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Optical component and retina imaging device

A technology for optical components and imaging devices, which is applied in the field of medical devices and can solve problems such as inability to obtain clear and obvious retinal images.

Pending Publication Date: 2020-03-20
REYEMICO (ZHEJIANG) MEDICAL TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when imaging with a retinal imaging device, a clear and distinct retinal image cannot be obtained

Method used

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  • Optical component and retina imaging device
  • Optical component and retina imaging device
  • Optical component and retina imaging device

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0037] The inventors of the present invention found that the reasons why the existing retinal imaging device cannot obtain a clear and obvious retinal image are as follows:

[0038] The reflectivity of the retina of the human eye to light is extremely low, about 10 of the incident light intensity. -3 to 10 -4 order of magnitude. The retroreflected light of the optical elements in the retinal imaging device and the retroreflected light of the cornea are about 10 of the incident light intensity. -1 to 10 -2 order of magnitude. It can be known from this that the light intensity of the retroreflected light from the optical elements in the retinal imaging device...

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Abstract

The invention provides an optical component used for a retina imaging device. The optical component comprises a spectroscope, a scanning galvanometer and a scanning module, wherein the spectroscope isused for guiding light on a peripheral portion of a light beam, which shines into the spectroscope, to the scanning galvanometer, and for preventing light on the middle portion of the light beam fromreaching the scanning galvanometer; the scanning galvanometer is used for reflecting the light, which is guided by the spectroscope to the scanning galvanometer, onto the scanning module, and for receiving detection light emitted by the scanning module, and the scanning galvanometer is further used for reflecting the detection light emitted by the scanning module onto the spectroscope; and the spectroscope is further used for guiding the light, which is reflected by the scanning galvanometer onto the spectroscope, to an imaging position used for arranging an imaging module. The retina imagingdevice is further provided. Retina images obtained by the retina imaging device are sharp.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an optical assembly for a retinal imaging device and a retinal imaging device including the optical assembly. Background technique [0002] The retinal image of the human eye is an indispensable and important information in ophthalmology diagnosis and treatment. Real-time tracking of the topographic changes of the fundus retina will help the early diagnosis and prevention of physical diseases. [0003] Generally, a retinal imaging device includes an optical component and an imaging module, wherein the optical component includes a light source module, a beam splitter, a scanning galvanometer and a scanning module. The light source module emits light toward the beam splitter, the beam splitter reflects the light emitted by the light source to the scanning galvanometer, and the scanning galvanometer reflects the light to the scanning module, and the light passing through the scanning ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/14A61B3/12G02B5/08G02B27/10
CPCA61B3/0008A61B3/12A61B3/14G02B5/08G02B27/10
Inventor 何益王清扬
Owner REYEMICO (ZHEJIANG) MEDICAL TECH LTD