Optical tomographic imaging apparatus and method for controlling the same
AssigneeCanon Kabushiki Kaisha
InventorsIsao Komine, Hiroshi Aoki, Hirofumi Yoshida, Yukio Sakagawa, Hiroyuki Inoue
Life of this patent
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Abstract
An optical tomographic imaging apparatus includes a control unit configured to, in a case where an instruction to narrow an imaging range of a tomographic image is issued, control a measurement light optical path length changing unit to reduce an optical path length of measurement light and make a changing speed of the optical path length of the measurement light lower than in a case where an instruction to widen the imaging range is issued.
Claims20
An optical tomographic imaging apparatus configured to obtain a tomographic image of an object based on light into which return light from the object irradiated with measurement light and reference light corresponding to the measurement light are combined, the optical tomographic imaging apparatus comprising:
- a measurement light optical path length changing unit configured to change an optical path length of the measurement light;
- an instruction unit configured to issue an instruction on a size of an imaging range of the tomographic image;
- and
- a control unit configured to, in a case where an instruction to narrow the imaging range is issued, control the measurement light optical path length changing unit to reduce the optical path length of the measurement light and make a changing speed of the optical path length of the measurement light lower than in a case where an instruction to widen the imaging range is issued.
A method for controlling an optical tomographic imaging apparatus configured to obtain a tomographic image of an object based on light into which return light from the object irradiated with measurement light and reference light corresponding to the measurement light are combined, the method comprising:
- issuing an instruction on a size of an imaging range of the tomographic image;
- and
- controlling, in a case where an instruction to narrow the imaging range is issued, a measurement light optical path length changing unit to reduce an optical path length of the measurement light and make a changing speed of the optical path length of the measurement light lower than in a case where an instruction to widen the imaging range is issued, the measurement light optical path length changing unit being configured to change the optical path length of the measurement light.
Dependencies are inferred from the claim text.