| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a simple illumination system with high accuracy for obtaining intended illumination light. <P>SOLUTION: The illumination system is composed of a light-emitting device capable of emitting three kinds of light separately, a control device controlling light emission of the light-emitting device, a light detection device capable of selectively detecting the light, and a feedback means generating feedback signals based on an output from the light detection device and supplying it to the control device. The feedback means generates d<SB>xy</SB>=(y<SB>0</SB>/x<SB>0</SB>)*X-Y, and d<SB>yz</SB>=Y-(y<SB>0</SB>/(1-x<SB>0</SB>-y<SB>0</SB>))*Z based on prescribed chromaticities x<SB>0</SB>, y<SB>0</SB>, from tristimulus values X, Y, Z based on the output of the light detection device to be supplied to the control device, and the control device controls light emission of the light emission device so that both differential mode signals d<SB>xy</SB>and d<SB>yz</SB>turn as near to zero as possible. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
