| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal light capable of being versatilely applied to various light sources and surely limiting a visibility angle of light from a light source, with a simple structure and without inviting cost increase.SOLUTION: A visual angle limitation plate 30 limiting a visibility angle of light from an LED 23 is placed facing the front side of an LED unit 20 inside a light housing 11. The visual angle limitation plate 30 is formed with light blocking parts 32, having narrow widths and light-blocking effect and extending in a longitudinal direction, which are arranged to be arrayed in a plurality of rows inside a thin plate-like part transmitting light. Treatment for prevention of at least frontward light reflection is applied to both sides, facing each other, of each of the light blocking parts 32. |
