| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture using an LED as an light source, capable of suppressing increase of the LED's temperature by improving the radiation performance of the self-exothermic LED while maintaining the miniaturization, the weight saving, and the reliability, thereby suppressing decrease of the luminous efficiency of the LED to thereby ensure a predetermined amount of irradiated light and to make the manufacturing cost inexpensive. <P>SOLUTION: In this vehicular lighting fixture, the LED 6 and an optical system controlling an optical path of light emitted from the LED 6 are housed in a lamp chamber 4 constituted by a front lens 4 and a housing 3 provided integrally with a fan duct 16, and radiating fins 13 for radiating heat emitted from the LED are disposed outside the lamp chamber 4. The radiating fins 13 are cooled by open air taken in through an open air intake port 14 of the fan duct 16. <P>COPYRIGHT: (C)2008,JPO&INPIT |
