CN107886824B - Optical total reflection demonstration device - Google Patents
Optical total reflection demonstration device Download PDFInfo
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- CN107886824B CN107886824B CN201711442903.5A CN201711442903A CN107886824B CN 107886824 B CN107886824 B CN 107886824B CN 201711442903 A CN201711442903 A CN 201711442903A CN 107886824 B CN107886824 B CN 107886824B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/22—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for optics
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Abstract
The invention provides an optical total reflection demonstration device, a right guide rail, the optical total reflection demonstration device comprises a left guide rail, a right guide rail, a left guide rail and a laser emitter, wherein the left guide rail is fixedly arranged on the upper surface of a workbench, a slide block on the right guide rail and a slide block on the left guide rail correspond to each other in pairs and are connected through a connecting rod, a bar stock retainer is arranged above each slide block, a bar stock made of a transparent material is placed above each two retainers, an infrared correlation switch emission end is arranged on the right side of the middle part of the right guide rail, an infrared correlation switch receiving end is arranged on the left side of the middle part of the left guide rail, the infrared correlation switch emission end and the infrared correlation switch receiving end are positioned at; and the device can also demonstrate whether the full radiation phenomenon occurs when light rays enter different transparent materials at the same incident angle.
Description
Technical Field
The invention relates to the field of scientific principle demonstration instruments, in particular to an optical total reflection demonstration device.
Background
Total reflection, also known as total internal reflection, refers to the phenomenon that light is totally reflected back into the original medium when it strikes the interface of the optically denser medium. The total reflection phenomenon is an important optical phenomenon and is an important knowledge point of middle school physics. At present, a plurality of total reflection demonstration devices are provided, but no demonstration device which can demonstrate whether the total reflection phenomenon occurs when light rays enter transparent materials at different incidence angles or not and can also demonstrate whether the total reflection phenomenon occurs when the light rays enter different transparent materials at the same incidence angle is available.
Disclosure of Invention
The invention provides an optical total reflection demonstration device, comprising: the device comprises a workbench, a right guide rail, a sliding block, a left guide rail, a glass rod, a quartz rod, a crystal rod, an infrared correlation switch transmitting end supporting frame, an infrared correlation switch receiving end supporting frame, an arc-shaped sliding groove, a laser transmitter, a rod material retaining frame, an arc-shaped sliding block, a lower adjusting nut, an upper adjusting nut, a screw rod and a connecting rod.
Furthermore, the right guide rail and the left guide rail are fixedly arranged on the upper surface of the workbench, three sliding blocks capable of sliding along the right guide rail are arranged on the right guide rail, three sliding blocks capable of sliding along the left guide rail are arranged on the left guide rail, and the sliding blocks on the right guide rail and the sliding blocks on the left guide rail correspond to each other two by two and are connected through the connecting rod, so that the sliding blocks at the two ends of the connecting rod can only slide synchronously. And a bar stock retainer is arranged above each sliding block, a bar stock made of a transparent material is arranged above each two retainers, the three bar stocks are parallel to each other, and the three bar stocks are respectively a glass bar, a quartz bar and a crystal bar.
Furthermore, the right side in the middle of the right guide rail is provided with an infrared correlation switch transmitting end, the left side in the middle of the left guide rail is provided with an infrared correlation switch receiving end, and the infrared correlation switch transmitting end and the infrared correlation switch receiving end are located at the same height and are higher than the sliding block.
Furthermore, the infrared correlation switch transmitting end is fixed on the workbench through an infrared correlation switch transmitting end support frame, and the infrared correlation switch receiving end is fixed on the workbench through an infrared correlation switch receiving end support frame.
Further, when the bar stock holder moves to the position between infrared correlation switch transmitting terminal and the infrared correlation switch receiving terminal, infrared ray that infrared correlation switch transmitting terminal sent can not be received to infrared correlation switch receiving terminal, the system suggestion has the bar stock to reach appointed experimental position, infrared ray that infrared correlation switch transmitting terminal sent is received to infrared correlation switch receiving terminal, the system suggestion does not have the bar stock to be in appointed experimental position department, under the condition that no bar stock is in appointed experimental position department, system control laser emitter can't get electric.
The arc spout is semi-circular, the arc spout can slide along the arc spout, screw rod fixed welding is on the arc spout upper surface, laser emitter installs in the screw rod top, the laser emitter below is provided with down adjusting nut, the laser emitter top is provided with adjusting nut, when needing to adjust laser emitter's height, adjusting nut is gone up in the unscrewing, then will adjust nut down and twist to corresponding height soon, adjust laser emitter's the angle of putting, make the left end face of the bar of the directional appointed experimental position department of laser that sends, then screw up adjusting nut.
During the use, the slider slides, make the glass stick, quartz rod or quartzy stick reachs the position between infrared correlation switch transmitting terminal and the infrared correlation switch receiving terminal, the system suggestion has the bar to be in appointed experimental position department, slip arc slider reachs the assigned position, adjust laser emitter's height and bar height the same, adjust laser emitter's the angle of putting, make the left end face of the bar of the directional appointed experimental position department of laser emitter's transmitting terminal, start laser emitter, laser jets into the bar with certain angle.
When a demonstration experiment is carried out, a bar is placed at a designated experiment position, the position of the arc-shaped sliding block is adjusted, and whether the total reflection phenomenon occurs or not is demonstrated when different incidence angles are different; or fixing the position of the arc-shaped sliding block, selecting different bars to be placed at a specified experimental position, and observing whether the light rays can be totally reflected in the different bars under the condition of the same incident angle.
The invention has the following beneficial effects: the optical total reflection demonstration device can demonstrate whether the total reflection phenomenon occurs when light rays enter the transparent material at different incidence angles; and the phenomenon that whether the total reflection phenomenon occurs when the light rays enter different transparent materials at the same incident angle can be demonstrated.
Drawings
Fig. 1-top view of an optical total reflection demonstration apparatus of the present invention.
Fig. 2-front view of an optical total reflection demonstration apparatus of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Examples are given.
An optical total reflection demonstration apparatus comprising: the device comprises a workbench 1, a right guide rail 2, a sliding block 3, a left guide rail 4, a glass rod 5, a quartz rod 6, a crystal rod 7, an infrared correlation switch transmitting end 8, an infrared correlation switch transmitting end supporting frame 81, an infrared correlation switch receiving end 9, an infrared correlation switch receiving end supporting frame 91, an arc-shaped sliding groove 10, a laser transmitter 11, a bar material retaining frame 12, an arc-shaped sliding block 13, a lower adjusting nut 14, an upper adjusting nut 15, a screw rod 16 and a connecting rod 17.
The right guide rail 2 and the left guide rail 4 are fixedly arranged on the upper surface of the workbench 1, three sliding blocks 3 capable of sliding along the right guide rail are arranged on the right guide rail 2, three sliding blocks 3 capable of sliding along the left guide rail are arranged on the left guide rail 4, the sliding blocks on the right guide rail and the sliding blocks on the left guide rail correspond to each other in pairs and are connected through a connecting rod 17, and therefore the sliding blocks at two ends of the connecting rod 17 can only slide synchronously. A bar stock retainer 12 is arranged above each sliding block, a bar stock made of transparent material is placed above each two retainers 12, and the three bar stocks are parallel to each other. The three bar materials are respectively a glass bar 5, a quartz bar 6 and a crystal bar 7.
The right side at 2 middle parts of right guide rail is provided with infrared correlation switch transmitting terminal 8, and the left side at 4 middle parts of left guide rail is provided with infrared correlation switch receiving terminal 9, and infrared correlation switch transmitting terminal 8 is fixed on workstation 1 through infrared correlation switch transmitting terminal support frame 81, and infrared correlation switch receiving terminal 9 is fixed on workstation 1 through infrared correlation switch receiving terminal support frame 91. The infrared correlation switch transmitting end 8 and the infrared correlation switch receiving end 9 are at the same height and higher than the sliding block 3.
When the bar stock holder 12 moves to the position between the infrared correlation switch transmitting terminal 8 and the infrared correlation switch receiving terminal 9, the infrared correlation switch receiving terminal 9 cannot receive the infrared rays sent by the infrared correlation switch transmitting terminal 8, the system prompts that the bar stock arrives at the specified experimental position, when the infrared correlation switch receiving terminal 9 receives the infrared rays sent by the infrared correlation switch transmitting terminal 8, the system prompts that no bar stock is located at the specified experimental position, and under the condition that no bar stock is located at the specified experimental position, the system controls the laser transmitter 11 to be unable to be powered on.
Arc spout 10 is semi-circular, arc slider 13 can slide along arc spout 10, 16 fixed welding of screw rod are at arc slider 13 upper surface, laser emitter 11 installs in the screw rod 16 top, laser emitter 11 below is provided with down adjusting nut 14, laser emitter 11 top is provided with adjusting nut 15, when needing to adjust laser emitter 11's height, adjusting nut 15 is loosened in the unscrewing, then adjusting nut 14 will be down twisted to corresponding height, adjust laser emitter 11 put the angle, make the left end face of the bar of the directional appointed experimental position department of laser that sends, then screw up adjusting nut 15.
The use method of the optical total reflection demonstration device comprises the following steps: slide block 3 slides, make glass stick 5, quartz stick 6 or quartz stick 7 reach the position between infrared correlation switch transmitting terminal 8 and the infrared correlation switch receiving terminal 9, the system suggestion has the bar to be in appointed experimental position department, slide arc slider 13 reachs the assigned position, adjust laser emitter 11's height and bar height phase, adjust laser emitter 11's the angle of putting, make the left end face of the bar of the directional assigned experimental position department of transmitting terminal of laser emitter 11, start laser emitter 11, laser jets into the bar with certain angle alpha (this angle alpha is decided by arc slider 13's position).
During the experiment, a bar stock is placed at the designated experiment position, and the size of the angle alpha is adjusted by adjusting the position of the arc-shaped sliding block 13, so that whether the total reflection phenomenon occurs or not at different incidence angles is demonstrated. The position of the arc-shaped sliding block 13 can be fixed, different bars are selected for placing at a designated experimental position, and whether the light can be totally reflected in the different bars or not is observed under the condition of the same incident angle.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (1)
1. An optical total reflection demonstration apparatus comprising: workstation, right guide rail, slider, left guide rail, glass stick, quartz stick, crystal bar, infrared correlation switch transmitting terminal, infrared correlation switch receiving terminal, arc spout, laser emitter, bar holder, arc slider, adjusting nut down, go up adjusting nut, screw rod, connecting rod, its characterized in that: the right guide rail and the left guide rail are fixedly arranged on the upper surface of the workbench, three sliding blocks capable of sliding along the right guide rail are arranged on the right guide rail, three sliding blocks capable of sliding along the left guide rail are arranged on the left guide rail, the sliding blocks on the right guide rail and the sliding blocks on the left guide rail correspond to each other in pairs and are connected through connecting rods, so that the sliding blocks at the two ends of each connecting rod can only slide synchronously; a bar stock retainer is arranged above each sliding block, a bar stock made of transparent material is arranged above each two retainers, the three bar stocks are parallel to each other, and the three bar stocks are respectively a glass bar, a quartz bar and a crystal bar; the system prompts that no bar material is positioned at a designated experimental position when the infrared correlation switch receiving end receives the infrared ray emitted by the infrared correlation switch emitting end, and controls the laser emitter to be incapable of powering on under the condition that no bar material is positioned at the designated experimental position; the arc-shaped chute is semicircular, the arc-shaped slide block can slide along the arc-shaped chute, the screw rod is fixedly welded on the upper surface of the arc-shaped slide block, the laser emitter is installed above the screw rod, the lower adjusting nut is arranged below the laser emitter, the upper adjusting nut is arranged above the laser emitter, when the height of the laser emitter needs to be adjusted, the upper adjusting nut is unscrewed, then the lower adjusting nut is screwed to a corresponding height, the placement angle of the laser emitter is adjusted, the emitted laser points to the left end face of the bar at the appointed experimental position, and then the upper adjusting nut is screwed; when the device is used, the sliding block is slid, so that a glass rod, a quartz rod or a crystal rod reaches a position between the transmitting end of the infrared correlation switch and the receiving end of the infrared correlation switch, the system prompts that a bar is located at a specified experimental position, the sliding arc-shaped sliding block reaches the specified position, the height of the laser transmitter is adjusted to be the same as the height of the bar, the placement angle of the laser transmitter is adjusted, the transmitting end of the laser transmitter points to the left end face of the bar at the specified experimental position, the laser transmitter is started, and laser is injected into the bar at a certain angle;
when a demonstration experiment is carried out, a bar stock is placed at a designated experiment position, the position of the arc-shaped sliding block is adjusted, and whether the full radiation phenomenon occurs or not at different incidence angles is demonstrated; or fixing the position of the arc-shaped sliding block, selecting different bars to be placed at a designated experimental position, and observing whether the light rays are all subjected to the full radiation phenomenon in the different bars under the condition of the same incident angle, so that whether the full radiation phenomenon occurs when the light rays are incident into the transparent material at different incident angles can be demonstrated; the device can also demonstrate whether the full radiation phenomenon occurs when light rays enter different transparent materials at the same incident angle; the infrared correlation switch transmitting end is fixed on the workbench through an infrared correlation switch transmitting end support frame, and the infrared correlation switch receiving end is fixed on the workbench through an infrared correlation switch receiving end support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442903.5A CN107886824B (en) | 2017-12-27 | 2017-12-27 | Optical total reflection demonstration device |
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|---|---|---|---|
| CN201711442903.5A CN107886824B (en) | 2017-12-27 | 2017-12-27 | Optical total reflection demonstration device |
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| CN107886824A CN107886824A (en) | 2018-04-06 |
| CN107886824B true CN107886824B (en) | 2020-12-04 |
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| CN108648586A (en) * | 2018-05-07 | 2018-10-12 | 芜湖博创新能源科技有限公司 | A kind of photoelectric display education informations experimental bench |
| CN109030225A (en) * | 2018-06-29 | 2018-12-18 | 中国电建集团中南勘测设计研究院有限公司 | A kind of equipment for observing Rockmass fractures in the test of hydraulic fracturing crustal stress in real time |
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| CN2686013Y (en) * | 2004-03-19 | 2005-03-16 | 嘉定区启良中学 | Optical refraction teaching demonstrating instrument |
| CN103093675B (en) * | 2013-01-14 | 2014-09-24 | 青岛大学 | Simulated optical fiber demonstrating device |
| CN203149970U (en) * | 2013-03-22 | 2013-08-21 | 福建省南安市侨光中学 | Light refraction law research instrument based on unit circle method |
| CN203250456U (en) * | 2013-04-15 | 2013-10-23 | 湖州师范学院 | Full reflection contrast demonstration device of light |
| CN204130035U (en) * | 2014-09-03 | 2015-01-28 | 苏州大学 | Dynamic type luminous ceiling deduction device and the luminous deduction room of dynamic type |
| CN105355126B (en) * | 2015-12-08 | 2018-06-15 | 玉林师范学院 | A kind of reflection of light and refraction measuring device |
| CN105894927B (en) * | 2016-06-28 | 2019-04-09 | 新昌县澄聚农业科技有限公司 | A kind of physical experiment demonstration device |
| CN106023754B (en) * | 2016-07-30 | 2019-03-15 | 董亚伦 | The refraction teaching demonstration device of light |
| CN109192024B (en) * | 2016-07-30 | 2020-08-14 | 乐清市风杰电子科技有限公司 | Light reflection teaching demonstration device |
| CN206400913U (en) * | 2016-08-31 | 2017-08-11 | 李扬帆 | The reflection demonstrating device of Physical Experiment light |
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