PROBLEM TO BE SOLVED: To provide a photoacoustic imaging device capable of suppressing an occurrence of a contact failure in a light source board and switching the light source boards easily in a configuration in which a light source part and a detection part are arranged close to each other.SOLUTION: A photoacoustic imaging device 100 includes a light source part 2 that includes light source boards 22 and 23, each having an LED element 24 for emitting light to a subject P, and is configured so as to rotate, a detection part 1 arranged close to the light source part 2, and a switching part (a pulley 26, a drive belt 27, a drive pulley 28, a guide groove 29, a protrusion 32g, and a switching dial 40) for switching the light source part 2 between a first position where the light of the LED element 24 of the light source board 22 can be emitted to the subject P and a second position where the light of the LED element 24 of the light source board 23 can be emitted to the subject P by causing the light source part 2 to rotate.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】光源部と検出部とを近接して配置する構成において、光源基板の接触不良が生じるのを抑制しつつ、光源基板を容易に切り替え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、被検体Pに光を照射するLED素子24をそれぞれ有する光源基板22および23を含み、回動可能に構成された光源部2と、光源部2に近接して配置された検出部1と、光源部2を回動させることによって、光源基板22のLED素子24の光を被検体Pに照射可能な第1の位置と、光源基板23のLED素子24の光を被検体Pに照射可能な第2の位置とに光源部2を切り替える切替部(プーリ26、駆動ベルト27、駆動プーリ28、ガイド溝29、突起部32gおよび切替ダイヤル40)と、を備える。【選択図】図4
