Light module and headlight provided with such a module

Patent metadata

Field	Value
Publication number	US-2016195232-A1
Application number	US-201514963544-A
Country	US
Kind code	A1
Filing date	Dec 9, 2015
Priority date	Dec 10, 2014
Publication date	Jul 7, 2016
Grant date	—

Abstract

A light module for a motor vehicle headlight comprising first and second light radiation sources suitable for emitting light radiations to a wavelength conversion device which is likely to re-emit a light radiation to an optical projection system to produce a light beam, wherein the module comprises a single wavelength conversion device which is common to the radiations of the first and second sources, and the first light radiation source comprises at least one first light source suitable for emitting a first light beam which cooperates with a first scanning system, the first scanning system being provided with a means for deflecting the light rays emitted by the first light source and configured to scan the conversion device with the first light beam in a first direction.

First claim

What is claimed is:

1 . A light module for a motor vehicle headlight comprising first and second light radiation sources suitable for emitting light radiations (L 1 , L 2 ) to a wavelength conversion device which is likely to re-emit a light radiation to an optical projection system to produce a light beam wherein said light module comprises a single wavelength conversion device which is common to light radiations (L 1 , L 2 ) of said first and second light radiation sources, and said first light radiation source comprises at least one first light source suitable for emitting a first light beam which cooperates with a first scanning system, said first scanning system being provided with a means for deflecting light rays emitted by said first light radiation source and configured to scan said single wavelength conversion device with said first light beam in a first direction.

2 . The light module according to claim 1 , wherein said second light radiation source is static or quasi-static, comprising at least one second light source configured to emit a second light beam directly onto a beam-forming member, for example a reflector.

3 . The light module according to claim 1 , wherein said second light radiation source comprises at least one second light source which cooperates with a second scanning system in a single direction.

4 . The light module according to claim 1 , wherein said second light radiation source comprises at least one second light source which cooperates with a second scanning system in two directions.

5 . The light module according to any claim 4 , wherein said second scanning system is provided with one or two mobile micro-mirrors configured to scan said single wavelength conversion device with said second light beam in a first direction and/or a second direction substantially at right angles to said first direction.

6 . The light module according to claim 1 , wherein said first light radiation source is suitable for emitting a light radiation (L 1 ) onto a first zone of said single wavelength conversion device, and said second light radiation source is suitable for emitting a light radiation (L 2 ) onto a second zone of said single wavelength conversion device, said first zone and said second zone overlapping only over a strip, notably central, of said single wavelength conversion device.

7 . The light module according to claim 1 , wherein said first and second light radiation sources are each suitable for emitting a light radiation (L 1 ,L 2 ) onto a same zone of said signal wavelength conversion device, notably onto all of a surface of said single wavelength conversion device.

8 . The light module according to claim 1 , wherein said first and second radiation sources are arranged on either side of said single wavelength conversion device.

9 . The light module according to claim 8 , wherein said light module comprises a support provided with a central wall bearing said single wavelength conversion device, and two lateral walls, one bearing said first light radiation source and the other bearing said second light radiation source.

10 . The light module according to claim 1 , wherein said single wavelength conversion device is arranged in an axis of said optical projection system.

11 . A motor vehicle headlight comprising a light module according to claim 1 .

12 . The light module according to claim 2 , wherein said first light radiation source is suitable for emitting a light radiation (L 1 ) onto a first zone of said single wavelength conversion device, and said second light radiation source is suitable for emitting a light radiation (L 2 ) onto a second zone of said single wavelength conversion device, said first zone and said second zone overlapping only over a strip, notably central, of said single wavelength conversion device.

13 . The light module according to claim 3 , wherein said first light radiation source is suitable for emitting a light radiation (L 1 ) onto a first zone of said single wavelength conversion device, and said second light radiation source is suitable for emitting a light radiation (L 2 ) onto a second zone of said single wavelength conversion device, said first zone and said second zone overlapping only over a strip, notably central, of said single wavelength conversion device.

14 . The light module according to claim 4 , wherein said first light radiation source is suitable for emitting a light radiation (L 1 ) onto a first zone of said single wavelength conversion device, and said second light radiation source is suitable for emitting a light radiation (L 2 ) onto a second zone of said single wavelength conversion device, said first zone and said second zone overlapping only over a strip, notably central, of said single wavelength conversion device.

15 . The light module according to claim 2 , wherein said first and second light radiation sources are each suitable for emitting a light radiation (L 1 ,L 2 ) onto a same zone of said single wavelength conversion device, notably onto all of a surface of said single wavelength conversion device.

16 . The light module according to claim 3 , wherein said first and second light radiation sources are each suitable for emitting a light radiation (L 1 ,L 2 ) onto a same zone of said single wavelength conversion device, notably onto all of a surface of said single wavelength conversion device.

17 . The light module according to claim 4 , wherein said first and second light radiation sources are each suitable for emitting a light radiation (L 1 ,L 2 ) onto a same zone of said single wavelength conversion device, notably onto all of a surface of said single wavelength conversion device.

18 . The light module according to claim 5 , wherein said first and second light radiation sources are each suitable for emitting a light radiation (L 1 ,L 2 ) onto a same zone of said single wavelength conversion device, notably onto all of a surface of said single wavelength conversion device.

19 . The light module according to claim 2 , wherein said first and second radiation sources are arranged on either side of said single wavelength conversion device.

20 . The light module according to claim 2 , wherein said single wavelength conversion device is arranged in an axis of said optical projection system.

Assignees

• Valeo Vision

Inventors

• Boinet Loic

Classifications

• F21S41/176

  Light sources where the light is generated by photoluminescent material spaced from a primary light generating element · CPC title

• F21S41/663

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

• F21V9/00

  Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters (coloured shades F21V1/00; elements characterised by cooling arrangements F21V29/502) · CPC title

• F21S41/25

  Projection lenses · CPC title

• F21S41/16 Primary

  Laser light sources · CPC title