PROBLEM TO BE SOLVED: To simply adjust illumination to desired color or brightness.SOLUTION: Illumination devices 11, 12 are capable of changing color and brightness of emitted light. An operation panel 21 accepts designation of parameters of three axes of the color space by specifying two axes. The illumination control device controls the illumination devices 11, 12 so that they emit light with color and brightness corresponding to values of parameters of the three axes of the color space designated by the two axis designating operation on the operation panel 21.SELECTED DRAWING: Figure 9
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