PROBLEM TO BE SOLVED: To provide a light source unit of a portable endoscope, suitable for using a water battery as a power source.SOLUTION: The light source unit of a portable endoscope includes: a light source a light source drive circuit for controlling light emission of the light source a battery housing case body in which a housing port is formed a housing port sealing part having a sealing structure for sealing the housing port a conductive part, provided passing through a wall part of the battery housing case body and for electrically connecting the light source drive circuit and a battery inside the battery housing case body and a first sealing part, for filling a gap between the conductive part and the wall part and sealing the inside of the battery housing case body.COPYRIGHT: (C)2012,JPO&INPIT【課題】電源として水電池を使用するのに好適な携帯型内視鏡の光源ユニットを提供すること。【解決手段】携帯型内視鏡の光源ユニットを、光源と、光源を発光制御する光源駆動回路と、収容口が形成された電池収容ケース本体と、収容口を封止する封止構造を持つ収容口封止部と、電池収容ケース本体の壁部を貫通して設けられた光源駆動回路と該電池収容ケース本体内の電池とを電気的に接続する導電部と、導電部と壁部との間隙を埋めて電池収容ケース本体内を封止する第一の封止部と、から構成する。【選択図】図2
