CN200972715Y - Laser pull-rod pointer of regulating large or small of facula - Google Patents
Laser pull-rod pointer of regulating large or small of facula Download PDFInfo
- Publication number
- CN200972715Y CN200972715Y CN 200620099570 CN200620099570U CN200972715Y CN 200972715 Y CN200972715 Y CN 200972715Y CN 200620099570 CN200620099570 CN 200620099570 CN 200620099570 U CN200620099570 U CN 200620099570U CN 200972715 Y CN200972715 Y CN 200972715Y
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- CN
- China
- Prior art keywords
- laser
- pointer
- screw
- pointer body
- utility
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a laser pull-rod pointer, the size of whose facular can be adjusted, which belongs to stationery in daily necessities. The utility model is essentially consisted of a pointer body which can be extended, and a battery box and a control switch are equipped on the lower part of the pointer body, batteries are arranged in the battery box, a laser transmitter to which are connected the batteries through leads is provided on the upper part of the pointer body, a screw cap inside which is provided a concave mirror and a convex mirror is provided on the front end of the laser transmitter, and a fixation screw is provided at one side of the screw cap. The device applies the pull-rod pointer body that is easy to take and convenient to use; the laser transmitter coordinates with the concave mirror and the convex mirror, which makes the size of the specula can be adjusted so that the specula can form a highlighting point or turn the color of one area to another one on the projection screen, and this improves teaching effect and makes the teaching for teachers and the study for students more convenient.
Description
Technical field
The utility model relates to a kind of stationery, particularly a kind of pull bar teacher's pointer that has laser deixis and laser facula adjustable size.
Background technology
Traditional teacher's pointer is visual in image, but then can't put for projector display screen position far away; Simple generating laser can point to far, penetrates but always can't see in teacher's hand from which direction, and the speaker often frequently rocks laser pen and arouses attention, and that often causes participant's eyes does not accommodate fatigue.These both combinations,
Summary of the invention
The purpose of this utility model provides a kind of direction-pointing function that had both had teacher's pointer, can indicate by laser again, and the laser pull bar teacher's pointer that can regulate of laser facula size.
The purpose of this utility model is achieved in that the laser pull bar teacher's pointer that a kind of spot size is adjustable, comprise and to stretch the whip body 5 that draws, whip body 5 bottoms are provided with battery case 1 and gauge tap 3, battery 2 is housed in the battery case, whip body 5 tops are provided with generating laser 6, and battery 2 is connected with generating laser 6 by lead 4, and generating laser 6 front ends are provided with screw-cap 7, be provided with concavees lens 8 and convex lens 9 in the screw-cap 7, a side of screw-cap 7 also is provided with trip bolt 10.
The laser pull bar teacher's pointer that spot size provided by the utility model is adjustable adopts rod-pulling type whip body, carries with easy to use; Generating laser matches with convex lens and concavees lens, and the spot size that sends can be regulated, and can form a bright spot and also can make a certain zone become another kind of color on projection screen, improves teaching efficiency, makes things convenient for teacher to impart knowledge to students and student's study.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation after the utility model two lens amplify.
Embodiment
The utility model adopts following structure: the laser pull bar teacher's pointer that a kind of spot size is adjustable, comprise and to stretch the whip body 5 that draws, whip body 5 bottoms are provided with battery case 1 and gauge tap 3, battery 2 is housed in the battery case, whip body 5 tops are provided with generating laser 6, and battery 2 is connected with generating laser 6 by lead 4, and generating laser 6 front ends are provided with screw-cap 7, be provided with concavees lens 8 and convex lens 9 in the screw-cap 7, a side of screw-cap 7 also is provided with trip bolt 10.
When this device uses, draw back whip body 5 and promptly can be used as common teacher's pointer use, when carrying out remote indication as needs, open gauge tap 3, battery 2 gives generating laser 6 power supplies by lead 4, makes generating laser 6 send laser, as regulating to the size of hot spot, rotatable spiral 7 is adjusted the spacing between convex lens 9 and the concavees lens 8, to change the size of hot spot.When spot size is suitable, two lens can be fixed by trip bolt 10.
Claims (1)
1, the adjustable laser pull bar teacher's pointer of a kind of spot size, comprise and to stretch the whip body (5) that draws, whip body (5) bottom is provided with battery case (1) and gauge tap (3), battery (2) is housed in the battery case, it is characterized in that: whip body (5) top is provided with generating laser (6), battery (2) is connected with generating laser (6) by lead (4), generating laser (6) front end is provided with screw-cap (7), be provided with concavees lens (8) and convex lens (9) in the screw-cap (7), a side of screw-cap (7) also is provided with trip bolt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099570 CN200972715Y (en) | 2006-10-20 | 2006-10-20 | Laser pull-rod pointer of regulating large or small of facula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099570 CN200972715Y (en) | 2006-10-20 | 2006-10-20 | Laser pull-rod pointer of regulating large or small of facula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972715Y true CN200972715Y (en) | 2007-11-07 |
Family
ID=38883971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099570 Expired - Fee Related CN200972715Y (en) | 2006-10-20 | 2006-10-20 | Laser pull-rod pointer of regulating large or small of facula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972715Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080898A (en) * | 2017-05-18 | 2017-08-22 | 北京宏强富瑞技术有限公司 | Indexing laser facula adjusting means |
| CN108831245A (en) * | 2018-06-27 | 2018-11-16 | 张鹏 | A kind of adjustable teaching indicator of luminous point |
| CN108954227A (en) * | 2018-08-20 | 2018-12-07 | 上海彩丞新材料科技有限公司 | A kind of lens subassembly of changeable spot size |
-
2006
- 2006-10-20 CN CN 200620099570 patent/CN200972715Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080898A (en) * | 2017-05-18 | 2017-08-22 | 北京宏强富瑞技术有限公司 | Indexing laser facula adjusting means |
| CN108831245A (en) * | 2018-06-27 | 2018-11-16 | 张鹏 | A kind of adjustable teaching indicator of luminous point |
| CN108954227A (en) * | 2018-08-20 | 2018-12-07 | 上海彩丞新材料科技有限公司 | A kind of lens subassembly of changeable spot size |
| WO2020037950A1 (en) * | 2018-08-20 | 2020-02-27 | 上海彩丞新材料科技有限公司 | Lens assembly capable of changing size of light spot |
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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 |