution, preferably in accordance with the law.
  • the side 201 is formed by mirror surfaces of mirrors of a micromirror array of a surface light modulator, for example a DMD chip.
  • the projection optics system 1 comprises a projection optics holder 4 , in which three projection optics 5a , 5b , 5c are enclosed.
  • the projection optics 5a, 5b, 5c are designed as non-rotationally symmetrical lenses (see Figure 5 ).
  • the first two lenses 5a and 5b (seen from the surface 20) together form a so-called air achromat (see description of the prior art DE 10 2010 046 626 84 and in particular paragraphs [0009] to [0013]) and thus correct at least longitudinal color errors.
  • the air achromatic lens 5a and 5b can also be designed in such a way that lateral color errors are also corrected. This can be achieved by optimizing air achromatic parameters such as lens materials, curvatures, spacing and so on.
  • the third lens 5c in this lens triplet is a divergent lens and essentially determines the size of the light distribution, in particular its height and width.
  • the projection optics system 1 can also have other elements such as fastening clips 15 or resilient insert elements (not shown) for clamping the projection optics 5a, 5b, 5c in the projection optics holder 4.
  • the light module Since the image generated on the side 201 of the surface 20 is mapped with a projection optical system 1, preferably a lens system, the light module functions according to the projection principle.
  • the light source unit 2 also comprises a carrier structure 3 .
  • the carrier structure 3 has an opening 30 , the opening 30 being arranged and designed to match the surface 20.
  • the distance of the light image from the edges of the opening 30 is smaller, preferably much smaller than the dimensions of the opening 30 and the light image itself. That is, the surface 20 or the side 201 is in such a way to the opening 30, for example on or in the Opening 30, is appropriately arranged and designed that when generating the light image on the surface 20 or on the side 201 essentially all of the light emanating from the light image generated on the surface 20 or on its side 201 through the opening 30 (in the direction of the lens or the projection optics system 1) passes.
  • the projection optical system 1 can be designed as an objective.
  • the projection optical system 1 has two guide elements 10 .
  • the guide elements 10 according to this preferred embodiment are of identical design.
  • the carrier structure 3 also has two elongated - likewise identical - guides 31 corresponding to the guide elements 10.
  • Each elongated guide 31 corresponds in each case to a guide element 10, with different guides 31 corresponding to different guide elements 10.
  • the guide elements 10 are arranged in the elongated guides 31 such that they can be guided along a longitudinal direction X of the elongated guides 31.
  • the longitudinal direction X is parallel to the optical axis of the light module or the projection optical system 1.
  • the elongated guides 31 are designed roughly like trough-shaped receptacles or depressions (see FIG Figure 3 ).
  • the projection optical system 1 rests on the support structure 3 and can be moved along the longitudinal direction or the optical axis X.
  • This enables a more precise longitudinal adjustment of the projection optical system 1 in relation to the carrier structure 3, whereby a distance between the projection optical system 1 and the side 201 of the DMD chip can be varied, for example to set the image scale.
  • the lens the projection optical system
  • the lens rests on the support structure under the action of gravity.
  • the direction of gravity corresponds to the "downward" direction.
  • the projection optical system 1 In order to mount the projection optical system 1 on the light source unit 2, the projection optical system 1 is placed on the support structure 3 of the light source unit 2 (see arrow D in Figure 1 ), so that the guide elements 10 are received in the elongated guides 31. Thereafter, the projection optical system 1 is moved back and forth along the longitudinal direction X until an optimal position (for example with regard to sharpness and scale) with respect to the surface 20 is reached. The projection optical system 1 is then attached to the carrier structure, for example by screwing, gluing, welding.
  • the guide elements 10 are arranged on the projection optics holder 4.
  • the projection optics holder 4 is formed in one piece.
  • the projection optics holder 4 can, for example, be made of die-cast magnesium or by thixomolding or forming, or it can be designed as a plastic injection-molded part.
  • the guide elements 10 of the light module shown are thus formed in one piece with the projection optics holder 4, and form a monolithic structure with the projection optics holder.
  • the projection optics holder 4 of the objective 1 rests on the support structure 3, is movable along the longitudinal direction X and can be fastened to the support structure.
  • Cooling fins 21 of a heat sink (not shown further) for cooling the light source unit 2 to see.
  • the cooling ribs are designed, for example, in the form of pins arranged parallel to the longitudinal direction X of the elongated guides.
  • Figure 1 and 3 show that the guide elements are designed as elevations 10 protruding downward from the projection optics holder 4.
  • the elevations extend in the longitudinal direction X of the elongated guides 31 and have a trapezoidal cross section.
  • the elongated guides 31 accordingly also have a trapezoidal cross section. This is especially good in Figure 3 recognizable.
  • the projection optical system 1 can be displaced, in particular to and fro, with respect to the light source unit 2 along the longitudinal direction X of the elongated guides 31 parallel to the optical axis.
  • the length L of the elongated guides 31 and optionally also a length of the elevations 10 define a movement range B within which the projection optical system 1 can be moved with respect to the light source unit 2.
  • the projection optics holder 4 has a fastening area 12 , the carrier structure 3 having a counter area 33 corresponding to the fastening area 12.
  • the movement area B, fastening area 12 and the mating area 33 correspond to one another in such a way that the projection optics holder 4 can be fixed to the support structure 3 in any position within the movement area B in such a way that the fastening area 1 of the projection optics system 1 is at least partially on the mating area 33 of the support structure 3 is attached.
  • screws 6a , 6b , 6c were selected as fastening means as examples. Gluing, riveting or welding is also possible.
  • the fastening area 12 comprises three (elongated) through openings 120 , 121 , 122 .
  • the opposite area 33 comprises three receptacles 330 , 331 , 332 .
  • Each receptacle 330, 331, 332 corresponds to a through opening 120, 121, 122.
  • Different receptacles 330, 331, 332 correspond to different through openings 120, 121, 122.
  • the fastening area 12 is arranged on the outer circumference of the projection optics holder 4. Through openings 120, 121, 122 are distributed over the area 12 so that they offer a better hold of the projection optical system 1 on the support structure 3, in particular during the aforementioned adjustment by moving back and forth.
  • One Synopsis of the Figures 1 and 4th it can be seen that the through openings 120, 121, 122 (and also the receptacles 330, 331, 332 are arranged in approximately a triangle, both from above and from the front.
  • the through openings 120, 121, 122 have a length corresponding to the movement area B in the direction of the optical axis X so that the movement area B can be used to the maximum.
  • the receptacles 330, 331, 332 are designed as screw domes.
  • the (three) screws 6a, 6b, 6c are screwed through the through openings 120, 121, 122 into the screw domes 330, 331, 332.
  • the position in which the projection optical system 1 is fastened to the support structure is determined and selected as a function of a desired quality of the light distribution, for example a desired imaging scale.
  • the projection optics holder 4 has a handling area 13 .
  • the handling area 13 is formed on mutually opposite sides 14a , 14b of the projection optics holder 4. It's in the Figures 3 and 4th It is particularly easy to see that the handling area 13 protrudes from the sides 14a, 14b of the projection optics holder 4 and is approximately in the form of tabs which extend horizontally away from the projection optics holder 4.
  • the handling area 13 is provided in order to facilitate, in particular, automated handling or automated detection of the projection optical system 1.
  • the handling area 13 can, for.
  • an industrial robot e.g. an assembly robot can be detected, which carries out a precise longitudinal adjustment in the axial direction X, for example to achieve a specified image scale.
  • the quality of the optical image can be improved as a result.
  • this can improve the image sharpness and at least partially compensate for the image errors that are caused by lens shape deviations, lens thickness tolerances, etc. This can be done with those light modules or lighting devices that are used to generate logo projections or different floor projection light distributions are particularly advantageous.
  • the elongated guides 31 each have a stop surface 31a , 31b at their ends, so that the respective guide element 10 can only be moved from a first end to a second end of the corresponding elongated guide 31 opposite the first end.
  • a longitudinal adjustment of the objective 1 with regard to the support structure 3 in the axial direction X is limited to the predetermined length L.
  • the elongated guides 31 are formed in the support structure 3 in the direction of the projection optical system 1 protruding arms 32 .
  • the arms 32 protrude from a plane containing the opening 30 and extend parallel to the longitudinal direction X of the elongated guides 31 formed therein.
  • Exactly one elongated guide 31 is formed in each arm 32.
  • the arms 32 are arranged to the side of the opening 30 and connected by a connecting web 34 .
  • the connecting web 34 also protrudes from the support structure 3 in the direction of the optical axis X and partially (for example from above) closes the opening 30.
  • the arms 32 and the connecting web 34 together offer a support surface for the projection optics holder 4 of the projection optics system 1.
  • the projection optics holder 4 has two tabs 11 on the opposite sides 14a, 14b.
  • the tabs 11 protrude laterally from the projection optics holder 4 and extend flat in the horizontal direction.
  • two of the three through openings 120 and 122 are formed in the tabs 11.
  • the handling area 13 is formed in one piece with the tabs 11.
  • the guide elements 10 are formed on the protruding tabs 11. It's in the Figures 1 and 3 It is particularly easy to see that each guide element 10 is arranged at a distal end 11a of the corresponding tab 11.
  • Such an arrangement of the guide elements 10 improves handling when adjusting / positioning the objective 1 on the support structure 3 and thus reduces the risk of the guide elements 10 tilting / tilting in the elongated guides 31.
  • an arrangement of the guide elements 10 that is as "wide” as possible from one another offers a stable support and guidance of the projection optical system 1.

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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)
EP19182837.5A 2019-06-27 2019-06-27 Dispositif d'éclairage d'un projecteur de véhicule automobile Withdrawn EP3757450A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP19182837.5A EP3757450A1 (fr) 2019-06-27 2019-06-27 Dispositif d'éclairage d'un projecteur de véhicule automobile
US17/617,435 US11732857B2 (en) 2019-06-27 2020-06-08 Illumination device of a motor vehicle headlamp having a projection optics system guided along optical axis direction
JP2021576908A JP7342155B2 (ja) 2019-06-27 2020-06-08 自動車投光器の照射装置
CN202080046401.4A CN114008381B (zh) 2019-06-27 2020-06-08 机动车前大灯的照明装置
KR1020217039513A KR20220002645A (ko) 2019-06-27 2020-06-08 자동차 헤드램프의 조명 장치
EP20732174.6A EP3990825A1 (fr) 2019-06-27 2020-06-08 Dispositif d'éclairage d'un projecteur de véhicule automobile
PCT/EP2020/065794 WO2020259994A1 (fr) 2019-06-27 2020-06-08 Dispositif d'éclairage d'un projecteur de véhicule automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19182837.5A EP3757450A1 (fr) 2019-06-27 2019-06-27 Dispositif d'éclairage d'un projecteur de véhicule automobile

Publications (1)

Publication Number Publication Date
EP3757450A1 true EP3757450A1 (fr) 2020-12-30

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Family Applications (2)

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EP19182837.5A Withdrawn EP3757450A1 (fr) 2019-06-27 2019-06-27 Dispositif d'éclairage d'un projecteur de véhicule automobile
EP20732174.6A Pending EP3990825A1 (fr) 2019-06-27 2020-06-08 Dispositif d'éclairage d'un projecteur de véhicule automobile

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20732174.6A Pending EP3990825A1 (fr) 2019-06-27 2020-06-08 Dispositif d'éclairage d'un projecteur de véhicule automobile

Country Status (6)

Country Link
US (1) US11732857B2 (fr)
EP (2) EP3757450A1 (fr)
JP (1) JP7342155B2 (fr)
KR (1) KR20220002645A (fr)
CN (1) CN114008381B (fr)
WO (1) WO2020259994A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4224057A1 (fr) * 2022-02-03 2023-08-09 Marelli Automotive Lighting Reutlingen (Germany) GmbH Module d'éclairage, dispositif d'éclairage de véhicule automobile et procédé de fabrication

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EP2693109A2 (fr) * 2012-08-03 2014-02-05 Automotive Lighting Reutlingen GmbH Module d'éclairage
KR20140107950A (ko) * 2013-02-28 2014-09-05 에스엘 주식회사 차량용 램프
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US20220221122A1 (en) 2022-07-14
CN114008381B (zh) 2024-06-14
US11732857B2 (en) 2023-08-22
JP2022538135A (ja) 2022-08-31
WO2020259994A1 (fr) 2020-12-30
CN114008381A (zh) 2022-02-01
KR20220002645A (ko) 2022-01-06

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