| 摘要 |
PROBLEM TO BE SOLVED: To reduce loss of light and improve utilization of light by providing an anti-reflection film on the end face and a reflecting film on the surface. SOLUTION: This light guide device is provided with a light source device 1 and a light guide unit 4 for leading light from the light source device 1 to the outside, and adapted to distribute light of the light source device 1 to a light disposed in a vehicle through the light guide unit 4. The light guide unit 4 is provided with the anti-reflection films 20 formed at the light incident end 5 and the light outgoing end 7, and the reflection film 22 formed on the surface outside the light incident end 5 and the light outgoing end 7. |
