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Visual chart instrument for intelligently detecting vision and detection method thereof

A technology of intelligent detection and vision chart, which is used in equipment for testing eyes, medical science, diagnosis, etc.

Pending Publication Date: 2021-06-22
湖南亮视嘉生物科技有限公司
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  • Claims
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Problems solved by technology

[0003] In view of the fact that the existing traditional eye chart has the problem of inconvenience caused by the influence of the environment and light, the object of the present invention is an eye chart instrument for intelligently detecting eyesight and its detection method, which does not require a five-meter test. At the same time, the test results will not be affected by the changing environment of the site, ensuring the accuracy of naked eye vision detection

Method used

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  • Visual chart instrument for intelligently detecting vision and detection method thereof
  • Visual chart instrument for intelligently detecting vision and detection method thereof

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] From figure 1 As can be seen, the present invention is an eye chart instrument for intelligently detecting eyesight, comprising

[0036] The identity verification unit is used for the identity verification of the user, and the identity verification unit has an ID card verification mode or a face recognition mode;

[0037] The distance measurement unit, the distance measurement unit adopts multiple mirror reflections of multiple plane mirrors, and the light of the "E" word mark through multiple mirror reflections of multiple plane mirrors enters the eye, and the angle of view formed on the retina is the same as the "E" 5 meters away. "The angle of view formed by the word mark is consistent, so that the relative distance between the display ...

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Abstract

The invention discloses a visual chart instrument for intelligently detecting vision and a detection method thereof, and the instrument comprises an identity verification unit which is used for verifying the identity of a user; a distance measuring unit which adopts multiple mirror reflection of a plurality of plane mirrors so that the relative distance between the display screen and the eyes of the user is less than 5M; an infrared optometry unit which is used for optometry of eyes of the user; a vision detection unit which is used for detecting the vision of the user; and a vision detection result output unit which is used for outputting a user detection result. During detection, a five-meter test site is not needed and the detection result is not influenced by the site change environment, and the accuracy of naked eye vision detection is ensured.

Description

technical field [0001] The invention relates to an eye chart instrument for detecting eyesight and a detection method thereof. Background technique [0002] The traditional vision charts for testing optometry include the international standard version vision chart, Lang's circular vision chart and standard logarithmic vision chart, etc. The international standard vision chart is widely used and can be used in schools and hospitals. Due to the influence of the testing environment and light, traditional eye charts may fluctuate in vision testing, which brings inaccuracy to clinical fitting. The international standard version of the eye chart is E, with 14 lines in total. The standard logarithmic eye chart is tested at a distance of 5 meters. The standard vision that can distinguish the 11th line is recorded as 5.0. The corresponding visual acuity is 1.0. The word E is pressed For every doubling of the geometric progression, the logarithm of visual acuity decreases by 0.1. No...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/032
CPCA61B3/032
Inventor 许嘉鑫王瑞平王勤美
Owner 湖南亮视嘉生物科技有限公司
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