Patent ID: 8970848
Filing Date: 2015-03-03
Classification: A61B,G01N

Abstract:
1. An optical image measurement apparatus according comprising: an optical system that divides light output from a light source into a signal light and a reference light, irradiates a measured object with said signal light, generates interference light by superimposing said signal light passing through said measured object and said reference light passing through a reference light path, and includes a detecting section that detects the interference light; a change section that changes the frequency of light passing through said reference light path; a controller that causes said change section to change the frequency based on the movement velocity of said measured object in the irradiation direction of said signal light with respect to said measured object; and a forming section that forms an image of said measured object based on the detection results of said interference light generated by said optical system, based on said signal light passing through said measured object and the reference light in which the frequency is changed by said controller, wherein a sum of said frequency and a frequency shift amount of said signal light caused by movement of said measured object is higher than a response frequency of said detecting section, and wherein said controller includes a measurement section that measures the state of motion of said measured object in said irradiation direction, and causes said change section to change the frequency based on the measurement result.