CN204045095U - A kind of continuously adjustabe list double slit device - Google Patents
A kind of continuously adjustabe list double slit device Download PDFInfo
- Publication number
- CN204045095U CN204045095U CN201420547136.XU CN201420547136U CN204045095U CN 204045095 U CN204045095 U CN 204045095U CN 201420547136 U CN201420547136 U CN 201420547136U CN 204045095 U CN204045095 U CN 204045095U
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- China
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- light hole
- double slit
- dish
- seam
- blanking disc
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Abstract
The utility model discloses a kind of continuously adjustabe list double slit device, comprise support, single double slit dish and blanking disc; Pedestal upper end fixes a horizontal rotating shaft, and the center of single double slit dish and blanking disc is set in successively in rotating shaft and can rotates around the axis respectively; Single double slit dish is respectively equipped with along same circumference the circular arc double slit that the wide circular arc list increased progressively continuously of seam stitches, spacing increases progressively continuously; On blanking disc, along same circumference, etc. angular separation be provided with the first identical light hole of diameter, the second light hole, the 3rd light hole and the 4th light hole, wherein the second light hole, the 3rd light hole, the 4th light hole are embedded with respectively the optical filter of different colours.The utility model achieves the continuously adjustabe singly stitching width, double slit spacing, facilitates the observation of experimental phenomena and compares, and is conducive to deepening the understanding to diffraction, interference and rule.
Description
Technical field
The utility model relates to a kind of multi-functional optical experimental device, is specially a kind of continuously adjustabe list double slit device.
Background technology
In single slit diffraction and Dual-slit Interference Experiment, need to use single seam and double slit.The difference that single seam seam is wide, the difference of double slit spacing, the difference of lambda1-wavelength, all directly can affect single slit diffraction, the width of two-slit interference striped and distribution.During experiment, generally by changing the list seam of different in width, the double slit of different spacing, the light source of different wave length observe these and change, this replacing both spended times, are not easy to again intuitively comparing between experimental phenomena.Also it is wide that the adjustable slit that Available experimental room is conventional changes seam, if but this slit regulates improper, and very easily cause the edge of a knife of slit collide and damage.Above problem is made troubles to the observation of single slit diffraction under different condition and Dual-slit Interference Experiment phenomenon and comparing.
Summary of the invention
The purpose of this utility model is to invent that a kind of single seam seam is wide, double slit spacing can continuously adjustable single double slit device, be convenient to demonstrate and more single diffraction stitched under wide, different double slit spacing, different lambda1-wavelength, interference fringe change, deepen the understanding to single slit diffraction, Dual-slit Interference Experiment rule.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions:
A kind of continuously adjustabe list double slit device, comprises support, single double slit dish and blanking disc; Single double slit dish and blanking disc are circle, and diameter is identical; Pedestal upper end fixes a horizontal rotating shaft, and the center of single double slit dish and blanking disc is set in successively in rotating shaft and can rotates around the axis respectively; On described single double slit dish, be respectively equipped with the wide circular arc list seam increased progressively continuously of seam along same circumference, and the circular arc double slit that spacing increases progressively continuously; On described blanking disc, along same circumference, etc. angular separation be provided with the first light hole, the second light hole, the 3rd light hole and the 4th light hole, the diameter of the first light hole, the second light hole, the 3rd light hole, the 4th light hole is identical, wherein the second light hole, the 3rd light hole, the 4th light hole is embedded with respectively the optical filter of different colours; Described first light hole, the second light hole, the 3rd light hole, the 4th light hole center, to the distance in the blanking disc center of circle, equal single seam, double slit center line to the distance in single double slit dish center of circle.
It is 0.02mm that described list stitches the most wide place of crack, and the wide place of maximum seam is 1.20mm.
Two seam width of described double slit are identical, and be 0.02mm-0.20mm, double slit spacing is minimum is 0.10mm, is 1.00mm to the maximum.
Optical filter color on described second light hole, the 3rd light hole, the 4th light hole is respectively red, green, blue.
Owing to adopting above-mentioned design, the utility model can produce following beneficial effect:
When observing single slit diffraction phenomenon, the first light hole on blanking disc is irradiated with monochromatic collimated beam, rotate single double slit dish, after making a part for single seam go to the first light hole, screen a long way off can be observed the pattern of single slit diffraction, the single double slit dish of slow rotation can continuously change the width of single seam, now can be observed diffraction pattern with stitching wide respective change.
When observing two-slit interference phenomenon, the first light hole on blanking disc is irradiated with monochromatic collimated beam, rotate single double slit dish, after making a part for double slit go to the first light hole, screen a long way off can be observed the pattern of two-slit interference, the single double slit dish of slow rotation can continuously change the spacing of double slit, now can be observed the respective change of interference pattern with double slit spacing.
Incident light be white light time, rotate blanking disc, make incident ray respectively by directive list seam or double slit after the second light hole, the 3rd light hole, the 4th light hole, observable and compare diffraction, interference fringe with the change of lambda1-wavelength.
The utility model achieves the continuously adjustabe singly stitching width, double slit spacing, facilitates the observation of experimental phenomena and compares, the setting of light hole upper filter, is conducive to the diffraction under observation different light rays, interference pattern change.The utility model can be used for optical demonstration experiment, is conducive to deepening the understanding to diffraction, interference and rule.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is formation schematic diagram of the present utility model.
Fig. 2 is the structural representation of single double slit dish.
Fig. 3 is the structural representation of blanking disc.
In figure: 1. support, 2. single double slit dish, 3. blanking disc, 11. rotating shafts, 21. single seams, 22. double slits, 31. first light holes, 32. second light holes, 33. the 3rd light holes, 34. the 4th light holes.
Embodiment
As shown in Figure 1, the utility model comprises support 1, single double slit dish 2 and blanking disc 3; Single double slit dish 2 is circle with blanking disc 3, and diameter is identical; A horizontal rotating shaft 11 is fixed in support 1 upper end, and the center of single double slit dish 2 and blanking disc 3 is set in rotating shaft 11 successively, can distinguish and 11 rotate around the shaft.
As shown in Figure 2, on single double slit dish 2, be respectively equipped with the wide circular arc list seam 21 increased progressively continuously of seam along same circumference, and the circular arc double slit 22 that spacing increases progressively continuously.
As shown in Figure 3, on blanking disc 3, along same circumference, etc. angular separation be provided with the first light hole 31, second light hole 32, the 3rd light hole 33 and the 4th light hole 34, the diameter of the first light hole 31, second light hole 32, the 3rd light hole 33, the 4th light hole 34 is identical, wherein the second light hole 32, the 3rd light hole 33, the 4th light hole 34 is embedded with respectively the optical filter of different colours; First light hole 31, second light hole 32, the 3rd light hole 33, the 4th light hole 34 center, to the distance in blanking disc 3 center of circle, equal single seam 21, double slit 22 center line to the distance in single double slit dish 2 center of circle.
The most wide place of crack of single seam 21 is 0.02mm, and the wide place of maximum seam is 1.20mm.
Two seam width of double slit 22 are identical, and be 0.02mm-0.20mm, double slit spacing is minimum is 0.10mm, is 1.00mm to the maximum.
Optical filter color on second light hole 32, the 3rd light hole 33, the 4th light hole 34 is respectively red, green, blue.
Claims (4)
1. a continuously adjustabe list double slit device, comprises support (1), single double slit dish (2) and blanking disc (3); Single double slit dish (2) is circle with blanking disc (3), and diameter is identical; A horizontal rotating shaft (11) is fixed in support (1) upper end, and the center of single double slit dish (2) and blanking disc (3) is set in rotating shaft (11) successively can distinguish around the shaft (11) rotation; It is characterized in that: on described single double slit dish (2), be respectively equipped with wide circular arc list seam (21) increased progressively continuously of seam along same circumference, and the circular arc double slit (22) that spacing increases progressively continuously; On described blanking disc (3), along same circumference, etc. angular separation be provided with the first light hole (31), the second light hole (32), the 3rd light hole (33) and the 4th light hole (34), the diameter of the first light hole (31), the second light hole (32), the 3rd light hole (33), the 4th light hole (34) is identical, wherein the second light hole (32), the 3rd light hole (33), the 4th light hole (34) is embedded with respectively the optical filter of different colours; Described first light hole (31), the second light hole (32), the 3rd light hole (33), the 4th light hole (34) center, to the distance in blanking disc (3) center of circle, equal single seam (21), double slit (22) center line to the distance in single double slit dish (2) center of circle.
2. a kind of continuously adjustabe list double slit device according to claim 1, is characterized in that: the most wide place of crack of described single seam (21) is 0.02mm, and the wide place of maximum seam is 1.20mm.
3. a kind of continuously adjustabe list double slit device according to claim 1, is characterized in that: two seam width of described double slit (22) are identical, and be 0.02mm-0.20mm, double slit spacing is minimum is 0.10mm, is 1.00mm to the maximum.
4. a kind of continuously adjustabe list double slit device according to claim 1, is characterized in that: the optical filter color on described second light hole (32), the 3rd light hole (33), the 4th light hole (34) is respectively red, green, blue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547136.XU CN204045095U (en) | 2014-09-22 | 2014-09-22 | A kind of continuously adjustabe list double slit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547136.XU CN204045095U (en) | 2014-09-22 | 2014-09-22 | A kind of continuously adjustabe list double slit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045095U true CN204045095U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420547136.XU Expired - Fee Related CN204045095U (en) | 2014-09-22 | 2014-09-22 | A kind of continuously adjustabe list double slit device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204045095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111768685A (en) * | 2020-07-30 | 2020-10-13 | 马鞍山学院 | Diffraction experimental device and experimental method thereof |
-
2014
- 2014-09-22 CN CN201420547136.XU patent/CN204045095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111768685A (en) * | 2020-07-30 | 2020-10-13 | 马鞍山学院 | Diffraction experimental device and experimental method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |