CN200969138Y - Apparatus for preventing nearsightedness - Google Patents
Apparatus for preventing nearsightedness Download PDFInfo
- Publication number
- CN200969138Y CN200969138Y CN 200620051931 CN200620051931U CN200969138Y CN 200969138 Y CN200969138 Y CN 200969138Y CN 200620051931 CN200620051931 CN 200620051931 CN 200620051931 U CN200620051931 U CN 200620051931U CN 200969138 Y CN200969138 Y CN 200969138Y
- Authority
- CN
- China
- Prior art keywords
- switch
- battery
- utility
- chip
- myopia prevention
- 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
Links
- 208000001491 myopia Diseases 0.000 title claims abstract description 13
- 230000004379 myopia Effects 0.000 title claims abstract description 12
- 230000002265 prevention Effects 0.000 claims abstract description 12
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 abstract 1
- 229920006255 plastic film Polymers 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
Images
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- Toys (AREA)
Abstract
The utility model pertains to a shortsightedness prevention device which comprises a battery, a push and pull type switch K1, a mercury switch K2, an electronic music integrated package IC and a little speaker which is connected parallel on the integrated package IC; the battery, the switch K1 and K2 and the integrated package IC are connected sequentially to form a loop. All the electronic loop components are arranged in a plastic film box which is the shaped of a question mark. The utility model has the advantages of simple structure and low cost.
Description
Technical field
The utility model belongs to a kind of pre-myopia prevention device.
Background technology
Existing myopia prevention desk lamp has prompting warning effect to reading closely, still, bright and clear, in the time of need not turning on light, pre-myopia prevention circuit is not worked, and does not point out, and does not have the effect of pre-myopia prevention.
Summary of the invention
The purpose of this utility model is to create a kind of the needs to turn on light, in advance the instrument of myopia prevention.
The purpose of this utility model is achieved in that it is mainly by battery, push-pull switch K
1, mercury cut-off K
2, electronic music ic chip, toy trumpet form, toy trumpet is connected in parallel on the ic chip, battery, K switch
1, K
2, ic chip connects and composes a loop successively.Whole electronic loop parts are contained in the thin box of plastics of an outer appearance query.
The utility model has the advantages that: simple in structure, cheap, strong and weak irrelevant with external light source.
Description of drawings
Fig. 1 is the utility model circuit diagram;
Fig. 2 is the utility model outside drawing.
Embodiment
As shown in Figure 1, 2, this pre-myopia prevention device is mainly by by battery, push-pull switch K
1, mercury cut-off K
2, electronic music ic chip, toy trumpet form, toy trumpet is connected in parallel on the ic chip; Battery, K switch
1, K
2, ic chip connects and composes a loop successively.Whole electronic loop parts be contained in an outer appearance query (?) the thin box of plastics in.
When this pre-myopia prevention device uses, connect push-pull switch K
1, hang on the helix, too low if the wearer sees upper margin, from written too near, mercury formula K switch then
2In mercury slug tilt, connect K switch
2, at this moment, circuit constitutes a loop, the toy trumpet sounding, and the prompting reader draws back the reading distance, rectifies posture, with myopia prevention.
Claims (2)
1, a kind of pre-myopia prevention device is characterized in that: it is mainly by battery, push-pull switch K
1, mercury cut-off K
2, electronic music ic chip, toy trumpet form, toy trumpet is connected in parallel on the ic chip; Battery, K switch
1, K
2, ic chip connects and composes a loop successively.
2, pre-myopia prevention device according to claim 1 is characterized in that: whole electronic loop parts are contained in the thin box of plastics of an outer appearance query.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620051931 CN200969138Y (en) | 2006-08-10 | 2006-08-10 | Apparatus for preventing nearsightedness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620051931 CN200969138Y (en) | 2006-08-10 | 2006-08-10 | Apparatus for preventing nearsightedness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200969138Y true CN200969138Y (en) | 2007-10-31 |
Family
ID=38968710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620051931 Expired - Fee Related CN200969138Y (en) | 2006-08-10 | 2006-08-10 | Apparatus for preventing nearsightedness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200969138Y (en) |
-
2006
- 2006-08-10 CN CN 200620051931 patent/CN200969138Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071031 Termination date: 20090910 |