Patent ID: 6240309
Filing Date: 2001-05-29
Classification: A61B,G01N

Abstract:
An optical measurement instrument for a living body, comprising:light incident means for simultaneously applying lights of at least one wavelength in a visible-infrared region to a plurality of incident positions on the surface of a subject;light detection means for simultaneously detecting lights obtained by allowing said applied lights to pass through the subject at a plurality of detection positions on the surface of the subject; andimaging means for imaging information on the inside of the subject using detected signals outputted from said light detection means,said light incident means including light modulation means for intensity-modulating the applied lights with modulation frequencies which are different for each of said incident positions,said light detection means including selection and detection means for selecting and detecting transmitted light components corresponding to respective ones of said modulation frequencies at said respective detection positions from said applied lights relative to said plurality of detection positions.