PROBLEM TO BE SOLVED: To provide a photoacoustic imaging device capable of suppressing a photoacoustic wave image from becoming unclear due to the noises which occur for a time period that a light source part produces a light.SOLUTION: A photoacoustic imaging device 100 comprises: a light emitting element 11 a detection part 2 including an ultrasonic vibrator 21 for vibrating in response to a drive signal and a control part 33 for performing a control to drive the ultrasonic vibrator 21 for a period containing at least a portion of the period that the light emitting element 11 emits a light, in response to a drive signal for suppressing the vibrations of the ultrasonic vibrator 21 due to noises.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】光源部が光を発生させる期間に生じるノイズに起因して光音響波画像が不鮮明になるのを抑制することが可能な光音響画像化装置を提供する。【解決手段】この光音響画像化装置100は、発光素子11と、駆動信号に応じて振動する超音波振動子21を含む検出部2と、発光素子11が光を発生させる期間のうちの少なくとも一部を含む期間に、ノイズに起因する超音波振動子21の振動を抑えるような駆動信号により、超音波振動子21を駆動させる制御を行うように構成されている制御部33とを備える。【選択図】図2