CN204576932U - Optical demonstration instrument for teaching - Google Patents
Optical demonstration instrument for teaching Download PDFInfo
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- CN204576932U CN204576932U CN201520190602.8U CN201520190602U CN204576932U CN 204576932 U CN204576932 U CN 204576932U CN 201520190602 U CN201520190602 U CN 201520190602U CN 204576932 U CN204576932 U CN 204576932U
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- reflecting plate
- light
- medium chamber
- sphere
- medium
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Abstract
The utility model relates to a kind of optical demonstration instrument for teaching, it is provided with transparent ball on base, the inner chamber of transparent ball is provided through the light-passing board of the centre of sphere, by sphere cavity being divided into first medium chamber and second medium chamber, the first reflecting plate of the centre of sphere is provided through in first medium chamber, the second reflecting plate of the centre of sphere is provided through in second medium chamber, first reflecting plate and the second reflecting plate are vertical with light-passing board in same plane, and the sidewall in first medium chamber and second medium chamber is processed with first medium entrance, second medium entrance respectively; The utility model can demonstrate the rectilinear propagation of light, reflection and refraction effectively.
Description
Technical field
The utility model belongs to optical demo instrument, particularly a kind of optical demonstration instrument for teaching.
Background technology
The rectilinear propagation of light, reflection, refraction effect and relevant law, one of important knowledge in physics teaching in secondary school, normally draw by protractor and be described, the reading of usual angle is not directly perceived, if directly teach relevant knowledge in the mode of theory to student, student may be caused not to be very directly perceived and vivid to the understanding of relevant knowledge.Therefore, while the reflection, refraction relevant knowledge of study light, need to do some little experiments, carry out Inquiry Learning, to strengthen the understanding of student to relevant knowledge further.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, easy to operate, experimental phenomena obvious, effectively can demonstrate the optical demonstration instrument for teaching of the rectilinear propagation of light, reflection and refraction effect.
To achieve these goals, the technical scheme that the utility model adopts is: on base, be provided with transparent ball, the inner chamber of transparent ball is provided through the light-passing board of the centre of sphere, by sphere cavity being divided into first medium chamber and second medium chamber, the first reflecting plate of the centre of sphere is provided through in first medium chamber, the second reflecting plate of the centre of sphere is provided through in second medium chamber, first reflecting plate and the second reflecting plate are vertical with light-passing board in same plane, the sidewall in first medium chamber and second medium chamber is processed with first medium entrance respectively, second medium entrance.
Be processed with the first slit and the second slit respectively at the middle part of the first above-mentioned reflecting plate and the second reflecting plate, width and the length ratio of the first slit and the second slit are 1:1 ~ 5.
The edge of above-mentioned light-passing board and the first reflecting plate, the second reflecting plate is all carved with angle index line.
Optical demonstration instrument for teaching of the present utility model is in transparent ball, be provided through the centre of sphere light-passing board and the first reflecting plate, the second reflecting plate, effectively can demonstrate the rectilinear propagation of light, reflection and refraction effect, its structure is simple, demonstrating visual, easy to operate, be applicable to using in middle and primary schools' optics teaching.
Accompanying drawing explanation
Fig. 1 is the optical demonstration instrument for teaching structural representation of embodiment 1.
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1.
Embodiment
Now in conjunction with the accompanying drawings and embodiments the technical solution of the utility model is further described, but the utility model is not limited only to following enforcement situation.
Embodiment 1
From Fig. 1 and 2, the optical demonstration instrument for teaching of the present embodiment is made up of transparent ball 2, light-passing board 3, first reflecting plate 4 and the second reflecting plate 5.
The transparent ball 2 of the present embodiment is the diameter adopting quartz glass to make is the hollow ball of 30mm, at the inner chamber of this spheroid, the light-passing board 3 that a thickness is 1mm is installed, this light-passing board 3 inwall of powerful transparent adhesive tape and spheroid bonds, it is also adopt the good quartz glass of light transmission to make, angle index line is carved with in edge, sphere cavity is divided into reciprocity first medium chamber and second medium chamber by the centre of sphere that this light-passing board 3 is through spheroid, conveniently to the propagation medium that first medium chamber is different with second medium intracavitary administration, the present embodiment is processed with first medium entrance and second medium entrance respectively on the sidewall in first medium chamber and second medium chamber.First reflecting plate 4 of semicircular structure is installed in first medium chamber, this first reflecting plate 4 is vertical with light-passing board 3 through the centre of sphere, common plane mirror can be adopted, its thickness is 1mm, be processed with at the middle part of the first reflecting plate 4 one long for 10mm, wide is first slit of 10mm, second reflecting plate 5 of semicircular structure is installed in second medium chamber, this second reflecting plate 5 is common plane mirrors, thickness is 1mm, in same plane and through the centre of sphere with the first reflecting plate 4, be processed with at the middle part of the second reflecting plate 5 one long for 10mm, wide is second slit of 10mm, light is facilitated to enter.Also angle index line is processed with, to facilitate viewing angle at first reflecting plate 4 of the present embodiment and the edge of the second reflecting plate 5.
The optical demonstration instrument for teaching of the present embodiment drill need in use with generating laser with the use of.
1, the rectilinear propagation demonstration of light
Transparent ball 2 is rotated to light-passing board 3 vertical with base 1, first reflecting plate 4, second reflecting plate 5 level, the light sent by light source is along light-passing board 3 surface in first medium chamber from left side horizontal emission, the position outgoing of light along straight line from the right side of light-passing board 3 about vertical center line symmetry, namely demonstrates the rectilinear propagation law of light.
2, the reflection law of light is demonstrated
Transparent ball 2 is rotated to light-passing board 3 vertical with base 1, first reflecting plate 4 and the second reflecting plate 5 level, the light that light source sends injects centre of sphere place along light-passing board 3 surface in first medium chamber from the angle index of 30 °, launch in the center of the first reflecting plate 4, along the angle index place outgoing of 150 ° of light-passing board 3, symmetrical at incident light and the emergent light vertical center line on the surface of light-passing board 3 about light-passing board 3, namely the incident angle formed is equal with emergence angle, demonstrate the reflection law of light, can also test along the different angles of light-passing board 3.
3, the refraction law of light is demonstrated
Air is filled in first medium chamber, water is filled in second medium chamber, transparent ball 2 is rotated to the first reflecting plate 4, second reflecting plate 5 vertical with base 1, light-passing board 3 level, the light that light source sends is arbitrarily angled on the surface of the first reflecting plate 4 injects centre of sphere place, light to enter in second medium chamber through light-passing board 3 and reflects at the circle centre position of light-passing board 3, along the surperficial outgoing of the second reflecting plate 5 in second medium chamber, verify the refraction law of light according to the size of refraction angle and incident angle.
Embodiment 2
The present embodiment be processed with at the middle part of the first reflecting plate 4 one long for 10mm, wide is first slit of 2mm, second reflecting plate 5 of semicircular structure is installed in second medium chamber, this second reflecting plate 5 is common plane mirrors, and thickness is 1mm, is in same plane and through the centre of sphere with the first reflecting plate 4, be processed with at the middle part of the second reflecting plate 5 one long for 10mm, wide is second slit of 2mm, facilitates light to pass through, and is convenient to the rectilinear propagation demonstrating light.
Other parts and structure identical with embodiment 1.
Embodiment 3
The present embodiment be processed with at the middle part of the first reflecting plate 4 one long for 6mm, wide is first slit of 3mm, second reflecting plate 5 of semicircular structure is installed in second medium chamber, this second reflecting plate 5 is common plane mirrors, thickness is 1mm, is in same plane and through the centre of sphere with the first reflecting plate 4, be processed with at the middle part of the second reflecting plate 5 one long be 6mm, wide is second slit of 3mm, facilitates light to walk.
Other parts and structure identical with embodiment 1.
The utility model is not limited only to above-mentioned enforcement situation, does not have the link etc. described in detail all to belong to routine techniques.
Claims (3)
1. an optical demonstration instrument for teaching, it is characterized in that: transparent ball (2) is installed on base (1), the inner chamber of transparent ball (2) is provided through the light-passing board (3) of the centre of sphere, by sphere cavity being divided into first medium chamber and second medium chamber, first reflecting plate (4) of the centre of sphere is provided through in first medium chamber, second reflecting plate (5) of the centre of sphere is provided through in second medium chamber, first reflecting plate (4) and the second reflecting plate (5) are vertical with light-passing board (3) in same plane, the sidewall in first medium chamber and second medium chamber is processed with first medium entrance respectively, second medium entrance.
2. optical demonstration instrument for teaching according to claim 1, it is characterized in that: be processed with the first slit and the second slit respectively at the middle part of the first reflecting plate (4) and the second reflecting plate (5), width and the length ratio of the first slit and the second slit are 1:1 ~ 5.
3. optical demonstration instrument for teaching according to claim 1, is characterized in that: the edge of described light-passing board (3) and the first reflecting plate (4), the second reflecting plate (5) is all carved with angle index line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190602.8U CN204576932U (en) | 2015-03-31 | 2015-03-31 | Optical demonstration instrument for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190602.8U CN204576932U (en) | 2015-03-31 | 2015-03-31 | Optical demonstration instrument for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204576932U true CN204576932U (en) | 2015-08-19 |
Family
ID=53869536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520190602.8U Expired - Fee Related CN204576932U (en) | 2015-03-31 | 2015-03-31 | Optical demonstration instrument for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204576932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355126A (en) * | 2015-12-08 | 2016-02-24 | 玉林师范学院 | Light reflection and refraction measuring apparatus |
| CN106228877A (en) * | 2016-07-30 | 2016-12-14 | 董亚伦 | The reflection teaching demonstration device of light |
-
2015
- 2015-03-31 CN CN201520190602.8U patent/CN204576932U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355126A (en) * | 2015-12-08 | 2016-02-24 | 玉林师范学院 | Light reflection and refraction measuring apparatus |
| CN105355126B (en) * | 2015-12-08 | 2018-06-15 | 玉林师范学院 | A kind of reflection of light and refraction measuring device |
| CN106228877A (en) * | 2016-07-30 | 2016-12-14 | 董亚伦 | The reflection teaching demonstration device of light |
| CN106228877B (en) * | 2016-07-30 | 2018-10-02 | 朱晶晶 | The reflection teaching demonstration device of light |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180331 |