Patent ID: 9551473
Date: 2017-01-24
CPC Classifications: F21S,G02B

Claim:
1. A lighting device for a motor vehicle, comprising: a light source for sending out a light beam; and a lightguide of elongated shape, the light source attached to an end of the lightguide, the lightguide comprising a plastic, primarily transparent material for guiding the light beam, while an outer surface portion of a mantle of the lightguide forms an exit surface for emergence of rays of light of the light beam, wherein another outer surface portion of the mantle of the lightguide opposite the exit surface comprises a diffuse means that forms a diffuse surface that extends continuously from the end to an opposite end of the lightguide, the diffuse surface formed by a nontransparent coating or foil pressed against the mantle of the lightguide, or a plastic primarily nontransparent material joined to the mantle, the diffuse surface having a width that varies along the lightguide from the end to the opposite end.