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Eyesight protector

A technology of protector and vision, applied in the direction of instruments, alarms, etc., can solve the problems of students and parents lack of vision care, lack of professional institutions for treatment, etc., to achieve the effect of protecting eyesight, easy to promote and use, and easy to use.

Inactive Publication Date: 2016-06-22
SHAANXI YATAI ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The survey shows that more than 50% of the students and their parents lack the most basic scientific knowledge of vision care, and do not understand the dangers of "myopia and blindness are only one step away". Therefore, 41.6% of the students with low vision have not taken any corrective measures, and they lack professional knowledge. institutional treatment

Method used

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  • Eyesight protector

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Embodiment Construction

[0025] Such as figure 1 The vision protector shown includes a distance measuring sensor 1 for detecting the distance between the reader's face and the desktop, a photoresistor 2 for detecting the current reading and writing environment light illuminance, and a photoresistor 2 for receiving the output of the distance measuring sensor 1. The first amplifier 3 for amplifying the distance signal, the first filter 5 for receiving the output signal of the first amplifier 3 and performing filtering processing, and the first filter 5 for receiving the output signal of the first filter 5 and converting it into a digital signal An analog-to-digital conversion circuit 7, a second amplifier 4 for receiving the illuminance signal output by the photoresistor 2 and performing amplifying processing, a second filter 6 for receiving the output signal of the second amplifier 4 and performing filtering processing, and a second filter 6 for receiving The second analog-to-digital conversion circuit...

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Abstract

The invention discloses an eyesight protector, which comprises a ranging sensor used for detecting the distance between the face of a reader and a desktop, a photosensitive resistor used for detecting the light intensity of a current reading and writing environment, and a main controller. An output end of the main controller is connected to a first alarm device used for alarming when the distance between the face of the reader and the desktop is smaller than 20cm. The output end of the main controller is further connected to a second alarm device used for alarming when the light intensity of the current reading and writing environment is insufficient. The eyesight protector has the advantages of simple structure and convenient use, and can effectively urge people to protect the eyesight.

Description

technical field [0001] The invention belongs to the technical field of vision protection, and in particular relates to a vision protector. Background technique [0002] Students' myopia has become an increasingly serious social problem in our country. The relevant state departments have clear vision requirements for many occupations, and once myopia is lost, it is impossible to restore the original vision no matter how much money is spent on treatment. Experts believe that the main cause of students' myopia is incorrect reading and writing postures. The State Education Commission stipulates that when students read and write, they should keep their eyes one foot away from the reading material and punch their body away from the desk under a certain brightness. With so much study pressure and so much study time, the poor eyesight of teenagers has become a public health issue of common concern at home and abroad. The survey shows that more than 50% of the students and their p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/24
Inventor 张蓉
Owner SHAANXI YATAI ELECTRIC APPLIANCE
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