| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED illuminating device capable of restraining degradation of emission efficiency by making heat radiation of red-color light-emitting diodes more improved than those of other light-emitting parts with different emission colors. <P>SOLUTION: The LED illuminating device 1, made up of a plurality of light-emitting parts 19 to 22 with different emission colors including red-color light-emitting parts 22 each having a red-color light-emitting diode 29 and a substrate 18 mounting the light-emitting parts 19 to 22, includes: LED modules 3 arranged on the substrate 18 so that the red-color light-emitting parts 22 be outside the other light-emitting parts 19, 20, 21 with different emission colors; a metallic device body 2 equipped with LED module mounting parts 10, 11 and an exothermic part 2a inside the LED module mounting parts 10, 11, the device body arranging the LED modules 3 at the LED module mounting parts 10, 11 so that the red-color light-emitting parts 22 be positioned farthest from the exothermic part 2a; and a lighting device 4 supplying power to the light-emitting parts 19 to 22. <P>COPYRIGHT: (C)2010,JPO&INPIT |
