| 摘要 |
PROBLEM TO BE SOLVED: To increase the luminance for a unit area and improve visibility by arranging a light guide divided into multiple portions at the tip section on a recess provided on the inside of a colored retroreflector, and emitting the light of a light source unit in a dot shape. SOLUTION: A case 2 and a fixed member 4 are made by aluminum die casting, and a retroreflector 3 is made of colored polycarbonate. A light source unit 5 is integrally formed with a halogen lamp 6 and a condensing reflecting mirror 7, and it is supported by a light source bracket 11 so that the optical axis becomes nearly parallel with the retroreflector 3. The base end section 13a of a light guide 13 bundled with multiple flexible optical fibers is arranged at the opposite position to the light source unit 5, and multiple branched tip sections 13b are inserted into multiple recesses formed on the inside face section of the retroreflector 3 respectively. The retroreflector 3, a support plate 14, and light guide 13 can be integrally removed. Excellent visibility can be exerted in the poor weather. |
