CN201203976Y - Experimental device for laser pen interference and diffraction - Google Patents
Experimental device for laser pen interference and diffraction Download PDFInfo
- Publication number
- CN201203976Y CN201203976Y CNU2008200591444U CN200820059144U CN201203976Y CN 201203976 Y CN201203976 Y CN 201203976Y CN U2008200591444 U CNU2008200591444 U CN U2008200591444U CN 200820059144 U CN200820059144 U CN 200820059144U CN 201203976 Y CN201203976 Y CN 201203976Y
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- CN
- China
- Prior art keywords
- laser pen
- slit
- interference
- tool rack
- magnifier
- 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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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a laser pen experiment device for interference and diffraction, comprising an optical tool rack, a substrate, a laser pen, a double-slit or a single-slit, a magnifier, a light shield and a supporting rod. A screwed pore is disposed on the central portion of the optical tool rack, with a screwed rod on upper portion of the substrate threaded therein, thus fixing the optical tool rack on the substrate. The laser pen is clamped by a clip, lower terminal of the supporting rod welded with the clip is inserted into a movable seat of the optical tool rack and threadingly fixed thereon. Supporting rods are provided on the double-slit, the single-slit, the magnifier and the light shield, with lower terminal thereof inserted into the movable seat of the optical tool rack and threadingly fixed thereon. The utility model uses the laser pen to substitute the He-Ne laser to lower the cost, uses battery to substitute the DC electric source, without location limitation when carrying out experiment, having advantages of low cost and simple operation.
Description
Technical field:
The utility model relates to a kind of physics teaching demonstration teaching aid, relates in particular to a kind of laser pen interference, diffraction experimental device.
Background technology:
In physics teaching in secondary school, interference of light, diffraction be the focal points content be again the teaching difficulty content.Existing teaching laser interference diffractometer all is to adopt helium-neon laser to experimentize as light source, not only costs an arm and a leg, and can not carry out the striped that two kinds of color of light produce and compare, and can not satisfy the requirement of imparting knowledge to students fully.
Summary of the invention:
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of cheap and experimental provision that can compare the striped that two color light produces.
Goal of the invention of the present utility model is achieved through the following technical solutions:
A kind of laser pen interference, diffraction experimental device comprise light tool support, base, laser pen, double slit or single seam, magnifier, optical screen and pole compositions.Wherein, the central part of light tool support has the hole of a screw thread, in the screw rod on precession base top, light tool support is fixed on the base; Laser pen is clamped by clip, and the pole lower end that welds together with clip is inserted in the subsidiary movable bearing support of light tool support and by screw and fixed; Double slit, single seam, magnifier and optical screen be all subsidiary to be had pole, their lower end all to be inserted in the subsidiary movable bearing support of light tool support and by screw to fix.
Operation steps of the present invention is:
1,, from left to right laser pen, double slit or single seam, magnifier and optical screen are inserted in the bearing and with screw successively then and fix earlier with in the light tool support precession base.
2, adjust laser pen, double slit or single seam, magnifier and optical screen, make their centers point-blank.
3, open laser pen, make hot spot impinge upon double slit or singly sew on, regulate the position of magnifier, clearly shine on the optical screen up to the interference or the diffraction fringe that produce.
The utility model replaces helium-neon laser to reduce cost with laser pen, and adopts 6 volts of dry cells to replace direct supply, not limited by the place, has cheap, simple operation and other advantages.Simultaneously, this experimental provision adopts red and green two laser pens, can be respectively or make the interference and the diffraction fringe of ruddiness and green glow simultaneously, can allow the difference of student's ratio than their width.
Description of drawings
Accompanying drawing is a kind of laser pen interference of the utility model, diffraction experimental device structural representation.
The number in the figure explanation
1---base 2---support 3---laser pen 4---double slit or single seam
5---magnifier 6---optical screen 7---poles
Embodiment
How further specify the utility model below in conjunction with accompanying drawing realizes:
Embodiment
1) connects as figure.
2) laser pen is red, green two kinds of semiconductor laser pens.
3) support and base are the long aluminium alloy one-shot forming of 1200mm.
4) magnifier adopts lens.
Claims (1)
1, a kind of laser pen interference, diffraction experimental device, comprise light tool support, base, laser pen, double slit or single seam, magnifier, optical screen and pole compositions, it is characterized in that: the central part of described smooth tool support has the hole of a screw thread, in the screw rod on precession base top, light tool support is fixed on the base; Laser pen is clamped by clip, and the pole lower end that welds together with clip is inserted in the subsidiary movable bearing support of light tool support and by screw and fixed; Double slit, single seam, magnifier and optical screen be all subsidiary to be had pole, their lower end all to be inserted in the subsidiary movable bearing support of light tool support and by screw to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200591444U CN201203976Y (en) | 2008-05-30 | 2008-05-30 | Experimental device for laser pen interference and diffraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200591444U CN201203976Y (en) | 2008-05-30 | 2008-05-30 | Experimental device for laser pen interference and diffraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203976Y true CN201203976Y (en) | 2009-03-04 |
Family
ID=40426288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200591444U Expired - Fee Related CN201203976Y (en) | 2008-05-30 | 2008-05-30 | Experimental device for laser pen interference and diffraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203976Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440804A (en) * | 2013-08-07 | 2013-12-11 | 天津城建大学 | Handheld dynamic light wave diffraction demonstration instrument |
| CN103680275A (en) * | 2013-12-27 | 2014-03-26 | 齐齐哈尔大学 | Variable-angle single slit diffraction experiment instrument |
| CN105679163A (en) * | 2016-04-25 | 2016-06-15 | 王星竹 | Device for demonstrating light diffraction |
-
2008
- 2008-05-30 CN CNU2008200591444U patent/CN201203976Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440804A (en) * | 2013-08-07 | 2013-12-11 | 天津城建大学 | Handheld dynamic light wave diffraction demonstration instrument |
| CN103440804B (en) * | 2013-08-07 | 2015-05-13 | 天津城建大学 | Handheld dynamic light wave diffraction demonstration instrument |
| CN103680275A (en) * | 2013-12-27 | 2014-03-26 | 齐齐哈尔大学 | Variable-angle single slit diffraction experiment instrument |
| CN103680275B (en) * | 2013-12-27 | 2016-07-06 | 齐齐哈尔大学 | A kind of diffraction experiment by narrow opening instrument of varied angle |
| CN105679163A (en) * | 2016-04-25 | 2016-06-15 | 王星竹 | Device for demonstrating light diffraction |
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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: 20090304 |