Patent ID: 7965392

Claim:
An optical coherence tomography device, comprising: a light source; a light splitting section that splits light source light emitted from the light source into reference light with which a reference mirror is irradiated and measuring light with which a sample to be measured is irradiated; an interfering section that allows the measuring light reflected from the sample to interfere with the reference light reflected from the reference mirror to generate interference light; a photo detecting section that measures the interference light; a measuring head that is movable by an external operation, and changes at least an irradiating position and/or an irradiating direction of the measuring light relative to the sample, by a motion of the measuring head; a mechanical quantity sensor that measures the motion of the measuring head in at least one direction; and an operating section that obtains information on a reflectance distribution in a depth direction inside the sample, obtained from the interference light measured by the photodetecting section, and information indicating a position of the reflectance distribution, obtained from the motion of the measuring head measured by the mechanical quantity sensor, in synchronization with the information on the reflectance distribution, and the operating section constructs an image inside the sample based on the information on the reflectance distribution and the information indicating the position of the reflectance distribution.