CN2159880Y - Writing pen for preventing shortsightedness - Google Patents
Writing pen for preventing shortsightedness Download PDFInfo
- Publication number
- CN2159880Y CN2159880Y CN 93219562 CN93219562U CN2159880Y CN 2159880 Y CN2159880 Y CN 2159880Y CN 93219562 CN93219562 CN 93219562 CN 93219562 U CN93219562 U CN 93219562U CN 2159880 Y CN2159880 Y CN 2159880Y
- Authority
- CN
- China
- Prior art keywords
- lettering pen
- pen
- photo resistance
- relay
- potentiometer
- Prior art date
- 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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- Pens And Brushes (AREA)
Abstract
The utility model relates to a writing pen for preventing shortsightedness, which can be used for identifying and displaying the intensity of the illumination light ray. Photoresistance is arranged on the head of the pen; a control system and an alarm system are arranged in the rod of the pen, the control system is composed of an integrated block and a relay, and the alarm system is composed of a music integrated block and a miniature loudspeaker. The writing pen can distinguish the intensity of the illumination light ray, when the intensity of the illumination light ray is lower than the illuminance, the writing pen for preventing shortsightedness can emit the alarm to effectively prevent eye strain and shortsightedness caused by that people write under the lower illuminance.
Description
The utility model relates to a kind of novel lettering pen, and the function of its existing lettering pen can be discerned the strong and weak of illuminating ray again and the not enough arm's length standard of illuminance is given a warning, and avoids the damage student eyesight that writes under weak excessively light.
Illuminance is a main cause that causes students in middle and primary schools' myopia a little less than too when writing.In order to protect students in middle and primary schools' eyesight, at first to guarantee under normal illuminance, to write.But generally all only judge illuminance by rule of thumb, lack a kind of simple and easy to do scientific method and help to judge, cause many students in middle and primary schools light when writing to get myopia a little less than too.
Be vision protection, utility model patent 88202531.7 proposes one increases the lettering pen way of local light illumination on every side.But owing to lack differentiation and alert capability to illuminance, this lettering pen only improve one illuminance and can not guarantee under normal illuminance, writing when writing.
The purpose of this utility model is the lettering pen that a kind of novel pre-myopia prevention will be provided, and whether the illuminance that it can help students in middle and primary schools to differentiate easily and write reaches normally, and illuminance is below the normal gives a warning so that in time correct.
The purpose of this utility model is achieved in that at lettering pen head outer surface photo resistance is housed, photo resistance links to each other with miniature potentiometer in being contained in penholder, be parallel with the power switch circuit that integrated package and relay are formed on the potentiometer, be connected with the warning device of music-integrating block and miniature composition behind the relay.Connect power switch when writing, the resistance value of the photo resistance of lettering pen head and light power are proportional, detect illuminance with it, and control system just made relay connect when illuminance was below the normal, and warning system just gives a warning.
The lettering pen of this novel pre-myopia prevention only need increase several electronic components on common lettering pen, simple in structure, cost is low, can report to the police by automatic light measuring again.And the photo resistance of lettering pen head is moved with lettering pen, can photometry whenever and wherever possible report to the police in the process of writing, and can guarantee effectively all the time that people write under normal illuminance, reach the purpose of vision protection.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is a basic circuit diagram of the present utility model.
With reference to Fig. 1, detect the light power photo resistance (1), be contained in the outer surface of lettering pen head, miniature potentiometer (2), integrated package (3), midget relay (4), music-integrating block (5), miniature (6) and compact battery (7) are contained in the lettering pen, and power switch (8) is contained in lettering pen top.
With reference to Fig. 2, turn on the power switch (8) when writing, when illuminating ray is too weak, the resistance of photo resistance (1) diminishes, the feasible control system connection that is used as the integrated package (3) and midget relay (4) composition of power switch, so the warning system that music-integrating block (5) and miniature (6) are formed just gives a warning, and impels people to adjust writing light illumination.When writing light illumination reaches just often, the resistance value of photo resistance keeps certain numerical value, makes control system not connect, miniature just noiseless, lettering pen just undisturbedly keeps normally writing.
Claims (4)
1, a kind of can identification and the strong and weak lettering pen of myopia prevention in advance of display lighting light, this device has a penholder (9), one pen core (10) is arranged within it, it is characterized in that lettering pen head outer surface is equipped with photo resistance (1), the photo resistance miniature potentiometer (2) interior with being contained in penholder links to each other, be parallel with the power switch circuit that integrated package (3) and relay (4) are formed on the potentiometer, be connected with the warning device that music-integrating block (5) and miniature (6) are formed behind the relay.
2, the lettering pen of pre-myopia prevention according to claim 1 is characterized in that lettering pen head outer surface posts the photo resistance (1) of a taper seat shape, and photo resistance one end and baby battery (7) link, and the other end and potentiometer (2) link.
3, the lettering pen of pre-myopia prevention according to claim 1, in parallel with potentiometer (2) again after it is characterized in that integrated package (3) and relay (4) being connected.
4, the lettering pen of pre-myopia prevention according to claim 1, in parallel with baby battery (7) again after it is characterized in that music-integrating block (5) and Microspeaker (6) being connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219562 CN2159880Y (en) | 1993-07-24 | 1993-07-24 | Writing pen for preventing shortsightedness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219562 CN2159880Y (en) | 1993-07-24 | 1993-07-24 | Writing pen for preventing shortsightedness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2159880Y true CN2159880Y (en) | 1994-03-30 |
Family
ID=33798918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219562 Expired - Fee Related CN2159880Y (en) | 1993-07-24 | 1993-07-24 | Writing pen for preventing shortsightedness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2159880Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070887A (en) * | 2013-03-29 | 2014-10-01 | 傅永燕 | Myopia-preventing mechanical pencil |
-
1993
- 1993-07-24 CN CN 93219562 patent/CN2159880Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070887A (en) * | 2013-03-29 | 2014-10-01 | 傅永燕 | Myopia-preventing mechanical pencil |
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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 |