Remote controlled test chart

Abstract

A remotely controlled lest chart is composed of a test chart case with test chart, infrared receiver, LEDs for all signs (one for one), received signal converter, loudspeaker and light source, and a remote controller consisting of encoder, infrared emitter and keys. Said LED is a bichromatic one, so it can also test color amblyopia.

Description

Technical field: [0001] The invention relates to a vision detection device in medicine, in particular to a remote-controlled vision chart. Background technique [0002] At present, it is still a common method in medicine to test vision through the international standard eye chart. It mainly places the international standard eye chart at a certain distance in front of the subject, and the medical staff holds the indicator stick. Judging the opening direction of the detection symbol of the indication point, this method not only has a heavy workload for medical staff and is prone to fatigue, but also affects the accuracy of detection when the light is insufficient. In order to solve the problem that insufficient light may affect the accuracy of detection, the international standard eye chart is specially made into a light box. Although this improvement can also solve the impact of insufficient light, it still cannot solve the problem of heavy workload and easy fatigue of medica...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in view of the heavy workload of traditional Chinese medicine nurses who use the current vision detection device, they are prone to fatigue, especially in the detection of ZL94226710. The direction of the signal is displayed on the key surface, and it is necessary to listen to the judgment voice issued by the subject or observe the gesture of the subject. It is very inconvenient to use the practical problem, and a new remote control eye chart is provided.

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