CN102455498B - Adjustable dark focal lens - Google Patents
Adjustable dark focal lens Download PDFInfo
- Publication number
- CN102455498B CN102455498B CN201010524642.3A CN201010524642A CN102455498B CN 102455498 B CN102455498 B CN 102455498B CN 201010524642 A CN201010524642 A CN 201010524642A CN 102455498 B CN102455498 B CN 102455498B
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- China
- Prior art keywords
- glass piece
- microscope base
- glass block
- slip
- dark
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Abstract
The invention relates to an adjustable dark focal lens which mainly comprises monochromatic parallel lights, a fixed glass block, a slidable glass block, a liquid medium, a glass baffle, an optical path difference adjusting device, a focusing device, a dark focal lens base and a viewing screen. The parallel monochromatic lights successively pass through the fixed glass block, the slidable glass block, the liquid medium, the glass baffle and a convex lens which are arranged in parallel to be focused on the viewing screen; the focusing device is adjusted at first so that the intensities of the monochromatic parallel lights of the fixed glass block and the slidable glass block are the same; then a rotating wheel is rotated to cause variation in thickness of the liquid medium corresponding to the slidable glass block so as to result in optical path change; when the optical path difference of monochromatic parallel lights of the fixed glass block and the slidable glass block is odd times of half wavelength of the monochromatic lights, the focused point is a dark point; and when the wavelength changes, a new dark focal point can be obtained through only rotating the rotating wheel to lead the optical path difference of lights of the fixed glass block and the slidable glass block to be odd times of the new wavelength.
Description
Affiliated field
The present invention relates to a kind of device that can become according to different wave length monochromatic collimated beam adjusting optically focused dim spot.
Background technology
Application number is that 2010205170006 dark burnt mirror can be focused into a dim spot monochromatic collimated beam equal two beam intensities, but it can only be effective to the light of a certain specific wavelength, if wavelength has become, just must change the transparent medium of generation optical path difference and could realize the effect that is focused into dim spot, thisly can not should use very inconvenient by freely regulated dark burnt mirror.
Summary of the invention
Regulate and apply inconvenient shortcoming in order to overcome dark burnt mirror, the present invention has designed a kind of focus lens capable of dimming, can freely regulate optical path difference for the light of different wave length, easily realizes the effect that is focused into dim spot.
Focus lens capable of dimming of the present invention, mainly by monochromatic collimated beam, fixing glass piece, slip glass piece, liquid medium, glass baffle plate, optical path difference regulating device, focalizer, dark burnt microscope base and film viewing screen composition, wherein optical path difference regulating device is made up of big or small runner, large small worm, worm gear, wrom tooth plate, worm screw erecting frame, focalizer is made up of convex lens, picture frame, rubber ring and pressure ring, monochromatic collimated beam through fixing glass piece, slip glass piece, liquid medium, glass baffle plate and convex lens arranged side by side, focuses on film viewing screen successively.The refractive index of fixing glass piece and slip glass piece is all identical with shape, liquid medium can water or any liquid higher than water refractive index, when a kind of monochromatic collimated beam is by glass piece, liquid medium and convex lens focus are to film viewing screen, first block slip glass piece light path, measure the light intensity of self-retaining glass piece with light intensity illuminometer, block again fixing glass piece light path, measure the light intensity from slip glass piece, regulate focalizer to make the monochromatic collimated beam intensity of self-retaining glass piece and slip glass piece to equate, rotate again the runner of optical path difference regulating device, worm mesh worm gear, wrom tooth plate drives the motion of slip glass piece, the liquid medium variation in thickness that slip glass piece is corresponding, cause change in optical path length, in the time carrying out two parts monochromatic collimated beam optical path difference that self-retaining glass piece is equal with slip glass bulk strength and reach the odd-multiple of this monochromatic collimated beam half-wavelength, its focus point is exactly dim spot.In the time of the wavelength shift of monochromatic collimated beam, as long as rotating wheel changes liquid medium thickness corresponding to slip glass piece, the optical path difference of two parts light, with regard to corresponding change, is focused into the adjusting of dim spot like this with regard to having realized very easily the monochromatic collimated beam of different wave length.
Beneficial effect of the present invention is not only the monochromatic collimated beam of having realized very easily different wave length and is focused into the adjusting of dim spot, and can be conversely as the surveying instrument of wavelength and medium refraction index.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing is the theory structure schematic diagram of the present invention and embodiment.
In figure, 1, monochromatic collimated beam, 2, great wheel, 3, worm screw erecting frame, 4, large worm screw, 5, scale view window, 6, wrom tooth plate, 7, little runner, 8, small worm, 9, worm gear, 10, scale, 11, screw, 12, slip glass piece, 13, fixing glass piece, 14, liquid medium, 15, convex lens, 16, rubber ring, 17, pressure ring, 18, picture frame, 19, dark burnt microscope base, 20, film viewing screen, 21, glass baffle plate.
Embodiment
In the drawings, fixing glass piece (13) and slip glass piece (12) are listed in the rectangular groove of dark burnt microscope base (19), fixing glass piece (13) is fixed on the interior side of rectangular groove of dark burnt microscope base (19) by seccotine 502, slip glass piece (12) is unfixing, the refractive index of fixing glass piece (13) and slip glass piece (12) is all identical with shape, surface of contact between slip glass piece (12) and fixing glass piece (13) and the rectangular groove of dark burnt microscope base (19) had both been answered the smooth no leakage of also answering, glass baffle plate (21) is close to the mesopore face of dark burnt microscope base (19) and is fixed by seccotine 502, liquid medium (14) can water or any liquid higher than water refractive index, be filled in fixing glass piece (13), slip glass piece (12), in the groove that the bottom surface of glass baffle plate (21) and dark burnt microscope base (19) and side form, convex lens (15), picture frame (18), rubber ring (16) and pressure ring (17) composition focalizer, be arranged in the cylinder of dark burnt microscope base (19) and regulated fixing by 4 screws (11), wrom tooth plate (6), large worm screw (4), great wheel (2), scale (10), little runner (7), small worm (8), worm gear (9) and worm screw erecting frame (3) composition optical path difference regulating device, wrom tooth plate (6) is bonded on slip glass piece (9) by seccotine 502, wrom tooth and worm mesh, worm screw erecting frame (3) is arranged on dark burnt microscope base (19) outside, little runner (7) drives worm gear (9) by small worm (8), large worm screw (4), great wheel (2) rotates, large worm screw (4) drives slip glass piece (12) motion by wrom tooth plate (6) again, size runner girth is all divided into 100 equal portions, little runner often circles, great wheel turns 1/100 week, great wheel often circles, slip glass piece moves 1mm, scale (10) is arranged on dark burnt microscope base (19) upper surface, on wrom tooth plate (6), have a scale view window (5), monochromatic collimated beam (1) is successively through fixing glass piece (13) arranged side by side, slip glass piece (12), liquid medium (14), glass baffle plate (21) and convex lens (15), focus on film viewing screen (20), film viewing screen (20) is positioned on the focal plane, the side of elephant of convex lens (15).
Claims (1)
1. a focus lens capable of dimming, mainly by fixing glass piece, slip glass piece, liquid medium, glass baffle plate, optical path difference regulating device, focalizer, dark burnt microscope base and film viewing screen composition, it is characterized in that fixing glass piece and slip glass piece are listed in the rectangular groove of dark burnt microscope base, fixing glass piece is fixed on a side in the rectangular groove of dark burnt microscope base by seccotine 502, slip glass piece is unfixing, the refractive index of fixing glass piece and slip glass piece is all identical with shape, the surface of contact of the surface of contact of slip glass piece and fixing glass piece and slip glass piece and the rectangular groove of dark burnt microscope base is the smooth no leakage of going back both, glass baffle plate is close to the mesopore face of dark burnt microscope base and is fixed by seccotine 502, liquid medium water or any liquid higher than water refractive index, be filled in fixing glass piece, slip glass piece, in the groove that glass baffle plate and dark burnt microscope base form, convex lens, picture frame, rubber ring and pressure ring composition focalizer, be arranged in the cylinder of dark burnt microscope base and regulated by 4 screws fixing, wrom tooth plate, large worm screw, great wheel, scale, little runner, small worm, worm gear and worm screw erecting frame composition optical path difference regulating device, wrom tooth plate is bonded on slip glass piece by seccotine 502, wrom tooth plate and worm mesh, worm screw erecting frame is arranged on dark burnt microscope base outside, and little runner drives worm gear by small worm, large worm screw, great wheel rotates, and large worm screw drives the motion of slip glass piece by wrom tooth plate again, and scale is arranged on dark burnt microscope base, has a scale view window on wrom tooth plate, and monochromatic collimated beam is successively through fixing glass piece arranged side by side, slip glass piece, liquid medium, glass baffle plate and convex lens, focus on film viewing screen, and film viewing screen is positioned on the focal plane, the side of elephant of convex lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010524642.3A CN102455498B (en) | 2010-10-28 | 2010-10-28 | Adjustable dark focal lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010524642.3A CN102455498B (en) | 2010-10-28 | 2010-10-28 | Adjustable dark focal lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102455498A CN102455498A (en) | 2012-05-16 |
| CN102455498B true CN102455498B (en) | 2014-05-28 |
Family
ID=46038879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010524642.3A Expired - Fee Related CN102455498B (en) | 2010-10-28 | 2010-10-28 | Adjustable dark focal lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102455498B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155334A (en) * | 1994-03-17 | 1997-07-23 | 比福康光学研究和发展股份有限公司 | Zoned lends |
| CN1246925A (en) * | 1996-02-09 | 2000-03-08 | 康宁股份有限公司 | Multipath interference light filter |
| CN201845124U (en) * | 2010-10-28 | 2011-05-25 | 四川大学 | Focus lens capable of dimming |
-
2010
- 2010-10-28 CN CN201010524642.3A patent/CN102455498B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155334A (en) * | 1994-03-17 | 1997-07-23 | 比福康光学研究和发展股份有限公司 | Zoned lends |
| CN1246925A (en) * | 1996-02-09 | 2000-03-08 | 康宁股份有限公司 | Multipath interference light filter |
| CN201845124U (en) * | 2010-10-28 | 2011-05-25 | 四川大学 | Focus lens capable of dimming |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102455498A (en) | 2012-05-16 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20140528 Termination date: 20141028 |
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| EXPY | Termination of patent right or utility model |