Patent ID: 9351646
Filing Date: 2016-05-31
CPC Classification: A61B

Claim Text:
1. A photoacoustic measurement apparatus, comprising: a diffuser plate which diffuses measuring light inputted from the upstream side of an optical system; a lens system which focuses the measuring light diffused by the diffuser plate and is disposed such that the measuring light diffused by the diffuser is inputted from the upstream side of the lens system; an optical fiber cable which includes an optical fiber having a core and cladding structure and is disposed such that the measuring light focused by the lens system is inputted from one end; a light projection unit which projects the measuring light guided by the optical fiber cable into a subject; an electroacoustic transducer unit which detects a photoacoustic wave generated in the subject by the projection of the measuring light and converts the photoacoustic wave into an electrical signal; and a signal measurement unit which performs a signal measurement based on the electrical signal.