| 摘要 |
<p>A lighting or signalling device, comprising light source(s) (10) and optical output system(s) (16) to form the light beam for illumination or signalling and an optical input system consisting of a collimator (12) receiving light rays from the source and emitting a beam (14) of parallel rays to the output system, includes at least one flat reflecting surface (20) located in the trajectory of the beam of parallel rays.</p> |
