| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle headlight unit which enables weight reduction and downsizing and inhibits influences of solar light while securing the volume of light generated by a light-emitting diode and emitted from the vehicle headlight unit to the exterior.SOLUTION: A vehicle headlight unit includes: a light-emitting diode; and a path constitution member which is disposed in a path of light emitted from the light-emitting diode. The path constitution member has a function that lowers the penetration of the light in the path when ultraviolet light is radiated to the path constitution member. |
