| 摘要 |
The lighting unit has an electric bulb as a light source arranged in a funnel shaped reflecting mirror. The mirror has a reflecting surface, in which a multiple of fine reflecting planes are arranged non-radially without clearance. The shape of the fine reflecting planes, is at least one shape of a group of circular, elliptical and polygonal shapes. Reflecting planes appear to be honeycomb 0.01 mm long and wide. |
