PROBLEM TO BE SOLVED: To make it possible to effectively radiate the heat generated from the imaging module arranged in the distal end part of an endoscope.SOLUTION: In the electronic endoscope having a space for arranging the imaging module including an imaging element in the distal end part of the endoscope inside of the same, the inside of the metal frame 26 including the imaging module is filled with an isotropic highly thermalconductive resin, the space around the metal frame is filled with anisotropic highly thermalconductive resin 42 having higher thermal conductivity in the endoscope outer peripheral direction than in the endoscope longitudinal direction, the heat generated from the imaging module is effectively conducted to the metallic cylindrical body 30 of the endoscope outer peripheral part and is radiated from the same.COPYRIGHT: (C)2012,JPO&INPIT【課題】内視鏡先端部に配設された撮像モジュールから発生した熱を効率よく放熱可能にする。【解決手段】内視鏡先端部に撮像素子を含む撮像モジュールを設置する空間を内部に持つ電子内視鏡において、前記撮像モジュールを含む金属枠26内に等方性高熱伝導樹脂40を充填し、その周囲空間に内視鏡長手方向よりも内視鏡外周部方向への熱伝導率の高い異方性高熱伝導樹脂42を充填し、撮像モジュールから発生した熱を効率よく内視鏡外周部の金属性筒状体30に伝熱し、ここで放熱させる。【選択図】図8
