CN202887575U - Adjustable type optical imaging demonstrator - Google Patents
Adjustable type optical imaging demonstrator Download PDFInfo
- Publication number
- CN202887575U CN202887575U CN 201220627668 CN201220627668U CN202887575U CN 202887575 U CN202887575 U CN 202887575U CN 201220627668 CN201220627668 CN 201220627668 CN 201220627668 U CN201220627668 U CN 201220627668U CN 202887575 U CN202887575 U CN 202887575U
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- optical imaging
- demonstrator
- adjusting
- image
- small hole
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Abstract
The utility model discloses an adjustable type optical imaging demonstrator which consists of a zooming lens, an image photographing head and a view window, wherein the zooming lens is formed by more than one sections of adjusting barrels which are mutually matched and sleeved at intervals; the image photographing head and an inserting groove of an image are arranged at the front end of the first section; the view window is arranged at the rear end of a tail end adjusting barrel; and a video screen is fixedly arranged on the cross section inside the barrel. The video screen is a half-permeable film. The adjustable type optical imaging demonstrator is a learning tool for researching the small hole imaging principle in physics; an article is projected on a semitransparent screen through a pin hole or a lens, the zooming lens is additionally arranged, and the focal length can be adjusted by adjusting the distance of the adjusting barrel on the zooming lens, so that the size of the imaged article is changed, the defect that the length of a camera obscura of the original small hole imaging demonstrator cannot be adjusted is solved, the small hole imaging demonstrator is more beneficial for adjusting the size of the image, and learning, observation and research on physical problems related to the small hole imaging are facilitated.
Description
Technical field
The utility model belongs to demonstrator, is specifically related to a kind of adjustable optical imaging demonstration instrument.
Background technology
In physics teaching, the pinhole imaging system demonstrator has become the research requisite teaching of pinhole imaging system problem and schooling apparatus.The pinhole imaging system demonstrator is the principle of utilizing pinhole imaging system in the physics, object is thrown picture on translucent screen by aperture, thereby reach the effect of object being demonstrated into picture, is convenient to study research.Although existing pinhole imaging system demonstrator can satisfy simple object imaging research, because the length in darkroom is fixing, can not regulate the image distance size, be not easy to adjust the size of imaging object, for the research imaging object is made troubles.
Summary of the invention
For the problems referred to above, the utility model provides a kind of adjustable optical imaging demonstration instrument, can be by regulating the length of zoom cylinder, change the distance of camera bellows, thereby regulate size apart, be convenient to the size that demonstrator is adjusted imaging object, be conducive to observational learning and research.
Adjustable optical imaging demonstration instrument of the present utility model, to be consisted of by zoom cylinder, image absorption head and video window, described zoom cylinder is to consist of by the above mutual gap of the adjustment barrel engage sleeves of a joint is folded, and the front end of first segment is image absorption head and the insertion groove that is provided with shot film; The rear end of terminal adjustment barrel is that the cross section is fixed with video screen in video window, this cylinder.
As further improvement of the utility model, described video screen is semi-permeable diaphragm.
As further improvement of the utility model, described shot film is orifice plate.
As further improvement of the utility model, described shot film is eyeglass.
Adjustable optical imaging demonstration instrument of the present utility model, it is a kind of schooling apparatus of pinhole imaging system principle in the research physics, object is thrown picture on translucent screen by aperture or lens, and increased the zoom cylinder, can be by regulating the distance of the adjustment barrel on the zoom cylinder, change focal length, thereby change the size of imaging object, solve original pinhole imaging system demonstrator and can not adjust the defective of camera bellows length, so that the pinhole imaging system demonstrator more is conducive to be adjusted to the size of picture, be conducive to learn, observe some physical problems relevant with pinhole imaging system with research.The utility model is simple in structure, and is easy and simple to handle, and small and exquisite production cost is low, can large batch of production and processing.
Description of drawings
Fig. 1 is the utility model adjustable optical imaging demonstration instrument structural representation;
Fig. 2 is the sectional view of the utility model adjustable optical imaging demonstration instrument.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Adjustable optical imaging demonstration instrument of the present utility model, be by zoom cylinder 1, image take in 2 and video window 3 consist of, described zoom cylinder 1 consists of by the above adjustment barrel 4 mutual gap engage sleeves of a joint are folded, the front end of first segment is that image takes in 2 and be provided with the insertion groove 5 of orifice plate, and is porose at the center of orifice plate.The rear end of terminal adjustment barrel 4 is that the cross section is fixed with video screen 6 in video window 3, this cylinder, and described video screen 6 is semi-permeable diaphragm.
Adjustable optical imaging demonstration instrument of the present utility model, be by zoom cylinder 1, image take in 2 and video window 3 consist of, described zoom cylinder 1 consists of by the above adjustment barrel 4 mutual gap engage sleeves of a joint are folded, and the front end of first segment is image absorption 2 and the insertion groove 5 that is provided with eyeglass; The rear end of terminal adjustment barrel 4 is that the cross section is fixed with video screen 6 in video window 3, this cylinder, and described video screen 6 is semi-permeable diaphragm.
Adjustable optical imaging demonstration instrument of the present utility model, be by zoom cylinder 1, image take in 2 and projection screen 6 consist of, the front end of zoom cylinder 1 is that image takes in 2 and be provided with the insertion groove 5 of orifice plate, and the rear end is video window 3 and is fixed with video screen 6 that described projection screen 6 is semi-permeable diaphragm.
Adjustable optical imaging demonstration instrument of the present utility model is positioned over object in use image and takes in the place ahead of 2, object is by placing orifice plate or eyeglass in the insertion groove 5 that imaging is presented on the projection screen 6, and the user can be by the object on the video window 3 observation video screens.Simultaneously in use if when regulating imaging object big or small, can pull adjustment barrel 5, the length of regulating zoom cylinder 1 realizes.On orifice plate or eyeglass, can be provided with handle 7, be convenient to plug.
Claims (4)
1. adjustable optical imaging demonstration instrument, to take in head (2) and video window (3) formation by zoom cylinder (1), image, it is characterized in that zoom cylinder (1) saves the mutually folded formation of gap engage sleeves of above adjustment barrel (4) by one, the front end of first segment is image absorption head (2) and the insertion groove (5) that is provided with shot film; The rear end of terminal adjustment barrel (4) is that the cross section is fixed with video screen (6) in video window (3), this cylinder.
2. adjustable optical imaging demonstration instrument according to claim 1 is characterized in that video screen (6) is semi-permeable diaphragm.
3. adjustable optical imaging demonstration instrument according to claim 1 and 2 is characterized in that shot film is orifice plate.
4. adjustable optical imaging demonstration instrument according to claim 1 and 2 is characterized in that shot film is eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627668 CN202887575U (en) | 2012-11-26 | 2012-11-26 | Adjustable type optical imaging demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627668 CN202887575U (en) | 2012-11-26 | 2012-11-26 | Adjustable type optical imaging demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887575U true CN202887575U (en) | 2013-04-17 |
Family
ID=48078979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220627668 Expired - Fee Related CN202887575U (en) | 2012-11-26 | 2012-11-26 | Adjustable type optical imaging demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057046A (en) * | 2016-08-18 | 2016-10-26 | 张红 | Lens characteristic experiment demonstration device |
-
2012
- 2012-11-26 CN CN 201220627668 patent/CN202887575U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057046A (en) * | 2016-08-18 | 2016-10-26 | 张红 | Lens characteristic experiment demonstration device |
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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: 20130417 Termination date: 20131126 |