CN107607298A - The performance measurement method and its detection device of a kind of optical lens - Google Patents
The performance measurement method and its detection device of a kind of optical lens Download PDFInfo
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- CN107607298A CN107607298A CN201710890400.8A CN201710890400A CN107607298A CN 107607298 A CN107607298 A CN 107607298A CN 201710890400 A CN201710890400 A CN 201710890400A CN 107607298 A CN107607298 A CN 107607298A
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Abstract
The present invention relates to a kind of performance measurement method of optical lens and its detection device, the present invention relates to a kind of performance measurement method of optical lens and its detection device, the lens performance detection field belonged in optical system, including：Monitor station；Projector mechanism；Image acquisition units；Distance adjusting mechanism, the distance adjusting mechanism are used to dispose projector mechanism and adjust the distance between projector mechanism and optical lens；Arithmetic element, the control arithmetic element command range governor motion are controlled, and receives the signal input of each image acquisition device, to generate the multiple function curves specified for being used for expressing optical lens performance parameter, display unit；Conversion can be effectively digitized to optical lens performance using advanced light-sensitive system computer system, the accuracy of optical lens performance detection is improved, reduces influence of the subjective attitude of people to optical lens performance.
Description
Technical field
The present invention relates to a kind of performance measurement method of optical lens and its detection device, the camera lens belonged in optical system
Performance detection field.
Background technology
Optical lens is part essential in NI Vision Builder for Automated Inspection, directly affects the quality of image quality, influences to calculate
The realization of method and effect.Optical lens suffers from being widely applied in industrial circle and consumer level market, and industrial circle is related to machine
Tool parts measurement, plastic part measurement, glass and pharmaceutical containers measurement, electronic building brick measurement etc.；It is high-end in terms of consumer level market
Image documentation equipment, mobile phone camera module group, unmanned, safety monitoring, VR/AR etc. are all important application fields.As optics
With the branch of opto-electronic industry, optical lens industry has good development prospect.
The detection method of lens imaging performance of the prior art is sciagraphy, by by standard resolution plate, projecting to
It is imaged on projection screen, manually reads as resolution labeled, obtain lens imaging performance parameter.Its specific performance to optical lens
The method of test is：The graticle of shade line pair is projected on the inside of measured object back focal length, projects to the throwing of certain distance
Be imaged in shadow mechanism, it is artificial to read on projector mechanism, can discernable by eye clearly most thin line to being how thin line pair.Description
Line is referred to as spatial frequency to how thin parameter, and unit is：Line is right/millimeter.This method relies on human eye subjective judgement, although also may be used
To be referred to as quantitative detection, but subjective impact is very serious, obtains the accuracy, uniformity, repetition of lens imaging performance parameter
Bad, the low production efficiency of property, trackability are poor, it is impossible to meet the quality and efficiency requirements when camera lens largely produces.
The content of the invention
It is an object of the present invention to solve the above problems, the present invention is devised, overcome the deficiencies in the prior art, utilizes elder generation
The light-sensitive system computer system entered can effectively be digitized conversion to optical lens performance, improve optical lens performance
The accuracy of detection, reduce influence of the subjective attitude of people to optical lens performance.
The technical solution adopted for the present invention to solve the technical problems is：
The present invention discloses a kind of performance detection apparatus of optical lens, including：
Monitor station, the monitor station are used to dispose optical lens, optical lens is placed in the light path that projector mechanism is projected；
Projector mechanism, the projector mechanism can emit beam is projected in image acquisition device imaging by optical lens；
Image acquisition units, the image acquisition units include some image acquisition devices, and each image acquisition device is distributed in light
Camera lens upper surface is learned to be directed on the sphere of the centre of sphere and optical lens, and records projector mechanism respectively after optical lens projects
Picture；
Distance adjusting mechanism, the distance adjusting mechanism be used to disposing projector mechanism and adjust projector mechanism and optical lens it
Between distance；
Arithmetic element, the control arithmetic element command range governor motion are controlled, and receives the signal of each image acquisition device
Input, to generate the multiple function curves specified for being used for expressing optical lens performance parameter；
Display unit, the display unit are used for explicit function curve.
The structure utilizes multiple images collector to the projection by optical lens collection light source, by sentencing to definition
Disconnected and image calculating is handled, and the performance parameter of optical lens can be expressed in the form of numerical value, and then is reduced human eye subjectivity and sentenced
The disconnected influence judged optical lens performance, improve the accuracy and objectivity of optical lens test.
Further, in addition to bracket institution, the bracket institution are in caged and include the rail of multiple globally warps distributions
Road frame, mobile image collector is set respectively in each track frame, the warp direction movement that image acquisition device can be globally is simultaneously
All the time optical lens is pointed to.The supporting structure can be convenient to the position adjustment of image acquisition device, be carried due to the design of track frame
The compatibility that this high structure is measured different structure and different model camera lens.
Further, bracket institution also includes upper connected unit and lower connected unit, and multiple track frames are connected to connected unit with
Between connected unit；Image acquisition device is divided into central vision collector and peripheral field collector, and central vision collector is fixed on
On the downside of upper connected unit and optical lens is directed vertically to, each peripheral field collector is respectively arranged in a track frame.In the structure,
Each peripheral field collector can be moved independently so as to be convenient to the adjustment of image acquisition device position in track frame.
Further, bracket institution has 8 track frames, and the rail of globally warp direction arrangement is respectively equipped with each track frame
Road groove, the peripheral field collector moved along rail groove is respectively equipped with each track frame.
Further, in addition to pedestal, bracket adjustment mechanism and chopping mechanism, bracket adjustment mechanism be connected to bracket institution with
Make each image acquisition device alignment optical lens between pedestal and for the position of adjusting bracket mechanism；Chopping mechanism is to cover in support
Impermeable light shield outside structure and pedestal.The bracket adjustment mechanism can be convenient to the adjustment of bracket institution position, so as to be convenient to
The position of each image acquisition device is finely adjusted, ensure the versatility of this structure and to different model camera lens, different visual fields
The compatibility of position, in addition, using unified pedestal, be advantageous to improve the globality for unifying the structure.
Further, in addition to horizontal position adjustment mechanism, horizontal position adjustment mechanism are arranged at distance adjusting mechanism with throwing
Between shadow mechanism, and for adjusting the optical path direction of projector mechanism.By the design of horizontal position adjustment mechanism, can be convenient to
Projector mechanism light path is adjusted, so as to be more beneficial for collecting efficiency of the image acquisition device to image, reduces the debug time of equipment.
Present invention includes a kind of method for testing performance of optical lens, comprise the following steps：
Step 1：The peripheral field points that some image acquisition devices are desirably tested are distributed on the optical lens
Surface is on the sphere of the centre of sphere, and the projection through optical lens sent using image acquisition device acquired projections mechanism；
Step 2：The distance between projector mechanism and optical lens are adjusted, and is gathered using image acquisition device at optical lens
Realtime graphic；
Step 3：Control arithmetic element receives and handled the realtime graphic and calculates the function of the sign performance needed for generation
Curve one and parameter one；
Step 4：Uniform the distance between stepping mobile projector mechanism and optical lens, repeat to walk on each stepping position
Rapid 3, the function curve two and parameter two of the sign performance according to needed for moving process total data calculates generation；
Step 5：Control arithmetic element according to the function curve one of calculating, parameter one, function curve two, parameter two respectively at
Corresponding setting value relatively and judge optical lens whether performance qualified and/or qualified grade.
Use above the principle of the detection method of above optical lens for：Criss-cross projector mechanism is placed in optical lens
Come out near back focal length and by ray cast, image acquisition device receives light and is simultaneously imaged, and is transferred to and is controlling through sensor
Analyzed in arithmetic element processed, line spread function of the imaging lines on every two field picture as optical lens, the line spread function is returned
One Fourier transformation changed is modulation transfer function curve, and modulation transfer function curve characterizes optical lens imaging definition
With the relation of spatial frequency, and this curved line relation is exactly the result of quantitative detection.With the increase of spatial frequency, image clearly
Degree declines.If choosing the spatial frequency values of some, modulating transfer function value corresponding to this spatial frequency can be used to sentence
Whether the performance for determining optical lens meets the requirements.In addition, with light source after optical lens standard is moved closer to farther out burnt position,
Modulating transfer function value is gradually increasing, and image is gradually clear；After arrival standard near burnt position, modulating transfer function value is maximum；
Light source moves closer to optical lens again, then modulating transfer function value is gradually reduced, and image obscures gradually.The phenomenon characterizes tested
The basic imaging performance of optical lens, analysis defocusing curve can obtain many optical lens performance parameters.
Further, also there is debugging step before step 1, the content of the debugging step is as follows：
Debug item A：Adjustment image acquisition device rear lens focus is away from making it most clear to parallel photoimaging；
Debug item B：The distance between projector mechanism and optical lens and each image acquisition device position are adjusted, makes projector mechanism
The light sent can be received by all images collector；
Debug item C：Stop external disturbing rays and adjust the time for exposure of each image acquisition device, make control arithmetic element
It is more easy to receive and handles；
Debug item D：The distance between projector mechanism and optical lens are adjusted, makes the image positioned at optical lens central vision
Collector acquired image is clear.
Further, in step 3, processing of the arithmetic element to each two field picture is controlled to include following processing step：Image
Buffering and pretreatment-graphics field identification-sampling location extraction-Fast Fourier Transform (FFT)-normalization-parameter calibration-curve are intended
Close.
Further, in step 3, function curve include modulation transfer function curve, defocusing curve, parameter include depth of focus,
The curvature of field, astigmatism, uniformity, back focal length.
Beneficial effects of the present invention are：
1st, the machine automatic ration for the realizing lens imaging performance measurement of the present apparatus, avoids artificial judgement from causing a deviation, carries
The high accuracy of test data, uniformity and repeatability；
2nd, the multiple visual fields of tested camera lens, the modulation transfer function of multiple back focal length positions can be quickly measured, and calculates and obtains
Defocusing curve, the depth of field, the curvature of field, astigmatism, it is optimal after the tested camera lens such as burnt position other performance parameters, whole parameters are all protected
Deposit, and evaluation judgement is carried out to tested camera lens performance parameter according to comprehensive decision logic set in advance, testing efficiency is high, judgement
Data are comprehensive, and trackability is good；
3rd, different tested composition lens, difference test visual field requirement, different judgement specification requirements, adaptability be disclosure satisfy that
Extensively, switch speed is fast.
Brief description of the drawings
Fig. 1 is the front view of this detection device；
Fig. 2 is the side view of this detection device；
Fig. 3 is the top view of this detection device；
Fig. 4 is motion control unit to controlling arithmetic element control flow chart；
Fig. 5 is qualified or qualified grade decision flow chart.
Reference：The upper connected units of 1-, 2- central vision collectors, 3- peripheral field collectors, 4- track frames, 5- tracks
Groove, connected unit under 6-, 7- pedestals, 8- projector mechanisms, 9- distance adjusting mechanisms, 10- guide sleeves, 11- guide rods, 12- horizontal positions
Adjustment mechanism, 13- bracket adjustments mechanism are put, 14- erects bracket, 15- transverse brackets, 16- monitor stations, 17- collector seats.
Embodiment
Embodiment 1
As shown in drawings, the present invention discloses a kind of performance detection apparatus of optical lens, including：
Monitor station 16, the monitor station 16 are used to dispose optical lens, optical lens is placed in the light that projector mechanism 8 is sent
Lu Shang；
Projector mechanism 8, the projector mechanism 8 can be projected as designated shape in image acquisition device, and projector mechanism 8 includes detachable
Cross slit graticle, through cross-graduation plate, can be projected on image acquisition device be in cross to light；
Image acquisition units, the image acquisition units include some image acquisition devices, and each image acquisition device is distributed in light
Learn on the sphere of the camera lens centre of sphere and be directed at optical lens, and record projection of the projector mechanism 8 after optical lens respectively；Image is adopted
Storage is divided into central vision collector 2 and peripheral field collector 3；
Distance adjusting mechanism 9, the distance adjusting mechanism 9 are used to dispose projector mechanism 8 and adjust projector mechanism 8 and optical frames
The distance between head；In the present embodiment, distance adjusting mechanism 9 is vertical elevating mechanism；
Arithmetic element, the control arithmetic element command range governor motion 9 are controlled, and receives the signal of each image acquisition device
Input, to generate the multiple function curves specified for being used for expressing optical lens performance parameter；Control arithmetic element includes image
Data receipt unit, operation processing unit and motion control unit, motion control unit are used to control by distance adjusting mechanism 9
Projector mechanism 8 is remote or close to optical lens；View data receiving unit is used for the video letter for receiving the input of image acquisition device
Number, each two field picture in operation processing unit control process vision signal；
Display unit, the display unit are used for explicit function curve；
Bracket institution, the bracket institution are in caged, including 6,88 track frames 4, upper connected unit 1 and lower connected unit tracks
Frame 4 is connected to warp distribution between connected unit 1 and lower connected unit 6 and globally, is respectively equipped with globally in each track frame 4
The rail groove 5 of warp direction arrangement；Central vision collector 2 is fixed on the downside of connected unit 1 and is directed vertically to optical lens, and eight
Individual peripheral field collector 3 with collector seat 17 respectively by being arranged in corresponding track frame 4 and being moved along rail groove 5, respectively
And peripheral field collector 3 points to optical lens all the time；
Pedestal 7, distance adjusting mechanism 9 is fixed on the pedestal 7, and monitor station 16 passes sequentially through transverse bracket 15 and perpendicular bracket
14 are fixed on the pedestal 7；
Bracket adjustment mechanism 13, the bracket adjustment mechanism 13 are connected between bracket institution and pedestal 7 and for adjusting branch
The position of frame mechanism makes each image acquisition device alignment optical lens；
Chopping mechanism, chopping mechanism are the impermeable light shield covered in outside supporting structure and pedestal 7；
Horizontal position adjustment mechanism 12, horizontal position adjustment mechanism 12 be arranged at distance adjusting mechanism 9 and projector mechanism 8 it
Between, and for adjusting the optical path direction of projector mechanism 8.
Embodiment 2
Based on the structure in embodiment 1, its method for testing performance to optical lens, including herein below：
Optical lens is placed on the monitor station 16 between cross slit graticle and nine image acquisition devices；Adjustment nine
The focal position of image acquisition units makes image acquisition device be in the state for gathering infinity object image；Optically, infinitely
Far object image refers to that object may be considered that from infinity luminous point, in the form of collimated light beam when object distance exceedes certain distance
Take in camera lens, the present embodiment middle finger adjustment image acquisition units rear lens focus away from, make it most clear to parallel photoimaging, so as to
Test system is set to be operated in infinite conjugate state.
Each image acquisition device is to the centre of sphere, the centre of sphere is the surface location of optical lens；Each peripheral field collector 3 is with
Two times of the angle of heart visual field collector 2 are to test field of view angle；Peripheral field collector 3 is adjusted on respective carter frame 4
Position, be located at want measurement suitable visual field Angle Position；Open projector mechanism 8 and light cross slit graticle；
The real-time video of displayable each image acquisition device collection in display unit；Adjust horizontal position adjustment mechanism 12 and apart from tune
Section mechanism 9 makes the cross projection image of the cross slit graticle after lighting be received by each image acquisition device；Finely tune IMAQ
Position of the device in track frame 4, the cross slit image position for gathering all images collector are optimal；Chopping mechanism is covered in
Bracket institution and pedestal 7 are outer to stop that external disturbing rays enter；What image acquisition device gathered in observation indication mechanism regards in real time
Frequently, the time for exposure of nine image acquisition devices is adjusted, makes image light and shade moderate；It is narrow to change cross to finely tune distance adjusting mechanism 9
The upright position Ji Houjiao positions of graticle are stitched, make the image cross slit image that is gathered in central vision collector 2 most clear.
The video image for each frame that image acquisition device provides, by controlling arithmetic element to receive, control arithmetic element pair
It is fixed to carry out image buffers and pretreatment, graphics field identification, sampling location extraction, Fast Fourier Transform (FFT), normalization, parameter
The digital signal processings such as mark, curve matching, obtain the tune in current cross slit graticle upright position and optical lens
Modulation trnasfer function curve；Image and the function curve real-time display on indication mechanism.
Control arithmetic element is moved by command range governor motion 9 under certain speed and position, while image is adopted
Storage gathers multi-frame video image at a time interval, after control arithmetic element gathers a number of image, to whole figures
As carrying out Digital Signal Processing, whole numbers that modulation transfer function changes and changed with cross slit graticle upright position are obtained
According to；Operation processing unit is counted to total data, analyzed, according to formula calculate obtain defocusing curve, the depth of field, the curvature of field, as
Other imaging performance parameters of the optical lens such as burnt position after scattered, optimal；Control arithmetic element is sentenced according to synthesis set in advance
Certainly logic, evaluation judgement is carried out per performance parameter to optics, obtain court verdict as qualified, unqualified and/or qualified grade；
Image, curve, imaging parameters data and evaluation court verdict, all come out in indication mechanism real-time display.
Embodiment 3
A kind of method for testing performance of optical lens of the present invention, comprises the following steps：
Step 1：The peripheral field points that some image acquisition devices are desirably tested are distributed on the optical lens
Surface is on the sphere of the centre of sphere, and the projection through optical lens sent using image acquisition device acquired projections mechanism；
Step 2：The distance between projector mechanism and optical lens are adjusted, and is gathered using image acquisition device at optical lens
Realtime graphic；
Step 3：Control arithmetic element receives and handled the realtime graphic and calculates the function of the sign performance needed for generation
Curve one and parameter one；
Step 4：Uniform the distance between stepping mobile projector mechanism and optical lens, repeat to walk on each stepping position
Rapid 3, the function curve two and parameter two of the sign performance according to needed for moving process total data calculates generation；
Step 5：Control arithmetic element according to the function curve one of calculating, parameter one, function curve two, parameter two respectively at
Corresponding setting value relatively and judge optical lens whether performance qualified and/or qualified grade.
Also there is debugging step before above-mentioned steps 1, the content of the debugging step is as follows：
Debug item A：Adjustment image acquisition device rear lens focus is away from making it most clear to parallel photoimaging；
Debug item B：The distance between projector mechanism and optical lens and each image acquisition device position are adjusted, makes projector mechanism
The light sent can be received by all images collector；
Debug item C：Stop external disturbing rays and adjust the time for exposure of each image acquisition device, make control arithmetic element
It is more easy to receive and handles；
Debug item D：The distance between projector mechanism and optical lens are adjusted, makes the image positioned at optical lens central vision
Collector acquired image is clear.
In above-mentioned steps 3, processing of the control arithmetic element to each two field picture includes following processing step：Image buffers
And pretreatment-graphics field identification-sampling location extraction-Fast Fourier Transform (FFT)-normalization-parameter calibration-curve matching.
In step 3, function curve include modulation transfer function curve, defocusing curve, parameter include depth of focus, the curvature of field, astigmatism, uniformity,
Back focal length
Image buffers and the purpose of pretreatment are：Raw image format is buffered and is transformed to what is needed for subsequent arithmetic
A variety of image data storage formats.
Graphics field identification purpose be：Cross slit location in automatic identification image, adopted for finding extraction calculating
Sample position
The purpose of sampling location extraction：It is that suitable position is as line spread function sample in selection image, for follow-up
Calculate modulation transfer function
The purpose of Fast Fourier Transform (FFT) is that line spread function is transformed into modulation transfer function；
Normalized purpose is：Modulation transfer function is set to unify benchmark；
The coordinate of coordinate system where the purpose of parameter calibration is to determine go curve；
The purpose of curve matching is that the modulation transfer function discrete data point that computing obtains is fitted into full curve.
Above-described embodiment is not the restriction to embodiment just for the sake of the done citing of clearly explanation.For
For those skilled in the art, it can also make other changes in different forms on the basis of the above description.
There is no necessity and possibility to exhaust all the enbodiments.And the obvious changes or variations thus extended out is still
In protection scope of the present invention.
Claims (10)
- A kind of 1. performance detection apparatus of optical lens, it is characterised in that including：Monitor station (16), the monitor station (16) are used to dispose optical lens, optical lens is placed in what projector mechanism (8) was projected In light path；Projector mechanism (8), the projector mechanism (8) can emit beam is projected in image acquisition device imaging by optical lens；Image acquisition units, the image acquisition units include some image acquisition devices, and each image acquisition device is distributed in optical frames Projector mechanism (8) is recorded respectively after optical lens projects to be directed on the sphere of the centre of sphere and optical lens in head upper surface Picture；Distance adjusting mechanism (9), the distance adjusting mechanism (9) are used to dispose projector mechanism (8) and adjust projector mechanism (8) and light Learn the distance between camera lens；Arithmetic element, the control arithmetic element command range governor motion (9) are controlled, and the signal for receiving each image acquisition device is defeated Enter, to generate the multiple function curves specified for being used for expressing optical lens performance parameter；Display unit, the display unit are used for explicit function curve.
- 2. the performance detection apparatus of optical lens as claimed in claim 1, it is characterised in that also including bracket institution, the branch Frame mechanism is in caged and includes the track frame (4) of multiple globally warp distributions, is set respectively on each track frame (4) removable Image acquisition device, warp direction that image acquisition device can be globally moves and points to optical lens all the time.
- 3. the performance detection apparatus of optical lens as claimed in claim 2, it is characterised in that bracket institution also includes upper connection Platform (1) and lower connected unit (6), multiple track frames (4) are connected between connected unit (1) and lower connected unit (6)；Image acquisition device It is divided into central vision collector (2) and peripheral field collector (3), central vision collector (2) is fixed under connected unit (1) Side is simultaneously directed vertically to optical lens, and each peripheral field collector (3) is respectively arranged in a track frame (4).
- 4. the performance detection apparatus of optical lens as claimed in claim 3, it is characterised in that bracket institution has 8 tracks Frame (4), the rail groove (5) of globally warp direction arrangement is respectively equipped with each track frame (4), is set respectively on each track frame (4) Have along the mobile peripheral field collector (3) of rail groove (5).
- 5. the performance detection apparatus of optical lens as claimed in claim 2, it is characterised in that also adjusted including pedestal (7), support Mechanism (13) and chopping mechanism are saved, bracket adjustment mechanism (13) is connected between bracket institution and pedestal (7) and for adjusting branch The position of frame mechanism makes each image acquisition device alignment optical lens；Chopping mechanism is to cover in supporting structure and pedestal (7) outside not Diffuser.
- 6. the performance detection apparatus of optical lens as claimed in claim 1, it is characterised in that also including horizontal position adjustment machine Structure (12), horizontal position adjustment mechanism (12) are arranged between distance adjusting mechanism (9) and projector mechanism (8), and for adjusting The optical path direction of projector mechanism (8).
- 7. a kind of method for testing performance of optical lens, it is characterised in that comprise the following steps：Step 1：The peripheral field points that some image acquisition devices are desirably tested are distributed to the optical lens upper surface For on the sphere of the centre of sphere, and the projection through optical lens sent using image acquisition device acquired projections mechanism；Step 2：The distance between projector mechanism and optical lens are adjusted, and utilizes the reality at image acquisition device collection optical lens When image；Step 3：Control arithmetic element receives and handled the realtime graphic and calculates the function curve of the sign performance needed for generation One and parameter one；Step 4：Uniform the distance between stepping mobile projector mechanism and optical lens, the repeat step 3 on each stepping position, The function curve two and parameter two of sign performance according to needed for moving process total data calculates generation；Step 5：Control arithmetic element according to the function curve one of calculating, parameter one, function curve two, parameter two respectively at corresponding Setting value relatively and judge optical lens whether performance qualified and/or qualified grade.
- 8. the method for testing performance of optical lens as claimed in claim 7, it is characterised in that also have adjust before step 1 Try is rapid, and the content of the debugging step is as follows：Debug item A：Adjustment image acquisition device rear lens focus is away from making it most clear to parallel photoimaging；Debug item B：The distance between projector mechanism and optical lens and each image acquisition device position are adjusted, sends projector mechanism Light can be received by all images collector；Debug item C：Stop external disturbing rays and adjust the time for exposure of each image acquisition device, be more easy to control arithmetic element Receive and handle；Debug item D：The distance between projector mechanism and optical lens are adjusted, makes the IMAQ positioned at optical lens central vision Device acquired image is clear.
- 9. the method for testing performance of optical lens as claimed in claim 7 or 8, it is characterised in that in step 3, control fortune Calculating processing of the unit to each two field picture includes following processing step：Image buffers and pretreatment-graphics field identification-sample bits Put extraction-Fast Fourier Transform (FFT)-normalization-parameter calibration-curve matching.
- 10. the method for testing performance of optical lens as claimed in claim 7 or 8, it is characterised in that in step 3, function is bent Line includes modulation transfer function curve, defocusing curve, and parameter includes depth of focus, the curvature of field, astigmatism, uniformity, back focal length.
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|---|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519264Y (en) * | 2001-12-11 | 2002-10-30 | 中国科学院光电技术研究所 | Distortion testing device for ultra-wide-angle lens |
| CN1470861A (en) * | 2002-07-22 | 2004-01-28 | 力捷电脑股份有限公司 | Lens detecting tool |
| CN2636219Y (en) * | 2003-07-24 | 2004-08-25 | 信统科技股份有限公司 | Optics lens tester |
| CN103760684A (en) * | 2014-01-23 | 2014-04-30 | 天津大学 | Method for evaluating quality of free curved surface lens |
| CN105675266A (en) * | 2016-02-03 | 2016-06-15 | 上海仪万光电科技有限公司 | Device and method for measuring modulation transfer function of optical lens based on infinite conjugate optical path |
-
2017
- 2017-09-27 CN CN201710890400.8A patent/CN107607298A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519264Y (en) * | 2001-12-11 | 2002-10-30 | 中国科学院光电技术研究所 | Distortion testing device for ultra-wide-angle lens |
| CN1470861A (en) * | 2002-07-22 | 2004-01-28 | 力捷电脑股份有限公司 | Lens detecting tool |
| CN2636219Y (en) * | 2003-07-24 | 2004-08-25 | 信统科技股份有限公司 | Optics lens tester |
| CN103760684A (en) * | 2014-01-23 | 2014-04-30 | 天津大学 | Method for evaluating quality of free curved surface lens |
| CN105675266A (en) * | 2016-02-03 | 2016-06-15 | 上海仪万光电科技有限公司 | Device and method for measuring modulation transfer function of optical lens based on infinite conjugate optical path |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186651A (en) * | 2018-02-23 | 2019-08-30 | 宁波舜宇车载光学技术有限公司 | MTF test equipment for camera lens |
| CN110186651B (en) * | 2018-02-23 | 2021-08-03 | 宁波舜宇车载光学技术有限公司 | MTF test equipment for lens |
| CN109186959A (en) * | 2018-09-28 | 2019-01-11 | 歌尔股份有限公司 | Detection method, device and the equipment of the curvature of field of VR optics module |
| CN109186959B (en) * | 2018-09-28 | 2020-02-07 | 歌尔股份有限公司 | Method, device and equipment for detecting field curvature of VR optical module |
| CN111263136A (en) * | 2018-11-30 | 2020-06-09 | 欧菲影像技术（广州）有限公司 | Method for detecting imaging field curvature, method for detecting imaging inclination and imaging detector |
| CN109375470A (en) * | 2018-12-07 | 2019-02-22 | 歌尔股份有限公司 | A kind of test device, test macro and the test method of wide-angle mould group |
| CN111369921A (en) * | 2018-12-25 | 2020-07-03 | 北京耐德佳显示技术有限公司 | Measuring device and method of display equipment |
| CN112051034A (en) * | 2019-06-06 | 2020-12-08 | 宁波舜宇车载光学技术有限公司 | Optical test system and optical test method |
| CN112153365A (en) * | 2019-06-26 | 2020-12-29 | 上海光启智城网络科技有限公司 | Digital test image display system, test method and application |
| CN110514409A (en) * | 2019-08-16 | 2019-11-29 | 俞庆平 | A kind of quality inspection method and device of laser direct imaging camera lens |
| EP3974799A1 (en) * | 2020-09-25 | 2022-03-30 | Trioptics GmbH | Mtf testing apparatus and use thereof |
| US11846562B2 (en) | 2020-09-25 | 2023-12-19 | Trioptics Gmbh | MTF testing apparatus |
| CN114697509A (en) * | 2022-05-31 | 2022-07-01 | 江西联益光学有限公司 | Split type lens assembling method, device and system |
| CN114697509B (en) * | 2022-05-31 | 2022-09-16 | 江西联益光学有限公司 | Split type lens assembling method, device and system |
| CN117571266A (en) * | 2023-12-11 | 2024-02-20 | 广州安通林灯具有限公司 | Projection lens flexible optical detection system and detection method |
| CN117571266B (en) * | 2023-12-11 | 2024-07-02 | 广州安通林灯具有限公司 | Projection lens flexible optical detection system and detection method |
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