PROBLEM TO BE SOLVED: To provide a heat dissipation structure for an endoscope capable of efficiently dissipating heat generated at an imaging element while suppressing increase in a diameter of a tip part of an insertion part.SOLUTION: A heat dissipation structure for an endoscope comprises: an objective lens system 36 which is provided in a tip part 18 of an insertion part 12 extending forward from an operation part 11 and is exposed at a surface of the tip part an imaging element 23 which is provided in the tip part and comprises an imaging surface 24 for imaging an observation image passing through the objective lens on the front surface of the imaging element 23 a translucent cover member 25 which is provided in the tip part and covers the imaging surface while being separated backward from the objective lens and heat transfer means 30, 33 which are provided in the tip part, support the objective lens and are in contact with the front surface of the cover member at the back end of the heat transfer means, and are made from material having heat thermal conductivity higher than that of air.COPYRIGHT: (C)2015,JPO&INPIT【課題】挿入部の先端部が大径化し難く、かつ撮像素子で発生した熱を効率よく放熱することが可能な内視鏡の放熱構造を提供する。【解決手段】操作部11から前方に延びる挿入部12の先端部18内に設けた、上記先端部の表面において露出する対物レンズ系36と、先端部内に設けた、対物レンズを透過した観察像を撮像する撮像面24を前面に備える撮像素子23と、先端部内に設けた、撮像面を覆いかつ対物レンズから後方に離間する透光性のカバー部材25と、先端部内に設けた、対物レンズを支持しかつ後端がカバー部材の前面に接触する、空気より熱伝導率が高い材料からなる伝熱手段30、33と、を備える。【選択図】図2
