Problem to be solved: to provide an illumination apparatus and an illumination control method capable of realizing more effective respiration rhythm.First light source emits first light andA plurality of light sources including a second light source for emitting a second light having a different degree of chromaticity than the first lightA control unit which changes the output of at least one of the first light source and the second light source with time, andEquipped withControl sectionThe chromaticity of the combined light by which the light emitted by the first light source and the second light source is combinedFirst chromaticityIt is continuously repeated between the second chromaticity with a lower degree of stimulation purity than the first chromaticity.AndThe longer the cycle of iterationThe first pure stimulus purity andThe difference from the purity of the second light is increased.Diagram【課題】より効果的な呼吸リズムの補助を実現できる照明装置及び照明制御方法を提供する。【解決手段】第１光を発する第１光源と、第１光と異なる色度を有する第２光を発する第２光源とを含む複数の光源と、第１光源及び第２光源のうちの少なくとも１つの出力を時間的に変化させる制御部と、を備え、制御部は、第１光源及び第２光源が発する光を合算した合算光の色度を、第１色度と、第１色度よりも刺激純度の低い第２色度との間で連続的に反復して変化させ、かつ、反復変化の周期が長いほど、第１光の刺激純度と、第２光の刺激純度との差を大きくする。【選択図】図１
