Vehicle lamp
First Claim
1. 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 (α
- ) 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), and said 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.
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Accused Products
Abstract
In 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), to improve the light output it is provided that the light exit lens (9) is curved transversely with respect to the longitudinal direction and that its inside surface (24) has an optically effective structure (26, . . . , 26) which focuses the light issuing through the outside surface (10) in the cross-sections which are perpendicular to the longitudinal direction into a preferred angular range.
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Citations
10 Claims
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1. 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 (α - ) 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), and
said 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- ) 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), and
Specification