PROBLEM TO BE SOLVED: To provide a photoacoustic device that can acquire information on a subject accurately even when a transmission efficiency of a transmission part varies for each light irradiated position in the subject.SOLUTION: An information acquisition device scans an irradiation position for light 3 irradiated from an irradiation part 6 to the subject 8. The transmission efficiency of the transmission part 4 varies depending on each irradiation position. An acquisition part 14 acquires information on the subject 8 using information relating to the transmission efficiency of the transmission part 4.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】伝送部の伝送効率が、被検体への光の照射位置ごとにばらついても、被検体の情報を精度よく取得できる光音響装置を提供する。【解決手段】照射部6から被検体8に照射される光3の照射位置は走査され、伝送部4の伝送効率は照射位置ごとで異なり、取得部14は、伝送部4の伝送効率に関する情報を用いて、被検体8の情報を取得する。【選択図】図1
