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US 2017/0246983 A1Published application
Vehicle lighting device with presentation of driving assistance information
AssigneeValeo Vision
InventorsThomas CANONNE, Antoine DE LAMBERTERIE, Guillaume THIN, Samira MBATA, Olivier-Sebastien LESAFFRE
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Abstract
A lighting device of a vehicle includes at least one lighting device for a road scene in front of the vehicle arranged to form a first light beam defined by a first lighting. A device for generating a second light beam defined by a second lighting is configured to superimpose the second beam on the first light beam. A sum of the first lighting and of the second lighting is greater than the first lighting, the second light beam forms driving assistance information.
Claims17
1:
- Lighting device of a vehicle comprising at least one lighting means for a road scene in front of the vehicle, arranged to form a first light beam defined by a first lighting, and a device for generating a second light beam defined by a second lighting configured to superimpose the second beam on the first light beam, in which a sum of the first lighting and of the second lighting is greater than the first lighting and in which the second light beam forms driving assistance information.
2:
- Device according to claim 1, wherein the lighting of the first beam in a portion of the road scene lying between three meters and fifteen meters in front of the vehicle lies between 20 lux and 50 lux.
3:
- Device according to claim 1, wherein the lighting of the first beam is equal to 30 lux.
4:
- Device according to claim 1, wherein the lighting means is arranged with the lighting of the first beam to be constant in a portion of the road scene lying between three meters and fifteen meters in front of the vehicle.
5:
- Device according to claim 1, wherein a contrast between the first and the second light beams lies between zero exclusive and five.
6:
- Device according to claim 1, wherein the lighting of the second beam in a portion of the road scene lying between three meters and fifteen meters in front of the vehicle lies between 30 lux and 150 lux.
7:
- Device according to claim 1, wherein the lighting means and the device for generating the second beam share at least one same light source which generates the first light beam and the second light beam.
8:
- Device according to claim 7, wherein the light source is pixelated.
9:
- Device according to claim 8, in which the light source is formed by a matrix of individual light sources which extend in a same plane (π).
10:
- Device according to claim 1, wherein the lighting means comprises at least one optical system whose focal plane coincides with the plane (π) in which the individual light sources extend.
11:
- Device according to claim 8, wherein the light intensity of a plurality of light sources can be controlled individually.
12:
- Device according to claim 1, wherein the lighting means and the device for generating the second beam are formed by at least one same assembly comprising at least one light source emitting a beam of light rays, a scanning system receiving the beam of light rays and distributing it over a surface of a wavelength conversion device.
13:
- Device according to claim 1, wherein the lighting means and the device for generating the second beam are formed by at least one same assembly comprising a uniform light source and an LCD screen.
14:
- Device according to claim 1, wherein the lighting means and the device of the second beam are formed by at least one same assembly comprising a uniform light source and micro-mirrors.
15:
- Device according to claim 1, wherein the second light beam is configured to be superimposed on the first light beam in at least a part of the first light beam, this part corresponding to an area of the road scene.
16:
- Device according to claim 1, wherein the second lighting of the second light beam is greater than the first lighting of the first light beam.
17:
- Headlight of a motor vehicle comprising a lighting device according to claim 1.