PROBLEM TO BE SOLVED: To operate a resonant scanner favorably.SOLUTION: An imaging apparatus 1 includes a fundus imaging optical system 100 for projecting light from a light source 11 onto the fundus of a subject eye and receiving at a light receiving element 56 the fundus reflection light of the projected light, and generates a fundus image on the basis of a light-receiving signal from the light receiving element 56. The imaging apparatus 1 also includes: a drive circuit 25a a scan unit (resonant scanner) 25 for reciprocatingly scanning the fundus with the light from the light source 11 on the basis of a drive signal of an alternating current input to the drive circuit 25a and a feedback circuit 25c into which a sine wave signal according to the motion of the scan unit 25 is input, and which generates a drive signal in a sine wave by amplifying the input sine wave signal without distorting its waveform.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】レゾナントスキャナを良好に動作させること。【解決手段】撮影装置1は、光源11からの光を眼底に照射すると共に、照射された光の眼底反射光を受光素子56で受光する眼底撮影光学系100を有し、受光素子56からの受光信号に基づいて眼底画像を生成する。また、撮影装置1は、駆動回路25aを有し、光源11からの光を駆動回路25aへ入力される交流の駆動信号に基づいて被検眼の眼底上で往復走査させる走査部(レゾナントスキャナ)25と、走査部25の動きに応じた正弦波信号が入力され、入力される正弦波信号の振幅を波形を歪ませずに増幅することにより、駆動信号を正弦波で生成するフィードバック回路25cと、を有する。【選択図】 図3
