| 摘要 |
The device has a light source emitting light rays, and an optical guide in which the light rays propagate. The guide has, at one of its ends, an input face ensuring coupling between the light guide and the light source. The guide has, at the level of the elbows, a corner projecting towards the elbows. The corner is beveled by presenting two slots (S1, S2) in order to return the rays incident in the guide. The corner is conceived to cause two reflection successively on the slots in total reflection condition of incident light rays. |
