All-eye frequency-domain optical coherence tomography system and method

An optical coherence tomography and imaging system technology, which is applied in the field of the whole eye frequency domain optical coherence tomography imaging system, can solve the problems of low energy utilization rate, reduced image signal-to-noise ratio, complex structure, etc.

Active Publication Date: 2013-08-21
维视艾康特(广东)医疗科技股份有限公司 +1
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Problems solved by technology

Although this method uses a light source and spectrometer system, multiple fiber couplers are used for light splitting, the structure is more complicated, and the energy utilization rate is low, which reduces the signal-to-noise ratio of the image.

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  • All-eye frequency-domain optical coherence tomography system and method
  • All-eye frequency-domain optical coherence tomography system and method
  • All-eye frequency-domain optical coherence tomography system and method

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Embodiment Construction

[0029] Combine below figure 1 , figure 2 and image 3 The structure and working principle of the present invention are described in detail.

[0030] A whole-eye frequency-domain optical coherence tomography system, comprising

[0031] a light source for outputting a light beam;

[0032] A sample arm, an electric double-mirror flipping device 1 is set in the sample arm, which is used to adjust the optical path setting of the light beam entering the human eye;

[0033] A reference arm, an optical path switching device 2 is arranged in the reference arm for adjusting the isoptic plane in the sample arm;

[0034] The spectrometer 4 is used for interfering the reflected light of the sample arm and the reflected light of the reference arm to form an interference spectrum imaging.

[0035] A fiber coupler 5 is set in front of the light source, and the fiber coupler 5 is connected to the sample arm and the reference arm at the same time. The sample arm is set with a two-dimensio...

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Abstract

The invention relates to all-eye frequency-domain optical coherence tomography system and method. The method includes: a, an electric double-reflector turnover device is set in a sample arm, double reflectors image the anterior segment when in an optical path and image the fundus retina when moved out of the optical path; b, an optical distance switching device is set in a reference arm, incoming light is divided into three optical distances, the optical path returns in the same way to interfere with light reflected by the sample arm so that interference spectrum is formed, one anterior segment image and one fundus image are obtained sequentially after the interference spectrum is output from a fiber-optic coupler to a spectrograph; and c, trigger signals of the electric double-reflector turnover device and the optical distance switching device are controlled under synchronous operation. The method has the advantages that the form of the anterior segment and the form of the fundus are measured accurately and simultaneous imaging of the anterior segment and the fundus is achieved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a whole-eye frequency-domain optical coherence tomography system and a method thereof for simultaneously imaging the anterior segment of the human eye and the retina based on a dual-channel and optical path fast switching method. Background technique [0002] Optical coherence tomography (OCT) is a new imaging technology based on the principle of low-coherence optical interference. It has the characteristics of high resolution, fast scanning imaging, non-contact and non-destructive detection, and is widely used in the field of medical imaging. . Spectral domain OCT uses the spectrometer detection system to obtain interference spectral signals, and obtains depth information through Fourier transform, thereby further improving the imaging speed and imaging sensitivity. Spectral domain OCT is an important ophthalmic optical imaging technique. [0003] At present, ophth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/14A61B3/12A61B3/10
CPCA61B3/102
Inventor 朱德喜沈梅晓袁一民邵一磊
Owner 维视艾康特(广东)医疗科技股份有限公司
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