PROBLEM TO BE SOLVED: To provide a photoacoustic probe capable of reducing power consumption, improving operability by reducing an outer shape, and creating an accurate photoacoustic image by detecting an accurate photoacoustic wave even when an acoustic wave detection part is tilted.SOLUTION: A photoacoustic probe 10 has a light source part 13, and an acoustic wave detection part 14 for detecting an acoustic wave inside an analyte. The light source part 13 has: a housing 16 a light source body having a long shape formed by arraying light-emitting devices therein, and arranged inside the housing 16 and a mechanism 17 for tilting an optical axis of the light-emitting device synchronously with tilting of the acoustic wave detection part 14.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】消費電力を低減し、外形を小さくすることで操作性を向上するとともに、音響波検出部を傾斜させても正確な光音響波を検出することで正確な光音響画像を作成できる光音響探触子を提供する。【解決手段】光源部13と、被検体内部の音響波を検出する音響波検出部14とを有し、光源部13が、筐体16と、筐体16の内部に配置され、発光素子を配列した長尺形状の光源体とを有しており、音響波検出部14の傾斜と同期して、発光素子の光軸を傾斜させる機構17を備えている光音響探触子10。【選択図】図4
