| 摘要 |
PROBLEM TO BE SOLVED: To improve the quality of a headlight of an automobile by preventing the occurrence of a resonance with the vibration and shock occurring during movement of an automobile and removing slight movement of a light source and as a result glimmer. SOLUTION: A headlight 1 of an automobile is composed of a base disc 51 and a light source disc 55 with a light source fitting part 56, wherein the base disc 51 is attached to a stationary part 4, the fixed angles turnable freely by a solenoid 6, eccentrically sat a light source disc fitting hole 52 with a helicoidal groove 53 fitted with the outside diameter of the light source disc 55, the light source disc fitting hole 52 is fitted with the light source disc 55 by a helicoidal pin 57, and the light source disc 55 is interconnected to the lighting fixture 4. Consequently, the rigidity of a luminous intensity distribution switching device 5 is improved as the light source 2 is supported by the base disc 51 and the light source disc 55 both firmly supported with the periphery. |
