Light module for a vehicle headlamp

Patent metadata

Field	Value
Publication number	US-10139070-B2
Application number	US-201414767766-A
Country	US
Kind code	B2
Filing date	Feb 13, 2014
Priority date	Feb 14, 2013
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

The invention relates to a light module ( 2 ) for a headlight, in particular a motor vehicle headlight, wherein the light module ( 2 ) comprises:
one or more light sources ( 4 ), which is/are arranged on a light source carrier ( 5 ), at least one auxiliary optical unit ( 6 ), wherein said at least one auxiliary optical unit ( 6 ) can be fastened on the light source carrier ( 5 ) by means of an auxiliary optical unit carrier ( 7 ) such that the light sources ( 4 ), the light source carrier ( 5 ), the at least one auxiliary optical unit ( 6 ), and the auxiliary optical unit carrier ( 7 ) form a light source assembly ( 8 ), a secondary optical unit ( 9 ), which is arranged behind the at least one auxiliary optical unit ( 6 ), in the light exit direction, and is held by a secondary optical unit carrier ( 10 ), and wherein, in addition, an assembly carrier ( 11 ) is provided, relative to which the light source assembly ( 8 ) can be fastened,

and wherein clamping means are provided, by means of which the light source assembly ( 8 ) can be detachably clamped between the secondary optical unit carrier ( 10 ) and the assembly carrier ( 11 ), and wherein, in the detached state of the clamping means, the light source assembly ( 8 ) is displaceable substantially parallel to the assembly carrier ( 11 ).

First claim

The invention claimed is:

1. A light module for a motor vehicle headlight or other headlight, wherein the light module comprises:
one or more light sources, which is/are arranged on a light source carrier;
at least one auxiliary optical unit which is configured to be fastened on the light source carrier by an auxiliary optical unit carrier such that the one or more light sources, the light source carrier, the at least one auxiliary optical unit, and the auxiliary optical unit carrier form a light source assembly;
a secondary optical unit, which is arranged behind the at least one auxiliary optical unit, in the light exit direction, and is held by a secondary optical unit carrier;
an assembly carrier to which the light source assembly is configured to be fastened;
at least one clamping screw with which the light source assembly is configured to be detachably clamped between the secondary optical unit carrier and the assembly carrier, wherein, in a detached state of the at least one clamping screw, in which the at least one clamping screw is detached only so far that the secondary optical unit carrier and the assembly carrier are still connected to one another, the light source assembly is displaceable substantially parallel to the assembly carrier, and wherein the at least one clamping screw directly connects the assembly carrier and the secondary optical unit carrier to one another such that the at least one clamping screw does not extend through the light source assembly; and
at least one locking screw with which the light source assembly is configured to be fixed relative to the assembly carrier, wherein the at least one locking screw fasten the light source assembly on the assembly carrier and the secondary optical unit carrier, and wherein the at least one locking screw extends through a back side of the assembly carrier, through an assigned locking-screw opening in the assembly carrier, and through an assembly opening of the light source assembly, and is configured to be screwed into a corresponding locking-screw thread in the secondary optical unit carrier.

2. The light module of claim 1 , wherein the light module comprises exactly two clamping screws.

3. The light module of claim 1 , wherein the light source assembly is mounted within the secondary optical unit carrier so as to be displaceable horizontally relative to an installation position of the light module.

4. The light module of claim 1 , wherein the at least one assembly opening is designed as a slot.

5. The light module of claim 1 , wherein the light module comprises exactly two locking screws having assigned openings or threads.

6. The light module of claim 1 , wherein the at least one assembly opening is formed on the auxiliary optical unit carrier.

7. The light module of claim 1 , wherein the auxiliary optical unit carrier is configured to be detachably fastened on the light source carrier.

8. The light module of claim 1 , wherein the assembly carrier has a tool opening for the insertion of a displacement tool with which the light source assembly is configured to be displaced.

9. The light module of claim 1 , wherein the assembly carrier is a heat sink.

10. The light module of claim 1 , wherein the one or more light sources are LED light sources, wherein each LED light source comprises at least one light-emitting diode, and wherein the light source carrier is designed as an LED printed circuit board.

11. The light module of claim 1 , wherein the secondary optical unit is a projection lens or other lens.

12. A lighting device for a motor vehicle or for a motor vehicle headlight, comprising at least one light module of claim 1 .

13. The light module of claim 4 , wherein the slot extends in a horizontal direction, substantially normal to the light exit direction.

14. The light module of claim 7 , wherein the auxiliary optical unit carrier is detachably snapped into or clipped onto the light source carrier.

15. The light module of claim 8 , wherein the light source assembly has an adjustment opening, which is disposed opposite the tool opening, wherein the adjustment opening is disposed on the auxiliary optical unit carrier, and into which adjustment opening the displacement tool engages via a tool section.

16. The light module of claim 15 , wherein the displacement tool has a tool mounting section, which has a circular cross section, is rotatably mounted in the tool opening, which also has a circular configuration, and wherein the tool section disposed outside of the axis of rotation of the displacement tool.

17. The light module claim 15 , wherein the adjustment opening is a slot, which extends normally relative to the displacement direction and lies in the displacement plane of the light source assembly.

18. The light module of claim 10 , wherein the auxiliary optical unit comprises two or more light exit surfaces, which are separated from one another, and wherein light is configured to be radiated from at least one LED light source via each light exit surface.

19. The light module of claim 10 , wherein the LED light sources are configured to be separately activated and switched on or off and/or dimmed.

20. The light module of claim 19 , wherein each light-emitting diode of an LED light source is configured to be separately activated and switched on or off and/or dimmed.

21. The lighting device of claim 12 , wherein the lighting device comprises two or more of said at least one light module.

22. The lighting device of claim 12 , wherein the at least one light module is mounted on a carrier body such that the at least one light module is displaceable in the vertical direction or is pivotable about a horizontal axis.

23. A vehicle headlight comprising at least one lighting device of claim 12 .

24. The lighting device of claim 21 , wherein the two or more light modules in combination are set up to generate a light distribution.

25. The lighting device of claim 21 , wherein the two or more light modules are disposed on a common carrier body.

26. The lighting device of claim 22 , which comprises two or more of the at least one light module and all of the light modules are mounted on the carrier body such that each one of the light modules is displaceable in the vertical direction or pivotable about the horizontal axis.

Assignees

• Zizala Lichtsysteme Gmbh
• Zkw Group Gmbh

Inventors

• Reitegger Oliver
• Maier Udo

Classifications

• F21S41/25

  Projection lenses · CPC title

• F21S41/255

  Lenses with a front view of circular or truncated circular outline · CPC title

• B60Q1/0683

  Adjustable by rotation of a screw · CPC title

• F21S41/19

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

• F21S41/295

  specially adapted to projection lenses · CPC title