| 摘要 |
<p>PURPOSE:To minimize the influence of heating between lighting circuits and reduce the unnecessary radiated electromagnetic noise outputted downward. CONSTITUTION:A light emitting part 1 has a plurality of light sources 1a-1d different in emitted light color. The color temperature of the light emitted from the light emitting part 1 is selected by a selection part, The color control data showing the mixing ratio of the respective lights of the light source 1a-1d is stored in a memory part. The color control data necessary for providing the color temperature selected by the selection part is outputted from the memory part. On the basis of the color control data, each light source 1a-1d is light-controlled and lighted by the lighting circuits 2a to 2d of a lighting control part. The lighting circuits 2b, 2d having comparatively large outputs in all areas of color temperature possible to set are arranged above the lighting circuits 2a, 2c having relatively small outputs.</p> |
