Patent ID: 8599386

Claim:
An optical tomographic imaging apparatus comprising: a light source unit configured to emit a plurality of luminous fluxes respectively having predetermined wavelength bands different from each other by sweeping wavelength in each of the predetermined wavelength bands; a light dividing device configured to divide, into a measuring light beam and a reference light beam, each of the plurality of luminous fluxes emitted from the light source unit; a plurality of interference light detecting devices, when a plurality of measuring light beams divided by the light dividing device are irradiated onto a measuring object, each of the plurality of interference light detecting devices detecting, for each of the luminous fluxes, an interference light signal between a reflected light beam from the measuring object and the reference light beam; a composite interference signal generating device configured to generate a composite interference signal formed by combining a plurality of interference light signals detected by the interference light detecting devices; an interference information calculating device configured to calculate phase information of the plurality of interference signals detected by the interference light detecting devices based on the composite interference signal, the interference information calculating device configured to calculate signal intensity information of the interference light signal based on the composite interference signal; an interference information correcting device configured to use, as a reference, a phase of the interference light signal obtained from a luminous flux of a first wavelength band, and to generate a corrected interference light signal by correcting, based on the phase used as the reference, a phase of the interference light signal obtained from a luminous flux of a wavelength band different from the first wavelength band; a corrected composite signal generating device configured to generate a corrected composite signal formed by combining the interference light signal of the first wavelength band and the corrected interference light signal; and an intensity correcting device configured to correct an envelope of a signal intensity of the corrected composite signal to a Gaussian shape based on the signal intensity information of the interference light signal, the signal intensity information being calculated by the interference information calculating device.