CN2059287U - Sight protector - Google Patents
Sight protector Download PDFInfo
- Publication number
- CN2059287U CN2059287U CN 89218329 CN89218329U CN2059287U CN 2059287 U CN2059287 U CN 2059287U CN 89218329 CN89218329 CN 89218329 CN 89218329 U CN89218329 U CN 89218329U CN 2059287 U CN2059287 U CN 2059287U
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- China
- Prior art keywords
- circuit
- light
- display
- utility
- model
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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.)
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an eyesight protecting device which is composed of an electronic circuit. The utility model is composed of a light detecting electric voltage sharing sampling circuit, a light-electricity controlling circuit and a display. The light detecting electric voltage sharing sampling circuit is composed of a light-electricity transducer element and a light illumination set resistor. The light-electricity controlling circuit is composed of a transistor circuit or an integrated circuit especially for detecting light. The display is a light-electricity transducer or an audio buzzer. The automatic control of the ambient light illumination can be realized by adding a relay switching circuit or changing to use a controlling silicon circuit in the original controlling circuit. The eyesight protecting device of the utility model can improve the light irradiating condition of working and learning, and can protect eyesight.
Description
The utility model relates to the electronic apparatus that is used for vision protection.
When study or work, need surrounding environment that certain illuminance is arranged.If illuminance excessively a little less than, bring influence not only for study or work, also can cause hypometropia to adolescent student.
The purpose of this utility model is to provide a kind of vision protector, is lower than national lighting standard in ambient light illumination, when eyesight is impacted; can send warning signal; reminds people is opened lighting, perhaps opens lighting automatically, enough illuminance when guaranteeing study or work.
The description of vision protector of the present utility model is as follows: vision protector is made up of photometry pressure sampling circuit, photoelectric control circuit, display three parts.The photometry pressure sampling circuit is made of electrooptical device and illuminance setting resistance, photoelectric control circuit by any circuit in transistor circuit, the electrophotometry application-specific integrated circuit (ASIC) separately or mix and forms, display then is that electrical to optical converter or audio frequency are interrogated Chinese percussion instruments.In original control circuit, increase the relay commutation circuit or use ghyristor circuit instead, can realize the automatic control of ambient light illumination.Its course of work is such, closed mains switch K, and the vision protector circuit is promptly started working, and ambient light illumination produces certain illumination E on photometry element, when ambient light illumination E is greater than or equal to according to national lighting standard by the illuminance setting resistance R
ZSThe work of setting and the minimal illumination value E of study
OThe time, photoelectric control circuit ends, and display is not worked, and the expression ambient light illumination is normal; As E＜E
OThe time, the whole conductings of photoelectric control circuit are sent light or sound equipment by display, and the expression ambient light illumination is on the low side, and the prompting people open lighting, perhaps directly open lighting automatically, realize the automatic control of ambient light illumination.
Vision protector of the present utility model can be made single-piece and use, and also can be attached on work, the schooling apparatus such as writing case, calendar stand, desk lamp, lettering pen, reading stand.
Below in conjunction with drawings and Examples vision protector of the present utility model is further elaborated.
Description of drawings:
Fig. 1 is a vision protector of making display with Light-Emitting Diode.CdS is photo resistance among the figure, R
ZSBe illuminance setting resistance, BG is a triode, and LED is a light-emitting diode, and K is a mains switch, and E is a DC power supply.
Fig. 2 is a vision protector of making display with audio ic.HTD is the piezoelectric ceramic piezo among the figure, and CW is the music integrated circuit wafer.
Fig. 3 is the vision protector that starts lighting automatically.D is a rectifier diode among the figure, and SCR is a controllable silicon, and RD is a lighting.
As embodiment of the present utility model, at first turn on the power switch K with Fig. 1, connect 3 volts of DC power supply E, vision protector is started working.When ambient light illumination during more than or equal to 100 Luxs, 625-A type photo resistance CdS is subjected to irradiate light to be low resistance, the base stage of triode 3DG6 and the voltage between emitter are lower than 0.6～0.7 volt of emitter junction forward bias voltage, triode is by not conducting, 2EF type LED does not work, and illustrates that ambient light illumination is normal; When ambient light illumination is lower than 100 Luxs, photo resistance CdS is changed by irradiate light, resistance uprises, the base stage of triode BG and the voltage between emitter are higher than 0.6～0.7 volt, eye-catching red light is sent in triode conducting, LED, illustrates that ambient light illumination is dark partially, reminds people is opened lighting, enough illuminance when guaranteeing study or work.
The advantage of vision protector of the present utility model is used this kind vision protector, and the good illuminance of surrounding environment is increased work efficiency vision protection when energy assurance work and study; Because science is used lighting, played the effect of power saving economize on electricity.
Claims (2)
1, a kind of vision protector that relates to electronic circuit is characterized in that:
Form by photometry pressure sampling circuit, photoelectric control circuit, display three parts, the photometry pressure sampling circuit is made of electrooptical device and illuminance setting resistance, photoelectric control circuit by any circuit in transistor circuit, the electrophotometry application-specific integrated circuit (ASIC) separately or mix and forms, display is that optical-electrical converter or audio frequency are interrogated Chinese percussion instrument;
In original control circuit, increase the relay commutation circuit or use ghyristor circuit instead, can realize the automatic control of ambient light illumination.
2, vision protector according to claim 1 is characterized in that vision protector can make single-piece and use, and also can be attached on work, the schooling apparatus such as writing case, calendar stand, desk lamp, lettering pen, reading stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89218329 CN2059287U (en) | 1989-10-18 | 1989-10-18 | Sight protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89218329 CN2059287U (en) | 1989-10-18 | 1989-10-18 | Sight protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2059287U true CN2059287U (en) | 1990-07-11 |
Family
ID=4873407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89218329 Withdrawn CN2059287U (en) | 1989-10-18 | 1989-10-18 | Sight protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2059287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843336A (en) * | 2017-10-25 | 2018-03-27 | 郑州云海信息技术有限公司 | A kind of pilot light shines intensity detecting device and method |
| CN110491308A (en) * | 2019-08-07 | 2019-11-22 | 国网河北省电力有限公司 | The quick-fried sudden strain of a muscle device of light sensation is torn in a kind of ground line leakproof open |
-
1989
- 1989-10-18 CN CN 89218329 patent/CN2059287U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843336A (en) * | 2017-10-25 | 2018-03-27 | 郑州云海信息技术有限公司 | A kind of pilot light shines intensity detecting device and method |
| CN110491308A (en) * | 2019-08-07 | 2019-11-22 | 国网河北省电力有限公司 | The quick-fried sudden strain of a muscle device of light sensation is torn in a kind of ground line leakproof open |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |