| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an underwater light in which a problem of color unevenness caused when a plurality of LED elements with different emission colors are used in underwater is solved, and color mixture property of irradiation light from the plurality of LED elements is improved using a light guide member to further enhance heat radiation performance. <P>SOLUTION: In a case, an LED element 21 emitting white color light and an LED element 22 emitting orange color light are mounted on a substrate 11, and a light guide member 30 having light guide branch portions 31, 32 is installed in the front. The irradiation light from the LED element 21 and the irradiation light from the LED element 22 pass through respectively the corresponding light guide branch portions 31, 32, and then, are guided to a light guide trunk portion 35, and are compounded and mixed by repeating internal reflection in the light guide trunk portion 35, and the mixed light is irradiated to constitute the underwater light. <P>COPYRIGHT: (C)2012,JPO&INPIT |
