| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To simplify the configuration of a light source apparatus consisting of a plurality of types of LEDs. <P>SOLUTION: Two types of LEDs 26, 27 having different light-emitting colors constitute each of element arrays Ly, Lm in which the plurality of LEDs 26, 27 are connected. The element arrays Ly, Lm are each driven by a driver IC 28, and are selectively lighted on. The driver IC 28 is provided with a plurality of constant voltage driving channels Ch. Two arrays of an element array Ly and an element array Lm which are adjacent constitute one group. One driving channel Ch is allocated for each group, and is commonly used by each of the element arrays Ly, Lm. With this configuration, the number of components is reduced and the structure of the apparatus can be simplified. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
