PROBLEM TO BE SOLVED: To provide a scanning endoscope capable of realizing excellent insertability with respect to the duct line, etc., by making the diameter of the tip area of the distal section further smaller.SOLUTION: The scanning endoscope is configured as follows. A detection fiber bundle 16 for guiding incident light is arranged along an illumination tube 43 of a light source unit 40 and a light-receiving surface 16a installed on a tip surface of the detection fiber bundle 16 is arranged at proximal side than the tip of the illumination tube 43. A region including the light-receiving surface 16a of the detection fiber bundle 16 from the outer periphery of the illumination tube 43 is covered with a transparent outer coat 50 which can change the traveling direction of the incident light, to thereby guide the incident light entering the transparent outer coat 50 to the light-receiving surface 16a of the detection fiber bundle 16.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】先端部の先端領域の更なる細径化により、管路等に対する良好な挿入性を実現することができる走査型内視鏡を提供する。【解決手段】入射された光を導光する検出ファイババンドル16を光源ユニット40の照明管43に沿って配設するとともに、検出ファイババンドル16の先端面に設定した受光面16aを照明管43の先端よりも基端側に配設し、照明管43の先端外周から検出ファイババンドル16の受光面16aを含む領域を、入射された光の進行方向変化させることが可能な透明外皮50によって被覆し、透明外皮50に入射された光を検出ファイババンドル16の受光面16aに導く構成とする。【選択図】図2
