CN2828981Y - Optical propagation law demonstrater capable of displaying light path - Google Patents
Optical propagation law demonstrater capable of displaying light path Download PDFInfo
- Publication number
- CN2828981Y CN2828981Y CN 200520026685 CN200520026685U CN2828981Y CN 2828981 Y CN2828981 Y CN 2828981Y CN 200520026685 CN200520026685 CN 200520026685 CN 200520026685 U CN200520026685 U CN 200520026685U CN 2828981 Y CN2828981 Y CN 2828981Y
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- laser pen
- light path
- sleeve pipe
- rotation axis
- container
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Abstract
The utility model discloses an optical propagation law demonstrator capable of displaying light paths. The utility model solves the problems of unclear light paths in a non-darkroom environment, the environmental pollution caused by smoke, too many required instruments, etc. The utility model has the scheme that the demonstrator comprises a supporting device, a light path display container, a laser pen rotating shaft, a laser pen sleeve tube fixing nut, a laser pen regulating device and a laser pen, wherein the supporting device arranged on the ray path display container is a transparent cube and a quarter of a cylinder is cut off at the lower left part of the cube. The interior of the cube is provided with two types of propagation medium with different refractivity, wherein the two types of propagation medium can not mutually dissolved and can display optical paths. The supporting device is connected with a laser pen right-angle support frame at the left end of a supporting plate. The level surface of the laser pen right-angle support frame is provided with a laser pen revolving shaft which is welded with the laser pen sleeve tube fixing nut. Moreover, a vertical plate is also provided with a laser pen sleeve tube fixing nut. The laser pen is screwed in the laser pen sleeve tube fixing nuts through the laser pen regulating device. The utility model provides the initial portable instrument which can be used for visually and clearly observing the light paths in the non-darkroom environment, the structure and the operation are simple, and the demonstrator is suitable for classroom teaching demonstration and students' experiments.
Description
Affiliated technical field
The utility model relates to a kind of optical instrument of energy display light propagation law, be particularly related to a kind of light propagation law demonstration device that under the environment of non-darkroom, can show light path, especially be applicable to the optical instrument of middle school physics lesson one's parents about the explanation and the demonstration of optics teaching.
Background technology
At present, secondary school teachers is when lecturing optical knowledge, and theoretical explanation and experiment are separately carried out.Because the experiment great majority that existing optical instrument carried out must carry out in the darkroom.Yet optical knowledge has left experiment and has just become very abstract, and the student just understands relatively difficulty, if lecture while testing in the darkroom, brings a lot of inconvenience will for normal teaching.For many years, the teacher is teaching for convenience, the photo that the utilization that has is taken in the darkroom, and the courseware that the utilization that has is made comes aided education.Like this, though help the understanding of student to being gained knowledge, directly impression is known natural environment appearance and the objectivity of physics law to be unfavorable for undergoing the student, can directly influence teaching efficiency; In addition, utilize the method for fumigation in traditional teaching process for the demonstration light path, consequently not only light path is not very clear, but also pollutes the environment; The more important thing is, the middle school Experiments of Optics have a lot, want the various propagation laws of display light to need many optical instruments, as smoke box, level crossing, glass block etc., both uneconomical, also inconvenient, experiment is got up more loaded down with trivial details, the school that has in teaching just will partly test to omit and not do, and only be the instruction of preach formula, make the student very abstract to the understanding of optical knowledge.
Technical scheme
The problems referred to above that exist when overcoming in the present classroom propagation law of teaching, demonstration light, the purpose of this utility model provides a kind of, simple in structure, cost is lower, be convenient to operation, and light path non-darkroom environment clear, free from environmental pollution can show the light propagation law demonstration device of light path.
The design proposal that its practical problems that solves the utility model adopts is that it comprises: fulcrum arrangement, light path show container, laser pen rotation axis, laser pen sleeve pipe hold-down nut, laser pen regulating device, laser pen;
The light path that is installed on the fulcrum arrangement shows that container is that the lower left is cut out 1/4 columniform transparent cube, be equipped with in it two kinds immiscible, can show light path and the different propagation medium of refractive index;
Fulcrum arrangement comprises support plate and laser pen right angle rack; Connect the laser pen right angle rack at the support plate left end, the laser pen rotation axis is installed on the surface level of laser pen right angle rack, and on the laser pen rotation axis, weld laser pen sleeve pipe hold-down nut; Laser pen sleeve pipe hold-down nut also is housed on the vertical plate of laser pen right angle rack;
Laser pen screws in the corresponding laser pen sleeve pipe hold-down nut according to requirement of experiment by the laser pen regulating device.
Laser pen regulating device of the present utility model comprises that laser pen sleeve pipe, laser pen switch screw, laser pen elevation angle adjusting screw, post lens constitute; The post lens are equipped with on laser pen sleeve pipe one top, and the other end is installed laser pen elevation angle adjusting screw, laser pen switch screw successively.
Fulcrum arrangement of the present utility model is the triangular supporting frame that increases tight-spiral sucker with lock under support plate.
Increase between triangular supporting frame of the present utility model and the support plate can make light path show container do level and vertically rotate horizontally rotate parts and vertical rotatable parts; Horizontally rotate parts and comprise horizontal rotating shaft, horizontal rotating shaft lock screw; Vertically moving-member comprises vertical rotation axis, vertical rotation axis sleeve pipe, vertical rotation axis lock screw and vertical bearing support.
On the support plate of the present utility model level meter is installed; Light path shows setting angle measuring instrument on the container.
The beneficial effects of the utility model are: this demonstration device can carry out multiple Experiments of Optics, as verify reflection law and refraction law and calculate the relative index of refraction of two media, the total reflection phenomenon of checking light, along the light path of rectilinear propagation, assemble by lens in same uniform dielectric for light, demonstration of disperse function or the like.It is simple in structure, has saved many experimental apparatuss such as smoke box, level crossing, glass block, and cost is greatly reduced.The fumigation that is through with shows the history of light path, and clean environment firendly is free from environmental pollution.
Importantly initiate the various propagation laws of operation demonstration light in the environment of non-darkroom, it shows that light path is clear, directly perceived, make simple, be convenient for carrying, so just instrument can be brought into bright classroom, thereby more convenient teacher's explanation, the experiment and the explanation of knowwhy can be carried out synchronously, common classroom instruction and experimental demonstration are carried out synchronously.Experiment effect image, lively more helps the observation of students experimental phenomena, understands physical concept.The lifelike image thereby the optics teaching that tradition is uninteresting becomes makes optics teaching have more intuitive.
This demonstration device owing between triangular supporting frame and support plate, increase can make light path show container do level or vertically move horizontally rotate parts and vertical moving-member, make the light path of this demonstration device show that container can rotate in the horizontal direction, so the student can clearly observe light path the various propagation laws of light from each different angle, and make that each student can both clearly observe the experiment of being demonstrated in the classroom.
This demonstration device is simple to operate, and level meter has been installed on the support plate, like this, when instrument is fixed on the lectern of inclination or the experiment table, utilizes vertical rotation axis and level meter to make support plate maintenance level by adjustment.Laser pen is installed on the laser pen right angle rack by adjustable apparatus, be convenient to the student and take action on one's own to test, help the understanding of student by experiment, help to make a profound impression to the student to optical knowledge, excite student's learning interest, cultivate students ' practical ability.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 is a laser pen regulating device structural representation of the present utility model
Among the figure: the sucker of 1 tight-spiral with lock, 2 triangular supporting frames, 3 horizontal rotating shafts, 4 horizontal rotating shaft lock screws, 5 vertical rotation axiss, 6 vertical rotation axis sleeve pipes, 7 vertical rotation axis lock screws, 8 vertical bracing frames, 9 support plates, 10 container baffle plates, 11 container fixed screws, 12 laser pen right angle racks, 13 laser pen rotation axiss, 14 laser pen rotation axis adjusting screw, 15 laser pen sleeve pipes, 16 laser pens, 17 laser pen switch screws, 18 laser pen elevation angle adjusting screw, laser pen sleeve pipe hold-down nut on the 19 laser pen rotation axiss, 20 post lens, 21 laser pen right angle racks are the laser pen sleeve pipe hold-down nut of part vertically, 22 light paths show container, 23 light paths show container cover, 24 media, 1,25 medium 2, (requiring the refractive index of the refractive index of medium 2) 26 angel measuring instruments greater than medium 1,27 level meters
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Embodiment 1
As shown in Figure 1, light path shows that container (22) is that a lower left is cut out 1/4 columniform cube, adopts transparent material to make, and this light path demonstration container (22) is made with glass.Be equipped with in the container and can show light path and two kinds of different immiscible propagation mediums of refractive index, the refractive index of medium 2 (25) that requires to be positioned at the below is greater than the refractive index of the medium 1 (24) of top, and this two media is with immiscible even suspension.Light path shows that also being furnished with light path on the container (22) shows container cover (23), and black is made in the inboard, when the light directive it the time can all be absorbed, in order to avoid the light reflected back into medium influences light path.Light path shows that container (22) is installed on the fulcrum arrangement.
Fulcrum arrangement has support plate (9) and laser pen right angle rack (12), adopts metal material to make.Laser pen right angle rack (12) is welded on the left side of support plate (9).The container baffle plate (10) that container fixed screw (11) is housed is welded on the support plate (9); Rubber washer is equipped with in container baffle plate (10) inboard; Laser pen rotation axis (13) is installed on the surface level of laser pen right angle rack (12), is positioned at light path demonstration container (22) just and is dug up cylindrical central shaft position, 1/4 cylinder place, promptly the post heart with 1/4 cylinder place cylinder overlaps.Sheet metal at place, laser pen rotation axis (13) two ends horizontal component is installed 4 laser pen rotation axis adjusting screw (14) up and down respectively, is used for regulating laser pen rotation axis (13).And go up welding laser pen sleeve pipe hold-down nut (19) at laser pen rotation axis (13), be used to demonstrate the experiment that can change incident angle when laser pen is fixed in this moment, as reflection, refraction and total reflection etc.; Laser pen sleeve pipe hold-down nut (21) also is housed on the vertical plate of laser pen right angle rack (12), is used to demonstrate the experiment that need not to change incident angle, as the convergence of the rectilinear propagation of light, lens and disperse function etc. when laser pen is fixed in this moment.
As shown in Figure 2, the laser pen regulating device comprises laser pen sleeve pipe (15), laser pen switch screw (17), laser pen elevation angle adjusting screw (18), post lens (20); The laser pen sleeve pipe is shaped on the thread that is used to install on (15), and laser pen sleeve pipe (15) is by thread, screws in the corresponding laser pen sleeve pipe hold-down nut in (19) or (21) according to requirement of experiment.Laser pen sleeve pipe (15) is used for inserting laser pen (16).
Post lens (20) are equipped with on laser pen sleeve pipe (15) one top; The other end is equipped with 4 laser pen elevation angle adjusting screw (18), is used for the fine setting of laser pen (16); 1 laser pen switch screw (17) also is installed, is used for controlling the switch of laser pen (16).Near in the sleeve pipe of post lens (20) one ends rubber washer is housed, laser pen (16) inserts and the overhead rubber washer from the other end (afterbody) of laser pen sleeve pipe (15), make the light beam of laser pen (16) form sectored light, be more conducive to the observation of experimental phenomena through post lens (20).
This demonstration device is that the ruby laser (being called laser pen herein) of 1mW is a light source with the little output power of volume.
Embodiment 2
As shown in Figure 1, the fulcrum arrangement of this instrument can also be that triangular supporting frame (2) is installed below support plate (9).Three pin of triangular supporting frame (2) are welded on respectively on the small cubes, and sucker (1) is connected with three pin of triangular supporting frame (2) respectively by set and locking screw.
Level meter (27) also is housed, with level meter check support plate level whether on support plate (9); The angel measuring instrument of being made by transparent material (26) is installed in the dead ahead that shows container (22) in light path, come the size of related angle in the experiments of measuring, and angel measuring instrument (26) shows that in light path the dead ahead of container (22) is transportable, and all the other are with embodiment 1.
Embodiment 3
The best scheme of the utility model be between triangular supporting frame (2) and support plate (9), increase can make light path show container do level or vertically move horizontally rotate parts and vertical moving-member: horizontally rotate parts and comprise horizontal rotating shaft (3), horizontal rotating shaft lock screw (4); Vertically moving-member comprises vertical rotation axis (5), vertical rotation axis sleeve pipe (6), vertical rotation axis lock screw (7), vertical bracing frame (8).
Cut out a columniform small cubes in the middle of the main part of triangular supporting frame (2), horizontal rotating shaft (3) inserts in the columniform small cubes just, and is rotary right cylinder (movingly); Horizontal rotating shaft lock screw (4) is housed, when horizontal rotating shaft (3) is locked it when being transferred to the appropriate location on the side of triangular supporting frame main body; Above it, be welded with a vertical rotation axis sleeve pipe (6), be enclosed within outside the vertical rotation axis (5); Vertically rotation axis lock screw (7) penetrates vertical rotation axis sleeve pipe (6) and is used for vertical rotation axis (5) and when being transferred to the appropriate location it is locked; Support plate (9) is connected by vertical bracing frame (8) with vertical rotation axis (5), and all the other are with embodiment 2.
The utility model is fixed on the experiment table by the sucker of tight-spiral with lock, regulates vertical rotation axis lock screw (7) then, utilizes vertical rotation axis (5) that support plate is carried out horizontal adjustment, with level meter check support plate level whether; The light path that two media is housed is shown that container (22) is placed on the support plate,, utilizes the rubber of baffle plate inboard that light path is shown that container can carry out following experiment after solid container fixed screw (11) locking:
Experiment 1. checking reflection law and refraction law, the relative index of refraction of calculating two media
Laser pen is inserted the laser pen sleeve pipe, utilize laser pen sleeve pipe hold-down nut (19) that the laser pen regulating device is fixed on the laser pen rotation axis (13), a rotary laser switch screw (17) is opened laser pen, the light that laser pen sends can form the covering of the fan light beam through the post lens, regulate laser pen rotation axis adjusting screw (14) and laser pen adjusting screw (18) laser pen is regulated, make the covering of the fan light beam show the radially incident of container lower left 1/4 cylinder along light path.
Reflection and refraction take place in the interphase at medium 1 and medium 2, can observe the light path of these phenomenons; By can change the angle of incident light to the adjusting of laser pen rotation axis, observe reflection angle and refraction angle situation of change with incident angle, and utilize angel measuring instrument to measure the size of all angles, and verify reflection law and refraction law, can also calculate the relative index of refraction of two media.
The total reflection phenomenon of experiment 2. checking light
Experimental implementation is 1 identical with experiment, when laser pen forwards a certain angle to, at the interphase of medium 1 and medium 2 total reflection phenomenon can take place, and the light path of its demonstration is high-visible.
Test 3. light light path along rectilinear propagation in same uniform dielectric
The laser pen sleeve pipe is screwed in the vertically laser pen sleeve pipe hold-down nut (21) of part of laser pen right angle rack, when laser pen passes through the laser pen sleeve pipe, when utilizing fixing light path in sight to show the container left surface, the covering of the fan light beam perpendicular to container side incident, can be observed light light path along rectilinear propagation in same uniform dielectric with along continuous straight runs.
4. the demonstration of lens convergence, disperse function
When the light beam along continuous straight runs of laser pen during perpendicular to container side incident, utilize some annexes as convex lens, concavees lens, the convergence of demonstration lens, the effect of dispersing, and show its light path; Lens can rack-mountly directly insert in medium.Experimental implementation is identical with experiment 3,
For the classmate who makes each position in the classroom can observe experimental phenomena clearly, can regulate horizontal rotating shaft and change the angle that light path shows container.
Claims (5)
1. the light propagation law demonstration device that can show light path is characterized in that it comprises: fulcrum arrangement, light path demonstration container, laser pen rotation axis, laser pen sleeve pipe hold-down nut, laser pen regulating device, laser pen;
The light path that is installed on the fulcrum arrangement shows that container is that the lower left is cut out 1/4 columniform transparent cube, be equipped with in it two kinds immiscible, can show light path and the different propagation medium of refractive index;
Fulcrum arrangement comprises support plate and laser pen right angle rack; Connect the laser pen right angle rack at the support plate left end, the laser pen rotation axis is installed on the surface level of laser pen right angle rack, and on the laser pen rotation axis, weld laser pen sleeve pipe hold-down nut; Laser pen sleeve pipe hold-down nut also is housed on the vertical plate of laser pen right angle rack;
Laser pen screws in the corresponding laser pen sleeve pipe hold-down nut according to requirement of experiment by the laser pen regulating device.
2. the light propagation law demonstration device that can show light path according to claim 1 is characterized in that described laser pen regulating device comprises laser pen sleeve pipe, laser pen switch screw, laser pen elevation angle adjusting screw, post lens; The post lens are equipped with on laser pen sleeve pipe one top, and the other end is installed laser pen elevation angle adjusting screw, laser pen switch screw successively.
3. the light propagation law demonstration device that can show light path according to claim 2 is characterized in that described fulcrum arrangement is the triangular supporting frame that increases tight-spiral sucker with lock under support plate.
4. the light propagation law demonstration device that can show light path according to claim 3, it is characterized in that between triangular supporting frame and support plate increasing can make light path show container do level and vertically rotate horizontally rotate parts and vertical rotatable parts; Horizontally rotate parts and comprise horizontal rotating shaft, horizontal rotating shaft lock screw; Vertically moving-member comprises vertical rotation axis, vertical rotation axis sleeve pipe, vertical rotation axis lock screw and vertical bearing support.
5. the light propagation law demonstration device that can show light path according to claim 4 is characterized in that: level meter is installed on support plate; Light path shows setting angle measuring instrument on the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026685 CN2828981Y (en) | 2005-07-15 | 2005-07-15 | Optical propagation law demonstrater capable of displaying light path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026685 CN2828981Y (en) | 2005-07-15 | 2005-07-15 | Optical propagation law demonstrater capable of displaying light path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828981Y true CN2828981Y (en) | 2006-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520026685 Expired - Fee Related CN2828981Y (en) | 2005-07-15 | 2005-07-15 | Optical propagation law demonstrater capable of displaying light path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828981Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467846A (en) * | 2011-05-22 | 2012-05-23 | 杨兆民 | Measuring device for medium refractive index |
| CN109903659A (en) * | 2019-03-17 | 2019-06-18 | 南京科技职业学院 | The device of refractive index demonstration optics catadioptric law can be measured on blackboard |
| CN112435545A (en) * | 2020-11-25 | 2021-03-02 | 南开大学 | Cavity type black body radiation demonstration instrument |
| CN114360348A (en) * | 2022-03-01 | 2022-04-15 | 福建省同安第一中学 | Three-dimensional light path experiment demonstration method |
-
2005
- 2005-07-15 CN CN 200520026685 patent/CN2828981Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467846A (en) * | 2011-05-22 | 2012-05-23 | 杨兆民 | Measuring device for medium refractive index |
| CN109903659A (en) * | 2019-03-17 | 2019-06-18 | 南京科技职业学院 | The device of refractive index demonstration optics catadioptric law can be measured on blackboard |
| CN112435545A (en) * | 2020-11-25 | 2021-03-02 | 南开大学 | Cavity type black body radiation demonstration instrument |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |