Optical diagnostic instrument for observing eye

Abstract

An optical diagnosing instrument for observing human eye iris and obtaining the image and data of iris at same time is composed of the optical camera-computer channel and the optical channel for visual observation, which device the light axises perpendicular to each other. Said optical channel for camera and computer consists of collimator, reflector, incident surface of prism, focusing lens and camera connected to computer via A / D converter. Said optical channel for visual observation has focusing lens for observation and binocular eyepiece. Its advantages are more functions, high diagnosing efficiency and high correctness.

Description

Technical field: [0001] The invention relates to an optical diagnostic instrument for observing the eyes, which is mainly used for observing the iris of the human eye and obtaining iris images and data at the same time. The images can be observed and preserved for disease diagnosis or identification. Background technique: [0002] In the prior art, the inventor Luo Yonghong provided an optical device of an "iris inspection aid" in a utility model patent (patent No. ZL92235084.1), the structure of which is as follows: figure 1 shown. The optical device of the utility model patent (patent number ZL99217063.X) "iris image acquisition device" provided by the Institute of Automation, Chinese Academy of Sciences, the structure is as follows figure 2 shown. prior art[1] figure 1 The observer's eye 3 observes the subject's eye 1 through a magnifying glass 2, which is usually a short-focus monocular eyepiece. prior art[2] figure 2 , using a camera lens 4 to image the subject's...

AI Technical Summary

Problems solved by technology

[0004] 1. Single function

like figure 1 The system shown can only observe the subject's eye 1 by the observer, but cannot record the digital image of the iris of the subject's eye 1; figure 2 The device shown can only obtain a digital image of the iris of the subject's eye 1, and the observer cannot directly see the texture structure of the iris

[0005] 2. Low diagnostic efficiency and poor accuracy

because for figure 1 The device shown can only be diagnosed and analyzed by the observer on the texture structure of the iris of the subject's eye 1, the diagnostic efficiency is low, there is a certain degree of subjectivity, and there is no image for medical history records; and for figure 2 The device shown is intended to diagnose and analyze the iris texture, which can only be completed by a computer, which has poor flexibility and affects the accuracy of diagnosis

[0006] 3. The observer is prone to fatigue, which is not good for the diagnostic effect

figure 1 The device shown has only one light path, and the eyepiece observer can only observe with one eye, and the observer's eyes are prone to fatigue, which will affect the reliability of the diagnostic results

[0007] 4. The working distance is short, which is easy to cause damage to the eyes of the examinee

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