PROBLEM TO BE SOLVED: To provide an image-capturing device in which, even when the exit pupil position of an objective optical system is off the central axis of an image-capturing element, the unevenness in brightness that occurs in the image obtained by the image-capturing element is suppressed.SOLUTION: The image-capturing device has a first optical path forming optical system OP1 and a second optical path forming optical system OP2, and an image-capturing element 21 disposed at the image formation position of the first optical path forming optical system OP1 and second optical path forming optical system OP2, the exit pupil positions EPP of the first optical path forming optical system OP1 and second optical path forming optical system OP2 being set to positions that are mutually eccentric to the central axis C of the image-capturing element 21. The distance from a light-receiving plane 21a in the direction of the central axis C to the exit pupil position EPP of the first optical path forming optical system OP1 and the distance from the light-receiving plane 21a in the direction of the central axis C to the exit pupil position EPP of the second optical path forming optical system OP2 are equal or substantially equal to the distance from the light-receiving plane 21a in the direction of the central axis C to the incident pupil position ISP of the image-capturing element 21.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】対物光学系の射出瞳位置が撮像素子の中心軸からずれていても、撮像素子で得られる画像において生じる明るさのムラを抑制した撮像装置を提供する。【解決手段】撮像装置は、第1光路形成光学系OP1と第2光路形成光学系OP2と、第1光路形成光学系OP1及び第2光路形成光学系OP2の結像位置に配置された撮像素子21と、を有し、第1光路形成光学系OP1と第2光路形成光学系OP2の射出瞳位置EPPは、互いに撮像素子21の中心軸Cに対して偏芯した位置に設定される。中心軸C方向における受光面21aから第1光路形成光学系OP1の射出瞳位置EPPまでの距離と、中心軸C方向における受光面21aから第2光路形成光学系OP2の射出瞳位置EPPまでの距離は、中心軸C方向における受光面21aから撮像素子21の入射瞳位置ISPまでの距離と等しいあるいは略等しい。【選択図】図3
