ILLUMINATION CONTROL SYSTEM

To more effectively give to a user a feeling of fluctuation caused by color tone change in a space in which light is superposed.SOLUTION: An illumination control system comprises: a first illumination apparatus for irradiating a first region; a second illumination apparatus for irradiating a second region; and a controller for controlling the first illumination apparatus and the second illumination apparatus. The controller comprises: a control signal generator for generating a first control signal for controlling the first illumination apparatus and a second control signal for controlling the second illumination apparatus; and a driver for controlling illumination of the first illumination apparatus on the basis of the first control signal and controlling illumination of the second illumination apparatus on the basis of the second control signal. At least a part of the second region overlaps with the first region. The first region is wider than the second region. A time width of step variation in brightness or excitation purity of the first illumination apparatus is larger than a time width of step variation in brightness or excitation purity of the second illumination apparatus. The brightness of the first illumination apparatus is lower than the maximum brightness in one cycle of brightness variation of the second illumination apparatus.SELECTED DRAWING: Figure 1A 【課題】光が重畳するような空間で色調変化によるゆらぎ感覚をより効果的にユーザに与える。【解決手段】第１領域を照射する第１照明機器、第２領域を照射する第２照明機器、及び第１照明機器及び第２照明機器を制御する制御器を備えた照明制御システムであって、制御器は、第１照明機器を制御する第１制御信号、及び第２照明機器を制御する第２制御信号を生成する制御信号生成器、及び第１制御信号に基づいて第１照明機器の照射を制御し、第２制御信号に基づいて第２照明機器の照射を制御する駆動器を備え、第２領域の少なくとも一部が第１領域と重なり、第１領域は、第２領域よりも広く、第１照明機器の輝度又は刺激純度のステップ変化の時間幅は、第２照明機器の輝度又は刺激純度のステップ変化の時間幅よりも大きく、第１照明機器の輝度は、第２照明機器の輝度変化の１周期中の最大輝度よりも小さい。【選択図】図１Ａ