| 摘要 |
To provide a variable color illumination apparatus enabling illumination with a suitable colors even when characteristics change in accordance with aging or other aspects of the environment and having a reproducibility of colors stable for a long period. The variable color illumination apparatus has light sources ( 15 ) of at least two colors, a control device ( 30 ) for independently performing light adjustments of the respective light sources ( 15 ), one light receiving device ( 83 ) for detecting light emission amounts of light sources ( 15 ), a memory device ( 71 ) storing light quantity ratios of the respective light sources ( 15 ) preset for obtaining desired light colors, and a central processing unit ( 50 ) for finding changes between light quantity ratios of the respective light sources ( 15 ) detected at the light receiving device ( 83 ) and preset light quantity ratios and outputting the changes as correction outputs to the control device ( 30 ).
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