PROBLEM TO BE SOLVED: To provide a photoacoustic endoscope capable of downsizing of a light source structure and simplifying a structure of light conducting pathway.SOLUTION: A photoacoustic endoscope 100 comprises a light source part 10a(10b) being arranged on an endoscope main body 1 capable of being inserted into an inner section of a sampling object and comprising an LED element 10c a detecting part 11 being arranged near the light source part 10a(10b) in the endoscope main body 1 and comprising a detecting surface 11b for detecting acoustic wave generated from a detection object in the sampling object having absorbed light from the light source part 10a(10b) and a reflection part 12 being arranged on the endoscope main body 1 and comprising a reflection surface 11b reflecting light generated by the LED element 10c of the endoscope main body 1 to a direction at a side of the detection object opposing to the detecting surface 11b.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2016,JPO&INPIT【課題】光源構造の小型化および光の伝達経路の構造の簡素化を図ることが可能な光音響内視鏡を提供する。【解決手段】この光音響内視鏡100は、被検体の内部に挿入可能な内視鏡本体1に設けられ、LED素子10cを含む光源部10a(10b)と、内視鏡本体1の光源部10a(10b)の近傍に設けられ、光源部10a(10b)から照射された光を吸収した被検体内の検出対象物から発生する音響波を検出するための検出面11bを含む検出部11と、内視鏡本体1に設けられ、内視鏡本体1のLED素子10cから発生された光を検出面11bに対向する検出対象物側の方向に反射する反射面11bを含む反射部12とを備える。【選択図】図5
