PROBLEM TO BE SOLVED: To solve the problem that shading appearances become different so as to sometimes cause difficulty in fusing images because illumination directions are subtly different in the images of an imaging system for left and right eyes in a three-dimensional endoscope apparatus.SOLUTION: An endoscope system has a three-dimensional endoscope including a light source of illumination light for irradiating the inside of a subject, an illumination outgoing port for irradiating the illumination light, and two or more imaging systems for imaging the inside of the subject irradiated with the illumination light. The endoscope system further includes illuminance distribution change means for changing an illuminance distribution of the illumination light so as to reduce a difference in brightness distribution imaged respectively by the imaging systems.COPYRIGHT: (C)2014,JPO&INPIT【課題】立体内視鏡装置において、左右目用の撮像系での画像において、微妙に照明方向が異なるため、陰影の出方が異なってしまい、融像が困難になる場合があった。【解決手段】被検体の内部を照射する照明光の光源と、該照明光を照射する照明出射口と、該照明光で照射された被検体の内部を撮像する2以上の撮像系とを備える立体内視鏡を有する内視鏡システムにおいて、該撮像系のそれぞれにより撮像された像の輝度分布の差を減少させるように、該照明光の照度分布を変更する照度分布変更手段をさらに備える、内視鏡システム。【選択図】図1
