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Full-eyeball optical coherent tomography adaptive system and full-eyeball optical coherent tomography adaptive method

A technology of coherent tomography and imaging systems, applied in the fields of application, medical science, and eye testing equipment, etc., which can solve problems such as the inability to obtain high-quality OCT images

Inactive Publication Date: 2014-02-12
SHANGHAI WEIJING BIOTECH CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a whole-eye optical coherence tomography adaptive imaging system and method to solve the problem in the prior art that optical coherence tomography cannot obtain high-quality OCT images in the anterior segment and posterior segment at the same time

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[0047] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0048] Such as figure 2 As shown, the whole eye calculation adaptive optical coherence tomography system of the present invention is composed of a broadband light source 10, an imaging arm 20, a reference arm 30, a detection end 40, a beam coupler 50 and a graphic image processing system 60, and its features That is, the light beam emitted by the broadband light source 10 is divided into two paths after passing through an optical coupler 50, one of which enters the reference arm 30 and is then returned to the beam coupler 50, and the other path enters the imaging arm 20 and is reflected by the imaging object and then enters optocoupler 50.

[0049] Such as image 3 As shown, in a preferred embodiment of the present invention, the imaging a...

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Abstract

The invention aims to provide a full-eyeball optical coherent tomography adaptive system and a full-eyeball optical coherent tomography adaptive method. Compared with the prior art, the full-eyeball optical coherent tomography adaptive system and the full-eyeball optical coherent tomography adaptive method have the advantages that the problem that high-quality OCT (optical coherent tomography) images cannot be simultaneously acquired at ocular anterior segments and ocular posterior segments by means of optical coherent tomography in the prior art can be effectively solved, focusing can be simultaneously carried out on ocular anterior segments and ocular posterior segments by a multi-focus imaging arm, and reference arms with different optical path differences are switched and are combined with the imaging arm, so that the ocular anterior segments and the ocular posterior segments can be imaged simultaneously; aberration introduced at the ocular anterior segments can be computed in real time by the aid of images of the ocular anterior segments, and aberration compensation can be carried out by the aid of a phase modulation array in the imaging arm, so that the high-quality OCT images can be simultaneously acquired at the ocular anterior segments and the ocular posterior segments by the aid of the full-eyeball optical coherent tomography adaptive system and the full-eyeball optical coherent tomography adaptive method.

Description

technical field [0001] The present invention relates to an adaptive imaging system and method, in particular to a whole-eye optical coherence tomography adaptive imaging system and method suitable for the field of optical coherence tomography (OCT). Background technique [0002] OCT is an imaging method based on white light interference. The principle of OCT can be compared to ultrasound imaging. In ultrasound, images are reconstructed by measuring the intensity and delay time of sound pulses reflected by tissue at different depths. Due to the high speed of light, we currently do not have the ability to directly measure the delay of light pulses. However, we can use interferometers to measure the relative delay of light to achieve tomographic images. The horizontal resolution of OCT depends on the effective numerical aperture of the optics of the imaging arm, while the axial resolution depends on the bandwidth of the light source. OCT has extremely important clinical sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/14
CPCA61B3/102
Inventor 张朝晖
Owner SHANGHAI WEIJING BIOTECH CO LTD
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