CN210429014U - Teaching aid for comprehensively researching light propagation law - Google Patents
Teaching aid for comprehensively researching light propagation law Download PDFInfo
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- CN210429014U CN210429014U CN201921479257.4U CN201921479257U CN210429014U CN 210429014 U CN210429014 U CN 210429014U CN 201921479257 U CN201921479257 U CN 201921479257U CN 210429014 U CN210429014 U CN 210429014U
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Abstract
The utility model relates to a comprehensive research light propagation law's teaching aid, its characterized in that: base, laser pen, optical observation box and optical observation box lid. The optical observation box consists of two semicircles and a cuboid transparent box, a plane mirror is attached to the center of the diameter surface of one semicylinder, and two cylindrical shafts are respectively arranged at the bottom center points of the interfaces of the two semicylinders and the cuboid; one end of the base is provided with a support frame for fixing the laser pen, and the other end of the base is provided with a circular tube which can be combined with the cylindrical shaft at the bottom of the optical observation box to form a rotating shaft; the light emitted by the laser pen supported by the base support frame can always irradiate on the rotating shaft supporting the observation box; the optical observation box cover can well seal the optical observation box. The utility model discloses can be used for forming the tyndall effect at the optical observation box filling colloid, the student can change light incident angle and draw the light path on the lid and observe the propagation law of angle scale analysis light on the box according to optics by the rotatory box of observing of different rotation axes.
Description
Technical Field
The utility model relates to an optical instrument that can show light propagation law, in particular to can show the light propagation law demonstrator of light path under the non-darkroom environment, be particularly useful for the optical instrument of exploration and demonstration about the rule of directly penetrating, reflection and refraction propagation of light on middle school physics, middle and primary school's science class.
Background
Optics is an important field of natural science, which is a subject of the convergence of theory and experiment, and scientific exploration is an important way for students to learn scientific knowledge and improve scientific ability. However, the traditional teaching aid for direct light, reflection and refraction of light is separated, and the teaching aid is damaged and lost due to various reasons, so that the system is not favorable for system exploration, and a knowledge system is formed. In addition, not all schools have good conditions for performing optical experiments, so that part of teachers speak experiments or simply demonstrate experiments, the subjectivity of students is difficult to reflect, and the relationship between the incident angle of light and the reflection angle and the refraction angle cannot be shown by real experimental data, so that the abstract optical law is more obscure and understandable.
Under the normal lighting condition, the light path is difficult to distinguish, some teachers form a darkroom by means of curtains in order to improve the teaching effect, but the light is not clear even in a dark environment; some teachers teach by means of smoke, the method has the effect, but in an open space, smoke is dissipated quickly, and smoke for experiments is gathered indoors and breathed by students, so that the students are harmful to health.
In summary, the prior art has the following defects:
1. special instruments and equipment are expensive and difficult to popularize comprehensively or schools have too few students and cannot participate in the special instruments and equipment in a conditioned way;
2. classroom teaching conditions are simple and crude, light paths are not clear, and the use of smoke is not favorable for the health of students;
3. the simple teaching mode can not directly show the angle relation of the light path.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that a teaching aid of comprehensive study light propagation law is provided, it can let the rule teaching break away from laboratory, darkroom, smog condition restriction of penetrating directly, reflection, refraction light path propagation of light, and mechanical structure replaces the manual work to hold the operation and increases experiment accuracy nature.
In order to realize the above functions, the technical scheme of the utility model is that: the utility model provides a comprehensive research light propagation law's teaching aid which characterized in that: the optical observation box is selectively wedged with two cylindrical shafts at the bottom into the base according to different optical experiments to form two rotating systems with different axial centers; the laser pen is fixed by the base support frame, the emitted light source always faces the rotating shaft, and the rotating shaft point is the incident point of light.
Furthermore, the optical observation box consists of a semi-cylinder, a cuboid and a semi-cylinder and a box cover, and the box body is made of transparent materials; the bottom of the optical observation box is provided with two cylindrical shafts which are respectively positioned at the circle center of the bottom semi-cylindrical box body; the side surface of one semi-cylindrical box body is pasted with a reflector, the other side surface is not processed, and light can penetrate through the semi-cylindrical box body.
Furthermore, the base circular tube is provided with 180-degree semicircular guide rails close to the outer side, and the support frame is provided with a semicircular column open groove.
Furthermore, the optical observation box cover is provided with angle scales which take the circle centers of the semi-circles at the two ends as the central point, each grid is 1 degree, the cover and the box body are tightly combined, and liquid and gas are effectively prevented from overflowing.
The utility model has the advantages that
(1) This teaching aid rotating system machinery combines tightly, rotates the little easy control of in-process angle error, and laser pen emission light source angle control is convenient, and it is little that the experiment accuracy nature is influenced by artifical error.
(2) This teaching aid box body adopts extremely thin transparent material, and the box body rotation in-process, semicircle edge tangent line are perpendicular with light all the time, and the box body wall that perpendicular sees through all the time when laser pen emission light incides has reduced the systematic error that leads to the light refraction by the box body wall.
(3) When the teaching aid is used, the side of the box cover with scales faces downwards, the angle of light deflection can be read out obviously and quickly according to the scales, and a contrast path is drawn on the other side of the box cover.
(4) Colloidal substances such as hydrosol or aerosol can be filled in the teaching aid box, the light path is clearly visible when passing through, and the box cover can effectively prevent the filled substances from overflowing, so that the teaching aid box is environment-friendly and healthy.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an isometric view of a teaching aid for comprehensively studying light propagation laws;
FIG. 2 is a three-view of an optical viewing pod cover;
FIG. 3 is a top view of a teaching aid for comprehensive study of light propagation laws;
FIG. 4 is a schematic bottom view of a teaching aid for comprehensive study of light propagation laws;
fig. 5 is a side view of a teaching aid for comprehensively studying light propagation laws.
Detailed Description
The technical solution of the present invention will be described clearly and completely through the following detailed description.
The utility model provides a comprehensive study light propagation law's teaching aid, concrete structure is shown as figure 1 and figure 2 and includes: base 1, laser pen 2, optics observe box 10 and optics and observe lid 11, and the support frame directly inlays on base 1, and in laser pen 2 placed support frame semicircular groove, optics observed box passed through cylinder axle 6 and cylinder axle 7 and base 1 and goes up pipe 9 and agree with and form rotational system.
The utility model discloses optical observation box 10 concrete structure is shown in fig. 3, comprises semicylinder 12-cuboid 5-semicylinder 3, and reflector 4 (also can paste the diameter face central point of semicylinder box body 12) is put to the diameter face central point of semicylinder box body 3, and the substructure is shown in fig. 4, has cylinder axle 6 and cylinder axle 7.
The utility model discloses concrete structure in base bottom is shown in fig. 4, has a concentric semicircle guide rail 8 around pipe 7, and semicircle guide rail 8 external diameter is tangent with not wedging cylinder axle 6 or cylinder axle, 7 during the system function.
The utility model discloses a comprehensive study light propagation law's teaching aid's theory of operation as follows (following concrete implementation scheme reflector all pastes the diametric plane central point of semicylinder box body 3 and puts):
when carrying out the teaching of directly penetrating of light, an optional rotation system to packing the colloid in the semicircle column box body that corresponds, the one side that the box lid 11 is observed to optics has the scale is to the lower cover, and when laser pen 2 emission light got into and observes the box, the colloid in the semicircle column box body produced the dingdall phenomenon, and student or teacher draw the light path on the box lid 11 is observed to optics this moment, compares with the line of drawing with the ruler, can obtain light and propagate along the straight line in same kind of even medium.
When light reflection teaching is carried out, the cylindrical shaft 7 of the optical observation box 10 is wedged into the base circular tube 9, the cylindrical shaft 6 and the semicircular guide rail 8 are tangent to form a rotating system taking the cylindrical shaft 7 as an axis, and the rotating system can enable light emitted by the laser pen 2 to always directly face the center of the semi-cylindrical box body 3 and also be an angle scale central point, namely an incidence point, of the box cover 11 of the optical observation box; when the optical observation box is used, the semi-cylindrical box 3 is filled with colloids such as liquid sol or aerosol, and then the optical observation box cover 11 is covered, when the laser pen 2 emits light rays to irradiate the colloids in the semi-cylindrical box 3, a Tyndall effect light path is clear and visible, the light rays are reflected, and at the moment, students or teachers draw the light path on the optical observation box cover 11; then rotate optics and observe 10 incident ray angle and change and draw the light path again on optics observation lid 11, rotate optics and observe 10 box bodies repeatedly and draw the light path and compare, summarize law at last and wash the teaching aid.
When light refraction teaching is carried out, the cylindrical shaft 6 at the bottom of the optical observation box 10 is wedged into the circular seat tube 9, and the cylindrical shaft 7 and the semicircular guide rail 8 are tangent to form a rotating system taking the cylindrical shaft 6 as an axis; during the use earlier at cuboid box 5 and semi-cylindrical box 12 in the packing smog or the hydrosol respectively (two box bodys are packed different medium respectively), then cover optical observation lid 11, in laser pen 2 emission light penetrated into semi-cylindrical box 12 to when the interface of semi-cylindrical box 12 and cuboid box 5, the refraction phenomenon takes place for light promptly at the interface of two kinds of media. Due to the colloid filled in the semi-cylindrical box 12 and the cuboid box 5, the light path of the Tdadel effect generated after the light is emitted is clear and visible, and at the moment, students or teachers draw the light path on the optical observation box cover 11; rotate optics and observe 10 incident light angle and change and draw the light path again on optics observation lid 11 afterwards, rotate optics and observe 10 box bodies of box and draw the light path repeatedly, contrast incident angle and refraction angle numerical value, summarize law at last and wash the teaching aid.
The above-mentioned embodiments are only described as the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the technical content of the present invention, which is claimed by the present invention, is fully recorded in the technical claims.
Claims (6)
1. The utility model provides a comprehensive study light propagation law's teaching aid, it includes that base, optics observe box lid, laser pen, characterized by: the optical observation box consists of a semi-cylinder, a cuboid, a semi-cylinder and a box cover, and two cylindrical shafts are arranged at the bottom of the optical observation box; one end of the base is provided with a circular tube which is wedged with two cylindrical shafts at the bottom of the optical observation box, and the support frame at the other end of the base supports the laser pen.
2. The teaching aid for comprehensively researching light propagation laws according to claim 1, is characterized in that: the optical observation box consists of a semi-cylinder, a cuboid and a semi-cylinder and an optical observation box cover, and the box body cover is made of transparent materials.
3. The teaching aid for comprehensively researching light propagation laws according to claim 2, is characterized in that: the optical observation box is provided with a transparent material sealing cover, and angle scales with the circle centers of the semi-circles at the two ends as the central point are carved on the cover, and each grid is 1 degree.
4. The teaching aid for comprehensively researching light propagation laws according to claim 1, is characterized in that: the bottom of the optical observation box is provided with two cylindrical shafts which are respectively positioned at the circle center position of the semi-cylindrical box body and are wedged with the circular tube of the base, and the optical observation box respectively rotates 180 degrees relative to the base by taking the circle center of the semi-cylindrical box body as an axis.
5. The teaching aid for comprehensively researching light propagation laws according to claim 2, is characterized in that: a reflector is attached to one side face of one of the semi-cylindrical box bodies of the optical observation box, and the other side face of the optical observation box is not processed, so that light can penetrate through the optical observation box.
6. The teaching aid for comprehensively researching light propagation laws according to claim 1, is characterized in that: a concentric semicircular guide rail is arranged beside the circular tube of the base and used for guiding the optical observation box to rotate 180 degrees relative to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479257.4U CN210429014U (en) | 2019-09-06 | 2019-09-06 | Teaching aid for comprehensively researching light propagation law |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479257.4U CN210429014U (en) | 2019-09-06 | 2019-09-06 | Teaching aid for comprehensively researching light propagation law |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210429014U true CN210429014U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921479257.4U Expired - Fee Related CN210429014U (en) | 2019-09-06 | 2019-09-06 | Teaching aid for comprehensively researching light propagation law |
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| CN (1) | CN210429014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851030A (en) * | 2021-09-27 | 2021-12-28 | 廊坊师范学院 | University is angle teaching aid for teaching |
| CN114360348A (en) * | 2022-03-01 | 2022-04-15 | 福建省同安第一中学 | Three-dimensional light path experiment demonstration method |
-
2019
- 2019-09-06 CN CN201921479257.4U patent/CN210429014U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851030A (en) * | 2021-09-27 | 2021-12-28 | 廊坊师范学院 | University is angle teaching aid for teaching |
| CN113851030B (en) * | 2021-09-27 | 2023-06-13 | 廊坊师范学院 | Angle teaching aid for university teaching |
| CN114360348A (en) * | 2022-03-01 | 2022-04-15 | 福建省同安第一中学 | Three-dimensional light path experiment demonstration method |
| CN114360348B (en) * | 2022-03-01 | 2024-02-02 | 福建省同安第一中学 | Three-dimensional light path experiment demonstration method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20200428 Termination date: 20210906 |