CN2284609Y - Electronic vision protector - Google Patents
Electronic vision protector Download PDFInfo
- Publication number
- CN2284609Y CN2284609Y CN 96246548 CN96246548U CN2284609Y CN 2284609 Y CN2284609 Y CN 2284609Y CN 96246548 CN96246548 CN 96246548 CN 96246548 U CN96246548 U CN 96246548U CN 2284609 Y CN2284609 Y CN 2284609Y
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- Prior art keywords
- utility
- power consumption
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- human body
- indicating lamp
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an electronic eyesight protector which can send out an acoustooptical alarm signal when a student uses eyes in close quarters. The utility model adopts the structure that in an insulating shell, a reflection type infrared detection head is fixed to the insulating shell in an included angle and is electrically connected with a micro power consumption distance measuring module, a battery, a power switch, a buzzer and a luminous indicating lamp. When the utility model is used, the electronic eyesight protector is arranged exactly in front of a human body and keeps a distance of approximate 35 centimeters with the human body; when power switch is switched on, the utility model is in an alert state; when the distance between the face of the human body and a tabletop is less than 35 centimeters, the luminous indicating lamp emits light; at the same time, the buzzer sends out alarm sound.
Description
This utility model relates to a kind of device of protecting student eyesight, especially sends the electronic eyesight protecting unit of sound and light alarm during student's close eye.
The nineteen ninety-five whole nation physical health of students finding of announcing at present shows that national big and medium-sized cities myopia of student rate is higher, and the rural area is in rising trend, and its students in middle and primary schools' rate of myopia is 22.78%, and the junior middle school is 55.22%, and senior middle school is 70.34%.The myopia of student rate is high, and topmost immediate cause is that student's schoolwork burden is overweight, due to the close eye overlong time.
The purpose of this utility model provides a kind of electronic eyesight protecting unit, sends sound and light alarm when student's close eye.
The purpose of this utility model is achieved in that in insulation crust, reflection type infrared detecting head, and little power consumption range finder module, on and off switch, battery are electrically connected.When the human face apart from desktop during less than 35 centimeters, luminous indicating lamp is luminous, interrogates the Chinese percussion instrument warning of sounding simultaneously, reaches the purpose of protection student eyesight.
Owing to adopt such scheme, can when student's close eye, send sound and light alarm, adopted little power consumption range finder module, detection range is accurate, and power consumption is less than 2 milliamperes, and battery powered suits to use for a long time.
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the vertical part surface structural map of electronic eyesight protecting unit embodiment.
Fig. 3 is the vertical section structural map of reflection type infrared detecting head.
Among the figure 1, on and off switch 2, luminous indicating lamp 3, insulation crust 4, reflection type infrared detecting head 5, little power consumption range finder module 6, infrared emission tube 7, photosensitive receiving tube 8, battery 9, news Chinese percussion instrument 10, filter glass 11, insulating support.
In Fig. 1, on and off switch (1), battery (8), little power consumption range finder module (5) series connection, infrared emission tube (6), photosensitive receiving tube (7), luminous indicating lamp (2), news Chinese percussion instrument (9) and each pin of little power consumption range finder module (5) are electrically connected.
In the embodiment shown in Figure 2, reflection type infrared detecting head (4) becomes angle to fix with insulation crust (3), point to human body face, the anterior filter glass (10) of installing, it is fixing that luminous indicating lamp (2) and on and off switch (1) expose insulation crust (3), little power consumption range finder module (5), news Chinese percussion instrument (9), battery (8) then fixedly mounts in insulation crust (3) internal cavity appropriate location, and with on and off switch (1), battery (8), little power consumption range finder module (5) series connection, infrared emission tube (6), photosensitive receiving tube (7), luminous indicating lamp (2), each pin of news Chinese percussion instrument (9) and little power consumption range finder module (5) is electrically connected.Reflection type infrared detecting head (4) as shown in Figure 3 is installed on the insulating support (11) side by side by infrared emission tube (6) and photosensitive receiving tube (7) to be formed.
Claims (3)
1, a kind of electronic eyesight protecting unit; in cutting off shell; form by infrared emission tube and photosensitive receiving tube; infrared detection unit; little power consumption range finder module, battery, on and off switch, news Chinese percussion instrument, luminous indicating lamp, electrical connection; it is characterized in that: infrared detection unit becomes angle to fix with insulation crust, points to human body face.
2, electronic eyesight protecting unit according to claim 1 is characterized in that: infrared emission tube and photosensitive receiving tube be arranged in parallel, and therebetween for insulating support carries out light shield, filter glass is installed in the place ahead.
3, electronic eyesight protecting unit according to claim 1 is characterized in that: little power consumption range finder module, and detection range is accurate, and only 2 milliamperes of power consumption are suitable for using for a long time battery powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96246548 CN2284609Y (en) | 1996-11-12 | 1996-11-12 | Electronic vision protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96246548 CN2284609Y (en) | 1996-11-12 | 1996-11-12 | Electronic vision protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284609Y true CN2284609Y (en) | 1998-06-24 |
Family
ID=33919094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96246548 Expired - Fee Related CN2284609Y (en) | 1996-11-12 | 1996-11-12 | Electronic vision protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284609Y (en) |
-
1996
- 1996-11-12 CN CN 96246548 patent/CN2284609Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |