Optical coherence tomography apparatus and optical coherence tomography method
AssigneeCanon Kabushiki Kaisha
InventorTomohiro Yamada
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Abstract
In an OCT apparatus of the related art, since a k-trigger generating unit and a measuring system for obtaining interference light including information about an object are separately provided, the k-trigger generating unit needs to send trigger signals for sampling to the measuring system. Thus, timing errors due to multiple electric devices are likely to accumulate, and this makes high-accuracy synchronization difficult. An OCT apparatus includes a wavelength selector provided on an optical path between a light source unit and an optical detection unit and having a wavelength selectivity with equal wavenumber intervals.
Claims11
An optical coherence tomography apparatus comprising:
- a light source unit configured to change a wavelength of light;
- an interference optical system configured to split the light from the light source unit into irradiation light to be applied to an object and reference light and to generate interference light between reflected light of the light applied to the object and the reference light;
- an optical detection unit configured to receive the interference light;
- and
- an information acquisition unit configured to acquire information about the object on the basis of a temporal waveform of an intensity of the interference light,
- wherein the optical coherence tomography apparatus further includes a wavelength selector provided on an optical path between the light source unit and the optical detection unit and having a wavelength selectivity with equal wavenumber intervals, and
- wherein the information acquisition unit obtains peak values in the temporal waveform of the intensity of the interference light and acquires the information about the object on the basis of the obtained peak values.
Dependencies are inferred from the claim text.