| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate the drawbacks that, as a number of LEDs should be disposed when the LEDs are used for general illumination, therefore the LED can not be made full use of a mall size features, and a cost is also raised. <P>SOLUTION: As a means for efficiently letting out heat generated by the LED, the LEDs are mounted on the surface of a metal pipe through which liquid for cooling the LED element is run, and the LED element is cooled with a convective heat transfer by naturally convecting or a forcedly convecting the liquid for cooling. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
