PROBLEM TO BE SOLVED: To provide an endoscope, capable of effectively removing dirt on the surface of an objective lens with washing water injected from a water supply nozzle without narrowing the field angle of the objective lens.SOLUTION: An endoscope includes: water supply ducts 22, 24, the front ends of which are opened to the front end face of an insertion part 12 an objective lens 19 provided on the front end face at a position different from those of the front end openings of the water supply dusts and a water supply nozzle 26 projected forward from the front end face to inject the water discharged from the front end openings toward the objected lens. The front end face is provided with linear water supply guide grooves 29, 30 with end ends thereof located between the objective lens and the water supply nozzle and with the other ends thereof extended in the direction of separating from the water supply nozzle along the side of the objective lens away from the objective lens.COPYRIGHT: (C)2014,JPO&INPIT【課題】対物レンズの画角を狭めることなく、送水ノズルから噴射した洗浄水によって対物レンズの表面の汚れを効果的に除去可能な内視鏡を提供する。【解決手段】前端が挿入部12の前端面において開口する送水管路22、24と、送水管路の前端開口とは位置を異ならせて上記前端面に設けた対物レンズ19と、送水管路の前端開口に設けた、該前端開口から排出された水を対物レンズ側に向けて噴射する、上記前端面より前方に突出する送水ノズル26と、を備え、上記前端面に、一端が対物レンズと送水ノズルの間に位置し、かつ、他端が対物レンズを避けながら該対物レンズの側方を通って送水ノズルから離れる方向に延びる線状の送水案内溝29、30を凹設する。【選択図】図4
