CN102411256A - Lens testing device - Google Patents
Lens testing device Download PDFInfo
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- CN102411256A CN102411256A CN2010102894142A CN201010289414A CN102411256A CN 102411256 A CN102411256 A CN 102411256A CN 2010102894142 A CN2010102894142 A CN 2010102894142A CN 201010289414 A CN201010289414 A CN 201010289414A CN 102411256 A CN102411256 A CN 102411256A
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Abstract
The invention discloses a lens testing device, which comprises a bracket, an image sensor, a light source module and a testing platform. The bracket is provided with a first end and a second end which are opposite. The image sensor is arranged at the first end of the bracket. The light source module supplies test stripe patterns required by a tested lens. The testing platform is used for bearing the lens and positioned between the image sensor and the light source module. The lens testing device further comprises a pressure rod and a pressure head. The pressure rod is provided with a connecting end and a pressing end opposite to the connecting end; the connecting end is rotationally connected to the second end of the bracket through a rotating shaft; the pressure head is arranged at the pressing end of the pressure rod and faces the testing platform; the pressure head can move towards or away from the testing platform to press or be far way from a mirror in the lens; and the axis of the rotating shaft is parallel to the direction of pressing the mirror by the pressure head. According to the lens testing device, the mirror in the lens can be pressed and reset by using the pressure rod and the pressure head which are matched with the image sensor, so that the lens affecting the imaging test result because the mirror is not assembled in place is prevented from being classified into a defective product.
Description
Technical field
The present invention relates to a kind of lens test device, relate in particular to and a kind ofly can carry out the lens test device that pressing resets the eyeglass in the testing lens.
Background technology
Development of multimedia technology makes like digital camera, video camera and mobile phone, in daily life, to obtain by various consumption electronic products with shoot function universal day by day.And along with the expansion of consumer's usable range and the harshness day by day of result of use, these consumption electronic products with shoot function are faced with higher requirement aspect the quality of image.
These have in the consumption electronic products of shoot function, and camera lens is the vitals of imaging.The image quality of camera lens directly influences these qualities of image with consumption electronic products of shoot function.Traditional lens imaging test, (general being prone to puts in place because of the eyeglass in the camera lens is unassembled for Modulation Transfer Function, MTF) test, and influences the imaging test result of camera lens like modulation transfer function.At this moment, influence imaging test result's camera lens and be classified as defective products as directly this type of being put in place because of eyeglass is unassembled, with causing bigger waste.For avoiding this kind situation, normally manual work resets the stitching eyeglass in the camera lens through pressure bar, and then carries out the imaging test of camera lens, to reduce avoidable waste.But manually-operated will influence the progress of lens imaging test greatly, cause the waste in corresponding man-hour, and there will be the relatively poor shortcoming of degree of accuracy in manually-operated.
Summary of the invention
In view of this, be necessary to provide a kind of be easy to realize, lens test device that can effectively solve the problem that exists in the prior art.
A kind of lens test device comprises a support, a CIS, a light source module, and a test platform.Said support has one first end and one and the said first end second opposed end.Said CIS is arranged at first end of said support.Said light source module is used to the test candy strip that provides testing lens required.Said test platform is used to carry said camera lens, and said test platform is between said CIS and said light source module.Said lens test device further comprises a depression bar, and a pressure head.Said depression bar has a link and a pressing end relative with said link; Said link rotatably is connected in second end of said support through a turning axle; Said pressure head is arranged at the pressing end of said depression bar and towards said test platform; Said pressure head can towards or deviate from the motion of said test platform, with pressing or away from the eyeglass in the said camera lens, the parallel axes of said turning axle is in the direction of said pressure head pressing eyeglass.
With respect to prior art; Lens test device of the present invention has following advantage: one of which; Depression bar and pressure head that said lens test device utilization matches with CIS; Can carry out pressing to the unassembled eyeglass that puts in place in the camera lens and reset, avoid influencing imaging test result's camera lens and be classified as defective products, can reduce avoidable waste effectively putting in place because of eyeglass is unassembled.They are two years old; Said lens test device is convenient to realize that robotization or semi-automatic ground carry out pressing to the unassembled eyeglass that puts in place in the camera lens and resets, and the degree of accuracy of whole test and pressing reset operation is higher, can effectively guarantee the progress of lens imaging test; Practice thrift man-hour, improve testing efficiency.
Description of drawings
Fig. 1 is the synoptic diagram of the lens test device that provides of one embodiment of the invention.
View when Fig. 2 is a lens test device testing lens shown in Figure 1.
View when Fig. 3 is the eyeglass in the lens test device pressing camera lens shown in Figure 1.
The main element symbol description
Support 20
CIS 30
Loading end 51
Carry through hole 52
Pressing end 62
Turning axle 64
Embodiment
To combine accompanying drawing and embodiment that the present technique scheme is done further explain below.
See also Fig. 1, a kind of lens test device 100 of one embodiment of the invention, it is used for the camera lens of having assembled 10 is carried out imaging test, with the image quality of check camera lens 10.Said lens test device 100 comprises 50, one depression bars 60 of 40, one test platforms of 30, one light source modules of 20, one CISs of a support, and a pressure head 70.
Said camera lens 10 is positioned on the said test platform 50.Said support 20 drives the said CIS 30 that is provided with on it and moves; To regulate said CIS 30 and to be carried on the relative position between the camera lens 10 on the said test platform 50, be convenient to 30 pairs of camera lenses of said CIS 10 and carry out the respective imaging test.Said depression bar 60 is arranged on the said support 20, and it is used to drive said pressure head 70 rotations, to regulate said pressure head 70 and to be carried on the relative position between the camera lens 10 on the said test platform 50, the eyeglass in the camera lens 10 is carried out corresponding pressing reset.Said light source module 40 is used to provide testing lens 10 required test candy strip (Test Chart), with testing lens 10.
Said support 20 has one first end 21, and one and said first end, 21 second opposed end 22.In the present embodiment, said support 20 is the tabular structure of rectangle, and said first end 21 is respectively the two ends on said support 20 length directions with said second end 22.
Said CIS 30 is arranged at first end 21 of said support 20.In the present embodiment, said CIS 30 is arranged on said first end 21 surface down.
It is understandable that; Said CIS 30 can be charge-coupled device (CCD) (Charge CoupledDevice; CCD) CIS, perhaps complementary metal oxide semiconductor (CMOS) (ComplementaryMetal-Oxide-Semiconductor Transistor, CMOS) CIS.
Said light source module 40 is used to provide the said camera lens 10 needed test candy strips of test (figure does not show).In the present embodiment, said light source module 40 is positioned at the below of said support 20.It is understandable that said light source module 40 can comprise a plurality of test candy strips, be carried on said test platform 50 on a plurality of camera lenses 10 corresponding one by one.Certainly, said light source module 40 also can include only a test candy strip, thus, when testing different camera lenses 10, only needs said light source module 40 is moved to the below of corresponding camera lens 10, and it is got final product with corresponding camera lens 10 relatively.
Said test platform 50 is used for carrying and fixing camera lens 10, and it is arranged between said CIS 30 and the said light source module 40.In the present embodiment, said test platform 50 is a square carrier, and it is positioned at the below of said support 20, and is positioned at the top of said light source module 40.Said test platform 50 has a loading end 51, and a plurality of carrying through holes 52 that are opened on the said loading end 51.Said loading end 51 is towards said CIS 30 and be parallel to said support 20.Said a plurality of carrying through hole 52 is evenly spaced in length and breadth to be distributed on the said loading end 51.Each said carrying through hole 52 all carries and said camera lens 10 of fixing, and the central shaft of each said carrying through hole 52 is all perpendicular to said loading end 51.Each said carrying through hole 52 is through hole; Axially running through said loading end 51 along it reaches and said loading end 51 facing surfaces (figure is mark); Thus, light can arrive said CIS 30 via the camera lens that is carried on said carrying through hole 52 10 from said light source module 40.
It is understandable that in order to carry and the said camera lens 10 of fixing, each said carrying through hole 52 all can be designed as stepped hole, perhaps is designed to bellmouth, as long as can carry effectively and the said camera lens 10 of fixing.
Said depression bar 60 has the relative pressing end 62 of a link 61 and and said link 61.Said link 61 rotatably is connected in second end 22 of said support 20 through a turning axle 64, and said depression bar 60 can rotatablely move around said turning axle 64.In the present embodiment, said depression bar 60 is a major axis shape structure, and said link 61 and said pressing end 62 are respectively the axial two ends of said depression bar 60.Said depression bar 60 is parallel to said support 20 and said test platform 50, and said turning axle 64 is perpendicular to said depression bar 60.
Said pressure head 70 is arranged at the pressing end 62 of said depression bar 60; And said pressure head 70 is towards said test platform 50; Said pressure head 70 can towards or deviate from 50 motions of said test platform, with pressing or away from the eyeglass in the camera lens that is carried on said test platform 50 10.In the present embodiment, said pressure head 70 is a cylindrical structure, its central shaft perpendicular to said test platform 50 and with the central axes of the carrying through hole 52 of said test platform 50.
The distance of said pressure head 70 and said turning axle 64 equals the distance of said CIS 30 and said turning axle 64, and said pressure head 70 can rotate to over against the position of said CIS 30 around said turning axle 64 with said depression bar 60.Said pressure head 70 is along the central shaft pressing of said carrying through hole 52 or away from the eyeglass in the said camera lens 10.The direction of the eyeglass of the parallel axes of said turning axle 64 in said pressure head 70 pressing camera lenses 10.
Further, the distance of said pressure head 70 and said turning axle 64 is carried the breadth extreme of said camera lens 10 greater than said test platform 50.In the present embodiment, the distance of said pressure head 70 and said turning axle 64 is greater than cornerwise length of said test platform 50.Thus; When the back focal length of said camera lens 10 more in short-term; Can avoid in the process of the distance of regulating said CIS 30 and said camera lens 10; Because of said pressure head 70 receives stopping of said test platform 50, and the phenomenon that causes said CIS 30 to test to suitable position near said camera lens 10.
Preferably; Said pressure head 70 can be changed, and it is removably installed in the pressing end 62 of said depression bar 60, thus; Said lens test device 100 can be according to the actual conditions of camera lens 10; Like lens construction, size, type etc., adopt different pressure heads 70 to carry out corresponding pressing to different camera lens 10, improve the applicability of said lens test device 100.
Further, said lens test device 100 comprises a driver module and a control module (figure does not show).Said driver module electrically connects with said support 20 and said depression bar 60 respectively; Said driver module drives regulates CIS 30 that is arranged at said support 20 and the relative distance that is carried on the camera lens 10 of said test platform 50, and said driver module drives said depression bar 60 around said turning axle 64 rotations and drive the eyeglass in the said pressure head 70 pressing camera lenses 10.Said control module electrically connects with said driver module and said CIS 30 respectively, handles with the signal that said CIS 30 is obtained, and controls said driver module and carry out action accordingly.
It is understandable that said driver module can comprise respectively the driver with said support 20 and said depression bar 60 mechanical connections, like electro-motor, step motor, hydraulic unit driver.Thus, said driver module can move said CIS 30, makes its corresponding corresponding camera lens 10, and is positioned at suitable position and tests.Simultaneously, said driver module can drive said depression bar 60 and rotates to over against the position of corresponding camera lens 10 around said turning axle 64 with said pressure head 70; And, drive eyeglass in 70 pairs of corresponding camera lenses 10 of said pressure head and carry out pressing and reset through of the elevating movement of said support 20 with respect to said test platform 50.
It is understandable that said control module can be computing machine, row related signal processing that it is equipped with and can stores, the recognition image signal is gone forward side by side, hardware and the software analyzed have the input, the output module that are used for signal and communication simultaneously.
When using said lens test device 100; Position beyond rotating to said depression bar 60 directly over the said test platform 50 through said driver module; Thus; Said depression bar 60 and said pressure head 70 can not hinder said support 20 and do elevating movement with respect to said test platform 50, are convenient to regulate CIS that is arranged on the said support 20 and the distance that is carried on the camera lens 10 on the said test platform 50.Control said support 20, make said CIS 30 over against a camera lens 10 that is carried on the said test platform 50, as shown in Figure 2.Regulate the distance of said CIS 30 and said camera lens 10, make said CIS 30 obtain coherent signal and feed back to said control module.Said control module is handled, is analyzed coherent signal, judges the image quality of said camera lens 10.When the image quality of said camera lens 10 is qualified, move said CIS 30 to position over against next camera lens 10, test.When the image quality of said camera lens 10 is defective; Rotate said depression bar 60 through said driver module; Make the said pressure head 70 that is arranged on the said depression bar 60 position over against said camera lens 10; As shown in Figure 3, at this moment, said CIS 30 is on the same straight line with said pressure head 70 and said camera lens 10.Control said support 20 and drive said depression bars 60 and said pressure head 70, make eyeglass in 70 pairs of said camera lenses 10 of said pressure head carry out pressing and reset towards said test platform 50 motions.After pressing had resetted, said depression bar 60 was removed in rotation, controls the imaging test that said CIS 30 carries out once more.If the image quality of said camera lens 10 is still defective, then said camera lens 10 can be classified as defective products.
Repeat above operation, can accomplish the imaging test of a plurality of camera lenses 10.
It is understandable that said control module can compare said CIS 30 coherent signal that obtains and the contrast signal of storing in advance, to judge the image quality of said camera lens 10.
With respect to prior art; Lens test device of the present invention has following advantage: one of which; Depression bar and pressure head that said lens test device utilization matches with CIS; Can resetting for the eyeglass that puts in place of assembling carries out pressing in the camera lens be avoided influencing imaging test result's camera lens with putting in place because of eyeglass is unassembled and be classified as defective products, can reduce avoidable waste effectively.They are two years old; Said lens test device is convenient to realize that robotization or semi-automatic ground carry out pressing to the unassembled eyeglass that puts in place in the camera lens and resets, and the degree of accuracy of whole test and pressing reset operation is higher, can effectively guarantee the progress of lens imaging test; Practice thrift man-hour, improve testing efficiency.
In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (10)
1. lens test device, it comprises:
A support, it has one first end and one and the said first end second opposed end;
A CIS, it is arranged at first end of said support;
A light source module, it is used to the test candy strip that provides testing lens required; And
A test platform, it is used to carry said camera lens, and said test platform is between said CIS and said light source module;
It is characterized in that:
Said lens test device further comprises a depression bar; And pressure head; Said depression bar has a link and a pressing end relative with said link; Said link rotatably is connected in second end of said support through a turning axle, and said pressure head is arranged at the pressing end of said depression bar and towards said test platform, said pressure head can towards or deviate from said test platform motion; With pressing or away from the eyeglass in the said camera lens, the parallel axes of said turning axle is in the direction of said pressure head pressing eyeglass.
2. lens test device as claimed in claim 1; It is characterized in that; The distance of said pressure head and said turning axle equals the distance of said CIS and said turning axle, and said pressure head can rotate to the position over against said CIS around said turning axle with said depression bar.
3. lens test device as claimed in claim 2 is characterized in that, said test platform has a loading end, and a plurality of carrying through holes that are opened on the said loading end; Said loading end is towards said CIS and be parallel to said support; Said a plurality of carrying through hole is evenly spaced to be distributed on the said loading end; Each said carrying through hole all carries and said camera lens of fixing, and the central shaft of each said carrying through hole is all perpendicular to said loading end.
4. lens test device as claimed in claim 3 is characterized in that, said pressure head is perpendicular to said test platform, and said pressure head is along the central shaft pressing of said carrying through hole or away from the eyeglass in the said camera lens.
5. lens test device as claimed in claim 3 is characterized in that, the distance of said pressure head and said turning axle is carried the breadth extreme of camera lens greater than said test platform.
6. lens test device as claimed in claim 4 is characterized in that said depression bar is parallel to said test platform.
7. lens test device as claimed in claim 1; It is characterized in that; Said lens test device further comprises a driver module; Said driver module electrically connects with said support and said depression bar respectively; Said driver module drives said support with adjusting CIS that is arranged at said support and the relative distance that is carried on the camera lens of said test platform, said driver module drive said depression bar around said turning axle rotation and drive said pressure head towards or deviate from said test platform motion, with pressing or away from the eyeglass in the camera lens.
8. lens test device as claimed in claim 7; It is characterized in that; Said lens test device further comprises a control module; Said control module electrically connects with said driver module and said CIS respectively, handles with the signal that said CIS is obtained, and controls said driver module and carry out action accordingly.
9. lens test device as claimed in claim 1 is characterized in that said pressure head can be changed, and it is removably installed in the pressing end of said depression bar, to carry out corresponding pressing according to different camera lenses.
10. lens test device as claimed in claim 1 is characterized in that, said CIS is the charge-coupled device (CCD) CIS, perhaps the CMOS imager sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102894142A CN102411256A (en) | 2010-09-24 | 2010-09-24 | Lens testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102894142A CN102411256A (en) | 2010-09-24 | 2010-09-24 | Lens testing device |
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| Publication Number | Publication Date |
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| CN102411256A true CN102411256A (en) | 2012-04-11 |
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| CN2010102894142A Pending CN102411256A (en) | 2010-09-24 | 2010-09-24 | Lens testing device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015157962A1 (en) * | 2014-04-17 | 2015-10-22 | 深圳市大疆创新科技有限公司 | Method and apparatus for adjusting lens mounting flatness in real time |
| CN106000896A (en) * | 2016-06-08 | 2016-10-12 | 佛山市联智新创科技有限公司 | Intelligent detecting device for sizes of rollers |
| WO2018119730A1 (en) * | 2016-12-28 | 2018-07-05 | 中国科学院长春光学精密机械与物理研究所 | Optical integrated testing platform |
| CN109254492A (en) * | 2017-07-13 | 2019-01-22 | 宁波舜宇光电信息有限公司 | The transmission system of camera module test |
| WO2019056561A1 (en) * | 2017-09-25 | 2019-03-28 | 深圳市大疆如影科技有限公司 | Lens detection apparatus |
| CN110686870A (en) * | 2019-09-24 | 2020-01-14 | 福建福光股份有限公司 | Image detector for increasing magnification |
| CN112087621A (en) * | 2019-06-14 | 2020-12-15 | 宁波舜宇光电信息有限公司 | Lens detection apparatus and method |
| CN113359382A (en) * | 2021-08-09 | 2021-09-07 | 武汉精测电子集团股份有限公司 | Device suitable for testing camera lenses with different field angles, adjusting method and testing method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015157962A1 (en) * | 2014-04-17 | 2015-10-22 | 深圳市大疆创新科技有限公司 | Method and apparatus for adjusting lens mounting flatness in real time |
| US10375383B2 (en) | 2014-04-17 | 2019-08-06 | SZ DJI Technology Co., Ltd. | Method and apparatus for adjusting installation flatness of lens in real time |
| CN106000896A (en) * | 2016-06-08 | 2016-10-12 | 佛山市联智新创科技有限公司 | Intelligent detecting device for sizes of rollers |
| WO2018119730A1 (en) * | 2016-12-28 | 2018-07-05 | 中国科学院长春光学精密机械与物理研究所 | Optical integrated testing platform |
| CN109254492A (en) * | 2017-07-13 | 2019-01-22 | 宁波舜宇光电信息有限公司 | The transmission system of camera module test |
| CN109254492B (en) * | 2017-07-13 | 2021-02-09 | 宁波舜宇光电信息有限公司 | Transmission system for camera module test |
| WO2019056561A1 (en) * | 2017-09-25 | 2019-03-28 | 深圳市大疆如影科技有限公司 | Lens detection apparatus |
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| CN112087621A (en) * | 2019-06-14 | 2020-12-15 | 宁波舜宇光电信息有限公司 | Lens detection apparatus and method |
| CN110686870A (en) * | 2019-09-24 | 2020-01-14 | 福建福光股份有限公司 | Image detector for increasing magnification |
| CN113359382A (en) * | 2021-08-09 | 2021-09-07 | 武汉精测电子集团股份有限公司 | Device suitable for testing camera lenses with different field angles, adjusting method and testing method |
| CN113359382B (en) * | 2021-08-09 | 2021-12-17 | 武汉精测电子集团股份有限公司 | Device suitable for testing camera lenses with different field angles, adjusting method and testing method |
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Application publication date: 20120411 |