| 摘要 |
The system has a LED (12) for emitting light rays (14) along an emission direction (Z), in a path (Z1). A reflector (16) has a mirror (18), and a series of return facets (20) e.g. complex surfaces, alternatively arranged with lateral facets (22). The mirror directs the light rays from the LED towards the return facets. Each return facet redirects the same quantity of the light rays along an output direction in another path (Z2) opposite to the path (Z1). The output direction is parallel to the emission direction. |
