PROBLEM TO BE SOLVED: To reduce influence of acoustic waves generated from a site of a subject not contacting with a plate when the subject is held by a plate-like member and acoustic measurement is performed.SOLUTION: A subject information acquiring device includes: an acoustic detection means for receiving acoustic waves propagated from a subject irradiated with light a signal processing means for generating characteristic information of the subject based on the acoustic waves a holding means for holding the subject and shape identification means that defines a contact portion contacting with a portion not contacting with the holding means out of the subject and defines the portion of the subject contacting with the contact portion as a predetermined shape.COPYRIGHT: (C)2013,JPO&INPIT【課題】プレート状の部材で被検体を挟持して光音響測定を行う際に、プレートに接触していない被検体の部位から発生する音響波の影響を低減する。【解決手段】光を照射された被検体から伝播する音響波を受信する音響検出手段と、音響波に基づいて被検体内の特性情報を生成する信号処理手段と、被検体を挟持する挟持手段と、被検体のうち挟持手段に接していない部分に接触する接触部分を備え、接触部分と接している被検体の部分を所定の形状に規定する形状規定手段を有する被検体情報取得装置を用いる。【選択図】図1
