CN201444358U - Teaching ferule - Google Patents
Teaching ferule Download PDFInfo
- Publication number
- CN201444358U CN201444358U CN2009200291374U CN200920029137U CN201444358U CN 201444358 U CN201444358 U CN 201444358U CN 2009200291374 U CN2009200291374 U CN 2009200291374U CN 200920029137 U CN200920029137 U CN 200920029137U CN 201444358 U CN201444358 U CN 201444358U
- Authority
- CN
- China
- Prior art keywords
- lamp holder
- rod
- teaching
- ferule
- battery
- 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
Abstract
The utility model discloses a teaching ferule which comprises a telescopic rod body (1), wherein lamp caps (2) are arranged at both the front end and the back end of the rod body (1); the lamp caps (2) are connected with a battery (3); and a convex lens (4) and a concave lens (5) are respectively arranged at the external ends of the lamp caps (2). The teaching ferule is convenient to operate and can indicate accurately and clearly.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly a kind of teacher's pointer with light indication.
Background technology
The prior art teacher's pointer mostly is the body of rod of structure and function singleness, utilize the termination indicating positions of the body of rod, when far away or brightness was dark when the position of need indications, indicating effect was then unclear clear and definite, and need operating personnel to move around so that near indicating positions inconvenient operation according to indicating positions.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of easy to use, explicit teacher's pointer of indication is provided.
The utility model is achieved in that a kind of teacher's pointer, comprises the telescopic body of rod, and this body of rod front and back ends all is provided with lamp holder, and lamp holder is connected with battery, and the lamp holder outer end is provided with convex lens and concavees lens respectively.
Further improve as the utility model, this lamp holder is a light emitting diode, and this battery is a rechargeable battery, on this body of rod switch is set.
Compared to existing technology, the utility model all is provided with illuminating lamp holder at the two ends of the body of rod, and scioptics are realized optically focused and astigmatism functions, the effect that can play illumination and accurately indicate, when indicating positions is far away, can utilize the light indicating positions, have accurately advantage clearly of easy to operate, indication.
Description of drawings
Accompanying drawing is a sectional structure synoptic diagram of the present utility model.
Among the figure: 1, the body of rod, 2, lamp holder, 3, battery, 4, convex lens, 5, concavees lens, 6, switch, 7, lead.
Embodiment
As shown in the figure, the body of rod 1 is telescopic hollow tubular structure, and the inside of its front and back ends is provided with lamp holder 2, and lamp holder 2 is connected with battery 3 by lead 7, and lamp holder 2 outer ends are provided with convex lens 4 and concavees lens 5 respectively.Lamp holder 2 adopts light emitting diode, and battery 3 adopts rechargeable battery 3, and switch 6 is set on the body of rod 1.The thickness of convex lens 4 and concavees lens 5 and dioptric degree are determined according to the practical application needs.
Use-pattern of the present utility model has three kinds, and the one, use as common teacher's pointer, when bright and clear and short distance indication, get final product indicating positions by the pull body of rod 1; The 2nd, use as light indication teacher's pointer, when indicating positions is partially far away, can utilize the outer end that the lamp holder 2 of convex lens 4 is set, open lamp holder 2, light plays the optically focused effect by convex lens 4, with light bright spot indicating positions; The 3rd, double giving instruction and illuminating effect when the indicating area more maybe needs to indicate the position big, utilizes the outer end that the lamp holder 2 of concavees lens 5 is set, and light plays the astigmatism effect by concavees lens 5, with the aperture indication with illuminate than large tracts of land.
Claims (2)
1. a teacher's pointer comprises the telescopic body of rod (1), it is characterized in that: this body of rod (1) front and back ends all is provided with lamp holder (2), and lamp holder (2) is connected with battery (3), and lamp holder (2) outer end is provided with convex lens (4) and concavees lens (5) respectively.
2. teacher's pointer according to claim 1 is characterized in that: this lamp holder (2) is a light emitting diode, and this battery (3) is chargeable structure, and switch (6) is set on this body of rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200291374U CN201444358U (en) | 2009-07-03 | 2009-07-03 | Teaching ferule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200291374U CN201444358U (en) | 2009-07-03 | 2009-07-03 | Teaching ferule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444358U true CN201444358U (en) | 2010-04-28 |
Family
ID=42549039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200291374U Expired - Fee Related CN201444358U (en) | 2009-07-03 | 2009-07-03 | Teaching ferule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682643A (en) * | 2012-04-21 | 2012-09-19 | 张光裕 | Light changing type pointer |
| CN107153272A (en) * | 2017-01-05 | 2017-09-12 | 徐建俭 | The ultra-fine light beam optically focused white laser pen of flexible type |
-
2009
- 2009-07-03 CN CN2009200291374U patent/CN201444358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682643A (en) * | 2012-04-21 | 2012-09-19 | 张光裕 | Light changing type pointer |
| CN102682643B (en) * | 2012-04-21 | 2014-03-05 | 张光裕 | Light changing type pointer |
| CN107153272A (en) * | 2017-01-05 | 2017-09-12 | 徐建俭 | The ultra-fine light beam optically focused white laser pen of flexible type |
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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: 20100428 Termination date: 20100703 |