Imaging device and imaging method
AssigneeCanon Kabushiki Kaisha
InventorTakashi Yuasa
Life of this patent
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Abstract
The present invention relates to an imaging device including a reducing section configured to reduce superimposition of first and second combined lights upon each other. The first and second combined lights are based on first and second measuring lights that illuminate an examination object. The imaging device according to the present invention also includes an obtaining section configured to obtain an optical coherence tomographic image of the examination object based on the first and second combined lights whose superimposition has been reduced at the reducing section. A sensor having a minimum number of pixels is provided by restricting crosstalk between interference lights at the sensor.
Claims12
An imaging device comprising:
- an illuminating section configured to illuminate an examination object with first and second measuring lights;
- a detecting section configured to detect a first combined light based on the first measuring light and a second combined light based on the second measuring light;
- a reducing section configured to reduce superimposition of the first and second combined lights upon each other at the detecting section;
- and
- an obtaining section configured to obtain an optical coherence tomographic image of the examination object based on the first and second combined lights whose superimposition has been reduced at the reducing section.
An imaging method comprising the steps of:
- illuminating different positions of an examination object with measuring lights formed of a plurality of lights;
- combining returning lights and reference lights formed of a plurality of lights, the returning lights corresponding to the measuring lights, formed of the plurality of lights, that are reflected or scattered by the examination object;
- detecting interference lights, formed by the combining of the returning lights and the reference lights, with a sensor;
- reducing a light quantity of a portion where a first interference light and a second interference light adjacent to the first interference light are superimposed upon each other at the sensor that receives the interference lights;
- and
- obtaining an optical coherence tomographic image of the examination object.
Dependencies are inferred from the claim text.