Patent ID: 6299334
Filing Date: 2001-10-09
Classification: B60Q,F21S

Abstract:
A vehicle lamp (7) whose light exit opening (5) is covered by an elongate translucent light exit lens (9) which serves as a light guide for a light source (14) which is arranged at one (12) of its narrow end edges, in such a way that it guides light given off by the light source (14) in the longitudinal direction in such a fashion that a part thereof issues at the narrow end edge (20) in opposite relationship to the coupling-in side while a further part of said light is irradiated through the outside surface (10) of the light exit lens (9), characterised in that the light exit lens (9) is curved transversely with respect to the longitudinal direction, and in that its inside surface (24) has an optically effective structure which is formed by a series of strip-shaped regions (26) of the inside surface (24) of the light exit lens,said inside surface (24) being opposite to the outside surface (10),said regions being arranged in mutually juxtaposed relationship in the transverse direction and extending in mutually parallel relationship in the longitudinal direction of the light exit lens (9), and each of said strip-shaped regions (26) being tilted in non-parallel relationship relative to the region of the outside surface (10), which is immediately opposite to it,the extent (.alpha.) of the tilt being different from one strip-shaped region (26) to another in dependence on the curvature transversely with respect to longitudinal direction of the associated region of the outside surface (10), andsaid optically effective structure focusing the light, issuing through the outside surface (10) in cross-sections which are perpendicular to the longitudinal direction, into a preferred angular range.