Lighting device for a vehicle headlight

Patent metadata

Field	Value
Publication number	US-2016010823-A1
Application number	US-201414772820-A
Country	US
Kind code	A1
Filing date	Mar 4, 2014
Priority date	Mar 7, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

The invention relates to a lighting device ( 1 ) for a motor vehicle headlight, wherein the lighting device ( 1 ) has at least one reflector ( 10, 11, 12, 13 ), and assigned to the at least one reflector ( 10, 11, 12, 13 ) is at least one light source ( 20, 21, 22, 23 ), and light from the at least one light source ( 20, 21, 22, 23 ) is radiated into a region in front of the lighting device ( 1 ) by means of the reflector ( 10, 11, 12, 13 ) in order to form a light distribution or a part of a light distribution. The lighting device ( 1 ) has at least one, preferably exactly one reflector support ( 30 ), and the at least one reflector ( 10, 11, 12, 13 ) is fixedly attached to the at least one reflector support ( 30 ), and the at least one light source ( 20, 21, 22, 23 ) is arranged on at least one light source support ( 40, 41, 42, 43 ), and the at least one light source support ( 40, 41, 42, 43 ) is movably mounted on the reflector support ( 30 ) and can be fixed in a defined position relative to the reflector support ( 30 ).

First claim

1 . A lighting device ( 1 ) for a motor vehicle headlight, wherein the lighting device ( 1 ) has at least one reflector ( 10 , 11 , 12 , 13 ), and wherein assigned to the at least one reflector ( 10 , 11 , 12 , 13 ) is at least one light source ( 20 , 21 , 22 , 23 ), and wherein light from the at least one light source ( 20 , 21 , 22 , 23 ) is radiated into a region in front of the lighting device ( 1 ) by means of the reflector ( 10 , 11 , 12 , 13 ) in order to form a light distribution or a part of a light distribution,
characterized in that the lighting device ( 1 ) has at least one, preferably exactly one reflector support ( 30 ), and wherein the at least one reflector ( 10 , 11 , 12 , 13 ) is fixedly fastened on the reflector support ( 30 ), and wherein the at least one light support ( 20 , 21 , 22 , 23 ) is arranged on at least one light source support ( 40 , 41 , 42 , 43 ), and wherein the at least one light source support ( 40 , 41 , 42 , 43 ) is movably mounted on the reflector support ( 30 ) and can be fixed in a defined position relative to the reflector support ( 30 ).

2 . The lighting device according to claim 1 , characterized in that the at least one reflector support ( 30 ) is designed as a main cooling body ( 30 ).

3 . The lighting device according to claim 1 or 2 , characterized in that the at least one light source support ( 40 , 41 , 42 , 43 ) is designed as a light source cooling body ( 40 , 41 , 42 , 43 ).

4 . The lighting device according to any one of claims 1 to 3 , characterized in that the at least one light source support ( 40 , 41 , 42 , 43 )—in the installed position of the lighting device—can be moved vertically relative to the at least one reflector support ( 30 ).

5 . The lighting device according to any one of claims 1 to 4 , characterized in that the at least one reflector support ( 30 ) for the at least one light source support ( 40 , 41 , 42 , 43 ) comprises at least one guide groove ( 31 a , 31 b , 31 c , 31 d )/at least one guide peg and the at least one light source support ( 40 , 41 , 42 , 43 ) comprises at least one corresponding guide peg ( 40 ′, 41 ′, 42 ′, 43 ′)/at least one corresponding guide groove

6 . The lighting device according to claim 5 , characterized in that the at least one guide groove ( 31 a , 31 b , 31 c , 31 d ) is formed on the reflector support ( 30 ) and the at least one corresponding guide peg ( 40 ′, 41 ′, 42 ′, 43 ′) is arranged on the at least one light source support ( 40 , 41 , 42 , 43 ).

7 . The lighting device according to claim 5 or 6 , characterized in that the at least one guide groove ( 31 a , 31 b , 31 c , 31 d ) is elongated and extends in a straight line.

8 . The lighting device according to claim 7 , characterized in that the at least one guide groove ( 31 a , 31 b , 31 c , 31 d ), in the installed position of the lighting device, is arranged so as to extend vertically.

9 . The lighting device according to any one of claims 5 to 8 , characterized in that the at least one guide peg ( 40 ′, 41 ′, 42 ′, 43 ′) is elongated and straight, and extends in the direction of the corresponding guide groove ( 31 a , 31 b , 31 c , 31 d ).

10 . The lighting device according to any one of claims 5 to 9 , characterized in that exactly one guide groove ( 31 a , 31 b , 31 c , 31 d ) and exactly one corresponding guide peg ( 40 ′, 41 ′, 42 ′, 43 ′) are provided for each light source support ( 40 , 41 , 42 , 43 ).

11 . The lighting device according to any one of claims 5 to 10 , characterized in that the at least one guide groove ( 31 a , 31 b , 31 c , 31 d ) or the at least one guide peg ( 40 ′, 41 ′, 42 ′, 43 ′) is interrupted by a fastening opening ( 50 , 51 ) for fastening the light source carrier ( 40 , 41 , 42 , 43 ) on the reflector support ( 30 ).

12 . The lighting device according to any one of claims 1 to 11 , characterized in that two or more reflectors ( 10 , 11 , 12 , 13 ) are provided, wherein assigned to each reflector ( 10 , 11 , 12 , 13 ) is exactly one light source support ( 40 , 41 , 42 , 43 ), each of which has at least one light source ( 20 , 21 , 22 , 23 ), and wherein the light source supports ( 40 , 41 , 42 , 43 ) can be moved and fixed relative to the at least one reflector support ( 30 ).

13 . The lighting device according to claim 12 , characterized in that exactly one reflector support ( 30 ) is provided, and all the light source supports ( 40 , 41 , 42 , 43 ) are movably mounted and fixable on a reflector support ( 30 ).

14 . The lighting device according to claim 13 , characterized by exactly four reflectors ( 10 , 11 , 12 , 13 ) and exactly four assigned light source supports ( 40 , 41 , 42 , 43 ).

15 . The lighting device according to any one of claims 1 to 14 , characterized in that the light sources ( 20 , 21 , 22 , 23 ) are LED light sources, wherein each LED light source ( 20 , 21 , 22 , 23 ) comprises at least one, e.g., exactly one light-emitting diode.

16 . The lighting device according to claim 15 , characterized in that each LED light source ( 20 , 21 , 22 , 23 ) or at least the LED light sources ( 20 , 21 , 22 , 23 ) of different reflectors ( 10 , 11 , 12 , 13 ) can be separately activated and switched on or off and/or dimmed, wherein, preferably, each light-emitting diode of an LED light source can be separately activated and switched on or off and/or dimmed.

17 . The lighting device according to any one of claims 1 to 16 , characterized in that at least one of the reflectors is a high-beam reflector ( 10 , 11 ) for generating a high-beam light distribution or a part of a high-beam light distribution.

18 . The lighting device according to any one of claims 1 to 17 , characterized in that at least one of the reflectors is a low-beam reflector ( 10 , 11 ) for generating a low-beam light distribution or a part of a low-beam light distribution.

19 . A vehicle headlight comprising at least one lighting device according to any one of claims 1 to 18 .

Assignees

• Zizala Lichtsysteme Gmbh

Inventors

• Seyrlehner Christian
• Zeller Christoph

Classifications

• F21S41/151

  arranged in one or more lines · CPC title

• F21S41/336

  with discontinuity at the junction between adjacent areas · CPC title

• F21S41/192 Primary

  Details of lamp holders, terminals or connectors · CPC title

• F21S41/19

  Attachment of light sources or lamp holders (achieving variable light distribution by movable light sources F21S41/657) · CPC title

• F21S41/39

  Attachment thereof (achieving variable light distribution by movable reflectors F21S41/675) · CPC title