The endoscope apparatus 1 includes a laser light source 31, an optical fiber 14 that guides illumination light from the laser light source 31 to an object, a conductor 18 that is in close contact with the optical fiber 14, and a conductor 18 that conducts a drive signal. An actuator 15 that is provided at the tip and swings the tip of the optical fiber 14 based on the drive signal, a detection circuit 27 that detects that the conducting wire 18 has been cut and outputs the detection signal, and a detection signal based on the detection signal And a controller 23 for controlling the amount of illumination light.内視鏡装置１は、レーザ光源３１と、レーザ光源３１からの照明光を対象物に導く光ファイバ１４と、光ファイバ１４に密着された導線１８と、駆動信号を電通するために導線１８の先端に設けられ、駆動信号に基づいて光ファイバ１４の先端部を揺動させるアクチュエータ１５と、導線１８が切断されたことを検知し、検知信号を出力する検知回路２７と、検知信号に基づいて照明光の光量を制御するコントローラ２３とを有する。
