CN104977692B - Optical axis determines method in balsaming lens centering processing - Google Patents
Optical axis determines method in balsaming lens centering processing Download PDFInfo
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- CN104977692B CN104977692B CN201510354453.9A CN201510354453A CN104977692B CN 104977692 B CN104977692 B CN 104977692B CN 201510354453 A CN201510354453 A CN 201510354453A CN 104977692 B CN104977692 B CN 104977692B
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- balsaming lens
- optical axis
- centre
- sphere
- face
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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
- 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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- 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
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Method is determined the present invention relates to optical axis in balsaming lens centering processing, using the sphere center position that optical system finds 1 face, 2 faces, 3 faces of balsaming lens is built, the centre of sphere auto-collimation picture point in each face of balsaming lens is found on PC, an empty triangle is formed；Gesture stability frock is adjusted, three centre of sphere auto-collimation picture points of control are rocked, until two centre of sphere auto-collimation picture points of the longest edge in empty triangle are not rocked, now the line of two centre of sphere auto-collimation picture points of the longest edge in empty triangle is the optical axis of balsaming lens.The present invention solves the technical problem of existing glued mirror centering processing optical axis selection, the accuracy of the processing for the balsaming lens centering that the present invention is improved.
Description
Technical field
Debug detection field the invention belongs to optics, more particularly to optical axis is determined in balsaming lens centering processing method and
System.
Background technology
Double glued mirrors are to be bonded to form integral optical element with curvature surface by two simple lenses by gluing mode.Such as
Shown in Fig. 1, double glued mirrors have three faces, the face 31 of 1 face, 11,2 face 21,3, to should have the image of spherical center 12 in 1 face, 2 faces image of spherical center 22,
The image of spherical center in 3 faces；Wherein 2 faces are that cemented surface is two optical element curvature identical bonding planes.By optical theory it is recognised that every
Individual optical surface has a center of curvature and 3 centers of curvature of double glued mirrors are all point-blank, and this straight line is exactly double
The optical axis of glued mirror.
In actual lens gluing procedures, due to bondline thickness, alignment precision, operating personnel's subjective factor equal error, cause
Three centers of curvature of the lens after gluing not point-blank, the shape as shown in Fig. 2 center of curvature in three faces is connected two-by-two
Into a curvature triangle.Cemented doublet is fixed on after centering frock, by internal focusing telescope it is observed that 3 balls
Heart auto-collimation picture, any two image of spherical center can determine the optical axis of a glued mirror, now how determine the optical axis of glued mirror
As a key issue.Working experience of traditional glued mirror centering selection optical axis only with operating personnel, the glued mirror of selection the
And it is last while centre of sphere line as the optical axis benchmark of centering processing, adjust the two images of spherical center and do not rock, Jin Erche
The related fit dimension of glued picture frame is cut, process is completed.
The method shortcoming：
1st, centering processing optical axis selection has no basis, it is impossible to reach optimal centering precision；
When the 2nd, producing in batches, percent defective is higher, and can not find reason.
The content of the invention
In order to solve the technical problem that existing glued mirror centering processing optical axis is selected, present invention offer is a kind of to determine gluing
The method of mirror optical axis.
This bright technical solution：
Optical axis determines method in balsaming lens centering processing, and it is characterized in that：Comprise the following steps：
1】Build optical system：
Including lathe gyroaxis, gesture stability frock, picture frame, internal focusing telescope, CCD camera and PC, the appearance
State adjustment frock is arranged on lathe gyroaxis, and the picture frame is arranged on one end of pose adjustment frock, and the interior focusing is looked in the distance
Mirror is located at the front of the exit window of picture frame, and the other end of internal focusing telescope is connected by CCD camera with PC；Picture frame
Inside it is fixed with balsaming lens；The 1 of balsaming lens is facing to internal focusing telescope, and 2 faces of balsaming lens are cemented surface, balsaming lens
3 faces be towards gesture stability frock；
2】Internal focusing telescope is accommodated to the sphere center position in 1 face, 2 faces, 3 faces of balsaming lens, glue is found on PC
The centre of sphere auto-collimation picture point in each face of lens is closed, an empty triangle is formed；
3】Gesture stability frock is adjusted, three centre of sphere auto-collimation picture points of control are rocked, until the longest edge in empty triangle
Two centre of sphere auto-collimation picture points do not rock, now the line of two centre of sphere auto-collimation picture points of the longest edge in empty triangle is
For the optical axis of balsaming lens；
4】The optical axis of balsaming lens is it has been determined that i.e. balsaming lens optical axis is overlapped with the centre of gyration of lathe gyroaxis.
Advantage for present invention：
The accuracy of the processing for the balsaming lens centering that the present invention is improved.
Brief description of the drawings
Fig. 1 is ideally balsaming lens schematic diagram；
Fig. 2 is balsaming lens schematic diagram under reality；
Fig. 3 is the system structure diagram for determining balsaming lens optical axis；
Fig. 4 is determination balsaming lens optical axis principle schematic；
Wherein reference is：1- lathe gyroaxises, 2- gesture stability frocks, 3- picture frames, 4- balsaming lens, 5- interior focusings
Telescope, 6-CCD cameras, 7-PC machines, 11-1 faces, 21-2 faces, 31-3 faces, the image of spherical center in 12-1 faces, the image of spherical center in 22-2 faces,
The image of spherical center in 32-3 faces.
Embodiment
From theory of geometric optics, the optical axis of double glued mirrors determines there are following three kinds of situations：
1. on the basis of the face of cemented doublet the 1st and the 2nd face, then select the line of the center of curvature in the 1st face and the 2nd face
L12 as glued mirror optical axis；
2. on the basis of the face of cemented doublet the 2nd and the 3rd face, then select the line of the center of curvature in the 2nd face and the 3rd face
L23 as glued mirror optical axis；
3. on the basis of the face of cemented doublet the 1st and the 3rd face, then select the line of the center of curvature in the 1st face and the 3rd face
L13 as glued mirror optical axis；
How the optical axis benchmark of double glued mirrors is selected
Respectively by three summits of curvature triangle to its correspondence line segment do vertical line, as shown in figure 4, vertical line be respectively h1,
H2, h3, from geometric triangulation shape law of correlation, the corresponding vertical line of triangle longest edge is most short.That is, curvature will be constituted
The triangle length of side most long two images of spherical center are adjusted to not rocking, and the shaking volume of the 3rd image of spherical center now is minimum.Therefore we
Just in selection curvature triangle the length of side most long center of curvature line as double glued mirrors optical axis.
Then propose that a kind of optical axis of balsaming lens determines method, comprise the following steps：
1】Optical system is built, as shown in Figure 3；
Including lathe gyroaxis 1, gesture stability frock 2, picture frame 3, internal focusing telescope 5, CCD camera 6 and PC 7,
Pose adjustment frock is arranged on lathe gyroaxis, and picture frame is arranged on one end of pose adjustment frock, and internal focusing telescope is located at
The front of the exit window of picture frame, and the other end of internal focusing telescope is connected by CCD camera with PC；It is fixed in picture frame
There is balsaming lens 4；1 face 11 of balsaming lens 4 is towards internal focusing telescope 5, and 2 faces 21 of balsaming lens 4 are cemented surface, glued saturating
3 faces 31 of mirror 4 are towards gesture stability frock；
2】Internal focusing telescope is accommodated to the sphere center position in 1 face, 2 faces, 3 faces of balsaming lens, glue is found on PC
The centre of sphere auto-collimation picture point in each face of lens is closed, an empty triangle is formed；
3】Gesture stability frock is adjusted, three centre of sphere auto-collimation picture points of control are rocked, until the longest edge in empty triangle
Two centre of sphere auto-collimation picture points do not rock, now the line of two centre of sphere auto-collimation picture points of the longest edge in empty triangle is
For the optical axis of balsaming lens；
4】The optical axis of balsaming lens is it has been determined that i.e. balsaming lens optical axis is overlapped with the centre of gyration of lathe gyroaxis.
The centre of sphere auto-collimation picture of three spheres of balsaming lens is found by internal focusing telescope, it is desirable to boring-and-turning mill main shaft
And gesture stability frock is adjusted, two images of spherical center of composition curvature triangle longest edge is not rocked, then another image of spherical center
Minimum is rocked, now the optical axis of balsaming lens is it has been determined that be its optical axis and lathe spindle center superposition.Turning structural member is related
Position, it is ensured that its concentricity and perpendicularity with lens axis.
Specific steps：
1. double glued mirrors are loaded into picture frame and are fixed on centering processing tool, internal focusing telescope is accommodated into lens 1
Face, 2 faces, 3 face sphere center positions, need to look for the centre of sphere auto-collimation picture point in each face of lens；
2. by adjusting level and the pitch attitude of frock, control balsaming lens curvature triangle longest edge two sides image of spherical center
Shaking volume, two picture points is not rocked；
3. now the optical axis of balsaming lens is it was determined that be the centre of gyration weight of its optical axis and high-precision rotary axle
Close.
Claims (1)
1. optical axis determines method in balsaming lens centering processing, it is characterised in that：Comprise the following steps：
1】Build optical system：
Including lathe gyroaxis, gesture stability frock, picture frame, internal focusing telescope, CCD camera and PC, the posture is adjusted
Whole frock is arranged on lathe gyroaxis, and the picture frame is arranged on one end of pose adjustment frock, the internal focusing telescope position
The other end in the front of the exit window of picture frame, and internal focusing telescope is connected by CCD camera with PC；It is solid in picture frame
Surely there is balsaming lens；The 1 of balsaming lens is facing to internal focusing telescope, and 2 faces of balsaming lens are cemented surface, the 3 of balsaming lens
Face is towards gesture stability frock；
2】Internal focusing telescope is accommodated to the sphere center position in 1 face, 2 faces, 3 faces of balsaming lens, finds glued saturating on PC
The centre of sphere auto-collimation picture point in each face of mirror, forms an empty triangle；
3】Gesture stability frock is adjusted, three centre of sphere auto-collimation picture points of control are rocked, until two of the longest edge in empty triangle
Individual centre of sphere auto-collimation picture point is not rocked, and now the line of two centre of sphere auto-collimation picture points of the longest edge in empty triangle is glue
Close the optical axis of lens；
4】The optical axis of balsaming lens is it has been determined that i.e. balsaming lens optical axis is overlapped with the centre of gyration of lathe gyroaxis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510354453.9A CN104977692B (en) | 2015-06-24 | 2015-06-24 | Optical axis determines method in balsaming lens centering processing |
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| CN201510354453.9A CN104977692B (en) | 2015-06-24 | 2015-06-24 | Optical axis determines method in balsaming lens centering processing |
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| CN104977692B true CN104977692B (en) | 2017-09-22 |
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| CN107632407B (en) * | 2017-11-08 | 2020-02-04 | 凌云光技术集团有限责任公司 | Calibrating device of cylindrical lens imaging system |
| 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 |
| CN111338390A (en) * | 2020-04-08 | 2020-06-26 | 西安光衡光电科技有限公司 | Cemented lens centering control method and system and full-automatic cementing equipment |
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| JP4215325B2 (en) * | 1998-12-24 | 2009-01-28 | 山本光学株式会社 | Glasses lens and glasses using the same |
| BR0105376A (en) * | 2000-03-27 | 2002-02-19 | Koninkl Philips Electronics Nv | Optical scanning device, lens system, and optical player |
| CN203011532U (en) * | 2012-12-24 | 2013-06-19 | 中国科学院西安光学精密机械研究所 | Static two-channel Doppler heterodyne interferometer |
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