PROBLEM TO BE SOLVED: To reduce a distortion of a subject in an endoscope including time division optical path switch means of enabling a switch of a plurality of optical paths in a time division.SOLUTION: An endoscope device comprises: a two-optical path formation optical system that forms a right optical path and a left optical path； one image formation optical system that image forms light passing through the right optical path and light passing through the left optical path on a common area； a light block unit that has a drive unit, and a light block member to be driven by the drive unit； and a control unit that controls the light block unit. The control unit is configured to control the drive unit to make the light block member block any of right incidence light to be incident upon the image formation optical system from the right optical path and left incidence light to be incident upon the image formation optical system from the left optical path, and the control unit is configured to control the drive unit to make the light block unit block both the right incidence light and the left incidence light.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】複数の光路を時分割で切り替え可能な時分割光路切り替え手段を備えた内視鏡において、被写体の歪みを低減する。【解決手段】内視鏡装置は、右光路および左光路を形成する２光路形成光学系と、前記右光路を通る光と前記左光路を通る光とを共通の領域に結像する１つの結像光学系と、駆動部と、前記駆動部に駆動される遮光部材と、を有する遮光部と、前記遮光部を制御する制御部と、を備え、前記制御部は、前記駆動部を制御して、前記遮光部材に、前記右光路から前記結像光学系に入射する右入射光と前記左光路から前記結像光学系に入射する左入射光のいずれか一方を遮断させ、前記制御部は、前記駆動部を制御して、前記遮光部材に、前記右入射光と前記左入射光の両方を遮断させる。【選択図】図２
