| 摘要 |
<P>PROBLEM TO BE SOLVED: To illuminate a large range of an illumination cover by the small number of monochromatic LED in full colors. <P>SOLUTION: An LED substrate 33 is fixed on an LED cover 34, and an R angle LED 36 to a B angle LED 38 are mounted on the LED substrate 33. The R angle LED 36 to B angle LED 38 project oblique illumination light into the common mix color illumination region S of the LED cover 34 in the LED substrate 33. The mix color illumination region S of the LED cover 34 is illuminated by the monochromatic R angle LED 36 to B angle LED 38 in full colors. Since R angle LED 36 to B angle LED 38 are arranged at equal pitches on a common circular locus C in a circumference direction, the mix color illumination region S of the LED cover 34 is uniformly illuminated. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
