PROBLEM TO BE SOLVED: To provide an endoscope in which the diameter of an insertion part can be reduced.SOLUTION: An imaging device 20 of an endoscope 2 includes an imaging lens 21, a prism 23 on which an imaging light through the imaging lens 21 is incident, an image sensor 27 attached to an emission surface 23c of the prism 23, a circuit board 29 connected to the image sensor 27, and an electronic part 31 mounted on the circuit board 29. The electronic part 31 is mounted at a position closer to a base end side of the endoscope 2 than a reflection surface 23b of the prism 23 where it overlaps with a shadow of the prism 23 projected on a surface orthogonal to a longitudinal direction of an insertion part 6 of the endoscope 2.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】挿入部の細径化が可能な内視鏡を提供すること。【解決手段】内視鏡２の撮像装置２０は、撮影レンズ２１と、撮影レンズ２１を介した撮影光が入射するプリズム２３と、プリズム２３の出射面２３ｃに取り付けられたイメージセンサ２７と、イメージセンサ２７に接続された回路基板２９と、回路基板２９に実装された電子部品３１とを備える。電子部品３１は、プリズム２３の反射面２３ｂよりも内視鏡２の基端側で、内視鏡２の挿入部６の長手方向と直交する平面に投影したプリズム２３の影と重なる位置に、実装されている。【選択図】図３
