CN204720072U - geometrical optics experiment auxiliary screen - Google Patents
geometrical optics experiment auxiliary screen Download PDFInfo
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- CN204720072U CN204720072U CN201520463868.5U CN201520463868U CN204720072U CN 204720072 U CN204720072 U CN 204720072U CN 201520463868 U CN201520463868 U CN 201520463868U CN 204720072 U CN204720072 U CN 204720072U
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- screen
- diaphragm
- geometrical optics
- lens
- level crossing
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Abstract
The utility model discloses a kind of geometrical optics experiment auxiliary screen, comprise diaphragm screen and combination picture screen, diaphragm screen middle part is provided with the adjustable diaphragm in aperture, camera is provided with directly over diaphragm, the one side of combination picture screen is picture screen, another side vertically connects a cylindrical T-Ring, and T-Ring end face is provided with level crossing, and the minute surface of level crossing shields parallel with picture.The utility model is conducive to increasing lens imaging experiment content, improves geometrical optics experiment effect further.
Description
Technical field
The utility model relates to a kind of Experiments of Optics apparatus, is specially a kind of geometrical optics experiment auxiliary screen.
Background technology
Lens imaging experiment is basic Experiments of Optics, and under paraxial rays condition, lens image formation rule obeys Gauss formula.Lens imaging experiment is measured the focal length of lens, is observed lens imaging feature by building multiple light path, checking lens image formation rule, is conducive to deepening the understanding to optical device image-forming principles such as camera, telescope, microscopes.
The people being familiar with photography knows, aperture size affect the depth of field and the imaging effect of camera imaging, but during current lens imaging tests, and lacks Germicidal efficacy and research that diaphragm affects the depth of field.When surveying the focal length of lens with autocollimation method, with plane mirror, the light reflection after lens is gone back to thing screen place and carry out autocollimation observation, because slide optical bench guide rail plugging lens and level crossing has one fixed width, make level crossing cannot near lens, cause reflected light more weak, image quality is poor, brings difficulty to the observation of reflection image.In addition, when teacher demonstrates lens imaging experiment on classroom, because picture screen is vertical with imaging optical path, student, while seeing imaging optical path clearly, is difficult to the situation seeing the upper imaging of picture screen clearly.
Summary of the invention
The purpose of this utility model is to provide a kind of geometrical optics experiment auxiliary screen being conducive to improving lens imaging experiment effect.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: geometrical optics experiment auxiliary screen, comprises diaphragm screen and combination picture screen; Diaphragm screen middle part is provided with the adjustable diaphragm in aperture, is provided with the camera for capture lens imaging directly over diaphragm; The one side of combination picture screen is the picture screen for accepting lens imaging, and combination picture screen another side vertically connects a cylindrical T-Ring, and T-Ring end face is provided with level crossing, and the minute surface of level crossing shields parallel with picture.
Described camera is micro radio camera.
The utility model, owing to adopting above-mentioned design, can produce following beneficial effect: the setting of diaphragm screen can limit imaging beam, meets the imaging requirements of paraxial rays; Change the size of the aperture of the diaphragm, can the change of the Synchronous depth of field and imaging effect; Utilize camera capture lens imaging, can clear display on the display device of peripheral hardware, be convenient to experimental demonstration and observation.The level crossing of combination picture screen projection is arranged, and is convenient to survey in focal length of lens experiment at autocollimation method make level crossing near lens, can strengthen reflected light, improves image quality.The utility model is conducive to increasing lens imaging experiment content, improves geometrical optics experiment effect further.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the formation schematic diagram of diaphragm screen.
Fig. 2 is the three-view diagram of combination picture screen.
Fig. 3 is the schematic diagram that the utility model is tested for lens imaging.
Fig. 4 is that the utility model surveys focal length of lens experiment schematic diagram for autocollimation method.
In figure: 1. diaphragm screen, 2. combination picture screen, 3. light source, 4. thing screen, 5. lens, 6. slide, 7. optical bench guide rail, 11. diaphragms, 12. cameras, 13. adjuster bars, 21. picture screens, 22. level crossings, 23. T-Rings, 123. poles.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, be provided with diaphragm 11 in the middle part of diaphragm screen 1, adjuster bar 13, for regulating the pore size of diaphragm 11, diaphragm screen 1 is provided with camera 12 directly over diaphragm 11.Camera 12 is micro radio camera.
As shown in Figure 2, the one side of combination picture screen 2 is picture screen 21, for accepting lens imaging; The another side of combination picture screen 2 vertically connects a cylindrical T-Ring 23, and T-Ring 23 end face is provided with level crossing 22, and the minute surface of level crossing 22 is parallel with as shielding 21.
The below of diaphragm screen 1 and combination picture screen 2 is respectively equipped with pole 123, so that on grafting slide 6 in figure 3.
As shown in Figure 3, light source 3, thing screen 4, lens 5, diaphragm screen 1, combination picture screen 2 successively activity are located on optical bench guide rail 7.Stir adjuster bar 13, regulate the pore size of diaphragm 11 on diaphragm screen 1, the Synchronous depth of field changes.Camera 12 shields lens 5 imaging on 1 rear picture screen 21 for taking diaphragm.
As shown in Figure 4, survey in focal length of lens experiment with autocollimation method, combination picture screen 2 is placed in lens 5 rear, and lens 5 are close to by level crossing 22, the light reflection through lens 5 is returned imaging on thing screen 4.
Claims (2)
1. a geometrical optics experiment auxiliary screen, is characterized in that: comprise diaphragm screen (1) and combination picture screen (2); Diaphragm screen (1) middle part is provided with the adjustable diaphragm in aperture (11), is provided with camera (12) directly over diaphragm (11); The one side of combination picture screen (2) is picture screen (21) for accepting lens imaging, combination picture screen (2) another side vertically connects a cylindrical T-Ring (23), T-Ring (23) end face is provided with level crossing (22), and it is parallel that the minute surface of level crossing (22) and picture shield (21).
2. geometrical optics experiment auxiliary screen according to claim 1, is characterized in that: described camera (12) is micro radio camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520463868.5U CN204720072U (en) | 2015-07-01 | 2015-07-01 | geometrical optics experiment auxiliary screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520463868.5U CN204720072U (en) | 2015-07-01 | 2015-07-01 | geometrical optics experiment auxiliary screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720072U true CN204720072U (en) | 2015-10-21 |
Family
ID=54319048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520463868.5U Expired - Fee Related CN204720072U (en) | 2015-07-01 | 2015-07-01 | geometrical optics experiment auxiliary screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882055A (en) * | 2015-07-01 | 2015-09-02 | 江南大学 | Auxiliary screen for lens imaging experiment |
-
2015
- 2015-07-01 CN CN201520463868.5U patent/CN204720072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882055A (en) * | 2015-07-01 | 2015-09-02 | 江南大学 | Auxiliary screen for lens imaging experiment |
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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: 20151021 Termination date: 20160701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |