Patent ID: 9226662
Filing Date: 2016-01-05
CPC Classification: A61B,G01N

Claim Text:
1. A photoacoustic apparatus comprising: a light source which irradiates an inspection target with pulsed light; a detector having a plurality of transducer elements, each of which detects an acoustic wave generated due to irradiating the inspection target with the pulsed light and outputs a detection signal; a light-quantity measurement unit which measures a quantity of the pulsed light output from the light source; and a signal processor which obtains information on an inside of the inspection target by processing a plurality of detection signals output from the plurality of transducer elements, wherein the signal processor includes a signal correction unit which corrects the plurality of detection signals based on the quantity of the pulsed light measured by the light-quantity measurement unit so that variations in intensities of the plurality of detection signals, caused by a temporal change in the quantity of the pulsed light output from the light source, are suppressed.