PROBLEM TO BE SOLVED: To provide an endoscope system by which a load on a patient can be reduced by continuing observation even when any one of multiple light sources is turned off due to a failure or the like.SOLUTION: The endoscope system includes a control means 31 for substituting the illumination light of the normal light source among the light sources for the light source with a failure when any one of the multiple light sources 33a, 33b, 35a, 35b is turned off due to a failure, and also for changing over the image processing 37 of a picked up image signal output from a solid state imaging element incorporated in the distal end part of an electronic endoscope, when the illumination light of the light source with a failure in a normal case is different from the illumination light of the light source for the substitution, thereby to restrict the change of a shade in a picked up image after the image processing between the shades before and after the substitution.COPYRIGHT: (C)2013,JPO&INPIT【課題】複数の光源の内いずれかが故障等で消灯しても、観察を継続して患者への負担軽減を図ることが可能な内視鏡システムを提供する。【解決手段】複数個の光源33a,33b,35a,35bの内いずれかの光源が故障により消灯した場合、該故障にかかる光源の代わりに前記光源のうち正常な光源の照明光で代替させると共に、前記故障にかかる光源の正常時における照明光と前記代替させた光源の照明光とが異なるときには電子内視鏡先端部に内蔵させた固体撮像素子から出力される撮像画像信号の画像処理37を切り替えて前記代替前後での前記画像処理の後の撮像画像の色味変化を抑制する制御手段31を設ける。【選択図】図2
