CN203812468U - Total reflection demonstration instrument - Google Patents
Total reflection demonstration instrument Download PDFInfo
- Publication number
- CN203812468U CN203812468U CN201420105587.8U CN201420105587U CN203812468U CN 203812468 U CN203812468 U CN 203812468U CN 201420105587 U CN201420105587 U CN 201420105587U CN 203812468 U CN203812468 U CN 203812468U
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- China
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- water container
- transparent water
- total reflection
- circular hole
- demonstration
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Abstract
The utility model discloses a total reflection demonstration instrument. A light source, a transparent water container, a reservoir and a display screen are successively arranged from front to back; the transparent water container, the reservoir and the display screen are fixed on a pedestal; the transparent water container is square column shaped; an upper end of the transparent water container is provided with a matched cover; one side, facing to the reservoir, of the transparent water container is provided with a circular hole, and water in the transparent water container enters into the reservoir through the circular hole in an arc line manner; and 1/3 to 4/5 of the transparent water container is equipped with water. The purpose of the utility model is to provide a total reflection demonstration device which is simple in structure, easy to operate and vivid in demonstration; students do experiments by themselves and observe demonstration experiments of teachers, the students understand total reflection phenomenon of light and summarize conditions of total reflection, and observing and summarizing abilities of the students are trained; and curiosity of the students is caused by observing the demonstration experiments, and consciousness of the students to design and improve the experiments by themselves is trained.
Description
Technical field
The utility model belongs to teaching aid field, is specifically related to a kind of total reflection demonstrator.
Background technology
In physics teaching in secondary school, student lacks practical experience, for the total reflection phenomenon lack of perceptual knowledge of light, in order to make student know that what is optically thinner medium, what is the relatively abstract concept such as optically denser medium, especially understand the concept of total reflection and the critical angle of light, total reflection can be judged whether to occur, and relevant problem can be solved, need to be by there being pertinent instruments to carry out vivid demonstration.In the updating of instruments used for education, Chinese patent 200820164494.7 reflection of lights, refraction and total reflection demonstration device, a kind of equipment of total reflection demonstration of light is disclosed, but this equipment need to settle level crossing to carry out reflection source, as everyone knows, level crossing need to be handled with care, in middle school student, demonstrates, and as easy as rolling off a logly receives damage; And light is not had to due display screen in the demonstration of total reflection and not total reflection, demonstration effect is vivid not.
The total reflection demonstrating device of a kind of light of the present utility model, it is a kind of total reflection demonstrating device of the light for physics experiment teaching, do it yourself to test and observe teacher's lecture experiment by student, understand the total reflection phenomenon of light, summarize the condition of generation total reflection, cultivate student's observation, abstract ability; Cause student's curiosity by observing lecture experiment, cultivate the consciousness of student oneself design and improvement experiment.And this device is simple, clear, easily operation.
Summary of the invention
For improving the quality of teaching, make teaching equipment reduce the dependence to environment, the total reflection phenomenon of more vivid demonstration light, the purpose of this utility model is to provide a kind of simple to operate, independent operation is strong, the disappearance by laser on white optical screen and occur effectively demonstrating the demonstrator of total reflection phenomenon.
For realizing above object, the technical solution of the utility model is:
Total reflection demonstrator, wherein: light source, transparent water container, cistern and display screen are arranged in order from front to back, described transparent water container, cistern and display screen are fixed on pedestal, described transparent water container is square column type, transparent water container upper end is provided with the lid that matches, transparent water vessel faces is provided with circular hole to a side of cistern, and the water in transparent water container enters cistern by circular hole after lid is taken away; In transparent water container, be loaded with the water of 1/3-4/5.
The Circularhole diameter of transparent water container one side is 3-8mm, and circular hole is 5-15cm apart from the distance of container bottoms; Circular hole is 8-16cm apart from the distance of the water surface.
Described transparent water container is square glass bottle, and whether square glass bottle is provided with bottle stopper and controls the water of circular hole and flow out.
Described light source is laser pen, and pedestal is plank, and display screen is white optical screen.
The beneficial effects of the utility model are:
1, whether the utility model regulates the water of side circular hole to flow out by the lid of transparent water container, simple to operation, and in operation than easy with circular hole plug, in operation, hand can not drenched.
2, light is vertically injected transparent water container by employing light source of the present utility model, is presented on display screen by transparent water container and water, and all parts are simple and easy to get, and not fragile, very practical at classroom teaching.
3, pedestal of the present utility model is provided with cistern, and in the time opening transparent water container lid, water flows into cistern from aperture camber line, has kept clean Demonstration table and demo environment.
4,, in the utility model, except light source, miscellaneous part is fixed on pedestal, is convenient to take out and demonstrate at any time.
5, on the utility model, be mounted with display screen, increased the vivid property of demonstration, promoted the understanding of student to total reflection phenomenon.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
1, square glass bottle; 2, bottle stopper; 3, water; 4, white optical screen; 5, cistern; 6, pedestal; 7, laser pen; 8, circular hole.
Embodiment
By following examples, the utility model is further elaborated.
Embodiment 1, with reference to accompanying drawing 1, total reflection demonstrator, wherein laser pen 7, square glass bottle 1, cistern 5 and white optical screen 4 are arranged in order from front to back, square glass bottle 1, cistern 5 and white optical screen 4 are fixed on pedestal 6, square glass bottle 1 is provided with circular hole 8 towards a side of cistern 5, circular hole 8 diameters are 5mm, and the water 3 in square glass bottle 1 enters cistern 5 by circular hole 8 camber lines; In square glass bottle 1, be loaded with the water 3 of 1/3-4/5.Circular hole is 10cm apart from the distance of pedestal; Circular hole is 10cm apart from the distance of the water surface.Whether square glass bottle 1 is provided with bottle stopper 2 and controls the water of circular hole 8 and flow out.
Using method: first open laser pen 7, the light that allows laser pen 7 penetrate impinges perpendicularly on the square glass bottle 1 that installs water 3, now laser projects on white optical screen 4 through square glass bottle 1 along rectilinear propagation, then we move laser pen 7, adjust the incoming position of laser pen 7, make laser pen 7 equally vertically inject square glass bottle 1, simultaneously just through the circular hole 8 on square glass bottle 1, at this moment the laser on white optical screen 4 disappears, due to the laser of vertically injecting square glass bottle 1 when through circular hole 8 along with total reflection has occurred in the bending of current, after there is multiple total reflection, laser is on no longer along rectilinear propagation to white optical screen 4, the demonstration being so just perfectly clear the total reflection phenomenon of laser.
The above not imposes any restrictions technical scope of the present utility model, and all any amendment, equivalent variations and modifications of above embodiment being done according to the utility model technical spirit, all still belong in the scope of the technical solution of the utility model.
Claims (4)
1. total reflection demonstrator, it is characterized in that: light source, transparent water container, cistern and display screen are arranged in order from front to back, described transparent water container, cistern and display screen are fixed on pedestal, described transparent water container is square column type, transparent water container upper end is provided with the lid that matches, transparent water vessel faces is provided with circular hole to a side of cistern, and the water in transparent water container enters cistern by circular hole after lid is taken away; In transparent water container, be loaded with the water of 1/3-4/5.
2. total reflection demonstrator according to claim 1, is characterized in that: the Circularhole diameter of transparent water container one side is 3-8mm, and circular hole is 5-15cm apart from the distance of container bottoms; Circular hole is 8-16cm apart from the distance of the water surface.
3. total reflection demonstrator according to claim 1, is characterized in that: described transparent water container is square glass bottle, and square glass bottle is provided with bottle stopper.
4. total reflection demonstrator according to claim 1, is characterized in that: described light source is laser pen, and pedestal is plank, and display screen is white optical screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105587.8U CN203812468U (en) | 2014-03-10 | 2014-03-10 | Total reflection demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105587.8U CN203812468U (en) | 2014-03-10 | 2014-03-10 | Total reflection demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812468U true CN203812468U (en) | 2014-09-03 |
Family
ID=51451193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105587.8U Expired - Fee Related CN203812468U (en) | 2014-03-10 | 2014-03-10 | Total reflection demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916199A (en) * | 2015-06-25 | 2015-09-16 | 陕西师范大学 | Transparent liquid mutual solution process visualization experiment device and experiment method |
| CN104933931A (en) * | 2015-06-25 | 2015-09-23 | 陕西师范大学 | Experimental device for heat flow beam splitting effect in liquid and experimental method |
| CN107424495A (en) * | 2017-09-21 | 2017-12-01 | 曾科军 | The full parabola light propagation demonstration device of adjustable water flow |
-
2014
- 2014-03-10 CN CN201420105587.8U patent/CN203812468U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916199A (en) * | 2015-06-25 | 2015-09-16 | 陕西师范大学 | Transparent liquid mutual solution process visualization experiment device and experiment method |
| CN104933931A (en) * | 2015-06-25 | 2015-09-23 | 陕西师范大学 | Experimental device for heat flow beam splitting effect in liquid and experimental method |
| CN104916199B (en) * | 2015-06-25 | 2017-07-11 | 陕西师范大学 | Transparency liquid dissolves each other process visualization experimental provision and experimental method |
| CN107424495A (en) * | 2017-09-21 | 2017-12-01 | 曾科军 | The full parabola light propagation demonstration device of adjustable water flow |
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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: 20140903 Termination date: 20200310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |