DUAL BEAM OPTICAL COHERENCE TOMOGRAPHY WITH SIMULTANEOUS ORTHOGONAL SCANNING
First Claim
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1. A simultaneous orthogonal scanning dual beam optical coherence tomography (OCT) system, comprising:
- a light source generating broadband light;
a light distribution unit distributing the light from the light source;
a sample arm splitting a fraction of the light from the light distribution unit into a horizontally polarized beam and a vertically polarized beam traveling along different optical paths, simultaneously emitting the horizontally polarized beam and the vertically polarized beam to a subject after converting the horizontally polarized beam and the vertically polarized beam such that scanning directions thereof are perpendicular to one another, and receiving a reflected horizontally polarized beam and a reflected vertically polarized beam from the subject;
a reference arm splitting the other fraction of the light from the light distribution unit and generating a reference beam containing a horizontal polarization component and a vertical polarization component;
an interference unit receiving the reflected horizontally polarized beam, the reflected vertically polarized beam, and the reference beam and generating an interference signal of horizontal polarization components and an interference signal of vertical polarization components allowing simultaneous acquisition of an XZ plane image and a YZ plane image perpendicular to one another; and
a detection unit converting the interference signals into electrical signals.
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Abstract
Disclosed herein is a simultaneous orthogonal scanning dual beam OCT system. The simultaneous orthogonal scanning dual beam OCT system includes: a light source 10; a light distribution unit 20; a sample arm 40; a reference arm 50; a interference unit 60; and a detection unit 70.
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Citations
15 Claims
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1. A simultaneous orthogonal scanning dual beam optical coherence tomography (OCT) system, comprising:
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a light source generating broadband light; a light distribution unit distributing the light from the light source; a sample arm splitting a fraction of the light from the light distribution unit into a horizontally polarized beam and a vertically polarized beam traveling along different optical paths, simultaneously emitting the horizontally polarized beam and the vertically polarized beam to a subject after converting the horizontally polarized beam and the vertically polarized beam such that scanning directions thereof are perpendicular to one another, and receiving a reflected horizontally polarized beam and a reflected vertically polarized beam from the subject; a reference arm splitting the other fraction of the light from the light distribution unit and generating a reference beam containing a horizontal polarization component and a vertical polarization component; an interference unit receiving the reflected horizontally polarized beam, the reflected vertically polarized beam, and the reference beam and generating an interference signal of horizontal polarization components and an interference signal of vertical polarization components allowing simultaneous acquisition of an XZ plane image and a YZ plane image perpendicular to one another; and a detection unit converting the interference signals into electrical signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification