The imaging system includes a light amount detector for detecting a plurality of semiconductor light emitting elements that emit a plurality of colors of light containing a predetermined color of light for illuminating the subject, the amount of light emitted from the plurality of semiconductor light emitting elements, respectively sets an imaging element for imaging an optical image of an object, the light quantity control pattern corresponding to the image pickup operation of the image sensor, based on the light quantity control pattern set, to drive the reference semiconductor light emitting element emitting light of a predetermined color control parts and, based on the exposure period setting unit for setting an exposure period of the light amount detection unit based on the light quantity control pattern, a plurality of colors of light quantity and the light quantity control pattern is detected in the exposure period of the light amount detection unit, the reference by driving the respective semiconductor light emitting devices other than the semiconductor light emitting device has a color balance adjustment section for adjusting a color balance of a plurality of colors of light撮像システムは、被写体を照明するための所定の色の光を含む複数の色の光を発する複数の半導体発光素子と、複数の半導体発光素子から発せられる光の光量をそれぞれ検知する光量検知部と、被写体の光学像を撮像する撮像素子と、撮像素子の撮像動作に応じた光量制御パターンを設定し、設定した光量制御パターンに基づき、所定の色の光を発する基準半導体発光素子を駆動させる制御部と、光量制御パターンに基づいて光量検知部の露光期間を設定する露光期間設定部と、光量検知部の露光期間に検知された複数の色の光の光量と光量制御パターンとに基づき、基準半導体発光素子以外の各半導体発光素子を駆動させることにより、複数の色の光の色バランスを調整する色バランス調整部と、を有する。
