| 摘要 |
PURPOSE:To prevent the generation of a local high-temperature section on a lens located in front of a reflecting mirror. CONSTITUTION:The diffusion property for the light from a light source 11 is applied to a region 5 around an electric lamp fitting hole 4 on the reflecting surface 2 of a reflecting mirror 1. The region 5 is formed with multiple reflecting elements 5a with a hyperbolic paraboloid shape or an elliptic paraboloid shape, for example. The generation of a high-temperature section on a lens 13 due to the concentration of heat is prevented. |
