Signalling or lighting apparatus, in particular for a motor vehicle
AssigneeValeo Vision
InventorJean-Claude Gasquet
Life of this patent
Estimating the term…
Abstract
A signalling or lighting apparatus comprising at least one light source defining a main emission direction, together with at least one elongate light guide, one end of which is lit by the light source, the light guide being adapted to diffuse the light transversely along its length. At least in the vicinity of the light source, the guide has a longitudinal axis which is disposed transversely to the main emission direction, in such a way that some of the light flux from the light source provides a primary signalling or lighting function with a relatively high luminous intensity, and a second signalling or linear lighting function, of lesser light intensity, is provided along a length of the light guide.
Claims14
A signalling or lighting apparatus for a motor vehicle, comprising:
- (a) at least one light source which emits a light flux having a main direction of light emission;
- (b) an optical system comprising a supplementary lens of transparent material and having facets oriented at appropriate angles to provide internal reflections of the light before it is emitted for concentrating a part of the light flux emission in the main direction;
- and
- (c) at least one light guide comprising an elongate body having a first end face, a second end face and a peripheral side surface extending between the first end face and the second end face, the first end face disposed adjacent the light source and transverse to the main direction of the light flux,
- wherein a part of the light flux emitted from the light source provides, independently of the light guide, a first signalling or lighting function with a first light intensity, and another part of the light flux emitted from the light source enters through the first end face of the light guide and is emitted through the peripheral side surface of the light guide to provide a second signalling or lighting function having a second light intensity that is less than the first light intensity.
Dependencies are inferred from the claim text.