Lighting device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-11788701-B2
Application number	US-202017627605-A
Country	US
Kind code	B2
Filing date	Jul 10, 2020
Priority date	Jul 15, 2019
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

Lighting device, in particular for a motor vehicle, including at least two lighting modules and at least one support member supporting the lighting modules. Each lighting module includes at least one light source capable of emitting light rays and an optical system arranged, on a specific optical axis of the lighting module, across the light rays and configured to project a light beam. The support member supporting the different lighting modules is, on the one hand, rigidly connected to a closing element incorporating at least two optical systems and, on the other hand, connected to at least a first adjustment system enabling one of the lighting modules to move independently relative to at least the other lighting module.

First claim

The invention claimed is:

1. A lighting device, notably for a motor vehicle, comprising at least two lighting modules and at least one support member supporting said lighting modules, each lighting module comprising at least one light source able to emit rays of light and an optical system positioned, on an optical axis specific to the lighting module, across the rays of light and configured to project a beam of light, wherein the support member supporting the various lighting modules is, on the one hand, secured to a closure element incorporating at least two optical systems and, on the other hand, connected to at least a first adjusting system allowing one of the lighting modules to be moved independently with respect to at least the other lighting module.

2. The lighting device as claimed in claim 1 , wherein each lighting module is mounted on the support member via a first adjusting system comprising translational-guidance means guiding the lighting module with respect to the support member, the lighting device being configured so that the translational-guidance means are oriented in different directions.

3. The lighting device as claimed in claim 1 , wherein each first adjusting system comprises, in addition to the translational-guidance means guiding the lighting module with respect to the support member, on the one hand, position-stop means and adjusting means for adjusting the translational movement of the lighting module.

4. The lighting device as claimed in claim 3 , wherein the position-stop means and the adjusting means comprise at least one oblong element and a circular element which are formed respectively on one or the other of the lighting module and the support member and positioned facing one another, the oblong element of the position-stop means extending in a direction substantially perpendicular to the direction in which the oblong element of the adjusting means extends.

5. The lighting device as claimed in claim 3 , wherein the first adjusting system(s) are configured so that the translational-guidance means are inside a first volume defined by the support member and the closure element, and so that the position-stop means and the adjusting means respectively comprise a binding screw or a tool passing through a base of the support member.

6. The lighting device as claimed in claim 1 , wherein the position of the support member is adjusted by a second adjusting system, said second adjusting system being configured to simultaneously adjust the position of the various lighting modules.

7. The lighting device as claimed in claim 6 , wherein the second adjusting system is configured to move the support member in a rotational movement about a first axis of pivoting or about a second axis of pivoting, the first axis of pivoting and the second axis of pivoting being substantially perpendicular to the optical axis and substantially perpendicular to one another.

8. The lighting device as claimed in claim 1 , wherein the closure element comprises side walls for fixing to the support member and a thin projection lens which incorporates at least the optical systems of said lighting modules, the thin projection lens formed in the closure element and the optical systems being made from the one same material.

9. The lighting device as claimed in claim 8 , comprising an external housing open on at least one side and closed by an optically neutral protective window, the external housing and the protective window delimiting a main chamber in which there extend the support member, the various lighting modules and at least the closure element incorporating the optical systems of at least two lighting modules.

10. The lighting device as claimed in claim 1 , wherein the support member takes the form of an open housing equipped with opaque side walls and covered by a protective window, the protective window being made of a transparent and optically neutral first material, and the protective window comprising at least the optical systems of at least two distinct lighting modules, the optical systems consisting of thin projection lenses made from a second material distinct from the first material of the protective window.

11. The lighting device as claimed in claim 1 , wherein each lighting module comprises a collector in the direction of which the light source emits its rays, said collector being equipped with a reflective surface configured to deflect the rays of light emitted by the light source in the direction of the optical system.

12. The lighting device as claimed in claim 11 , wherein the optical system is configured to project an image of the reflective surface of the collector.

13. The lighting device as claimed in claim 12 , wherein the collector has an end edge in the vicinity of the light source with a specific profile which contributes to giving the projected image an appropriate profile, and notably an appropriate cut-off, for performing a desired optical function.

14. The lighting device as claimed in claim 13 , wherein the end edge of the collector is cut off in such a way as to exhibit a staircase profile.

15. The lighting device as claimed in claim 11 , wherein the collector has an elliptical or parabolic shape.

16. A motor vehicle comprising at least one lighting device as claimed in claim 1 , formed on the front face and/or on the rear face of the motor vehicle.

17. The lighting device as claimed in claim 2 , wherein each first adjusting system comprises, in addition to the translational-guidance means guiding the lighting module with respect to the support member, on the one hand, position-stop means and adjusting means for adjusting the translational movement of the lighting module.

18. The lighting device as claimed in claim 4 , wherein the first adjusting system(s) are configured so that the translational-guidance means are inside a first volume defined by the support member and the closure element, and so that the position-stop means and the adjusting means respectively comprise a binding screw or a tool passing through a base of the support member.

19. The lighting device as claimed in claim 2 , wherein the position of the support member is adjusted by a second adjusting system, said second adjusting system being configured to simultaneously adjust the position of the various lighting modules.

Assignees

• Valeo Vision

Inventors

• Colombel Jean-Marc
• Hermitte Michel
• Giraud Sylvain

Classifications

• F21S41/192 Primary

  Details of lamp holders, terminals or connectors · CPC title

• F21S41/148

  the main emission direction of the LED being perpendicular to the optical axis · CPC title

• F21S41/27

  Thick lenses · CPC title

• F21S41/285

  Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805 · CPC title

• F21S41/321

  the reflector being a surface of revolution or a planar surface, e.g. truncated · CPC title