It includes probe that main information, which obtains equipment, including receiver, it receives sound wave and is converted into electric signal and surface and pulsed light on the region of the first and second irradiation units irradiations different each other, one control unit, control illumination position to avoid Continuous irradiation pulsed light object and pulsed light from the first and second irradiation units, signal processing unit executes this average or integrated electric signal from pulsed light irradiation and the first and second irradiation units, and it obtains feature distribution and obtains electric signal from pulsed light irradiation and the first and second irradiation units to being combined or be distributed by average or integrated signal, and combination distribution is obtained as characteristic distribution object.
