A novel and improved technique capable of adjusting the light temperature of a plurality of light sources based on the correlation between the luminance acquired from the light receiving unit and the light amount of the emitted light, respectively, and accurately adjusting the color temperature in the light receiving unit. A lighting device, a lighting device control method, and an image acquisition system are proposed. An illumination apparatus includes a white light source that emits white light, an RGB light source that can independently adjust the amount of each emitted light, and the white light and the emitted light that are combined to form illumination light. A multiplexing unit, and a control unit that controls the amount of each emitted light. [Selection] Figure 1【課題】受光部から取得した輝度と前記出射光の光量との相関関係に基づき複数の光源の光量をそれぞれ調整して、受光部における色温度を精度よく調節することが可能な、新規かつ改良された照明装置及び照明装置の制御方法並びに画像取得システムを提案する。【解決手段】照明装置は、白色光を出射する白色光源と、それぞれの出射光の光量を独立して調整可能なＲＧＢ光源と、前記白色光及び前記出射光を合波して照明光とする合波部と、それぞれの前記出射光の光量を制御する制御部と、を備える。【選択図】図１
