US 2022/0065615 A1 · OPTICAL COHERENCE TOMOGRAPHY DEVICE

Abstract

An optical coherence tomography device is provided with a split beam generating means which splits a beam emitted from a single light source into at least four split beams and outputs these, a measurement beam irradiating means which irradiates measurement beams onto different positions of a measurement target through a mechanism that can change the position of said measurement beams on the measurement target, a reference beam irradiating means which irradiates at least two of the at least four split beams that are not the measurement beams onto a reference beam mirror as reference beams, and an optical spectrum data generating means which acquires depth-direction structural data about the measurement target from interference light obtained by causing one of the reference beams reflected by the reference beam mirror to interfere with each of the measurement beams reflected or scattered by the measurement target.

Claims13

Dependent claims

An optical coherence tomography device comprising:

a split beam generating unit that splits light emitted from a single light source into at least four split beams and outputting the split beams;
a measurement beam irradiating unit that irradiates different positions of a measurement target with measurement beams being at least two of the at least four split beams through a mechanism capable of changing a position of each of the measurement beams on the measurement target;
a reference beam irradiating unit that irradiates a reference beam mirror with at least two of the at least four split beams that are not the measurement beams, as reference beams;
and
an optical spectrum data generating unit that acquires depth-direction structural data about the measurement target from interference light to be acquired by causing one of the reference beams reflected by the reference beam mirror to interfere with each of the measurement beams reflected or scattered by the measurement target.

2 more elements

A method of generating an optical coherence tomographic image, comprising:

splitting light emitted from a single light source into at least four split beams and outputting the split beams;
irradiating different positions of a measurement target with measurement beams being at least two of the at least four split beams by adjusting a position of each of the measurement beams on the measurement target, and also irradiating a reference beam mirror with at least two of the at least four split beams that are not the measurement beams, as reference beams;
and
acquiring depth-direction structural data about the measurement target from interference light to be acquired by causing one of the reference beams reflected by the reference beam mirror to interfere with each of the measurement beams reflected or scattered by the measurement target.

1 more element

Dependencies are inferred from the claim text.

Optical coherence tomography device

Life of this patent

Optical coherence tomography device

Life of this patent

Abstract

Claims13