Patent ID: 9737216
Date: 2017-08-22
CPC Classifications: A61B,G01N

Claim:
1. An apparatus comprising: a light irradiation unit configured to irradiate an object that comprises biological tissue with first pulsed light and second pulsed light; an acoustic wave probe configured to convert an acoustic wave generated in the object due to the first pulsed light into an acoustic wave signal; a photo-detection unit configured to convert the second pulsed light which has propagated through the object into a first optical signal having a temporal waveform; a frequency analysis unit configured to a light intensity acquiring unit configured to calculate, using the optical coefficient data of the object, a light intensity distribution of the first pulsed light in the object; and an information acquiring unit configured to acquire object information, using the acoustic wave signal and the light intensity distribution, wherein the object information is a distribution of the absorption coefficient in the object, a distribution of concentrations of substances in the object, or a distribution of oxygen saturation in the object.