EP3792548B1 - Projektionsscheinwerfer - Google Patents

Projektionsscheinwerfer Download PDF

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Publication number
EP3792548B1
EP3792548B1 EP19196352.9A EP19196352A EP3792548B1 EP 3792548 B1 EP3792548 B1 EP 3792548B1 EP 19196352 A EP19196352 A EP 19196352A EP 3792548 B1 EP3792548 B1 EP 3792548B1
Authority
EP
European Patent Office
Prior art keywords
light
reflective surface
lens
unit
surface unit
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
EP19196352.9A
Other languages
English (en)
French (fr)
Other versions
EP3792548A1 (de
Inventor
Ming-Chih Shih
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.)
TYC Brother Industrial Co Ltd
Original Assignee
TYC Brother Industrial Co Ltd
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 TYC Brother Industrial Co Ltd filed Critical TYC Brother Industrial Co Ltd
Priority to EP19196352.9A priority Critical patent/EP3792548B1/de
Publication of EP3792548A1 publication Critical patent/EP3792548A1/de
Application granted granted Critical
Publication of EP3792548B1 publication Critical patent/EP3792548B1/de
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Anticipated expiration legal-status Critical

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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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • 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
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/36—Combinations of two or more separate reflectors
    • 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
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device

Definitions

  • An ellipsoidal reflector headlamp usually includes at least one light source, e.g. a light emitting diode (LED), a reflective mirror, a light shield and a lens.
  • a region above a cut-off line of the reflector headlamp is referred to as a dark zone.
  • the illuminance at the dark zone should be greater than a threshold illuminance to avoid dangerous. For example, when the illuminance at the dark zone is not sufficient for a user to find objects on the road, accidents may thus occur.
  • the reflective mirror and the light shield are usually provided to reflect light beams emitted from the light source to project light through the lens for light compensation at the dark region.
  • the light shield can be categorized into a movable light shield that is electrically controlled to move and a stationary light shield that is mounted fixedly.
  • a stationary light shield is designed to have a specific structure to reflect light and to project light patterns such as high beam and low beam as required.
  • the reflector headlamp is usually mounted in a lamp housing to constitute a conventional headlamp module and then the conventional headlamp module is equipped on a vehicle.
  • a housing wall of the lamp housing is usually designed to have many curved structures. However, light beams are refracted by the curved housing wall and the light patterns thus formed are adversely affected. For example, sufficient illuminance at the dark zone cannot be achieved.
  • the optical unit includes: a first reflector configured to intersect with an irradiation axis of a semiconductor light emitting element, to reflect light from the semiconductor light emitting element and to irradiate the front of a vehicle with it through a condenser lens, thereby forming at least part of the high beam light distribution pattern; a second reflector disposed adjacent to the first reflector and configured to reflect light from the semiconductor light emitting element, thereby forming at least part of the low beam light distribution pattern; a shade member configured to be freely displaced to a position where it shades light reflected from the first reflector to obtain a low beam forming state and a position where it allows irradiation of the front of the vehicle with the light reflected from the first reflector to obtain a high beam forming state; and a shade drive portion for displacing the shade member.
  • the document JP2004/172104 aims to obtain an overhead sign irradiated light without drastically changing design, structure, configuration, etc. of a shade.
  • the document depicts a solution in which a length of a front side movable shade is formed shorter than that of a rear side movable shade, and reflecting faces are provided on mutually faced inner surfaces of the shades respectively. Consequently, while a part L of a reflected light from a reflector is entered into a gap S between two pieces of the shades with a thin plate structures and reflected from the reflecting faces of the shades the part L of the reflected light is passed through the gap S between the shades.
  • the light L passed through the shades is entered into roughly lower part of a light collective lens to pass through the lens and radiated on an overhead sign side.
  • the overhead sign irradiated light may be obtained without drastically changing the design, structure, configuration, etc. of the shade.
  • an object is to provide a projection headlamp capable of alleviating at least one of the drawbacks of the prior art.
  • a projection headlight for a vehicle includes a reflecting mirror, a light shield, a reflector, a lens and a light emitting unit as defined in claim 1.
  • a projection headlight according to a first embodiment of the present invention, is mounted in a lamp housing 1.
  • the lamp housing 1 includes a housing wall 11 and a light transmissive wall 12 mounted on the housing wall 11 transmitting light beams from the projection headlight to project therethrough forwardly.
  • the housing wall 11 includes a plurality of bent portions 111 making the lamp housing 1 to have a certain structural appearance.
  • the projection headlight includes a reflecting mirror 2, a light shield 3, a heat dissipating unit 4, a reflector 5, a lens 6, and a light emitting unit 7.
  • the reflecting mirror 2 includes an upper reflecting portion 21, a lower reflecting portion 22, and a first reflective surface unit 23.
  • the lower reflecting portion 22 is disposed below and cooperates with the upper reflecting portion 21 to define a mounting space 20.
  • the first reflective surface unit 23 includes an upper reflective surface 231 formed on the upper reflecting portion 21 and a lower reflective surface 232 formed on the lower reflecting portion 22.
  • the upper reflective surface 231 and the lower reflective surface 232 are elliptic reflective surfaces in this embodiment.
  • the light shield 3 is disposed in the mounting space 20, has a thickness gradually decreased in a front-rear direction (X) in which the lens 6 is spaced apart from the reflecting mirror 2 and includes a second reflective surface unit 31, a top reflecting surface 32 and a bottom reflecting surface 33.
  • the light shield 3 and the lens 6 may be integrated as a module but the present invention is not limited to this example.
  • the heat dissipating unit 4 includes a base board 41 and a plurality of heat dissipating fins 42.
  • the base board 41 extends into the mounting space 20, is disposed between the upper reflecting portion 21 and the lower reflecting portion 22 and is connected thermally to the reflector 5.
  • the heat dissipating fins 42 are integrally connected to the base board 41 and extend rearwardly from the base board 41.
  • the reflector 5 is disposed in the mounting space 20, is disposed behind the light shield 3 and includes a third reflective surface unit 51 facing forwardly toward the second reflective surface unit 31.
  • the third reflective surface unit 51 is formed with a plurality of light distributing structures 511 arranged side-by-side in a transverse direction (T) transverse to the front-rear direction (X) and configured to distribute light emitted from the light emitting unit 7 in the transverse direction.
  • each of the light distributing structures 511 is a forward-facing curved surface that is rearwardly concave.
  • the reflector 5 is connected thermally to a front end of the base board 41 of the heat dissipating unit 4 and cooperates with the heat dissipating unit 4 to form a single element.
  • the third reflective surface unit 51 of the reflector 5 is formed on the front end of the base board 41 by vacuum coating so as to thermally connect the reflector 5 to the heat dissipating unit 4.
  • an assembly of the reflector 5 and the heat dissipating unit 4 provides reflecting function while performing heat dissipating.
  • the lens 6 is disposed in front of the reflecting mirror 2 and the light shield 3 in the front-rear direction (X).
  • the lens 6 is a convex lens.
  • the light emitting unit 7 is disposed in the mounting space 20, is disposed behind the light shield 3 in the front-rear direction (X) and includes a first light emitting element 71 and a second light emitting element 72.
  • the first light emitting element 71 faces the upper reflecting portion 21, while the second light emitting element 72 faces the lower reflecting portion 22.
  • the first light emitting element 71 emits a plurality of light beams and paths of the light beams are indicated by dash-dotted lines (A) and (B).
  • the light beams indicated by the dash-dotted lines (A) are reflected by the upper reflective surface 231 of the first reflective surface unit 23 to propagate forwardly and downwardly and then are projected forwardly through the lens 6.
  • the light beam indicated by the dash-dotted line (B) is first reflected by the upper reflective surface 231 of the first reflective surface unit 23 toward the top reflecting surface 32 of the light shield 3 and then are reflected by the top reflecting surface 32 to project forwardly through the lens 6. In this way, a low beam pattern complying with regulations is formed.
  • the second light emitting element 72 emits a plurality of light beams and paths of the light beams are indicated by dash-dotted lines (C) and (D).
  • the light beam indicated by an upmost one of the dash-dotted line (C) is reflected by the lower reflective surface 232 of the first reflective surface unit 23 to propagate forwardly and upwardly and is projected forwardly through the lens 6.
  • the light beams indicated by the remaining two of the dash-dotted lines (C) are reflected by the lower reflective surface 232 of the first reflective surface unit 23 toward the bottom surface 33 of the light shield 3 and are then reflected by the bottom surface 33 to project forwardly through the lens 6.
  • Note that a majority of the light beams indicated by the dash-dotted lines (C) are projected to a region above the cut-off line of the projection headlight, which is known as a dark zone.
  • the light beams (A), (B) and (C) form a high beam light pattern complying with the regulations.
  • both of the first and second light emitting elements 71, 72 are turned on to emit light whereas when a low beam light pattern is required (see FIG. 4 ), only the first light emitting element 71 is required to be turned on.
  • the light beam indicated by a dash-dotted line (D) is emitted from the first light emitting element 71, is reflected by the upper reflective surface 231 of the first reflective surface unit 23 toward the second reflective surface unit 31 of the light shield 3, and then is reflected by the second reflective surface unit 31 toward the third reflective surface unit 51 to be projected forwardly and upwardly through the lens 6.
  • the light beam (D) is also projected to a region above the cut-off line to further compensate for the luminance of the dark zone and thus the illumination of the projection headlight is improved and safety in using a vehicle mounted with the projection headlight can be improved.
  • first reflective surface unit 23 By virtue of the first reflective surface unit 23, the second reflective surface unit 31 and the third reflective surface unit 51, light beams emitted from the first and second light emitting elements 71, 72 are properly reflected such that a luminance at the dark zone can be compensated.
  • the configuration of the first, second and third reflective surface units 23, 31, 51 can be modified by adjusting the structure, position and extending angle thereof to obtain a desired light pattern and a light exit angle in order to match the lamp housing 1 designed to have a certain aesthetic appearance.
  • the projection head light of the present invention includes three elements, i.e. the first, second and third reflective surface units 23, 31, 51, for reflecting light, and thus an included angle between the light beam reflected by the third reflective surface unit 51 and an optical axis (not shown) of the projection headlight is smaller than an included angle between a light beam reflected by the light shield of conventional headlight and an optical axis thereof. In this way, the light beam emitted through the lens 6 would propagate through the housing wall 11 without being refracted by the bent portions111, which will not result in insufficient illumination in the dark zone.
  • the application range of the projection headlamp of the present invention is relatively flexible and the paths of light beams of the projection headlamp can be easily adjusted according the design of the lamp housing 1. Even if the lamp housing 1 is designed to have many curved structures, the configuration of the first, second and third reflective surface units 23, 31, 51 can be modified accordingly to obtain a desired light pattern.
  • the projection headlight of the present invention is capable of providing light patterns of, but not limited to, a low beam and a high beam and can be used for light compensation as required.
  • the lens 6 has a focal point 61 located behind the lens 6 and the light shield 3 is disposed behind the focal point 61 of the lens 6 such that an image of the light shield 3 would not be formed in front of the projection headlight, i.e., the light shield 3 is not visible in front of the projection headlight, and thus provides a relatively good aesthetic appearance.
  • the second reflective surface 31 of the modified light shield 3 is formed with a plurality of light distributing surface portions 311 arranged side-by-side in the transverse direction (T) and configured to distribute light emitted from the light emitting unit 7.
  • Each of the light distributing surface portions 311 is a rearward-facing curved surface that is forwardly concave.
  • the projection headlight of a second embodiment of the present invention similar to the first embodiment is shown, and the difference therebetween resides in that the heat dissipating unit 4 of the second embodiment is connected integrally to the reflector 5 and the light shield 3.
  • each of the light distributing structures 511 of the reflector 5 is a forward-facing curved surface that is forwardly convex and each of the light distributing surface portions 311 of the light shield 3 is a rearward-facing curved surface that is rearwardly convex.
  • the range of illumination of the projection headlamp of the present invention in the transverse direction (T) can be increased.
  • the design of the light distributing structures 511 being forwardly convex and the light distributing surface portions 311 being rearwardly convex facilitates simplifying the molds for making the light distributing structures 511 and the light distributing surface portions 311. In this way, manufacturing cost for molds of the reflector 5 and the light shield 3 can be reduced and the overall manufacturing cost for the projection headlight can thus be reduced.

Claims (5)

  1. Projektionsscheinwerfer für ein Fahrzeug, umfassend
    einen Reflexionsspiegel (2), der einen Montageraum (20) aufweist, der durch eine erste reflektierende Oberflächeneinheit (23) definiert ist;
    eine Lichtabschirmung (3), die in dem Montageraum (20) angeordnet ist, und eine zweite reflektierende Oberflächeneinheit (31) beinhaltet, die nach hinten weist;
    eine Linse (6), die vor dem Reflexionsspiegel (2) und der Lichtabschirmung (3) angeordnet ist,
    einen Reflektor (5), der in dem Montageraum (20) angeordnet ist, hinter der Lichtabschirmung (3) angeordnet ist, und eine dritte reflektierende Oberflächeneinheit (51) beinhaltet, die zur zweiten reflektierenden Oberflächeneinheit (31) weist; und
    eine Lichtausgabeeinheit (7), die in dem Montageraum (20) angeordnet ist, hinter der Lichtabschirmung (3) angeordnet ist, und einen Lichtstrahl ausgibt, der durch die erste reflektierende Oberflächeneinheit (23) zur zweiten reflektierenden Oberflächeneinheit (31) reflektiert wird, und der dann durch die zweite reflektierende Oberflächeneinheit (31) zur dritten reflektierenden Oberflächeneinheit (51) reflektiert wird, um vorwärts durch die Linse (6) hindurch projiziert zu werden, wobei der Projektionsscheinwerfer dadurch gekennzeichnet ist, dass:
    die zweite reflektierende Oberflächeneinheit (31) der Lichtabschirmung (3) mit einer Vielzahl von Lichtverteilungsoberflächenabschnitten (311) gebildet ist, die Seite an Seite in einer Querrichtung (T), quer zu einer Vorwärts-RückwärtsRichtung (X), in der die Linse (6) von dem Reflexionsspiegel (2) beabstandet ist, angeordnet sind, und konfiguriert sind, um Licht zu verteilen, das aus der Lichtausgabeeinheit (7) in der Querrichtung (T) ausgegeben wird, wobei jeder der Lichtverteilungsoberflächenabschnitte (311) eine von einer nach hinten weisenden gekrümmten Oberfläche, die nach hinten konvex ist, und einer nach hinten weisenden gekrümmten Oberfläche ist, die nach vorne konkav ist;
    wobei die dritte reflektierende Oberflächeneinheit (51) des Reflektors (5) mit einer Vielzahl von Lichtverteilungsstrukturen (511) gebildet ist, die Seite an Seite in der Querrichtung (T) angeordnet sind, und konfiguriert sind, um Licht zu verteilen, das aus der Lichtausgabeeinheit (7) in der Querrichtung (T) ausgegeben wird, wobei jede der Lichtverteilungsstrukturen (511) eine von einer nach vorne weisenden gekrümmten Oberfläche, die nach hinten konkav ist, und einer nach vorne weisenden gekrümmten Oberfläche ist, die nach vorne konvex ist.
  2. Projektionsscheinwerfer nach Anspruch 1, dadurch gekennzeichnet, dass eine Wärmeableitungseinheit (4) eine Grundplatte (41), die sich in den Montageraum (20) erstreckt, und thermisch mit dem Reflektor (5) verbunden ist, und eine Vielzahl von Wärmeableitungsrippen (42) beinhaltet, die vollständig mit der Grundplatte (41) verbunden sind.
  3. Projektionsscheinwerfer nach Anspruch 1 oder 2, weiter dadurch gekennzeichnet, dass die dritte reflektierende Oberflächeneinheit (51) des Reflektors (5) auf der Grundplatte (41) durch Vakuumbeschichtung gebildet wird.
  4. Projektionsscheinwerfer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Linse (6) eine konvexe Linse ist, wobei die Linse (6) einen Brennpunkt (61) aufweist, der sich hinter der Linse (6) befindet, wobei die Lichtabschirmung (3) hinter dem Brennpunkt der Linse (6) angeordnet ist.
  5. Projektionsscheinwerfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Reflexionsspiegel (2) einen oberen Reflexionsabschnitt (21), und einen unteren Reflexionsabschnitt (22) beinhaltet, der unter dem oberen Reflexionsabschnitt (21) angeordnet ist, und damit zusammenwirkt, um den Montageraum (20) zu definieren, wobei die erste reflektierende Oberflächeneinheit (23) eine obere reflektierende Oberfläche (231), die auf dem oberen Reflexionsabschnitt (21) gebildet ist, und eine untere reflektierende Oberfläche (232), die auf dem unteren Reflexionsabschnitt (22) gebildet ist, beinhaltet, wobei die Lichtausgabeeinheit (7) ein erstes Lichtausgabeelement (71), das zum oberen Reflexionsabschnitt (21) weist, und das einen Lichtstrahl ausgibt, der durch die obere reflektierende Oberfläche (231) zu der zweiten reflektierenden Oberflächeneinheit (31) reflektiert wird, und ein zweites Lichtausgabeelement (72) beinhaltet, das zum unteren Reflexionsabschnitt (22) weist, und das einen Lichtstrahl ausgibt, der durch die untere reflektierende Oberfläche (232) zur Lichtabschirmung (3) reflektiert wird, und dann durch die Lichtabschirmung (3) reflektiert wird, um zu der Linse (6) projiziert zu werden.
EP19196352.9A 2019-09-10 2019-09-10 Projektionsscheinwerfer Active EP3792548B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19196352.9A EP3792548B1 (de) 2019-09-10 2019-09-10 Projektionsscheinwerfer

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Application Number Priority Date Filing Date Title
EP19196352.9A EP3792548B1 (de) 2019-09-10 2019-09-10 Projektionsscheinwerfer

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EP3792548A1 EP3792548A1 (de) 2021-03-17
EP3792548B1 true EP3792548B1 (de) 2022-11-16

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2196727B1 (de) * 2008-12-09 2014-12-24 Koito Manufacturing Co., Ltd. Fahrzeugausleuchtungslampe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4123130B2 (ja) * 2002-10-28 2008-07-23 市光工業株式会社 ヘッドランプ
JP4544237B2 (ja) * 2006-10-31 2010-09-15 市光工業株式会社 車両用灯具
JP2011100583A (ja) * 2009-11-04 2011-05-19 Koito Mfg Co Ltd 光学ユニット
JP6410341B2 (ja) * 2014-05-23 2018-10-24 株式会社小糸製作所 車両用前照灯

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2196727B1 (de) * 2008-12-09 2014-12-24 Koito Manufacturing Co., Ltd. Fahrzeugausleuchtungslampe

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