CN203596131U - Concave lens imaging demonstration instrument - Google Patents
Concave lens imaging demonstration instrument Download PDFInfo
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- CN203596131U CN203596131U CN201320559085.8U CN201320559085U CN203596131U CN 203596131 U CN203596131 U CN 203596131U CN 201320559085 U CN201320559085 U CN 201320559085U CN 203596131 U CN203596131 U CN 203596131U
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- concavees lens
- demonstration instrument
- demonstration
- hollow cylinders
- lens imaging
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Abstract
The utility model aims at solving a problem that there is scarcely any better demonstration instrument used for the demonstration of the imaging principle of a concave lens at present in a conventional process of the physics teaching of middle and primary schools, thereby heavily inhibiting the teaching demonstration effect. The utility model provides a concave lens imaging demonstration instrument which is used for the demonstration of the imaging principle of the concave lens. The instrument comprises a pedestal, and two hollow cylinders disposed on the pedestal. An opening at one side of each cylinder is opened, and an opening at the other side of each cylinder is provided with the concave lens. The instrument is delicate in design and employs the concave lenses in the two hollow cylinders for imaging, thereby achieving that a person shakes hands with himself or herself and vividly demonstrating the imaging principle of the concave lens. Moreover, the effect of demonstration is good and is in favor of the demonstration of physics teaching.
Description
Technical field
The utility model relates to teaching aid technical field, specifically, relates to a kind of concavees lens imaging demonstration instrument.
Background technology
Concave mirror is a kind of optical instrument that reflects the paraboloidal of making according to light, is again concave mirror.Concavees lens are also called negative globe lens, and the central authorities of eyeglass are thin, and periphery is thick, is spill, so be again concavees lens.Concavees lens have disperse function to light.Parallel rays is by after concave spherical surface lens generation deviation, and divergence of beam, becomes divergent rays, can not form reality focus, along the reverse extending line of disperse light, meet at a bit in the same side of throw light, formation be a virtual focus (concavees lens have two virtual focuses).
The imaging of concavees lens is by following principle:
When object is while being in kind, the virtual image of become upright, dwindling, as with the homonymy of thing at lens;
When object is virtual object, concavees lens are in one times of focal length time to the distance of virtual object, become real image upright, that amplify, as with the homonymy of thing at lens;
When object is virtual object, when concavees lens are one times of focal length to the distance of virtual object, image in infinite distance;
When object is virtual object, concavees lens are beyond one times of focal length in two focus length time to the distance of virtual object, the virtual image that becomes to stand upside down, amplify, as with the heteropleural of thing at lens;
When object is virtual object, when concavees lens are two focus length to the distance of virtual object, become and the onesize virtual image of object, as with the heteropleural of thing at lens;
When object is virtual object, concavees lens are beyond two focus length time to the distance of virtual object, the virtual image that becomes to stand upside down, dwindle, as with the heteropleural of thing at lens.
In middle and primary schools' physics teaching, in order to allow student can understand concavees lens image-forming principle, be preferably by specific demonstrator and impart knowledge to students, and rarely have now a kind of demonstrator that can demonstrate for concavees lens image-forming principle preferably, greatly hindered the demonstration effect of teaching.
Utility model content
The utility model is in order to solve in the process of existing middle and primary schools physics teaching, owing to rarely having now a kind of demonstrator that can demonstrate for concavees lens image-forming principle preferably, the problem that has greatly hindered the demonstration effect of teaching, provides a kind of concavees lens imaging demonstration instrument to demonstrate for concavees lens image-forming principle.
The technical matters of the required solution of the utility model, can be achieved through the following technical solutions:
A kind of concavees lens imaging demonstration instrument, it is characterized in that, comprise: base, be arranged on two hollow cylinders on base, one side opening of described two hollow cylinders opens wide, opposite side opening is provided with concavees lens, and two concavees lens are arranged on the homonymy of two hollow cylinders, and the main shaft of described two concavees lens is at same level height and not parallel.
In the utility model, the side that described two hollow cylinder openings open wide is provided with extends bucket, so that staff stretches into.
The described barrel conical bucket increasing gradually for opening that extends.
In the utility model, the described opening part that extends bucket is provided with sensor; Described sensor is infrared sensor.
In the utility model, in described two hollow cylinders, be provided with loudspeaker.
In the utility model, described base comprises base leg and be arranged on the floor installation plate on base leg, and described two hollow cylinders are arranged on floor installation plate.
The bottom of described two hollow cylinders is provided with the installation base portion being arranged on described floor installation plate, so that in the installation of two hollow cylinders.
Concavees lens imaging demonstration instrument of the present utility model, by exquisite design, utilize the concavees lens imaging arranging in two hollow cylinders, when realization oneself is shaken hands with oneself, vivo concavees lens image-forming principle is demonstrated, and demonstration successful, is conducive to the carrying out of physics teaching demonstration greatly.
Accompanying drawing explanation
Further illustrate the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make technological means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Purport of the present utility model is, by in existing middle and primary schools Physics Learning process, the analysis of the demonstration demand of concavees lens image-forming principle, find owing to rarely having now a kind of demonstrator that can demonstrate for concavees lens image-forming principle preferably, the problem that has greatly hindered the demonstration effect of teaching, provides a kind of concavees lens imaging demonstration instrument to address the above problem by the utility model.
Referring to Fig. 1, concavees lens imaging demonstration instrument of the present utility model, comprise base, other assemblies of whole concavees lens imaging demonstration instrument are installed on base, in the utility model, adopt preferably mode of one, base comprises base leg 11 and is arranged on the floor installation plate 12 on base leg 11, and other assemblies of concavees lens imaging demonstration instrument are all arranged on floor installation plate 12.
In present embodiment, floor installation plate 12 is provided with two hollow cylinders 2, one side opening 21 of two hollow cylinders 2 opens wide, opposite side opening is provided with concavees lens (not illustrated), two concavees lens are arranged on the homonymy of two hollow cylinders 2, and the main shaft of two concavees lens is at same level height and not parallel.For the ease of in the installation of two hollow cylinders 2, the bottom of two hollow cylinders 2 is provided with the installation base portion 22 being arranged on floor installation plate 12.
Like this, when staff is when from two hollow cylinders, any one unlimited opening stretches into, first concavees lens in this hollow cylinder form the staff virtual image upright, that dwindle in staff one side, and then also form the staff virtual image (be no matter etc. large or dwindle) at the opposite side of concavees lens, pass through again the concavees lens in another hollow cylinder by the above-mentioned virtual image, opening one side unlimited at another hollow cylinder forms the staff virtual image, there is own unique scene of shaking hands with oneself, can explain the multiple image-forming principle of concavees lens by above-mentioned demonstration.
The side that two hollow cylinder 2 openings open wide is provided with extends bucket 3, so that staff stretches into, present embodiment has adopted preferably embodiment of one, extends the conical bucket that bucket 3 increases gradually for opening.The opening part that extends bucket 3 can arrange sensor (not illustrated), for example, adopt infrared sensor, when staff stretches into like this, can be detected, and by two interior loudspeaker (not illustrated) that arrange of hollow cylinder 2, can point out stretching into of staff.
The concavees lens imaging demonstration instrument of utility model, by exquisite design, utilize the concavees lens imaging arranging in two hollow cylinders, when realization oneself is shaken hands with oneself, vivo concavees lens image-forming principle is demonstrated, and demonstration successful, is conducive to the carrying out of physics teaching demonstration greatly.
Below be only described with regard to the utility model preferred embodiment, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change.In a word, all various variations of doing in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (2)
1. concavees lens imaging demonstration instrument, it is characterized in that, comprise: base, be arranged on two hollow cylinders on base, one side opening of described two hollow cylinders opens wide, opposite side opening is provided with concavees lens, and two concavees lens are arranged on the homonymy of two hollow cylinders, and the main shaft of described two concavees lens is at same level height and not parallel.
2. concavees lens imaging demonstration instrument according to claim 1, is characterized in that: the side that described two hollow cylinder openings open wide is provided with extends bucket.
3. concavees lens imaging demonstration instrument according to claim 2, is characterized in that: the described barrel conical bucket increasing gradually for opening that extends.
4. according to the concavees lens imaging demonstration instrument described in claim 2 or 3, it is characterized in that: the described opening part that extends bucket is provided with sensor.
5. concavees lens imaging demonstration instrument according to claim 4, is characterized in that: described sensor is infrared sensor.
6. concavees lens imaging demonstration instrument according to claim 4, is characterized in that: in described two hollow cylinders, be provided with loudspeaker.
7. concavees lens imaging demonstration instrument according to claim 1, is characterized in that: described base comprises base leg and be arranged on the floor installation plate on base leg, and described two hollow cylinders are arranged on floor installation plate.
8. concavees lens imaging demonstration instrument according to claim 7, is characterized in that: the bottom of described two hollow cylinders is provided with the installation base portion being arranged on described floor installation plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320559085.8U CN203596131U (en) | 2013-09-10 | 2013-09-10 | Concave lens imaging demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320559085.8U CN203596131U (en) | 2013-09-10 | 2013-09-10 | Concave lens imaging demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596131U true CN203596131U (en) | 2014-05-14 |
Family
ID=50676997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320559085.8U Expired - Fee Related CN203596131U (en) | 2013-09-10 | 2013-09-10 | Concave lens imaging demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203596131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023491A (en) * | 2015-07-03 | 2015-11-04 | 长春中国光学科学技术馆 | Demonstrator for handshake with oneself based on 3D technology |
-
2013
- 2013-09-10 CN CN201320559085.8U patent/CN203596131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023491A (en) * | 2015-07-03 | 2015-11-04 | 长春中国光学科学技术馆 | Demonstrator for handshake with oneself based on 3D technology |
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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 |
Granted publication date: 20140514 Termination date: 20160910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |