| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular head lamp that can fulfill both of swivel or leveling function and LED cooling function.SOLUTION: The vehicular head lamp having a light source where a light emission diode 1 is implemented to a substrate 2 includes: a thermal diffusion plate 3 mounted to the substrate 2 so as to be able to transfer heat to the substrate; a holding member 5 integrated to the thermal diffusion plate 3; a heat pipe 4 fitted to the holding member 5 so that one end part 4A of the circular cross section thereof is rotatable; and a heat sink 15 provided at the other end part 4B of the heat pipe 4.SELECTED DRAWING: Figure 1 |
