Lighting device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10845019-B2
Application number	US-201816029137-A
Country	US
Kind code	B2
Filing date	Jul 6, 2018
Priority date	Jul 6, 2017
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

A lighting device, including an array of at least two light sources of the light emitting semiconductor type and an array of at least a first illumination element and a second illumination element, each illumination element being associated with one of the light sources and configured for being lit the associated light source in such a way that a light beam emitted by the light source exhibits a shape dependent on a shape of the illumination element, the first illumination element being of trapezoidal shape having a large base and the second illumination element having a shape partially complementary to the trapezoidal shape and including two edges extending from two opposite ends of the large base, parallel with each other, being distant by at least a length of the order of the length of the large base.

First claim

The invention claimed is:

1. Lighting device for a motor vehicle, comprising an array of at least two light sources of the light emitting semiconductor type and an array of at least a first illumination element and a second illumination element, each illumination element being in one-to-one correspondence with one of the light sources and configured for being illuminated by said associated light source in such a way that a light beam is shaped based on a shape of the respective illumination element,
the first illumination element being of trapezoidal shape having two opposite parallel sides, called bases, such that one of the bases, called the large base, is longer than a length of the other base, called the small base, said first illumination element also having two triangular portions that are not parallel with each other and connecting the large base and the small base, and
the second illumination element including a three-dimensional recessed portion partially complementary to the first illumination element, the recessed portion having the two triangular side portions that extend perpendicular to the trapezoidal shape from two opposite ends of the large base, parallel with each other, being distant by at least a length of the order of the length of the large base and having a rectangular portion that extends perpendicular to the large base.

2. Lighting device according to claim 1 , comprising at least three light sources and three illumination elements, the third illumination element extending from the large base of the first element of trapezoidal shape in a direction opposite to the edges of the second illumination element complementary to the first illumination element.

3. Lighting device according to claim 1 , comprising a bar of at least three aligned illumination elements of trapezoidal shape.

4. Lighting device according to claim 1 , wherein each illumination element is a lens.

5. Lighting device according to claim 1 , comprising a module for projection to infinity at the output of the array of illumination elements.

6. Lighting device according to claim 5 , wherein the module for projection to infinity comprises at least one lens.

7. Lighting device according to claim 1 , comprising two lenses and a diaphragm for filtering light rays disposed between the two lenses.

8. Lighting system for a motor vehicle, comprising two lighting devices according to claim 1 .

9. Lighting device according to claim 2 , wherein each illumination element is a lens.

10. Lighting device according to claim 3 , wherein each illumination element is a lens.

11. Lighting device according to claim 2 , comprising a module for projection to infinity at the output of the array of illumination elements.

12. Lighting device according to claim 3 , comprising a module for projection to infinity at the output of the array of illumination elements.

13. Lighting device according to claim 4 , comprising a module for projection to infinity at the output of the array of illumination elements.

14. Lighting device according to claim 2 , comprising two lenses and a diaphragm for filtering light rays disposed between the two lenses.

15. Lighting device according to claim 3 , comprising two lenses and a diaphragm for filtering light rays disposed between the two lenses.

16. Lighting device according to claim 4 , comprising two lenses and a diaphragm for filtering light rays disposed between the two lenses.

17. Lighting device according to claim 5 , comprising two lenses and a diaphragm for filtering light rays disposed between the two lenses.

18. Lighting device according to claim 6 , comprising two lenses and a diaphragm for filtering light rays disposed between the two lenses.

19. Lighting system for a motor vehicle, comprising two lighting devices according to claim 2 .

Assignees

• Valeo Vision

Inventors

• Doha Jean-Francois
• Giraud Sylvain
• Gromfeld Yves
• Laminette Maxime

Classifications

• F21S41/62

  for adaptation between right-hand and left-hand traffic · CPC title

• F21S41/43

  characterised by the shape thereof · CPC title

• F21S41/663

  by switching light sources (by switching incandescent light sources F21S41/162) · CPC title

• F21S41/153

  arranged in a matrix · CPC title

• F21S41/25

  Projection lenses · CPC title