PROBLEM TO BE SOLVED: To provide an endoscope system that is provided with a configuration enabling detection of at least a type of an adapter to be mounted to a tip part of an insertion part, without enlarging a diameter of the tip part and reduction in performance of an endoscope.SOLUTION: The endoscope system comprises: an operation part 15 a light source 52 a light guide 30 an illumination optical system 2 a coloring member 5 that is provided within each adapter 1, and is different in a color for each of a plurality of adapters 1 optical fibers 31 and 32 a detection member 53 a storage 54 that has a table 54t and a control part 51 that detects the color of the coloring member 5 from return light detected by the detection member 53, and detects at least the type of the adapter 1 by collating the detected color with the table 54t.COPYRIGHT: (C)2015,JPO&INPIT【課題】先端部を大径化することがないとともに内視鏡の性能を低下させることなく、挿入部の先端部に装着されるアダプタの少なくとも種類を検出できる構成を具備する内視鏡システムを提供する。【解決手段】操作部15と、光源52と、ライトガイド30と、照明光学系2と、各アダプタ1内に設けられた、複数のアダプタ1毎に色が異なる着色部材5と、光ファイバ31、32と、検出部材53と、テーブル54tを有する記憶部54と、検出部材54によって検出された戻り光から着色部材5の色を検出し、テーブル54tに照合して少なくともアダプタ1の種類を検出する制御部51と、を具備している。【選択図】図6
