| 摘要 |
The device (1) has planar reflector panel (2) that is provided with faceted reflector surface structure (8). A light from light source (7a) is irradiated via reflector surface structure in common preferred direction (11). The reflector surface structure is composed of alternately arranged smaller and larger reflector surface pieces (3) that are arranged at equal angles of incidence surface. The reflector surface pieces are continued to rise alternately closer to and away from light source. |
