PROBLEM TO BE SOLVED: To provide a photoacoustic imaging device capable of correctly imaging a difference in tissues of a subject based on an image generated for each wavelength even when the intensity of at least one of a light of a first wavelength and a light of a second wavelength deteriorates.SOLUTION: A photoacoustic imaging device includes a first light source part 1 for irradiating light of a first wavelength to a subject P, and a second light source part 2 for irradiating light of a second wavelength different from the first wavelength to the subject P. When there is a difference between the intensity of the light of the first light source part 1 and the intensity of the light of the second light source part 2, at least one of the intensity of the light from at least one of the first light source part 1 and the second light source part 2, and detection signals is controlled so as to reduce the difference in the intensity of the detection signals based on the difference between the intensity of the light of the first light source part 1 and the intensity of the light of the second light source part 2.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】第1の波長の光または第2の波長の光のうちの少なくとも一方の強度が低下した場合でも、波長ごとに生成された画像に基づいて、被検体の組織の違いを正しく画像化することが可能な光音響画像化装置を提供する。【解決手段】被検体Pに第1の波長の光を照射する第1光源部1と、被検体Pに第1の波長とは異なる第2の波長の光を照射する第2光源部2とを備え、第1光源部1の光の強度と第2光源部2の光の強度とに差がある場合には、第1光源部1の光の強度と第2光源部2の光の強度との差に基づく検出信号の強度の差を小さくするように、第1光源部1または第2光源部2のうちの少なくとも一方からの光の強度または検出信号のうちの少なくとも一方を制御するように構成されている。【選択図】図3
