Vehicle lighting device using a multiple-source optical lens

Patent metadata

Field	Value
Publication number	US-9879838-B2
Application number	US-201514854310-A
Country	US
Kind code	B2
Filing date	Sep 15, 2015
Priority date	Sep 16, 2014
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A part made of transparent material comprising at least two individual portions each consisting of an input surface and an output surface, the output surface being focused on the input surface of the same portion, the output surfaces being contiguous so as to form an overall output surface of the part which is continuous. Furthermore, the input surfaces are separated at a distance from one another in order to prevent rays from a light source placed on the input surface of a portion from being able to pass through the output surface of the adjacent individual portion.

First claim

What is claimed is:

1. A part made of transparent material comprising at least two individual portions, each of said at least two individual portions comprising an input surface and an output surface, each of said output surface of said at least two individual portions having a focus that is focused on said input surface of the same one of said at least two individual portions, said output surfaces of said at least two individual portions being contiguous so as to form an overall output surface of said part which is of a single piece, and said input surfaces being at a distance from one another by being separated by means suitable for preventing rays from a light source placed on said input surface of one of said at least two individual portions from being able to pass through said output surface of an adjacent individual portion.

2. The part according to claim 1 , in which said means comprise walls originating on each of said input surfaces and extending toward a corresponding one of said output surfaces.

3. The part according to claim 2 , in which each of said walls extends toward an edge delimiting said output surface.

4. The part according to claim 2 , in which said at least two individual portions are aligned, two of said input surfaces of the two end individual portions being edged by a single wall, and said input surfaces of the other individual portions each being edged by two walls.

5. The part according to claim 2 , in which each of said walls has a dished profile.

6. The part according to any claim 2 , having a number of hollows each delimited by a wall of an individual portion and a wall of the adjacent individual portion.

7. The part according to claim 1 , in which said output surface and said input surface of a single portion are facing one another.

8. The part according to claim 1 , in which each of said output surfaces is convex relative to an outside of said part.

9. A light module comprising a part made of transparent material according to claim 1 , a substrate and at least two light sources located in said substrate, said at least two light sources lighting said input surfaces of two adjacent individual portions, respectively, the beams from said input surface being able to pass only through said output surface of the same individual portion, separation means preventing said beams from passing through said output surface of an adjacent on of said at least two individual portions.

10. The light module according to claim 9 , in which each of said at least two light sources consists of a light-emitting diode.

11. The light module according to claim 9 , in which said substrate has a surface for location of said at least two light sources, said surface having a central lead such that said at least two light sources placed in end zones of said surface are set back from those placed on said lead relative to a direction of emission of the light by said at least two light sources.

12. The light module according to claim 11 , in which said at least two light sources are LEDs comprising at least one photo-emissive element and at least one of said at least two light sources in which the edges of said at least one photo-emissive element exhibit, in front view, a different orientation from those of another LED.

13. A vehicle light device comprising at least one light module according to claim 9 .

14. The vehicle light device according to claim 13 , comprising:
a housing intended to be fixed onto a vehicle,
a glass plate for closing said housing,
said at least one light module being housed inside a space delimited by said housing and said closing glass plate, said vehicle light device being arranged in such a way that the rays outgoing from said overall output surface directly reach said closing glass plate.

15. The vehicle light device according to claim 13 , in which the rays emitted by said at least one module as output from said overall output surface of said at least one module form a portion or all of a road lighting, indication or vehicle interior lighting beam.

16. The part according to claim 3 , in which individual portions are aligned, two input surfaces of two end individual portions being edged by a single wall, and input surfaces of the other individual portions each being edged by two walls.

17. The part according to claim 3 , in which each wall has a dished profile.

18. The part according to claim 4 , in which each wall has a dished profile.

19. The light module according to claim 10 , in which said substrate has a surface for location of said at least two light sources, said surface having a central lead such that said at least two light sources placed in end zones of said surface are set back from those placed on said lead relative to a direction of emission of the light by said at least two light sources.

20. The vehicle light device according to claim 14 , in which the rays emitted by said at least one module as output from said overall output surface of said at least one module form a portion or all of a road lighting, indication or vehicle interior lighting beam.

Assignees

• Valeo Vision

Inventors

• Meyrenaud Jean-Luc

Classifications

• F21S45/48

  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 · CPC title

• F21S41/29

  Attachment thereof (for achieving variable light distribution F21S41/63) · CPC title

• F21S41/143

  the main emission direction of the LED being parallel to the optical axis of the illuminating device · CPC title

• F21S43/27

  Attachment thereof · CPC title

• F21S43/241

  of complex shape · CPC title