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1. (WO2017038906) PHOTOACOUSTIC IMAGING DEVICE

Pub. No.:    WO/2017/038906    International Application No.:    PCT/JP2016/075582
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Sep 01 01:59:59 CEST 2016
IPC: A61B 8/13
Applicants: PREXION CORPORATION
プレキシオン株式会社
Inventors: NAKATSUKA, Hitoshi
中塚 均
Title: PHOTOACOUSTIC IMAGING DEVICE
Abstract:
The present invention includes: a light source unit (11); a detection unit (12) that detects acoustic waves A generated from inside a subject P due to the subject P being irradiated with light from the light source unit (11); and a light source drive unit (21) that supplies power to the light source unit (11) and drives the light source unit (11). The light source drive unit (21) is configured to set a ratio between a rising slope and a falling slope of a pulse waveform of the light emitted from the light source unit (11) on the basis of detected frequency (frequency bandwidth) by the detection unit (12), and is configured so that the wider the range of the detected frequency by the detection unit (12), the higher the absolute value of the ratio of the slopes.