PROBLEM TO BE SOLVED: To provide a subject information acquisition device capable of suppressing the irradiation of a laser beam onto an area other than a subject.SOLUTION: A subject information acquisition device includes light irradiation means for irradiating a light onto a subject, an acoustic wave probe for receiving an acoustic wave generated in the subject due to the light, and converting it to an electric signal, characteristic information acquisition means for acquiring characteristic information in the subject based on the electric signal, area information acquisition means for acquiring information on an area where the light irradiated from the light irradiation means arrives, position detection means for acquiring an operators position, which is the position of an operator, and determination means for determining whether the operators position is in a first state that it overlaps with the light arrival area, or in a second state that it does not overlap with the light arrival area.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】被検体以外に対するレーザ光の照射を抑制できる被検体情報取得装置を提供する。【解決手段】被検体に光を照射する光照射手段と、光に起因して被検体内で発生した音響波を受信し、電気信号に変換する音響波探触子と、電気信号に基づいて、被検体内の特性情報を取得する特性情報取得手段と、光照射手段から照射される光の到達エリアに関する情報を取得するエリア情報取得手段と、操作者の位置である操作者位置を取得する位置検出手段と、操作者位置が、光の到達エリアと重なっている第一の状態にあるか、光の到達エリアと重なっていない第二の状態にあるかを判定する判定手段と、を有する。【選択図】図1
