| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lamp effectively restraining a temperature increase in a case by improving heat radiation efficiency through active heightening heat radiation effect of a heat radiation member. <P>SOLUTION: The LED lamp 10 is composed of: LED lamp units 12 each having at least one LED element irradiating light frontward in the case 11, of which a front side is opened; a front lens 13 made of a translucent material covering the opened front face of the case; a heat radiation member 14 thermally connected to the LED lamp units 12; and a duct 15 for introducing travelling wind of an automobile through. A cross section area of the duct is set similar to that of the heat radiation member facing air flow, and a turbulent flow plate 16 imparting air flow with turbulence is arranged on an upstream side of the heat radiation member in the duct. <P>COPYRIGHT: (C)2007,JPO&INPIT |
