CN201247544Y - Laser filamentary demonstration light source - Google Patents
Laser filamentary demonstration light source Download PDFInfo
- Publication number
- CN201247544Y CN201247544Y CNU2008201048332U CN200820104833U CN201247544Y CN 201247544 Y CN201247544 Y CN 201247544Y CN U2008201048332 U CNU2008201048332 U CN U2008201048332U CN 200820104833 U CN200820104833 U CN 200820104833U CN 201247544 Y CN201247544 Y CN 201247544Y
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- CN
- China
- Prior art keywords
- semiconductor laser
- laser device
- switch
- teaching aid
- cylindricality
- 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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Abstract
The utility model relates to a teaching aid for geometrical optical demonstration experiments. A cylindrical optical refracting element, a semiconductor laser device, a resistor, a switch, batteries and strong magnets are respectively fixed in special positions in a square plastic box, the semiconductor laser device, the resistor, the switch and the batteries are sequentially and electrically connected in series, and laser output by the semiconductor laser device vertically irradiates on the cylindrical optical refracting element to form fan-shaped beams which are projected on the plane to form linear light paths due to the structure. The structure has magnetic absorption, can freely move and can make various geometrical optical demonstration experiments on a blackboard.
Description
Affiliated technical field
The utility model is a kind of geometrical optics lecture experiment teaching aid, does lecture experiment for the teacher and uses, and is used to explore the propagation law of light.
Background technology
Light is invisible in the spatial transmission light path, and for the ocular demonstration light path, people have thought thousand and one way, such as using smog, tank ..., effect is all undesirable." laser wire demonstration light source " thoroughly solves the puzzlement of conventional light path demonstration.Since volume small and exquisite (only 5 * 4 * 1cm), can be adsorbed on the blackboard, if other optical element (as lens, prism, level crossing) also is adsorbed onto on the blackboard, just can realizes Experiments of Optics are moved on the blackboard and do!
Summary of the invention
In order to allow light path clearly, show easily, the utility model adopts visible light semiconductor laser spare, laser is through special light refraction element deviation, form the fan-shaped light beam, the fan-shaped light beam projects on the blackboard, form eye-catching wire light path, light path can be not interrupted because of the blackboard surface irregularity.
The technical scheme that its technical matters that solves the utility model adopts is: in a light and handy square plastic box, fixing semiconductor laser device, the front end of semiconductor laser device, fix the optical element of a cylindricality, this element can make the laser deviation form the fan-shaped light beam, the fan-shaped light beam penetrates from square hole, projects on the blackboard, forms eye-catching light path.Semiconductor laser device is by the 3V powered battery, resistance current limliting, switch control.A sheet strong magnets is fixed in bottom in the square plastic box, and teaching aid firmly is adsorbed on the magnet board.
The beneficial effects of the utility model are, on blackboard, form eye-catching light path, light path can be not influenced because of the blackboard surface irregularity, light path can stand the deviation and the reflection of other optical element, as the deviation and the reflection of convex lens, concavees lens, prism, level crossing, the needs of meeting geometric optics teaching.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the utility model structural map.
Among the figure: 1. cylindricality light refraction element, 2. semiconductor laser device, 3. resistance, 4. switch, 5. battery, 6. plastic casing, 7. strong magnets, 8,9. output laser.
Embodiment
In Fig. 1, semiconductor laser device (2), resistance (3), switch (4), battery (5) series connection, battery (5) adopts No. 7 batteries of two joints, the about 3V of total voltage, about 280 Ω of the value of resistance (3), this value is for reference value, actually should make corresponding accent according to the parameter of semiconductor laser device (2), and comprehensive brightness, electric current, Laser Devices life-span three factors are regulated.
In embodiment illustrated in fig. 2, cylindricality light refraction element (1), semiconductor laser device (2), resistance (3), switch (4), battery (5), strong magnets (7) is pressed stationkeeping shown in the figure on plastic casing (6), and press circuit diagram 1 connection line, the direction of fine setting semiconductor laser device (2) output laser makes its vertical irradiation to cylindricality light refraction element (1), and reflecting the projecting light path that forms thin, long, clear through cylindricality light refraction element (1) is optimum efficiency.
Claims (2)
1. geometrical optics lecture experiment teaching aid, in the square plastic box, cylindricality light refraction element, semiconductor laser device, resistance, switch, battery, strong magnets, be fixed on the plastic casing by ad-hoc location, semiconductor laser device, resistance, switch, battery, the order electricity is connected in series, it is characterized in that: the laser vertical irradiation cylindricality light refraction element of semiconductor laser device output, teaching aid can be adsorbed on the magnet board and moves freely.
2. geometrical optics lecture experiment teaching aid according to claim 1 is characterized in that: the laser radiation of semiconductor laser device output forms the fan-shaped light beam to cylindricality light refraction element, and the fan-shaped light beam projects and forms the wire light path on the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201048332U CN201247544Y (en) | 2008-04-12 | 2008-04-12 | Laser filamentary demonstration light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201048332U CN201247544Y (en) | 2008-04-12 | 2008-04-12 | Laser filamentary demonstration light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247544Y true CN201247544Y (en) | 2009-05-27 |
Family
ID=40731368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201048332U Expired - Fee Related CN201247544Y (en) | 2008-04-12 | 2008-04-12 | Laser filamentary demonstration light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247544Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402889A (en) * | 2011-04-24 | 2012-04-04 | 张津 | Semiconductor green laser beam expansion device |
| CN102915661A (en) * | 2012-08-11 | 2013-02-06 | 曾克夫 | Movable type laser reflection, laser refraction and lens imaging demonstration combined device and using method thereof |
-
2008
- 2008-04-12 CN CNU2008201048332U patent/CN201247544Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402889A (en) * | 2011-04-24 | 2012-04-04 | 张津 | Semiconductor green laser beam expansion device |
| CN102915661A (en) * | 2012-08-11 | 2013-02-06 | 曾克夫 | Movable type laser reflection, laser refraction and lens imaging demonstration combined device and using method thereof |
| CN102915661B (en) * | 2012-08-11 | 2015-05-27 | 曾克夫 | Movable type laser reflection, laser refraction and lens imaging demonstration combined device and using method thereof |
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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: 20090527 Termination date: 20100412 |