Scanning-type living body human eye retina high-resolution imaging system

An eye retina and high-resolution technology, applied in the field of adaptive optics fundus imaging, can solve problems such as difficult to control imaging areas, inability to achieve imaging in different areas, and greater impact, so as to expand the scope of application of the crowd and improve aberration correction capacity, the effect of reducing requirements

Inactive Publication Date: 2013-11-20
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

This method requires a high degree of cooperation from the subject, and is greatly affected by the subject's subjective factors, making it difficult to achieve precise imaging area control
The Chinese patent with the publication number CN101612032A introduces a method of adding a scanning galvanometer to realize the illumination of different areas of the retina, but this method cannot realize the imaging of different areas

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  • Scanning-type living body human eye retina high-resolution imaging system
  • Scanning-type living body human eye retina high-resolution imaging system

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Embodiment Construction

[0025] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] In order to illustrate the implementation process of the present invention clearly and in detail, some specific embodiments of the present invention are given below. Details and functions that are unnecessary to the present invention have been omitted during the description to prevent obscuring the understanding of the present invention.

[0027] Such as figure 1 As shown, the scanning high-resolution imaging system of living human retina consists of a near-infrared beacon light source 1, a collimating mirror 2, a beacon diaphragm 3, a first beam splitter 4, an illumination light source 5, a collimating mirror 6, and a plane reflection Mirror 7, second beam splitter 8, Y-direction scanning mirror 9, first lens 10, second lens 11, X-direction scanning mirror 12, third lens 13, fourth lens 14, first wavefront corrector 15, the first Five...

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Abstract

A scanning-type living body human eye retina high-resolution imaging system comprises a beacon light emitting subsystem, a human eye wave aberration correction subsystem, a retina imaging area scanning subsystem, a control subsystem and a lighting imaging subsystem, wherein the beacon light emitting subsystem provides a beacon light source for measurement and correction of human eye aberration, the human eye wave aberration correction subsystem is composed of double wave front correctors and used for correcting the human eye aberration, and the retina imaging area scanning subsystem comprises an X-direction scanning mirror and a Y-direction scanning mirror. The control subsystem controls the two scanning mirrors to complete scanning of a retina imaging area and controls the wave front correctors to complete the correction of the human eye aberration. According to the lighting imaging subsystem, a lighting light source provides optical radiation which enters the human eye lighting retinas along light paths, and an imaging system body and a camera are used for shooting high-resolution images on the eye ground retinas. The scanning-type living body human eye retina high-resolution imaging system lowers the requirements on a testee, reduces the influences of subjective factors of the testee and improves accuracy.

Description

technical field [0001] The invention relates to an adaptive optics fundus imaging technology, which is a scanning high-resolution imaging system of living human retina, which can be widely used for high-resolution imaging of living human retina. Background technique [0002] In addition to low-order aberrations such as defocus and astigmatism, human eye aberrations also contain high-order aberration components that cannot be ignored. At present, ordinary commercial ophthalmic equipment such as fundus cameras can only statically compensate low-order human eye aberrations, so the overall optical resolution cannot reach the diffraction-limited level. Adaptive optics technology just makes up for this defect and directly promotes the development of fundus imaging and optometry. In 1997, D.R.Williams of the University of Rochester in the United States took the lead in the world to use Adaptive Optics (AO) technology to correct the high-order aberrations of the human eye, and obta...

Claims

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Application Information

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IPC IPC(8): A61B3/12A61B3/14
Inventor 张雨东肖飞戴云赵军磊康健赵豪欣
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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