Visual chart instrument for intelligently detecting vision and detection method thereof

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...

Examples

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 ...

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...

Examples

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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