CN105404016A - Laser collimator double focal plane conjugate adjusting method and device - Google Patents
Laser collimator double focal plane conjugate adjusting method and device Download PDFInfo
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- CN105404016A CN105404016A CN201510958211.0A CN201510958211A CN105404016A CN 105404016 A CN105404016 A CN 105404016A CN 201510958211 A CN201510958211 A CN 201510958211A CN 105404016 A CN105404016 A CN 105404016A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003384 imaging method Methods 0.000 claims description 34
- 230000021615 conjugation Effects 0.000 claims description 25
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The invention discloses a laser collimator double-focal-plane conjugate adjusting method and device, wherein the adjusting device comprises a first point source, a second point source, a cross reticle, a beam splitter prism, a first microscope, a second microscope and a third microscope; the beam splitting prism is a 45-degree beam splitting prism and is provided with a first focal surface and a second focal surface; the first point source is placed on the first focal plane, the first focal plane and the first microscope are respectively positioned on two sides of the beam splitter prism, the second microscope and the third microscope are respectively positioned on two sides of the beam splitter prism, and a connecting line of the second microscope and the third microscope is vertical to a connecting line of the first point source and the first microscope; the second focal plane is positioned between the third microscope and the beam splitter prism; the second point source is placed on the object plane of the second microscope; the cross reticle is placed on the second focal plane; the invention adopts the conjugate double focal planes, and the focal plane of the laser collimator is conveniently determined.
Description
Technical field
The present invention relates to a kind of conjugation method of adjustment and adjusting gear of laser parallel light pipe bifocal segment.
Background technology
Laser parallel light pipe is a kind of basic fiducial tool in laser system, in order to easy to use, often be provided with two focal planes, one is launch focal plane, and one is accept focal plane, two focal plane conjugation and the true focal plane being positioned at parallel light tube is the basic demand that it uses, how two focal planes being adjusted to its conjugate position during apparatus installation is the key issue needing to solve, and usual method adopts focal plane and light pipe jointly to adjust, and regulation time is long, adjustment is inconvenient, and poor repeatability.
Summary of the invention
The present invention proposes a kind of method of adjustment of laser parallel light pipe bifocal segment conjugation, can high precision, realize fast bifocal segment conjugation adjustment.
The present invention is in order to solve the adjustment of laser parallel light pipe bifocal segment, and the method for employing focal plane benchmark transfer+micro-amplification imaging, can realize bifocal segment conjugation and focal surface of collimator tube is determined.
For solving above technical matters, the present invention provides following technical scheme:
First technical scheme of the present invention:
Laser parallel light pipe bifocal segment conjugation method of adjustment, its special character is,
Comprise Amici prism, the first microscope, the second microscope and the 3rd microscope; Described Amici prism is 45 degree of Amici prisms, has two focal planes, is respectively the first focal plane and the second focal plane; First focal plane and the first microscope lay respectively at the both sides of Amici prism, and the second microscope, Amici prism and the 3rd microscope set gradually, and the second focal plane is the 3rd between microscope and Amici prism;
Concrete method of adjustment comprises the following steps:
1) the first point source is inserted Amici prism first focal plane place; Wherein, the first point source is laser point source, and the second microscope is vertical with the first microscopical line with the first point source with the 3rd microscopical line;
2) adopt the first microscope by the first point source blur-free imaging;
3) place cross-graduation plate at the second focal plane place, adjustment cross-graduation plate, the cross blur-free imaging of cross-graduation plate is overlapped in the first microscopical imaging with the first point source on the first microscope;
4) the 3rd microscope is adjusted, by the cross blur-free imaging of cross-graduation plate at the 3rd microscope;
5) on the second microscopical object plane, place the second point source, make the second point source through the second microscope blur-free imaging on the 3rd microscope and with on the 3rd microscope cross picture overlap; Wherein, the second point source is laser point source;
6) adopt CCD to replace the 3rd microscope and cross-graduation plate, the imaging surface of CCD is positioned at cross-graduation plate place;
7) adjusting CCD makes the second point source by the second microscope imaging clearly on CCD, fixation of C CD, and the conjugation forming the first point source and the CCD comprising Amici prism is overall, and confocal adjustment completes;
8) by step 7) the conjugation integral transplanting that formed is to laser parallel light pipe object lens position of focal plane, and make the laser of the first point source input to from directrix plane, CCD monitors the laser returned from directrix plane,
If CCD obtain autocollimatic return focal spot picture quality preferably time, then found the position of focal plane of laser parallel light pipe accurately, complete laser parallel light pipe bifocal segment conjugation adjustment;
Otherwise conjugation entirety is carried out all around, adjusted up and down, and it is best that the autocollimatic making CCD obtain returns focal spot picture quality.
The pixel of CCD is the smaller the better, and microscopical resolution is more high better.
Second technical scheme of the present invention:
Adopt the laser parallel light pipe that above-mentioned method of adjustment obtains.
3rd technical scheme of the present invention:
Realize the bifocal segment conjugation adjusting gear of above-mentioned method of adjustment, its special character is:
Comprise the first point source, the second point source, cross-graduation plate, Amici prism, the first microscope, the second microscope and the 3rd microscope;
Described Amici prism is 45 degree of Amici prisms, and it has the first focal plane and the second focal plane;
Described first point source is placed on the first focal plane, and the first focal plane and the first microscope lay respectively at the both sides of Amici prism,
Described second microscope and the 3rd microscope lay respectively at the both sides of Amici prism, and the second microscope is vertical with the first microscopical line with the first point source with the 3rd microscopical line;
Described second focal plane is the 3rd between microscope and Amici prism;
Described second point source is placed on the second microscopical object plane; Described cross-graduation plate is placed on the second focal plane;
The cross of the first point source and cross-graduation plate all on the first microscope blur-free imaging and imaging overlap;
Cross blur-free imaging on the 3rd microscope of described cross-graduation plate;
Described second point source to overlap with the cross picture of cross-graduation plate on the 3rd microscope on the 3rd microscope through the second microscope blur-free imaging.
Above-mentioned first point source and the second point source are all laser point sources.
The present invention has the following advantages:
1) the present invention adopts the CCD of large multiplying power microscope and small pixel size, can obtain very high conjugation Adjustment precision;
2) the present invention adopts the bifocal segment of conjugation, can determine laser parallel light pipe focal plane easily;
3) the present invention is simple and easy to implement fast, is particularly suitable for Laser Experiments room focal plane and repeatedly adjusts use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Reference numeral: 1-first microscope, 2-second microscope, 3-the 3rd microscope, 4-first focal plane, 5-second focal plane, 6-from directrix plane, 7-laser parallel light pipe object lens, 8-Amici prism, 9-cross-graduation plate, 10-first point source, 11-second point source.
Embodiment
Fig. 1 gives the structural representation of adjusting gear of the present invention, comprises Amici prism 8, the first microscope 1, second microscope 2 and the 3rd microscope 3; Amici prism is 45 degree of Amici prisms, has two focal planes, is respectively the first focal plane 4 and the second focal plane 5; First focal plane and the first microscope lay respectively at the both sides of Amici prism, and the second microscope, Amici prism and the 3rd microscope set gradually, and the second focal plane is the 3rd between microscope and Amici prism;
Concrete set-up procedure is as follows:
Concrete method of adjustment comprises the following steps:
1) the first point source is inserted Amici prism first focal plane place (structural design positioning instant can); Wherein, the first point source is laser point source, and the second microscope is vertical with the first microscopical line with the first point source with the 3rd microscopical line;
2) adopt the first microscope by the first point source blur-free imaging;
3) cross-graduation plate is placed at the second focal plane place, adjustment cross-graduation plate, by carrying out top to bottom, left and right, front and rear adjustment to cross-graduation plate, the cross blur-free imaging of cross-graduation plate to be overlapped in the first microscopical imaging with the first point source on the first microscope;
4) the 3rd microscope is adjusted, by the cross blur-free imaging of cross-graduation plate at the 3rd microscope, as benchmark;
5) on the second microscopical object plane, place the second point source, the second point source to be overlapped with the cross picture on the 3rd microscope through the second microscope blur-free imaging on the 3rd microscope; Wherein, the second point source is laser point source;
6) adopt CCD to replace the 3rd microscope and cross-graduation plate, the imaging surface of CCD is arranged in step 4) cross-graduation plate place;
7) adjusting CCD makes the second point source by the second microscope imaging clearly on CCD, fixation of C CD, and the conjugation forming the first point source and the CCD comprising Amici prism is overall, and confocal adjustment completes;
8) by step 7) the conjugation integral transplanting that formed is to laser parallel light pipe object lens position of focal plane, the laser of the first point source is made to input to from directrix plane, CCD monitors the laser returned from directrix plane, all around, up and down adjustment conjugation entirety, when the autocollimatic that CCD obtains returns focal spot picture quality best (hot spot is minimum and symmetrical), then find the position of focal plane of laser parallel light pipe accurately, complete the adjustment of laser parallel light pipe bifocal segment conjugation.
The pixel of CCD is the smaller the better, and microscopical resolution is more high better, specifically can require to determine according to Adjustment precision.
Realize the bifocal segment conjugation adjusting gear of method of adjustment of the present invention, comprise the first point source 10, second point source 11, cross-graduation plate 9, Amici prism 8, first microscope 1, second microscope 2 and the 3rd microscope 3; Amici prism is 45 degree of Amici prisms, and it has the first focal plane and the second focal plane; First point source is placed on the first focal plane, first focal plane and the first microscope lay respectively at the both sides of Amici prism, second microscope and the 3rd microscope lay respectively at the both sides of Amici prism, and the second microscope is vertical with the first microscopical line with the first point source with the 3rd microscopical line; Second focal plane is the 3rd between microscope and Amici prism;
Second point source is placed on the second microscopical object plane; Described cross-graduation plate is placed on the second focal plane; The cross of the first point source and cross-graduation plate all on the first microscope blur-free imaging and imaging overlap;
Cross blur-free imaging on the 3rd microscope of cross-graduation plate; Second point source to overlap with the cross picture of cross-graduation plate on the 3rd microscope on the 3rd microscope through the second microscope blur-free imaging.
First point source and the second point source all can adopt laser point source.
Claims (5)
1. laser parallel light pipe bifocal segment conjugation method of adjustment, is characterized in that,
Comprise Amici prism, the first microscope, the second microscope and the 3rd microscope; Described Amici prism is 45 degree of Amici prisms, has two focal planes, is respectively the first focal plane and the second focal plane; First focal plane and the first microscope lay respectively at the both sides of Amici prism, and the second microscope, Amici prism and the 3rd microscope set gradually, and the second focal plane is the 3rd between microscope and Amici prism;
Concrete method of adjustment comprises the following steps:
1) the first point source is inserted Amici prism first focal plane place; Wherein, the first point source is laser point source, and the second microscope is vertical with the first microscopical line with the first point source with the 3rd microscopical line;
2) adopt the first microscope by the first point source blur-free imaging;
3) place cross-graduation plate at the second focal plane place, adjustment cross-graduation plate, the cross blur-free imaging of cross-graduation plate is overlapped in the first microscopical imaging with the first point source on the first microscope;
4) the 3rd microscope is adjusted, by the cross blur-free imaging of cross-graduation plate at the 3rd microscope;
5) on the second microscopical object plane, place the second point source, make the second point source through the second microscope blur-free imaging on the 3rd microscope and with on the 3rd microscope cross picture overlap; Wherein, the second point source is laser point source;
6) adopt CCD to replace the 3rd microscope and cross-graduation plate, the imaging surface of CCD is positioned at cross-graduation plate place;
7) adjusting CCD makes the second point source by the second microscope imaging clearly on CCD, fixation of C CD, and the conjugation forming the first point source and the CCD comprising Amici prism is overall, and confocal adjustment completes;
8) by step 7) the conjugation integral transplanting that formed is to laser parallel light pipe object lens position of focal plane, and make the laser of the first point source input to from directrix plane, CCD monitors the laser returned from directrix plane,
If CCD obtain autocollimatic return focal spot picture quality preferably time, then found the position of focal plane of laser parallel light pipe accurately, complete laser parallel light pipe bifocal segment conjugation adjustment;
Otherwise conjugation entirety is carried out all around, adjusted up and down, and it is best that the autocollimatic making CCD obtain returns focal spot picture quality.
2. method of adjustment according to claim 1, is characterized in that, the pixel of CCD is the smaller the better, and microscopical resolution is more high better.
3. adopt the laser parallel light pipe that the method for adjustment described in claim 1 or 2 obtains.
4. realize the bifocal segment conjugation adjusting gear of the method for adjustment described in claim 1 or 2, it is characterized in that:
Comprise the first point source, the second point source, cross-graduation plate, Amici prism, the first microscope, the second microscope and the 3rd microscope;
Described Amici prism is 45 degree of Amici prisms, and it has the first focal plane and the second focal plane;
Described first point source is placed on the first focal plane, and the first focal plane and the first microscope lay respectively at the both sides of Amici prism,
Described second microscope and the 3rd microscope lay respectively at the both sides of Amici prism, and the second microscope is vertical with the first microscopical line with the first point source with the 3rd microscopical line;
Described second focal plane is the 3rd between microscope and Amici prism;
Described second point source is placed on the second microscopical object plane; Described cross-graduation plate is placed on the second focal plane;
The cross of the first point source and cross-graduation plate all on the first microscope blur-free imaging and imaging overlap;
Cross blur-free imaging on the 3rd microscope of described cross-graduation plate;
Described second point source to overlap with the cross picture of cross-graduation plate on the 3rd microscope on the 3rd microscope through the second microscope blur-free imaging.
5. adjusting gear according to claim 4, is characterized in that: described first point source and the second point source are all laser point sources.
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| CN201510958211.0A CN105404016B (en) | 2015-12-18 | 2015-12-18 | Laser collimator double focal plane conjugate adjusting method and device |
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| CN201510958211.0A CN105404016B (en) | 2015-12-18 | 2015-12-18 | Laser collimator double focal plane conjugate adjusting method and device |
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| CN105404016A true CN105404016A (en) | 2016-03-16 |
| CN105404016B CN105404016B (en) | 2017-09-29 |
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| US20080165420A1 (en) * | 2006-12-29 | 2008-07-10 | Fumitomo Yamasaki | Afocal lens, optical head, optical disk apparatus and optical information equipment |
| CN101344377A (en) * | 2008-08-27 | 2009-01-14 | 中国科学院光电技术研究所 | Method for positioning conjugate focus of infrared Cassegrain collimator by concentric spherical lens group |
| CN101639351A (en) * | 2008-07-30 | 2010-02-03 | 北京航天计量测试技术研究所 | Double-shaft CCD sensor photoelectric auto-collimator |
| CN203231737U (en) * | 2013-04-27 | 2013-10-09 | 中国航天科工集团第三研究院第八三五八研究所 | Photoelectric auto-collimator |
| CN104101487A (en) * | 2014-07-31 | 2014-10-15 | 中国科学院光电研究院 | Wave aberration measuring device and measuring method of optical system |
| CN104154868A (en) * | 2014-08-06 | 2014-11-19 | 复旦大学 | Bifocal lens-based non-contact lens central thickness measuring device |
| CN204240946U (en) * | 2014-12-11 | 2015-04-01 | 四川云盾光电科技有限公司 | The two detecting polarization photoelectric auto-collimator of a kind of twin shaft |
-
2015
- 2015-12-18 CN CN201510958211.0A patent/CN105404016B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10269607A (en) * | 1997-03-19 | 1998-10-09 | Pioneer Electron Corp | Optical pickup device |
| US20080165420A1 (en) * | 2006-12-29 | 2008-07-10 | Fumitomo Yamasaki | Afocal lens, optical head, optical disk apparatus and optical information equipment |
| CN101639351A (en) * | 2008-07-30 | 2010-02-03 | 北京航天计量测试技术研究所 | Double-shaft CCD sensor photoelectric auto-collimator |
| CN101344377A (en) * | 2008-08-27 | 2009-01-14 | 中国科学院光电技术研究所 | Method for positioning conjugate focus of infrared Cassegrain collimator by concentric spherical lens group |
| CN203231737U (en) * | 2013-04-27 | 2013-10-09 | 中国航天科工集团第三研究院第八三五八研究所 | Photoelectric auto-collimator |
| CN104101487A (en) * | 2014-07-31 | 2014-10-15 | 中国科学院光电研究院 | Wave aberration measuring device and measuring method of optical system |
| CN104154868A (en) * | 2014-08-06 | 2014-11-19 | 复旦大学 | Bifocal lens-based non-contact lens central thickness measuring device |
| CN204240946U (en) * | 2014-12-11 | 2015-04-01 | 四川云盾光电科技有限公司 | The two detecting polarization photoelectric auto-collimator of a kind of twin shaft |
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| CN105404016B (en) | 2017-09-29 |
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