CN104330866B - A kind of optical lens assembly method - Google Patents
A kind of optical lens assembly method Download PDFInfo
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- CN104330866B CN104330866B CN201410684685.6A CN201410684685A CN104330866B CN 104330866 B CN104330866 B CN 104330866B CN 201410684685 A CN201410684685 A CN 201410684685A CN 104330866 B CN104330866 B CN 104330866B
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- spacer ring
- eyeglass
- lens barrel
- alternative
- ring
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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
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses a kind of optical lens assembly method.This method is after it is determined that the thickness of spacer ring can make the actual range between adjacent mirror meet design requirement, eyeglass and spacer ring are loaded into lens barrel according to the distributing order of design again, and when being put into eyeglass every time, the offset of measured optical axis is rotated with moving lens barrel according to align measurement instrument, the inclined degree that this time loads eyeglass is adjusted, until all eyeglasses and spacer ring are fully enclosed in lens barrel.So during camera lens is assembled, the detection for aligning degree to each eyeglass will be realized by align measurement instrument, the eyeglass deflection newly loaded can be adjusted by the constantly situation detected, so that each eyeglass is coaxially assemblied in lens barrel, that is the center overlapping of axles of the optical axis of eyeglass and lens barrel, it is achieved thereby that the detection and adjustment of the deflection in camera lens assembling process to eyeglass in lens barrel so that resolution of lens that single is assembled is higher, image quality is more preferable.
Description
Technical field
The present invention relates to a kind of optical lens assembly method.
Background technology
At present, in TV ray machine debugs field, the assembling of optical lens is needed first according to the interval between adjacent mirror
Distance, then adjusts inclination and the offset of eyeglass so that the optical axis of each eyeglass is adjusted on the axis of lens barrel, realizes eyeglass
It is coaxial with lens barrel, to ensure the image quality of camera lens.Especially when assembling compact optical camera lens, the lens barrel diameter of camera lens typically exists
20mm or so, and eyeglass assembles in lens barrel by the way of straight tube press-fits, without corresponding fixed structure between eyeglass and lens barrel.
Traditional camera lens assembling mode is：First eyeglass and spacer ring are sequentially placed into lens barrel, then again using calibrator measurement correspondence two
Spacing distance between eyeglass, and spacer ring is polished with sand paper when the spacing distance of two eyeglasses is unsatisfactory for requiring, pass through
Adjust the thickness of spacer ring and required to cause the spacing distance between two eyeglasses to meet.But due in whole assembling process, eyeglass
Tilt quantity can not detect and adjust, completed and after being detected to the resolution ratio of camera lens so being assembled in camera lens, such as mirror
When the resolution ratio aberration of head is larger, the camera lens will need to ressemble after removing, and ressemble the resolution ratio picture of rear lens
Difference adjustment be also required to by workman eyesight and experience decision, so the assembly method of such a camera lens exist quality it is uncontrollable,
The problem of time-consuming and image quality is inconsistent is reprocessed, while spacer ring by sand paper after being ground, the depth of parallelism of the ring end face of spacer ring two
It can not ensure, so that there is the crank-sided problem of eyeglass in camera lens assembling, and during camera lens is carried and is transported,
Because the contact area of spacer ring and eyeglass is small, easily there is the situation of eyeglass loosening in vibrations in camera lens, causes laser
Resolution ratio and image quality reduction.
The content of the invention
It is an object of the invention to provide a kind of optical lens assembly method, it is intended to which the camera lens for solving prior art was being assembled
Tilt quantity in journey due to eyeglass in lens barrel is not detected and adjusted, and the repair rate of caused camera lens is high, image quality is poor
The problem of.
In order to realize the above object the technical scheme of optical lens assembly method is as follows in the present invention：
Optical lens assembly method, comprises the following steps：
Step one, each eyeglass and spacer ring are sequentially loaded into lens barrel according to the distributing order of design, spacer ring is in adjacent two
Between eyeglass, the thickness of spacer ring makes the actual interval distance between adjacent mirror meet design requirement；
Step 2, eyeglass and spacer ring are taken out from lens barrel；
Step 3, lens barrel is loaded on align measurement instrument；
Step 4, each eyeglass and spacer ring are sequentially loaded into lens barrel again according to the distributing order of design, and are being put every time
When entering eyeglass, the offset of measured optical axis is rotated with moving lens barrel according to align measurement instrument, this time is adjusted and loads eyeglass
Inclined degree, until all eyeglasses and spacer ring are fully enclosed in lens barrel.
Before step one, except preparation actual (real) thickness size and design thickness it is equal sized each it is main select spacer ring in addition to, then
Correspondence is each main to be selected the small alternative small spacer ring of the spacer ring preparation thickness for selecting spacer ring more main than correspondence and more main than correspondence selects spacer ring greatly standby
Select big spacing ring；In step one, when the actual spacing between adjacent mirror is in outside the claimed range of design spacing, by main choosing
Spacer ring is replaced with corresponding alternative big spacing ring or alternative small spacer ring, until the actual spacing between adjacent mirror is in design spacing
Claimed range in.
Alternative big spacing ring and/or alternative small spacer ring has two or more and thickness differs in size.
Alternative big spacing ring and/or alternative small spacer ring are 0.01mm or 0.02mm compared to the main thickness difference for selecting spacer ring.
Between step one, the seamed edge of spacer ring and surface are ground with grinding tool, remove spacer ring on corresponding eyeglass
The sharp side of contact.
Actual interval distance in step one between adjacent mirror is obtained by calibrator measurement.
In step 2, the eyeglass taken out from lens barrel and spacer ring are cleaned.
After step 4, focal length detection is carried out to the camera lens finished product obtained in step 4 with focimeter.
The method of the present invention after it is determined that the thickness of spacer ring can make the actual range between adjacent mirror meet design requirement,
Eyeglass and spacer ring are loaded into lens barrel according to the distributing order of design again, and when being put into eyeglass every time, surveyed partially according to center
The offset that instrument rotates measured optical axis with moving lens barrel is measured, the inclined degree that this time loads eyeglass is adjusted, until all mirrors
Piece and spacer ring are fully enclosed in lens barrel.So during camera lens is assembled, it will be realized by align measurement instrument to each mirror
The detection for aligning degree of piece, can be adjusted by the constantly situation detected to the eyeglass deflection newly loaded so that
Each eyeglass is coaxially assemblied in lens barrel, i.e. the center overlapping of axles of the optical axis of eyeglass and lens barrel, it is achieved thereby that being assembled in camera lens
The detection and adjustment of deflection in journey to eyeglass in lens barrel so that resolution of lens that single is assembled is higher, imaging
Better quality, also fundamentally reduces the problem of camera lens repair rate is high.
Brief description of the drawings
Fig. 1 is the structural representation of camera lens in embodiments of the invention.
Embodiment
The embodiment of optical lens assembly method in the present invention：One kind is in TV ray machine integration techno logy field during this method
The high-precision assembly method of small optical system camera lens, comprises the following steps：
1, preparation spacer ring 3 and eyeglass, except equal sized each of preparation actual (real) thickness size and design thickness main selects spacer ring
Outside, then corresponding each main select the small alternative small spacer ring of the spacer ring preparation thickness for selecting spacer ring more main than correspondence and select spacer ring big than correspondingly main
Alternative big spacing ring, alternative big spacing ring and alternative small spacer ring have two, each alternative big spacing ring, main selects spacer ring and alternative small spacer ring
Thickness difference from big to small is 0.01mm, and such as design size is the thick spacer rings 3 of 2mm, not only needs to prepare the main of 2mm and selects spacer ring, also
Need by the alternative of+0.01 ,+0.02, -0.01, -0.02 four kind of specification processing four alternative spacer ring 3, i.e. 2.02mm, 2.01mm
The alternative small spacer ring of big spacing ring and 1.98mm, 1.99mm, phase is ensured can select the spacer ring 3 of suitable dimension in actual use
Actual interval size between adjacent eyeglass, it is to avoid the grinding of spacer ring 3 two times brought burr, inclination, light leak etc. in the prior art
Problem, then needs to be ground the seamed edge of spacer ring 3 and surface using grinding tool, with remove on spacer ring 3 with corresponding lens contacts
Sharp side, prevent shown in contact site the 4th spacer ring 33 as shown in Figure 1 and the first spacer ring 35 of eyeglass and spacer ring 3 every
The sharp side of circle 3 and the arc surface contact of eyeglass, so that eyeglass is loose when avoiding the vibration of lens barrel 2, caused by the pointed edges wear of spacer ring 3
Dynamic the problem of；
2, just fill：Lens barrel 2 is prevented on the workbench of calibrator, according to the distributing order of design by each eyeglass and spacer ring
3 are sequentially loaded into lens barrel 2 from bottom to top, and spacer ring 3 is between adjacent two eyeglass, and measure this assembling eyeglass using calibrator
The actual interval distance between preceding a piece of eyeglass, and compared with the design spacing distance on design drawing, at such as actual spacing distance
In design spacing distance claimed range in, then continue assemble after a piece of eyeglass, and if actual interval distance in design between
Gauge from claimed range outside, then the alternative spacer ring 3 of selection suitable dimension replaces master in alternative big spacing ring and alternative small spacer ring
Select spacer ring, and followed by measurement, the design spacing distance of the first spacer ring 35 two panels eyeglass above and below it can not ensure in such as Fig. 1
It is required that when, then according to thickness difference, the alternative spacer ring 3 of suitable dimension is selected in 1.98mm to the 2.02mm alternative spacer ring 3 of series
Load lens barrel 2 and replace it is main select spacer ring, and then measure, until the alternative spacer ring 3 newly loaded ensure that above and below two panels
The design requirements of spacing distance of eyeglass, so as to obtain eyeglass to be installed and spacer ring to be installed 3 that one group of specification meets design size requirement；
3, taken out by eyeglass and with spacer ring 3 from lens barrel 2, and the eyeglass taken out from lens barrel 2 and spacer ring 3 are carried out clearly
Wash；
4, it is hard-cover：First lens barrel 2 is fixed on align measurement instrument, lens barrel 2 is rotated around its center axis, then will
Eyeglass and spacer ring 3 are sequentially loaded into lens barrel 2 again according to the distributing order of design, and inclined by center when being put into eyeglass every time
Measuring instrument, which is detected, has filled the offset of optical axis 1 of eyeglass, and display device observation represent optical axis 1 cross picture on, 2 turns of lens barrel
The cross image displacement track of optical axis 1 is circle when dynamic, and represented offset is justified to having filled the position of eyeglass then according to cross picture
It is finely adjusted, makes cross picture substantially motionless, now the central axis of the optical axis 1 of eyeglass and lens barrel 2 is overlapped, followed by a piece of by under
Eyeglass to be installed loads lens barrel 2 and is adjusted, until all eyeglasses and spacer ring 3 are fully enclosed in lens barrel 2, and the optical axis of each eyeglass
1 is coaxial with lens barrel 2, i.e., the optical axis 1 of all eyeglasses filled in lens barrel 2 is on the central axis of lens barrel 2；
5, detected with focimeter and focal length detection is carried out to the camera lens finished product obtained in step 4.
In the above-described embodiments, spacer ring completes thickness adjustment by way of mutually replacing, in other embodiments,
If influence of the deformation produced after not considering polishing to overall precision, spacer ring can also realize thickness by way of polishing
Spend size adjusting.
In the above-described embodiments, alternative spacer ring is two whether great or small, in other embodiments, alternative big spacing ring and/
Or alternative small spacer ring can also be more than two or one.
Based on above content, optical lens assembly method can be implemented as follows in the present embodiment：
Step one, each eyeglass and spacer ring are sequentially loaded into lens barrel according to the distributing order of design, spacer ring is in adjacent two
Between eyeglass, the thickness of spacer ring makes the actual range between adjacent mirror meet design requirement；
Step 2, eyeglass and spacer ring are taken out from lens barrel；
Step 3, lens barrel is loaded on align measurement instrument；
Step 4, each eyeglass and spacer ring are sequentially loaded into lens barrel again according to the distributing order of design, and are being put every time
When entering eyeglass, the offset of measured optical axis is rotated with moving lens barrel according to align measurement instrument, this time is adjusted and loads eyeglass
Inclined degree, until all eyeglasses and spacer ring are fully enclosed in lens barrel.
Claims (6)
1. optical lens assembly method, it is characterised in that comprise the following steps：
Except preparation actual (real) thickness size and design thickness it is equal sized each it is main select spacer ring in addition to, then corresponding each main select spacer ring pre-
The small alternative small spacer ring of the standby thickness for selecting spacer ring more main than correspondence and more main than correspondence select the alternative big spacing ring of spacer ring greatly, alternative big spacing ring
It is 0.01mm or 0.02mm compare the main thickness difference for selecting spacer ring with alternative small spacer ring；
Step one, each eyeglass and spacer ring are sequentially loaded into lens barrel according to the distributing order of design, spacer ring is in adjacent two eyeglass
Between, the thickness of spacer ring makes the actual interval distance between adjacent mirror meet design requirement, when the reality between adjacent mirror
When spacing is in outside the claimed range of design spacing, spacer ring is selected to be replaced with corresponding alternative big spacing ring or alternative small spacer ring by main,
Until the actual spacing between adjacent mirror is in the claimed range of design spacing；
Step 2, eyeglass and spacer ring are taken out from lens barrel；
Step 3, lens barrel is loaded on align measurement instrument；
Step 4, each eyeglass and spacer ring are sequentially loaded into lens barrel again according to the distributing order of design, and are being put into mirror every time
During piece, the offset of measured optical axis is rotated with moving lens barrel according to align measurement instrument, this time is adjusted and loads inclining for eyeglass
Oblique degree, until all eyeglasses and spacer ring are fully enclosed in lens barrel.
2. optical lens assembly method according to claim 1, it is characterised in that alternative big spacing ring and/or alternative septulum
Circle has two or more and thickness differs in size.
3. optical lens assembly method according to claim 1 or 2, it is characterised in that between step one, with grinding tool pair
The seamed edge of spacer ring and surface are ground, and remove the sharp side with corresponding lens contacts on spacer ring.
4. optical lens assembly method according to claim 1 or 2, it is characterised in that in step one between adjacent mirror
Actual interval distance obtained by calibrator measurement.
5. optical lens assembly method according to claim 1 or 2, it is characterised in that in step 2, will be from lens barrel
The eyeglass and spacer ring of taking-up are cleaned.
6. optical lens assembly method according to claim 1 or 2, it is characterised in that after step 4, surveyed with focal length
Amount instrument carries out focal length detection to the camera lens finished product obtained in step 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410684685.6A CN104330866B (en) | 2014-11-25 | 2014-11-25 | A kind of optical lens assembly method |
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| CN201410684685.6A CN104330866B (en) | 2014-11-25 | 2014-11-25 | A kind of optical lens assembly method |
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| CN104330866A CN104330866A (en) | 2015-02-04 |
| CN104330866B true CN104330866B (en) | 2017-08-04 |
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| CN108241195B (en) * | 2016-12-27 | 2023-11-24 | 广州长步道光学科技有限公司 | Lens structure with double positioning assembly references for preventing lens inclination |
| CN107505684B (en) * | 2017-08-25 | 2020-04-28 | 南京理工大学 | Method for assembling and adjusting lens group |
| CN108620818B (en) * | 2018-04-18 | 2020-12-18 | 山东北方光学电子有限公司 | Objective lens adjusting method for fusion type telescope |
| CN109116505A (en) * | 2018-07-24 | 2019-01-01 | 深圳睿晟自动化技术有限公司 | The optical axis bearing calibration of camera lens |
| CN109239884B (en) * | 2018-09-18 | 2021-05-04 | 昆明北方红外技术股份有限公司 | Positioning system and method for guide rail in zoom optical system |
| CN109298500B (en) * | 2018-11-13 | 2020-09-11 | 中国航空工业集团公司洛阳电光设备研究所 | Assembling and adjusting method of axial zooming mechanism |
| CN110779686A (en) * | 2019-10-16 | 2020-02-11 | 中国航空工业集团公司洛阳电光设备研究所 | Non-contact real-time precise adjusting and mounting method for coaxial optical lens |
| CN112751997B (en) * | 2019-10-31 | 2022-09-09 | 北京小米移动软件有限公司 | Camera module and assembling method |
| CN111556237A (en) * | 2020-05-22 | 2020-08-18 | 上海创功通讯技术有限公司 | Electronic device and electronic device adjusting method |
| CN114755782A (en) * | 2022-02-25 | 2022-07-15 | 深圳市深视智能科技有限公司 | Point spectrum lens mounting method, device, system, storage medium and product |
| CN114577447B (en) * | 2022-03-14 | 2023-02-14 | 中国科学院长春光学精密机械与物理研究所 | Optical system installation and adjustment detection method |
| CN114603756B (en) * | 2022-03-22 | 2023-12-12 | 深圳市新四季信息技术有限公司 | Lens assembly and assembly process and storage equipment for same |
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| CN100552485C (en) * | 2006-11-22 | 2009-10-21 | 富准精密工业(深圳)有限公司 | Embedded focus lens structure |
| CN101561543B (en) * | 2009-06-02 | 2010-07-21 | 福建福光数码科技有限公司 | Full transmission-type spatial target search lens |
| CN102681131A (en) * | 2011-03-09 | 2012-09-19 | 亚洲光学股份有限公司 | Miniature lens module and manufacturing method thereof |
| CN102519608B (en) * | 2011-12-09 | 2013-04-17 | 中国科学院长春光学精密机械与物理研究所 | Method for assembling microobjective on point-diffraction interferometer |
| CN103309003B (en) * | 2012-03-09 | 2015-09-30 | 上海微电子装备有限公司 | The method of adjustment of camera lens and camera lens right alignment |
| CN103713370B (en) * | 2012-10-09 | 2015-11-11 | 南京理工大学 | A kind of method using three-coordinates measuring machine to debug the large-scale long focal length lens of near infrared |
| CN102879880B (en) * | 2012-10-11 | 2014-10-22 | 中国科学院光电技术研究所 | Rotating type optical system aligning device and adjusting method thereof |
| CN102998767B (en) * | 2012-11-20 | 2015-02-11 | 北京空间机电研究所 | Installation and adjustment method of infrared lenses |
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