| 摘要 |
The device (30) has a light source (33) emitting light rays in a light guide (31), and another light source (34) emitting light rays in another light guide (32). The former source and its support (35) and the latter source and its support (36) are symmetrically arranged relative to a plane passing between the guides such that the guides are separated at a distance of about 20, 10, 5 or 2mm at a level of output faces (39, 38) of the guides. The light rays leave the guides at the level of the output faces, respectively. The sources are LEDs, and the supports are printed circuit boards. |
