CN202662136U - Computer-mounted myopia prevention device - Google Patents
Computer-mounted myopia prevention device Download PDFInfo
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- CN202662136U CN202662136U CN 201220203982 CN201220203982U CN202662136U CN 202662136 U CN202662136 U CN 202662136U CN 201220203982 CN201220203982 CN 201220203982 CN 201220203982 U CN201220203982 U CN 201220203982U CN 202662136 U CN202662136 U CN 202662136U
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Abstract
The utility model discloses a computer-mounted myopia prevention device, comprising a small plastic shell. The device is characterized in that a prompting device and an infrared detecting probe are arranged on the shell; the prompting device includes a display screen prompter and a voice prompter; the infrared detection probe is connected with the voice prompter and the display screen prompter through a control circuit; the control circuit is connected with an external power supply through a data line of a USB interface; the back of the shell is provided with a rotatable and detachable elastic clip; and the elastic clip can be used to better fix the myopia prevention device of the computer on a computer display screen. The computer-mounted myopia prevention device has the advantages that wrong postures of the youth or working staff during computer using can be effectively corrected to prevent the occurrence of myopia, humpback and other diseases; the device occupies a small space and can be flexibly and movably installed on the computer display screen; and the device is low in preparation cost, simple in structure and easy to use.
Description
Technical field
The utility model relates to the pre-myopia prevention device of a kind of computer.
Background technology
Myopia is a kind of eye illness that long-term close eye causes.People's rhythm of life is accelerated now, and Working Life needs close eye, keeps correct sighting distance, particularly teenager to be easy to cause myopia as not noting.Especially now along with the development of network, popularizing of computer, the teenager uses computer more and more, time is more and more longer, and be sitting in for a long time the fatigue that easily causes eyes before the computer, the distance of eyes and computer display screen is also more and more nearer simultaneously, has caused unconsciously myopia or has deepened myopia degree.So the eyesight of protecting young people, become instant thing.And at present relevant near-sighted instrument all is in the near-sighted later treatment of patient or rescues, and result for the treatment of is undesirable.
Summary of the invention
It is near-sighted and hunchback, simple in structure that technical problem to be solved in the utility model provides a kind of computer user that prevents, the pre-myopia prevention device of computer that volume is small and exquisite.
The utility model solves the problems of the technologies described above the technical scheme that adopts: the pre-myopia prevention device of a kind of computer, comprise small-sized plastic casing, be provided with suggestion device and infra-red detection probe on the described housing, described suggestion device comprises display screen prompting device and sound prompting device, described infra-red detection probe by control circuit and described auditory tone cues device be connected the display screen prompting device and be connected, the data line that described control circuit passes through USB interface is connected with external power source.
The back side of described housing is provided with rotatable and dismountable Flexible clamp.Use this Flexible clamp the pre-myopia prevention device of computer better can be fixed on the computer display screen.
The infrared light beam emission length of described infra-red detection probe is 49-51cm.
Described infra-red detection probe comprises power valve and receiving tube, described control circuit comprises the monolithic control module, 2 pin of described monolithic control module are connected with resistance R 7 one ends, resistance R 7 other ends are connected with the base stage of triode Q2, the grounded emitter of triode Q2, the collector of triode Q2 is connected with the end of swept resistance R8, and the other end of swept resistance R8 is connected with the end of power valve D4, and the other end of power valve D4 is connected with power supply; 3 pin of monolithic control module are connected with resistance R 9 one ends, and resistance R 9 other ends are connected with the base stage of triode Q3, the grounded emitter of triode Q3, and the collector of triode Q3 is connected with an end of auditory tone cues device, and the other end of auditory tone cues device is connected with power supply; 4 pin of monolithic control module are connected with an end of resistance R 2, resistance R 3 and capacitor C 4, the other end of resistance R 2 is connected with 1 pin of receiving tube, the other end of resistance R 3 is connected with power supply, the other end ground connection of capacitor C 4,2 pin of receiving tube and capacitor C 3 are connected with polar capacitor C1 that end is connected and ground connection, the polar capacitor C1 other end is connected with power supply, and capacitor C 3 other ends connect 3 pin of receiving tube and an end of resistance R 1, and the other end of resistance R 1 is connected with power supply; 5 pin of monolithic control module are connected with resistance R 4 one ends, the other end of resistance R 4 is connected with the base stage of triode Q1, the grounded emitter of triode Q1, the collector of triode Q1 is connected with resistance R 6 one ends, the other end of resistance R 6 is connected with the display screen prompting device, described display screen prompting device is composed in series by D1, D2, three light emitting diodes of D3,8 pin ground connection of monolithic control module.
Compared with prior art, the utility model has the advantage of: the pre-myopia prevention device of the utility model computer, comprise small-sized plastic casing, be provided with suggestion device and infra-red detection probe on the housing, suggestion device comprises display screen prompting device and sound prompting device, the infra-red detection probe is by control circuit and auditory tone cues device and display screen prompting device, control circuit is connected with external power source by the data line of USB interface, before the pre-myopia prevention device of this computer is fixed in the computer display screen curtain, the usb data line is connected with computer USB interface, when 50 centimetres of eyes and computer monitor less thaies, the display screen prompting device is with demonstration three words that sit up straight, in time remind the student to sit up straight, if after 30 seconds, do not sit up straight yet, verbal cue will occur in the auditory tone cues device, until child's eyes and computer monitor be when keeping 50cm above, the voice suggestion autoshutdown.
In sum, the pre-myopia prevention device of this computer can not only effectively be corrected teenager or the incorrect posture of staff when using computer, reach the generation of the illnesss such as pre-myopia prevention, hunchback, and it is little to take volume, can move flexibly and be installed on the computer display screen, preparation cost is low, and is simple in structure, easy to use.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit connection diagram of the present utility model.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Specific embodiment
The pre-myopia prevention device of the utility model computer, comprise small-sized plastic casing 1, be provided with suggestion device and infra-red detection probe 2 on the housing 1, suggestion device comprises display screen prompting device 3 and sound prompting device 4, infra-red detection probe 2 is connected with the display screen prompting device with auditory tone cues device 4 by control circuit and is connected, and the data line 5 that control circuit passes through USB interface is connected with external power source.
In this specific embodiment, the back side of housing 1 is provided with rotatable and dismountable Flexible clamp 6; The infrared light beam emission length of infra-red detection probe 2 is 49-51cm;
As shown in Figure 2, circuit connection structure of the present utility model is as follows:
Q1-Q3 is triode, and R1-R8 is resistance, the C1 polar capacitor, C2, C3 are electric capacity, and D1, D2, D3 are that light emitting diode, D4 are power valve, and infra-red detection probe 2 comprises power valve and receiving tube, auditory tone cues device 4 is for being provided with the musical film of loudspeaker, and display screen prompting device 3 is pilot lamp.
Control circuit comprises monolithic control module 7,2 pin of monolithic control module 7 are connected with resistance R 7 one ends, resistance R 7 other ends are connected with the base stage of triode Q2, the grounded emitter of triode Q2, the collector of triode Q2 is connected with the end of swept resistance R8, the other end of swept resistance R8 is connected with the end of power valve D4, and the other end of power valve D4 is connected with power supply;
3 pin of monolithic control module 7 are connected with resistance R 9 one ends, resistance R 9 other ends are connected with the base stage of triode Q3, the grounded emitter of triode Q3, the collector of triode Q3 is connected with an end of auditory tone cues device 4, and the other end of auditory tone cues device 4 is connected with power supply;
4 pin of monolithic control module 7 are connected with an end of resistance R 2, resistance R 3 and capacitor C 4, the other end of resistance R 2 is connected with 1 pin of receiving tube, the other end of resistance R 3 is connected with power supply, the other end ground connection of capacitor C 4,2 pin of receiving tube and capacitor C 3 are connected with polar capacitor C1 that end is connected and ground connection, the polar capacitor C1 other end is connected with power supply, and capacitor C 3 other ends connect 3 pin of receiving tube and an end of resistance R 1, and the other end of resistance R 1 is connected with power supply;
5 pin of monolithic control module 7 are connected with resistance R 4 one ends, the other end of resistance R 4 is connected with the base stage of triode Q1, the grounded emitter of triode Q1, the collector of triode Q1 is connected with resistance R 6 one ends, the other end of resistance R 6 is connected 3 with the display screen prompting device, display screen prompting device 3 is composed in series by D1, D2, three light emitting diodes of D3,8 pin ground connection of monolithic control module 7.
Claims (4)
1. pre-myopia prevention device of computer, comprise small-sized plastic casing, it is characterized in that: be provided with suggestion device and infra-red detection probe on the described housing, described suggestion device comprises display screen prompting device and sound prompting device, described infra-red detection probe by control circuit and described auditory tone cues device be connected the display screen prompting device and be connected, the data line that described control circuit passes through USB interface is connected with external power source.
2. the pre-myopia prevention device of computer according to claim 1, it is characterized in that: the back side of described housing is provided with rotatable and dismountable Flexible clamp.
3. the pre-myopia prevention device of computer according to claim 1 is characterized in that: the infrared light beam emission length of described infra-red detection probe is 49-51cm.
4. the pre-myopia prevention device of computer according to claim 1, it is characterized in that: described infra-red detection probe comprises power valve and receiving tube, described control circuit comprises the monolithic control module, 2 pin of described monolithic control module are connected with resistance R 7 one ends, resistance R 7 other ends are connected with the base stage of triode Q2, the grounded emitter of triode Q2, the collector of triode Q2 is connected with the end of swept resistance R8, the other end of swept resistance R8 is connected with the end of power valve D4, and the other end of power valve D4 is connected with power supply; 3 pin of monolithic control module are connected with resistance R 9 one ends, and resistance R 9 other ends are connected with the base stage of triode Q3, the grounded emitter of triode Q3, and the collector of triode Q3 is connected with an end of auditory tone cues device, and the other end of auditory tone cues device is connected with power supply; 4 pin of monolithic control module are connected with an end of resistance R 2, resistance R 3 and capacitor C 4, the other end of resistance R 2 is connected with 1 pin of receiving tube, the other end of resistance R 3 is connected with power supply, the other end ground connection of capacitor C 4,2 pin of receiving tube and capacitor C 3 are connected with polar capacitor C1 that end is connected and ground connection, the polar capacitor C1 other end is connected with power supply, and capacitor C 3 other ends connect 3 pin of receiving tube and an end of resistance R 1, and the other end of resistance R 1 is connected with power supply; 5 pin of monolithic control module are connected with resistance R 4 one ends, the other end of resistance R 4 is connected with the base stage of triode Q1, the grounded emitter of triode Q1, the collector of triode Q1 is connected with resistance R 6 one ends, the other end of resistance R 6 is connected with the display screen prompting device, described display screen prompting device is composed in series by D1, D2, three light emitting diodes of D3,8 pin ground connection of monolithic control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203982 CN202662136U (en) | 2012-05-07 | 2012-05-07 | Computer-mounted myopia prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220203982 CN202662136U (en) | 2012-05-07 | 2012-05-07 | Computer-mounted myopia prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662136U true CN202662136U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220203982 Expired - Fee Related CN202662136U (en) | 2012-05-07 | 2012-05-07 | Computer-mounted myopia prevention device |
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| Country | Link |
|---|---|
| CN (1) | CN202662136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112339A (en) * | 2014-06-27 | 2014-10-22 | 廖晖 | Equipment capable of correcting sitting posture of computer user |
-
2012
- 2012-05-07 CN CN 201220203982 patent/CN202662136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112339A (en) * | 2014-06-27 | 2014-10-22 | 廖晖 | Equipment capable of correcting sitting posture of computer user |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140507 |