CN104483740B - Axicon precision axis fixation method - Google Patents
Axicon precision axis fixation method Download PDFInfo
- Publication number
- CN104483740B CN104483740B CN201410671103.0A CN201410671103A CN104483740B CN 104483740 B CN104483740 B CN 104483740B CN 201410671103 A CN201410671103 A CN 201410671103A CN 104483740 B CN104483740 B CN 104483740B
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- CN
- China
- Prior art keywords
- axicon
- internal focusing
- focusing telescope
- telescope
- collimation
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
- G02B7/004—Manual alignment, e.g. micromanipulators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Telescopes (AREA)
Abstract
The invention discloses a kind of accurate axis fixation method of axicon, principle of this method based on catoptric imaging, by way of datum tool, coarse adjustment and accurate adjustment, go out pencil light to axicon front and rear surfaces using internal focusing telescope and be iterated auto-collimation, finally realize axicon dead axle.The present invention remarkable result be：Dead axle precision is finally transitioned into the measurement accuracy of internal focusing telescope by the present invention, i.e. lens dead axle precision internal focusing telescope precision is consistent, it is ensured that the accuracy for the axicon optical axis made；Different bores, the accurate dead axle of axicon of different curvature radius can be achieved, with very high versatility and practicality.
Description
Technical field
It is a kind of accurate axis fixation method of axicon specifically the present invention relates to optical engineering technical field.
Background technology
At present, known lens axis fixation method is come by lens element to be assembled to the datum hole of machining, reference plane
Ensure, or dead axle is realized by near field collimation so that the limited precision of lens dead axle.In addition, the focometer of in the market and
Centrescope can only also realize short-radius, small-bore axicon dead axle, operation inconvenience, and can not promote the use of in difference
The accurate dead axle of bore, the polymorphic type axicon of different curvature radius.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of accurate axis fixation method of axicon, this method
Using the principle based on catoptric imaging, go out pencil light using telescope and lens front and rear surfaces are iterated with auto-collimation, realize altogether
Axle lens dead axle, it is ensured that the accuracy for the axicon optical axis made.
To reach above-mentioned purpose, the accurate axis fixation method of a kind of axicon of present invention statement, it is characterised in that according to following
Step is carried out：
Step 1：The axicon for treating dead axle is placed on a platform, visible ray collimated light is set up on the right side of axicon
Source, adjusts the attitude of visible ray collimated light source, makes the luminous point that axicon front and rear surfaces are reflected back and visible ray collimated light source
Outlet is overlapped；
Step 2：One piece of standard mirror is set up on the platform on the left of axicon, the attitude of standard mirror is adjusted, makes standard mirror
The luminous point that surface is reflected back and overlapping that visible ray collimated light source is exported；
Step 3：An internal focusing telescope is set up on the platform on the left of standard mirror, internal focusing telescope is adjusted
Jiao, makes the cross hair picture picture that standard mirror is reflected back be overlapped with internal focusing telescope auto-collimation cross hair, then internal focusing telescope is entered
Row focusing and translation, make its auto-collimation cross hair be essentially coincided with visible ray collimated light source export center, so far complete coarse adjustment；
Step 4：Remove standard mirror, internal focusing telescope is focused, the fork for being reflected back axicon front and rear surfaces
Silk is as in the visual field of internal focusing telescope；
Step 5：Translation and corner of the translation of internal focusing telescope with corner or adjustment axicon are adjusted, is made coaxial
The cross hair picture that mirror front and rear surfaces are reflected back is overlapped with the intrinsic auto-collimation cross hair in internal focusing telescope, i.e. internal focusing telescope
Axis is coupled with coaxial lens axis, so as to realize axicon dead axle.
Principle of this method based on catoptric imaging, by way of datum tool, coarse adjustment and accurate adjustment, utilizes telescope outgoing
Cone light is iterated auto-collimation to lens front and rear surfaces, finally realizes axicon dead axle, dead axle precision is finally transitioned into interior
The measurement accuracy of focusing telescope, i.e. lens dead axle precision internal focusing telescope precision is consistent.This method can also be realized other all
Such as planoconvex spotlight, plano-concave lens, biconcave lens, the dead axle of meniscus shaped lens type element.
The present invention remarkable result be：Dead axle precision is finally transitioned into the measurement accuracy of internal focusing telescope by the present invention,
That is lens dead axle precision internal focusing telescope precision is consistent, it is ensured that the accuracy for the axicon optical axis made；It can be achieved not
The accurate dead axle of axicon of same bore, different curvature radius, with very high versatility and practicality.
Brief description of the drawings
The benchmark that Fig. 1 is the present invention sets up schematic diagram；
Fig. 2 is the axicon dead axle schematic diagram of the present invention.
Embodiment
The embodiment and operation principle to the present invention are described in further detail below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1- accompanying drawings 2, the accurate axis fixation method of a kind of axicon, it is characterised in that follow the steps below：
Step 1：As shown in figure 1, the axicon 3 for treating dead axle is placed on a platform, set up on the right side of axicon 3
Visible ray collimated light source 4, the attitude of adjustment visible ray collimated light source 4, make the luminous point that the front and rear surfaces of axicon 3 are reflected back with can
See that the outlet of light collimated light source 4 is overlapped；
Step 2：One piece of standard mirror 2 is set up on the platform in the left side of axicon 3, as shown in figure 1, adjustment standard mirror 2
Attitude, makes the luminous point that the surface of standard mirror 2 is reflected back be overlapped with the outlet of visible ray collimated light source 4；
Step 3：An internal focusing telescope 1 is set up on the platform in the left side of standard mirror 2, as shown in figure 1, hoping interior focusing
Remote mirror 1 is focused, and the cross hair picture picture that standard mirror 2 is reflected back is overlapped with the auto-collimation cross hair of internal focusing telescope 1, then internally
Focusing telescope 1 is focused and translated, and its auto-collimation cross hair is essentially coincided with the export center of visible ray collimated light source 4, extremely
This completes coarse adjustment；
In this example, the internal focusing telescope uses NWJ-3 type internal focusing telescopes, and it has near field collimation and far field accurate
Straight function, naked-eye observation is substituted with external CCD.Its main performance index parameter：Auto-collimation precision is better than 6 with angle measurement accuracy ", survey
About 3 ° of angular region.
Step 4：Remove standard mirror 2, as shown in Fig. 2 being focused to internal focusing telescope 1, make table before and after axicon 3
The cross hair picture that face is reflected back is in the visual field of internal focusing telescope 1；
Step 5：Translation and corner of the translation of internal focusing telescope 1 with corner or fine setting axicon 3 are finely tuned, is made coaxial
The cross hair picture that the front and rear surfaces of lens 3 are reflected back is overlapped with the intrinsic auto-collimation cross hair in internal focusing telescope 1, i.e. interior focusing is hoped
The remote axis of mirror 1 is coupled with the optical axis of axicon 3, i.e., the cone spire point of the outgoing of internal focusing telescope 1 respectively with before and after axicon 3
The center of curvature on surface is overlapped, and this position is unique, so far the optical axis coupling of the axis of internal focusing telescope 1 coaxial with lens 3, from
And realize the dead axle of axicon 3.
The front and rear surfaces normal of axicon 3 whether there is several, but front and rear surfaces are pointed to consistent normal and had and only only one,
That is lens axis, therefore the dead axle of axicon 3 just can be realized by single internal focusing telescope 1.This programme is based on optical imagery
Principle, using cone light collimating curve and the method for directional light collimation plane, looks in the distance by internal focusing telescope 1, and to interior focusing
Mirror 1 is focused, and internal focusing telescope 1 is gone out pencil light and is iterated auto-collimation to the front and rear surfaces of axicon 3, has finally come
Into the dead axle of axicon 3.
Claims (1)
1. the accurate axis fixation method of a kind of axicon, it is characterised in that follow the steps below：
Step 1：The axicon (3) for treating dead axle is placed on a platform, visible ray collimation is set up on the right side of axicon (3)
Light source (4), the attitude of adjustment visible ray collimated light source (4), the luminous point and visible ray for being reflected back axicon (3) front and rear surfaces
The outlet of collimated light source (4) is overlapped；
Step 2：One piece of standard mirror (2) is set up on the platform on the left of axicon (3), the attitude of adjustment standard mirror (2) makes mark
The luminous point that quasi- mirror (2) surface is reflected back is overlapped with the outlet of visible ray collimated light source (4)；
Step 3：An internal focusing telescope (1) is set up on the platform on the left of standard mirror (2), internal focusing telescope (1) is entered
Row focusing, makes the cross hair picture picture that standard mirror (2) is reflected back be overlapped with internal focusing telescope (1) auto-collimation cross hair, then internally adjusts
Burnt telescope (1) is focused and translated, and its auto-collimation cross hair is essentially coincided with visible ray collimated light source (4) export center；
Step 4：Remove standard mirror (2), internal focusing telescope (1) is focused, be reflected back axicon (3) front and rear surfaces
Cross hair picture in the visual field of internal focusing telescope (1)；
Step 5：Translation and corner of the translation of internal focusing telescope (1) with corner or adjustment axicon (3) are adjusted, is made coaxial
The cross hair picture that lens (3) front and rear surfaces are reflected back is overlapped with the intrinsic auto-collimation cross hair in internal focusing telescope (1), i.e., interior to adjust
The center of curvature of the cone spire point of burnt telescope (1) outgoing respectively with axicon (3) front and rear surfaces is overlapped, and this position is unique,
So far internal focusing telescope (1) axis is coupled with axicon (3) optical axis, so as to realize axicon (3) dead axle；
The internal focusing telescope (1) has near field collimation and far field alignment function, is also equipped with external CCD and substitutes naked-eye observation,
Its auto-collimation precision is better than 6 with angle measurement accuracy ", 3 ° of measurable angle range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671103.0A CN104483740B (en) | 2014-11-20 | 2014-11-20 | Axicon precision axis fixation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671103.0A CN104483740B (en) | 2014-11-20 | 2014-11-20 | Axicon precision axis fixation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104483740A CN104483740A (en) | 2015-04-01 |
| CN104483740B true CN104483740B (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671103.0A Expired - Fee Related CN104483740B (en) | 2014-11-20 | 2014-11-20 | Axicon precision axis fixation method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109471234B (en) * | 2019-01-04 | 2024-01-26 | 长春博信光电子有限公司 | Jig for cementing lens and positioning cementing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539656A (en) * | 2008-03-19 | 2009-09-23 | 株式会社三丰 | Optical unit and measuring instrument |
| CN102538689A (en) * | 2011-12-29 | 2012-07-04 | 中国科学院上海光学精密机械研究所 | Centering and locating device of optical system and using method thereof |
| CN102937738A (en) * | 2012-11-20 | 2013-02-20 | 中国科学院西安光学精密机械研究所 | System and method for achieving accurate positioning of off-axis aspheric surface reflector |
| CN103345073A (en) * | 2013-06-27 | 2013-10-09 | 中国科学院西安光学精密机械研究所 | Single-lens optic axis positioning device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4221427B2 (en) * | 2006-08-28 | 2009-02-12 | 株式会社タムロン | Optical device, imaging device, and electronic apparatus |
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2014
- 2014-11-20 CN CN201410671103.0A patent/CN104483740B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539656A (en) * | 2008-03-19 | 2009-09-23 | 株式会社三丰 | Optical unit and measuring instrument |
| CN102538689A (en) * | 2011-12-29 | 2012-07-04 | 中国科学院上海光学精密机械研究所 | Centering and locating device of optical system and using method thereof |
| CN102937738A (en) * | 2012-11-20 | 2013-02-20 | 中国科学院西安光学精密机械研究所 | System and method for achieving accurate positioning of off-axis aspheric surface reflector |
| CN103345073A (en) * | 2013-06-27 | 2013-10-09 | 中国科学院西安光学精密机械研究所 | Single-lens optic axis positioning device and method |
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| CN104483740A (en) | 2015-04-01 |
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Address after: 621900 Mianyang province Sichuan City Youxian Mianshan Road No. 64 Applicant after: Laser Fusion Research Center, Chinese Academy of Engineering Physics Address before: 400023 No. five Jane Road, Jiangbei District, Chongqing, 10 Applicant before: Laser Fusion Research Center, Chinese Academy of Engineering Physics |
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