PROBLEM TO BE SOLVED: To suppress the occurrence of stray light in a laser apparatus which drives a shutter to stabilize the laser beam.SOLUTION: Used is a subject information acquiring apparatus comprising: irradiation means for irradiating a subject with a laser beam restriction means for restricting the output of the laser beam from the irradiation means control means for controlling the irradiation of the laser beam and the driving of the restriction means a probe for receiving the acoustic waves which are generated by the subject irradiated with the laser beam and configuration means for creating characteristic information relating to the subject by using the acoustic waves, wherein the control means performs irradiation control which causes laser beam irradiation to be suppressed while the restriction means is being driven.COPYRIGHT: (C)2015,JPO&INPIT【課題】シャッタを駆動してレーザ光を安定させるレーザ装置において、迷光の発生を抑制する。【解決手段】被検体にレーザ光を照射する照射手段と、照射手段からのレーザ光の出力を制限する制限手段と、レーザ光の照射および制限手段の駆動を制御する制御手段と、レーザ光を照射された被検体から発生する音響波を受信する探触子と、音響波を用いて被検体の特性情報を生成する構成手段とを有し、制御手段は、制限手段が駆動中は前記レーザ光を照射しないものとする照射制御を行う被検体情報取得装置を用いる。【選択図】図1
