| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting system of a component capable of reducing the number of components, reducing cost, and preventing uneven illumination by forming a reflector for guiding light from a light source to the back of a component fixed to a panel in a truncated cone shape whose bottom is a circle covering the whole back surface of the component. SOLUTION: A reflector 3 is arranged between a light source 2 and a self illumination dial 1. The reflector 3 is formed in a truncated cone shape and equal distance lines from the self illumination dial 1 form a circle. The reflector 3 forms a reflecting surface with a conical surface 3b whose surrounding bottom is a circle 3a completely covering the back of a light emitting surface 1a of the self illumination dial 1 and a plane part 3c extending backward from the periphery of the light emitting surface 1a. In the reflector 3, since the equal distance lines from the light emitting surface 1a forms a circle, light is uniformly irradiated to the light emitting surface 1a. Since the plane part 3c is vertical to the light emitting surface 1a, generation of any unevenness of light as viewed from the front can be prevented. |
