Optical coherence tomography apparatus and method
AssigneeCanon Kabushiki Kaisha
InventorRyoji Kurosaka
Life of this patent
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Abstract
Measuring light with a wide wavelength band is used to provide a tomographic image excellent in vertical resolution. An optical coherence tomography apparatus acquiring a tomographic image of an object to be inspected based on an interference light obtained by causing a return light from a measuring light emitted onto the object to be inspected to interfere with a reference light corresponding to the measuring light, includes: a first dispersion compensation unit having a first dispersion compensation characteristic in a wavelength band of the measuring light; a second dispersion compensation unit provided onto the first dispersion compensation unit and having a second dispersion compensation characteristic in the wavelength band of the measuring light.
Claims9
An optical coherence tomography apparatus acquiring a tomographic image of an object to be inspected based on an interference light obtained by causing a return light from a measuring light emitted onto the object to be inspected to interfere with a reference light corresponding to the measuring light, said apparatus comprising:
- a first dispersion compensation unit having a first dispersion compensation characteristic in a wavelength band of the measuring light;
- a second dispersion compensation unit provided onto the first dispersion compensation unit and having a second dispersion compensation characteristic in the wavelength band of the measuring light.
Dependencies are inferred from the claim text.