CN201681525U - Experimental instrument for displaying convex lens imaging rule - Google Patents
Experimental instrument for displaying convex lens imaging rule Download PDFInfo
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- CN201681525U CN201681525U CN2010200377096U CN201020037709U CN201681525U CN 201681525 U CN201681525 U CN 201681525U CN 2010200377096 U CN2010200377096 U CN 2010200377096U CN 201020037709 U CN201020037709 U CN 201020037709U CN 201681525 U CN201681525 U CN 201681525U
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- convex lens
- optical
- optical bench
- light source
- source arrangement
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Abstract
The utility model discloses an experimental instrument for displaying convex lens imaging rule, which belongs to an optical experimental instrument. A ruler is adhered to an optical bench. An optical screen and a convex lens are arranged on the optical bench. A light source arrangement plate, the convex lens and the optical screen respectively slide on the optical bench. The distance among the optical bench, the convex lens and the optical screen is adjusted. The light source arrangement plate is also arranged on the optical bench. A light-emitting body consisting of a plurality of light-emitting diodes is fixed on the light source arrangement plate. The light-emitting diodes are arranged in the fixed shape and connected in parallel. The positive and negative electrodes of the light-emitting body are connected with power supply through wires. As the scales of the optical bench are improved, the zero scale value is arranged on the convex lens and the object distance and the image distance can be directly read by experiment once without any calculation so as to reduce the interference factor besides the experiment. In addition, the utility model has the advantages of simple structure, convenient use and good experimental effect, and is particularly suitable for experimental demonstration and experimental display in the physical optics phenomenon.
Description
Technical field
The utility model relates to a kind of optical experiment instrument, a kind of experiment instrument that shows the convex lens imaging law of saying so more specifically.
Background technology
The convex lens imaging law shows it is one of infrastest in the optical phenomenon research, in the refraction modular learning of light, introduced this experiment in the junior physics, to deepen understanding and the grasp of student to the refraction notion of light, the traditional experimental technique of this experiment is to use the flame of lighted candle as luminophor, fixedly convex lens and optical screen on optical bench, change distance between itself and the convex lens by mobile luminophor, mobile again optical screen is looked for the position of picture, the experimental data that draws by further computing, analytic induction convex lens imaging law, but, above-mentioned experimental technique exists a lot of not enough, as the flame instability of candle, and swing with the wind easily, the light and shade and the edge variation of candle are not obvious, cause can't on optical screen, finding out sometimes the most clearly as; About the candle flame shape of its imaging, about difference not obvious, allow the student be that the understanding of " handstand " is not deep to the real image that convex lens became; Candle length in combustion process can shorten gradually in addition, and " three's " center " needs re-adjustments not at sustained height, and is both inconvenient, loses time again to make luminophor, optical screen and convex lens; Organizing the student when experimentizing, tens candles burn in the optical laboratory of sealing, the gas that paraffin burning produces is healthy influential to teachers and students, and the paraffin combustion melting drips to the optical bench of making dirty on optical bench and the desktop, its solidify remove also inconvenient; And the zero graduation value of scale is arranged on the optical bench high order end on the optical bench, once experiment, and the needs of object distance and image distance read four data, carry out twice subtraction and just can obtain a result, and conventional efficient is low.
The utility model content
The purpose of this utility model is to solve above-mentioned deficiency, provides a kind of light stability pollution-free, and need not repeatedly to calculate a kind of experiment instrument that shows the convex lens imaging law that just can draw experimental data.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
The experiment instrument of demonstration convex lens imaging law of the present utility model comprises scale, optical bench, convex lens and optical screen, and scale is attached on the optical bench, and optical screen and convex lens all are installed on the optical bench, and optical screen can move on optical bench; Convex lens are fixed on the optical bench, the light source arrangement board also is installed on the described optical bench, the light source arrangement board also can move on optical bench, be fixed with the luminophor of forming by several light emitting diodes on the light source arrangement board, light emitting diode is arranged in solid shape, and parallel with one another, and the both positive and negative polarity of luminophor is connected with power supply by lead.
Further technical scheme is: post coordinate paper on described light source arrangement board and the optical screen, luminophor is fixed on the coordinate paper on the light source arrangement board, by the coordinate paper on the optical screen can accurately observe and relatively as with the size of thing.
Further technical scheme is: described light source arrangement board is identical with coordinate paper specification on the optical screen.
Further technical scheme is again: described convex lens are installed on the optical bench, and on the scale with the position of convex lens be starting point left with indicate scale value to the right respectively.
Further technical scheme is again: described luminophor can be arranged as " F " shape, also can be arranged as "T"-shapedly, can also be arranged as " E " shape.
Further technical scheme is again: described power supply is a dry cell.
Compared with prior art, the beneficial effects of the utility model are: as luminophor, light source is compared more stable, bright, pollution-free with the flame of candle by light emitting diode, makes convex lens become the picture on optical screen more steady and audible, and the experiment visibility is big." F " or " T " that is arranged in by light emitting diode or handstand, the upright difference of " E " shape imaging are obvious, and more can help the student to understand the real image that convex lens become is " handstand ".Light emitting diode can be because of luminous shortening do not cause light source position to depart from, and " three's " center " is saved experimental period at sustained height, improves conventional efficient therefore only need once to adjust light source arrangement board, convex lens and optical screen in experimentation.Post the coordinate paper of same size on the light source arrangement board and on the optical screen, observation that can be accurate and visual and compare the size of picture and thing has had picture stable and that quantize.By improvement, zero graduation is arranged on the convex lens position in addition, makes once experiment can directly read object distance and image distance the scale label value, do not need through any computing, reduce the experiment difficulty, save experimental period, help that main energy is used for science and show.The experiment instrument of demonstration convex lens imaging law of the present utility model is simple in structure, easy to use simultaneously, can repeatedly test, and clean environment firendly.Teaching practice proves that the teacher's lecture experiment and the student that are specially adapted in the junior physics optics teaching show experiment, also are convenient to suitability for industrialized production, is easier to promote in national junior middle school physics teaching.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
Embodiment 1
As shown in Figure 1, the experiment instrument of demonstration convex lens imaging law of the present utility model, by scale 1, optical bench 2, light source arrangement board 6, convex lens 3 are formed with optical screen 4, scale 1 is attached on the optical bench 2, and optical screen 4 all is installed on the optical bench 2 with convex lens 3, again convex lens 3 are fixed on the optical bench 2, on the scale 1 with the position of convex lens 3 be starting point left with indicate scale value to the right respectively, described light source arrangement board 6 also is installed on the optical bench 2, be fixed with the luminophor of forming by several light emitting diodes 5 on the light source arrangement board 6, light emitting diode is arranged in " F " shape, also post the coordinate paper of specification of the same race on light source arrangement board 6 and the optical screen 4, luminophor 5 is fixed on the coordinate paper on the light source arrangement board 6, each light emitting diode in the luminophor 5 is also parallel with one another, and its both positive and negative polarity adopts lead to be connected with the both positive and negative polarity of dry cell batteries.
Showing convex lens imaging law when experiment, the focal length of the convex lens 3 used of experiments of measuring at first, and note.Light source arrangement board 6, convex lens 3 and optical screen 4 are installed on optical bench 2 more successively, and are adjusted that " three's " center " is at sustained height.Light source arrangement board 6 is placed on from convex lens 3 at a distance, makes object distance u＞2f, adjust the distance of optical screen 4, make light source arrangement board 6 on optical screen 4, become real image clearly to convex lens 3, observe picture size, just fall, measure object distance u and image distance v; Then light source arrangement board 6 is shifted near to convex lens 3, makes object distance u=2f, adjust the distance of optical screen 4, make light source arrangement board 6 on optical screen 4, become real image clearly to convex lens 3, observe picture size, just fall, measure object distance u and image distance v; Again light source arrangement board 6 is shifted near to convex lens 3, make object distance u (f＜u＜2f), repeat above operation, after observing and measuring between f and 2f; Continue light source arrangement board 6 is shifted to convex lens 3, make object distance u＜f, at this moment at picture that can't see " F " shape on the light source arrangement board 6 on the optical screen 4, directly see through the luminophor 5 that is arranged as " F " shape that convex lens 3 are observed on the light source arrangement boards 6 from this side of optical screen with eyes, can see the picture that the luminophor of " F " shape is 5 upright, amplify.
Embodiment 2
As shown in Figure 1, the experiment instrument of demonstration convex lens imaging law of the present utility model, the light emitting diode in luminophor 5 be arranged as "T"-shaped, all the other are all identical with embodiment 1.
Embodiment 3
As shown in Figure 1, the experiment instrument of demonstration convex lens imaging law of the present utility model, the light emitting diode in luminophor 5 are arranged as " E " shape, and all the other are all identical with embodiment 1.
Claims (6)
1. an experiment instrument that shows the convex lens imaging law comprises scale (1), optical bench (2), convex lens (3) and optical screen (4), and scale (1) is attached on the optical bench (2), and optical screen (4) all is installed on the optical bench (2) with convex lens (3); Wherein convex lens (3) are fixed on the optical bench (2), it is characterized in that: light source arrangement board (6) also is installed on the described optical bench (2), be fixed with the luminophor of forming by several light emitting diodes (5) on the light source arrangement board (6), light emitting diode is arranged in solid shape, and parallel with one another, and the both positive and negative polarity of luminophor (5) is connected with power supply by lead.
2. the experiment instrument of demonstration convex lens imaging law according to claim 1 is characterized in that: post coordinate paper on described light source arrangement board (6) and the optical screen (4), luminophor (5) is fixed on the coordinate paper on the light source arrangement board (6).
3. the experiment instrument of demonstration convex lens imaging law according to claim 2 is characterized in that: described light source arrangement board (6) is identical with coordinate paper specification on the optical screen (4).
4. the experiment instrument of demonstration convex lens imaging law according to claim 1 is characterized in that: described convex lens (3) are installed on the optical bench (2), and scale (1) go up position with convex lens (3) be starting point left with indicate scale value to the right respectively.
5. the experiment instrument of demonstration convex lens imaging law according to claim 1 is characterized in that: described luminophor (5) can be arranged as " F " shape or "T"-shaped or " E " shape.
6. the experiment instrument of demonstration convex lens imaging law according to claim 1 is characterized in that: described power supply is a dry cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200377096U CN201681525U (en) | 2010-01-14 | 2010-01-14 | Experimental instrument for displaying convex lens imaging rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200377096U CN201681525U (en) | 2010-01-14 | 2010-01-14 | Experimental instrument for displaying convex lens imaging rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681525U true CN201681525U (en) | 2010-12-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200377096U Expired - Fee Related CN201681525U (en) | 2010-01-14 | 2010-01-14 | Experimental instrument for displaying convex lens imaging rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681525U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306470A (en) * | 2011-08-23 | 2012-01-04 | 安吉县天荒坪镇中学 | Optical bench |
| CN102708741A (en) * | 2012-06-21 | 2012-10-03 | 成都经济技术开发区实验高级中学校 | Lens imaging light source and device thereof |
| CN106409093A (en) * | 2016-10-28 | 2017-02-15 | 刘子韵 | Experimental lens group for physics teaching |
| CN106683548A (en) * | 2017-03-05 | 2017-05-17 | 苗路成 | Multifunctional teaching optical bench light source and light screen |
| CN108597332A (en) * | 2018-06-14 | 2018-09-28 | 黄永怀 | A kind of convex lens experimental provision |
| CN109389892A (en) * | 2018-03-13 | 2019-02-26 | 信阳师范学院 | A kind of physics teaching optical instrument |
| CN111899615A (en) * | 2019-05-06 | 2020-11-06 | 杭州海康威视数字技术股份有限公司 | Scoring method, device, equipment and storage medium for experiment |
-
2010
- 2010-01-14 CN CN2010200377096U patent/CN201681525U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306470A (en) * | 2011-08-23 | 2012-01-04 | 安吉县天荒坪镇中学 | Optical bench |
| CN102708741A (en) * | 2012-06-21 | 2012-10-03 | 成都经济技术开发区实验高级中学校 | Lens imaging light source and device thereof |
| CN106409093A (en) * | 2016-10-28 | 2017-02-15 | 刘子韵 | Experimental lens group for physics teaching |
| CN106683548A (en) * | 2017-03-05 | 2017-05-17 | 苗路成 | Multifunctional teaching optical bench light source and light screen |
| CN109389892A (en) * | 2018-03-13 | 2019-02-26 | 信阳师范学院 | A kind of physics teaching optical instrument |
| CN108597332A (en) * | 2018-06-14 | 2018-09-28 | 黄永怀 | A kind of convex lens experimental provision |
| CN111899615A (en) * | 2019-05-06 | 2020-11-06 | 杭州海康威视数字技术股份有限公司 | Scoring method, device, equipment and storage medium for experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20140114 |