Patent ID: 8743362

Claim:
An optical measurement apparatus to which a base end portion of a measurement probe introduced into a subject is connected so that scattering light from the subject through the measurement probe can be measured, the optical measurement apparatus comprising: a calibration member serving as an irradiation target of illumination light when a calibration process is performed for the measurement probe using the illumination light from the measurement probe; an insertion portion where a leading end of the measurement probe can be inserted; a housing portion that communicates with the insertion portion and accommodates the calibration member movably inside the housing portion along a penetration direction of the insertion portion; a detection unit that detects a position of the calibration member inside the housing portion and detects insertion of the measurement probe when the detected position of the calibration member is a predetermined position in the housing portion; and a control unit that performs control for initiating the calibration process when the detection unit detects the insertion of the measurement probe.