Patent ID: 9122016
Filing Date: 2015-09-01
Classification: A61B,G01N,G02B

Abstract:
1. An optical measurement apparatus that measures an optical property of a scattering medium, the optical measurement apparatus comprising: a light source configured to supply illumination light having at least one spectral component; an illumination fiber configured to guide the illumination light supplied by the light source and to emit the illumination light to the scattering medium; a detection fiber configured to receive returned light from the scattering medium at a tip of the detection fiber and to guide the returned light toward a base end of the detection fiber; a detecting unit configured to detect the returned light that is output from the base end of the detection fiber; a measuring unit configured to measure a property of the scattering medium based on a detection result obtained by the detecting unit; and a switching unit configured to change a spatial coherence length of the illumination light emitted from the scattering medium by switching a size of an emission area in which the illumination light is emitted at an end face of the illumination fiber.