CN2699388Y

CN2699388Y - Multifunctional sight protection device

Info

Publication number: CN2699388Y
Application number: CN 200420032924
Authority: CN
Inventors: 龙德浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-20
Filing date: 2004-02-20
Publication date: 2005-05-11
Anticipated expiration: 2014-02-20

Abstract

The utility model relates to a multifunctional sight protection device which comprises an illuminance indicator, a Kj detecting prompter, a powered on reset circuit, a timing reset circuit, a KT number scale timing prompter and a power source. Kj detecting devices are different so as to form different multifunctional eyesight protectors. The protector can quantitatively solve three scientific ocular problems of poor illumination because an illumination intensity indicator can quantificationally detect whether the illumination of learning environment reaches international CIE and ministerial illumination levels, namely 500 luxes, 300 luxes and 150 luxes, bad ocular habit because when a distance between eyes and books is smaller than 1 foot, the Kj detecting devices automatically buzz to prompt users to pay attention to the read-write distance so as to correct bad read-write posture, and long remaining time for using the eyes because reaching set time, language prompt is carried out. The utility model can effectively protect eyesight and prevent nearsightedness.

Description

Multifunctional eyesight protector

The utility model relates to a kind of vision protector, particularly multifunctional eyesight protector.

The eyesight of protecting young people is to perplex people's serious problems always; because illumination is not good enough; bad with the eye custom; oversize etc. all multifactor with the eye duration; make last spectacles of too early generation of students in middle and primary schools; What is more, and the Kazakhstan machine develops into high myopia, has a strong impact on teen-age growing up healthy and sound, the back employment of growing up; choose a job and all will be very limited; this problem causes the great attention of the head of a family and society, has also taked a lot of measures, various medical treatment for this reason; the health care means; sight protectio instrument etc.; make this problem obtain in various degree solution, light partially secretly sends warning, and reminding the user to turn on light increases illumination.Adjust the reading posture, eyesight distance or the like all produces effect preferably.But exist drawbacks such as quantitative demonstration is relatively poor.

The purpose of this utility model is exactly the problem and shortage part that solves above-mentioned existence, and a kind of multifunctional eyesight protector is provided, can be quantitative tell the user, science is protected the eyesight of oneself with eye, prevents bathomorphic generation.

The invention main points of the utility model multifunctional eyesight protector are: comprise the illumination indicator; Kj detects prompting device; the KT numeration is prompting device regularly; electrify restoration circuit and timing reset circuit; power supply constitutes; different detection techniques can be realized with different sensors, different multifunctional eyesight protectors can be constituted.

Superiority of the present utility model be embodied in can be quantitative the solution science with three problems of eye: whether the not good enough problem of 1 illumination, the illumination of the detection academic environment that the illumination indicator can be quantitative reach the lighting standard of 150 luxs of 500 luxs that international CIE formulates and 300 luxs and the promulgation of China Ministry of Public Health.The bad problem of 2 usefulness eye custom, when the books distance of having hallucinations less than 1 chi, during less than 1 fist, KI detects the automatic buzzing of prompting device to chest from table, alerting keeps reading/writing distance, corrects bad read-write posture.3 usefulness are long problem at the moment; numeration timer KT sets an access time; voice suggestion is just arranged: " please do eye exercises or look far into the distance a few minutes " after the time; can avoid long with the eye duration; cause visual fatigue, help the protection of eyesight, prevent because of throwing light on not good enough; bad with eye custom, longly cause bathomorphic generation with a duration.

Accompanying drawing 1 is the utility model multifunctional eyesight protector block scheme.

Accompanying drawing 2 is circuit diagrams of the utility model multifunctional eyesight protector diffuse reflection multifunctional eyesight protector.

Below with reference to the accompanying drawing description detailed in addition to the utility model multifunctional eyesight protector:

Accompanying drawing 1 is the utility model multifunctional eyesight protector block scheme, and this figure detects prompting device, electrify restoration circuit and timing reset circuit KT numeration by illumination indicator KJ, and regularly prompting device, five parts of power supply are formed.

Accompanying drawing 2 is the utility model multifunctional eyesight protector diffuse reflection type multifunctional eyesight protector circuit diagrams.Illumination indicator＜APJ-DB-1〉make thick film functional membrane piece, when the illumination zone of academic environment reaches the illumination that the CIE of International Commission on Illumination formulates is 500 luxs, the pilot lamp of this instrument was bright when the classroom average illumination of 300 luxs and China Ministry of Public Health promulgation was the standard of 150 luxs, otherwise pilot lamp does not work, prompting is changed fluorescent tube, bulb or is increased lighting source, guarantees the lighting requirement of academic environment.Kj detects prompting device and is made up of infrared switch (E3jk-PS30M1) and a hummer, 4 pin and 3 pin are in normally open when powering on, hummer power supply access failure, so not buzzing, when the user from the distance of books during less than 1 chi, 4 pin and 3 pin short circuits, the hummer power connection, send buzzing, alerting keeps the eyesight distance, to correct bad read-write posture.Electrify restoration circuit is made up of R3, C3 integrating circuit and four schmidt trigger reversers of 1A～4A, when R3, the accumulation of C3 integrating circuit level, when surpassing the threshold level of Si Mite triggering reverser, 1A becomes low level suddenly, 2A becomes high level suddenly, guarantee that R4, C4 differentiating circuit produce a serrate positive pulse, trigger reverser 3A and high level burst pulse of 4A formation through Si Mite again, can guarantee that just KT numeration timing circuit (4060) and (4020) electrification reset is zero; The timing reset circuit is made up of R5C5 differentiating circuit and schmidt trigger reverser 5A thereof and 6A, when numeration timing KT, 4020 2 pin level rise suddenly, guarantee that the R5C5 differentiating circuit produces a serrate positive pulse, this sawtooth pulse just forms a high level burst pulse through 5A, 6A, make timer be reset to zero, then begin numeration again regularly, trigger the integrated circuit I SD1416 of language simultaneously, and send " please do eye exercises or look far into the distance a few minutes " verbal cue, lasting long between having avoided once using at the moment, prevent kopiopia.

Two diode IN4148 isolate electrify restoration circuit and timing reset circuit, avoid influencing each other.(C2 (75p) of 110p～560P), the reverser that carries with 4060 inside constitute crystal oscillator to be connected on crystal 3 2.768KHz on 4060 the pin 10 and 11, resistance R 1 (105), capacitor C 14, its frequency is 32768HZ, through 4060 and 4020 frequency divisions, pin 2 outputs from 4020 have carried out 2 altogether ²⁷Frequency division, i.e. (32768 ÷ 2 ²⁷) ^-1÷ 60=68 minute,, just sent suggestion voice " please do setting-up exercises or look far into the distance a few minutes " every 34 minutes because be 34 minutes in solid this vision protector verbal cue time that the rising edge of 4020 2 pin detects KT.

With the active infrared sensor formula Ki detection technique that achieves a butt joint, just constituted the dock multifunctional eyesight protector.

Reflective Ki detection technique with pyroelectric infrared sensor+reflecting plate is realized has constituted reflective multifunctional eyesight protector.

Realize that with the ultrasound wave Multifunction Sensor ultrasound wave KI detects skill, constitute Kj ultrasound wave multifunctional eyesight protector.

Above-mentioned three kinds of its basic circuits of multifunctional eyesight protector, the technical scheme of solution and embodiment diffuse reflection type infrared multifunctional vision protector, basic identical; Belong to same design invention.

Claims

1, a kind of multifunctional eyesight protector comprises illuminated indicator, and Kj detects prompting device, electrify restoration circuit and timing reset circuit, and KT counting and timing prompting device, power supply constitutes, and it is characterized in that Kj detects prompting device and adopts infrared switch (E3jk-DS30M1).

2, multifunctional eyesight protector according to claim 1 is characterized in that Kj detects prompting device and adopts the active infrared sensor.

3, multifunctional eyesight protector according to claim 1 is characterized in that Kj detects prompting device and adopts pyroelectric infrared sensor+reflecting plate.

4, multifunctional eyesight protector according to claim 1 is characterized in that Kj detects prompting device and adopts ultrasonic sensor.