CN100529744C - Optical detection device and detection method - Google Patents
Optical detection device and detection method Download PDFInfo
- Publication number
- CN100529744C CN100529744C CNB2004100919116A CN200410091911A CN100529744C CN 100529744 C CN100529744 C CN 100529744C CN B2004100919116 A CNB2004100919116 A CN B2004100919116A CN 200410091911 A CN200410091911 A CN 200410091911A CN 100529744 C CN100529744 C CN 100529744C
- Authority
- CN
- China
- Prior art keywords
- flat
- panel screens
- computer system
- image sensor
- detection apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to an optical detecting device and method for an optical lens module. And the optical detecting device comprises a plane display, a video sensor and a computer system for controlling the plane display and providing different test patterns, where a to-be-detected optical lens module is between the plane display and the video sensor, and the test patterns displayed by the plane display are imaged on the video sensor. The invention makes the detection process more short-cut.
Description
Technical field
The present invention relates to a kind of optical detection apparatus and detection method, relate in particular to a kind of optical detection apparatus and detection method that is used for the detection optical camera lens.
Background technology
In the digitized video product, the ingredient that the optics module is normally indispensable, and the quality of optical lens quality in the optics module directly influence the display quality of optics module and even digitized video product.
The optical detection apparatus of a kind of prior art optical lens resolution (Resolution) as shown in Figure 1.This optical detection apparatus 1 mainly comprises a source of parallel light 10, a penetration pattern test board 11 and a linear charge coupling element (Charge Coupled Device, CCD) 13.
During detection, optical lens module 12 is arranged between penetration pattern test board 11 and the linear CCD 13, the parallel beam that source of parallel light 10 is sent is through after the penetration pattern test board 11, enter optical lens module 12, projection on optical lens module 12, through optical lens module 12, this penetration pattern test board 11 be projected in imaging on the linear CCD 13, thereby obtain the resolution data of first group of optical lens module 12.Change the pattern of penetration pattern test board 11, repeat aforesaid operations, can obtain the resolution data of many these optical lens modules 12 of group.(Modulatioa TransferFunction, operational analysis MTF) records the resolution of this optical lens module 12 afterwards to carry out the modulation transition function afterwards.
Adopt this optical detection apparatus 1 detection optical camera lens module 12, can test its resolution, but because penetration pattern test board 11 does not provide More (Moire) pattern, thereby if will the degree of distortion (Diatortion) and the colourity data such as (Color) of this optical lens module 12 be detected, then must change this penetration pattern test board 11, perhaps reset test environment.
The optical detection apparatus of another kind of prior art optical lens resolution as shown in Figure 2.This optical detection apparatus 2 mainly comprises a source of parallel light 20, a penetration pattern test board 21 and a linear CCD 23, and wherein this penetration pattern test board 21 is convex lens structures.
During detection, optical lens module 22 is arranged between penetration pattern test board 21 and the linear CCD 23, the parallel beam that source of parallel light 20 is sent is through after the penetration pattern test board 21, form a real image that stands upside down in optical lens module 22 the place aheads, behind the light process optical lens module 22 of this real image, imaging on linear CCD 23, thus the resolution data of first group of optical lens module 22 obtained.Change the pattern of penetration pattern test board 21, repeat aforesaid operations, can obtain the resolution data of many these optical lens modules 22 of group.Carry out recording after the MTF operational analysis resolution of this optical lens module 22 afterwards.
Equally, this optical detection apparatus 2 is not because penetration pattern test board 21 provides More's pattern, thereby, then must change this penetration pattern test board 21 if will detect to data such as the degree of distortion of this optical lens module 22 and colourities, perhaps reset test environment.Thereby cause test speed slower.
Summary of the invention
For overcoming the slower defective of prior art optical detection apparatus test speed, the invention provides a kind of test speed optical detection apparatus comparatively efficiently.
The present invention also provides a kind of test speed optical detecting method comparatively efficiently.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of optical detection apparatus is provided, it comprises a flat-panel screens, the computer system of the test pattern that one image sensor is different with this flat-panel screens demonstration of a control, this computer system is connected with this image sensor, optical lens module to be measured is between this flat-panel screens and image sensor, and the test pattern that flat-panel screens shows is also imported this computer system with this image data via the imaging on this image sensor of this optical lens module to be measured to obtain the test pattern corresponding image data different with this.
Another technical scheme that technical solution problem of the present invention is adopted is: a kind of optical detecting method is provided, and it may further comprise the steps: a flat-panel screens and a computer system are provided, and this flat-panel screens is connected with this computer system; One image sensor that is connected with this computer system is provided; Optical lens module to be measured is arranged between flat-panel screens and the image sensor; Make flat-panel screens show More's pattern of focusing by computer system control, what simultaneously image sensor will obtain imports computer system and is presented on the monitor of computer system with this More pattern corresponding image data of focusing, adjust the relative position between flat-panel screens, optical lens module and the image sensor, finish focusing; Show different test patterns by the computer system control flat-panel screens, image sensor obtains different test pattern corresponding image data, and the input computer system; In conjunction with the spatial frequency values of different test pattern correspondences and different test pattern corresponding image data, utilize computer system to calculate optic regulating transfer function value under different test patterns and the corresponding spatial frequency condition, thereby calculate the resolution of this optical lens module.
Compared with prior art, optical detection apparatus of the present invention adopts the computer system control flat-panel screens to show different test patterns with detection method, thereby can show different test patterns more fast and easily, obtain relevant image data, adopt computer system that resulting image data is handled, calculate the optic regulating transfer function value of different test pattern correspondences.In addition, because the present invention at first adopts the More to focus on test pattern before test and measures the focal length of this optical lens module related datas such as (Focus), thereby prefocus before the follow-up test action carrying out, can accelerate test speed greatly, and make the accuracy of follow-up test greatly improve.
Description of drawings
Fig. 1 is a kind of working state schematic representation of prior art optical detection apparatus.
Fig. 2 is the working state schematic representation of another kind of prior art optical detection apparatus.
Fig. 3 is the schematic perspective view of optical detection apparatus of the present invention.
Fig. 4 is that the More focuses on test pattern.
Fig. 5 is a low spatial frequency longitudinal stripe test pattern.
Fig. 6 is a high spatial frequency longitudinal stripe test pattern.
Fig. 7 is a spatial frequency horizontal stripe test pattern.
Fig. 8 is a high spatial frequency horizontal stripe test pattern.
Fig. 9 is high spatial frequency+45 degree striped test patterns.
Figure 10 is high spatial frequency-45 a degree striped test pattern.
Figure 11 is low spatial frequency+45 degree striped test patterns.
Figure 12 is low spatial frequency-45 a degree striped test pattern.
Figure 13 is a color sense response test pattern.
Figure 14 is an optical lens module distortion measurement pattern.
Embodiment
Seeing also Fig. 3, is the structural representation of optical detection apparatus of the present invention.This optical detection apparatus 3 mainly comprises a flat-panel screens 31, an image sensor 33, a computer system 35 and is connected the Signal transfer box 34 of computer system 35 and image sensor 33.
This flat-panel screens 31 is arranged on the transparent upper support platform 40, and display surface is over against image sensor 33.This flat-panel screens 31 has higher resolution, and equalization point is apart between 0.2～0.3mm.
This upper support platform 40 links together by four pillars 42 with lower support platform 46, and pillar 42 is perpendicular to the plane at these upper support platform 40 places and the plane at lower support platform 46 places; Be provided with the rule 44 parallel near the pillar 42 with pillar 42.Be movable the setting between this pillar 42 and the flat-panel screens 31, flat-panel screens 31 can along this pillar about in the of 42 spiral move, its displacement can be measured by the scale on the rule 44.
During detection, optical lens module 32 is arranged between flat-panel screens 31 and the image sensor 33, computer system 35 control plane displays 31 show different test patterns, this test pattern is through this optical lens module 32 imaging on image sensor 33, thereby image sensor 33 can obtain this test pattern corresponding image data, and this image data is by Signal transfer box 34 input computer systems 35.Operational computations machine system 35 shows from Fig. 4 to test pattern shown in Figure 12 thereby control this flat-panel screens 31.
Utilize computer system 35 control plane displays 31 to show that earlier More shown in Figure 4 focuses on test pattern, adjust the relative position between flat-panel screens 31, image sensor 33 and the optical lens module 32, thereby on image sensor 33, form different image datas, utilize computer system 35 to handle this different image data, to obtain the focal length related data of optical lens module 32, adjust this flat-panel screens 31 so that it is positioned at focal length place or the inside and outside appropriate location of focal length, thus ready for obtaining other data.
Displayed map 5 to low spatial frequency longitudinal stripe test pattern shown in Figure 12, high spatial frequency longitudinal stripe test pattern, low spatial frequency horizontal stripe test pattern, high spatial frequency horizontal stripe test pattern, high spatial frequency+45 degree striped test test patterns, high spatial frequency-45 degree striped test pattern, low spatial frequency+45 degree striped test patterns, low spatial frequency-45 spent the striped test pattern successively afterwards.Above-mentioned test pattern is forming different image datas through optical lens module 32 on image sensor 33, this image data is imported computer systems 35 via Signal transfer box 34, and is shown by the monitor of this computer system 35.
Spatial frequency values and this spatial frequency test pattern corresponding image data in conjunction with this striped test pattern correspondence, utilize computer system 35 to calculate optic regulating transfer function value under different directions and the spatial frequency condition, calculate the resolution of this optical lens module 32.
In addition, adopt this optical detection apparatus, show test pattern shown in Figure 13, can detect the color sense response of this optical lens module 32 by computer system 35 control break flat-panel screens 31; Show test pattern shown in Figure 14 by computer system 35 control break flat-panel screens 31, can also detect the one-tenth image distortion situation of this optical lens module 32.
Compared with prior art, optical detection apparatus 3 of the present invention adopts computer system 35 control plane displays 31 to show different test patterns, thereby can show different test patterns more fast and easily, obtain relevant image data, adopt 35 pairs of resulting image datas of computer system to handle, calculate the optic regulating transfer function value of different test pattern correspondences.In addition, because the present invention at first adopts the More to focus on the related datas such as focal length that test pattern is measured this optical lens module 32 before test, thereby prefocus before the follow-up test action carrying out, can accelerate test speed greatly, and make the accuracy of follow-up test greatly improve.
In addition, described flat-panel screens 31 can adopt LCD, plasma display etc.Image sensor 33 can adopt complementary metal oxide semiconductor (CMOS) (ComplementaryMetal Oxide Semiconductor, CMOS) sensor or ccd sensor.On this pillar 42 many uniform screw threads can be set, to regulate the relative position between this flat-panel screens 31 and the optical lens module 32; Also can adopt the mode of dangling to make this flat-panel screens 31 unsettled settings, and with optical lens module 32 place plane parallel, utilize the device that dangles to regulate the relative position of this flat-panel screens 31 and optical lens module 32.This computer system 35 can be made of independent computing machine, also can be made of jointly a control computer and an anacom.
Claims (9)
1. optical detection apparatus, it comprises that a flat-panel screens, an image sensor and this flat-panel screens of control show the computer system of different test patterns, this computer system is connected with this image sensor, optical lens module to be measured is between this flat-panel screens and image sensor, and the test pattern that flat-panel screens shows is also imported this computer system with this image data via the imaging on this image sensor of this optical lens module to be measured to obtain the test pattern corresponding image data different with this.
2. optical detection apparatus as claimed in claim 1 is characterized in that: this optical detection apparatus also comprises a Signal transfer box, and this image sensor is imported this computer system by the test pattern corresponding image data that this Signal transfer box will be different with this.
3. optical detection apparatus as claimed in claim 1 is characterized in that: this flat-panel screens is LCD or plasma display.
4. optical detection apparatus as claimed in claim 1 is characterized in that: this image sensor is complementary metal oxide semiconductor (CMOS) sensor or charge coupled cell sensor.
5. optical detection apparatus as claimed in claim 1, it is characterized in that: this optical detection apparatus also comprises a transparent upper support platform, one with the lower support platform of this upper support platform opposing parallel setting and be connected four pillars of this upper support platform and this lower support platform, this flat-panel screens is arranged on this upper support platform, display surface is over against image sensor, this image sensor is positioned on this lower support platform, and this flat-panel screens can move along spiral about this pillar.
6. optical detection apparatus as claimed in claim 5, it is characterized in that: this optical detection apparatus comprises that also one is used to measure this flat-panel screens along this pillar rule of the distance that moves of spiral up and down, and this rule is arranged near wherein pillar in these four pillars.
7. optical detection apparatus as claimed in claim 5 is characterized in that: have the even screw thread that is used to measure the distance that flat-panel screens moves on this pillar.
8. optical detection apparatus as claimed in claim 1, it is characterized in that: this optical detection apparatus also comprises the device that dangles, this device that dangles can make the unsettled plane that is parallel to this optical lens module place of this flat-panel screens, and can make this flat-panel screens move to change the relative position of itself and optical lens module.
9. optical detecting method, it may further comprise the steps: a flat-panel screens and a computer system are provided, and this flat-panel screens is connected with this computer system; One image sensor that is connected with this computer system is provided; Optical lens module to be measured is arranged between flat-panel screens and the image sensor; Make flat-panel screens show More's pattern of focusing by computer system control, what simultaneously image sensor will obtain imports computer system and is presented on the monitor of computer system with this More pattern corresponding image data of focusing, adjust the relative position between flat-panel screens, optical lens module and the image sensor, finish focusing; Show different test patterns by the computer system control flat-panel screens, image sensor obtains different test pattern corresponding image data, and the input computer system; In conjunction with the spatial frequency values of different test pattern correspondences and different test pattern corresponding image data, utilize computer system to calculate optic regulating transfer function value under different test patterns and the corresponding spatial frequency condition, thereby calculate the resolution of this optical lens module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100919116A CN100529744C (en) | 2004-12-29 | 2004-12-29 | Optical detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100919116A CN100529744C (en) | 2004-12-29 | 2004-12-29 | Optical detection device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796987A CN1796987A (en) | 2006-07-05 |
| CN100529744C true CN100529744C (en) | 2009-08-19 |
Family
ID=36818197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100919116A Expired - Fee Related CN100529744C (en) | 2004-12-29 | 2004-12-29 | Optical detection device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100529744C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206180B (en) * | 2006-12-20 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Lens module detecting device and detecting method |
| CN101650258B (en) * | 2008-08-14 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Lens module detector |
| CN102385333B (en) * | 2011-08-01 | 2013-07-31 | 西安石油大学 | Fault diagnosis method for petroleum instrument |
| 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 |
| CN105405115B (en) * | 2014-08-19 | 2018-11-23 | 宁波舜宇光电信息有限公司 | A kind of image mould group is to heart system and method |
| CN108827979A (en) * | 2018-04-23 | 2018-11-16 | 东莞高伟光学电子有限公司 | A kind of module group lens appearance detecting method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046389A (en) * | 1989-04-01 | 1990-10-24 | 中国科学院上海光学精密机械研究所 | Lens optical center positioning instrument |
| CN1430049A (en) * | 2001-12-18 | 2003-07-16 | 奥林巴斯光学工业株式会社 | Delineating performance testing device, method and camera testing by the method |
| CN2636219Y (en) * | 2003-07-24 | 2004-08-25 | 信统科技股份有限公司 | Optics lens tester |
-
2004
- 2004-12-29 CN CNB2004100919116A patent/CN100529744C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046389A (en) * | 1989-04-01 | 1990-10-24 | 中国科学院上海光学精密机械研究所 | Lens optical center positioning instrument |
| CN1430049A (en) * | 2001-12-18 | 2003-07-16 | 奥林巴斯光学工业株式会社 | Delineating performance testing device, method and camera testing by the method |
| CN2636219Y (en) * | 2003-07-24 | 2004-08-25 | 信统科技股份有限公司 | Optics lens tester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1796987A (en) | 2006-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8339463B2 (en) | Camera lens calibration system | |
| CN107024339B (en) | Testing device and method for head-mounted display equipment | |
| CN101458441B (en) | Wire pair testing drawing board, lens optical parsing and measuring system and measuring method thereof | |
| CN103108114A (en) | Camera system for aligning components of a PCB | |
| CN109862345B (en) | Method and system for testing field angle | |
| EP2565618B1 (en) | Hardness tester | |
| CN109348129A (en) | A kind of the clarity detection method and system of cameras with fixed focus | |
| CN109859155A (en) | Image distortion detection method and system | |
| CN102313525B (en) | Laser beam parallelism regulating system and regulating method thereof | |
| CN206670551U (en) | Automatic Visual Inspection instrument | |
| CN106524955A (en) | Plane equal thickness interference digital display measurement device and method of measuring optical flat flatness | |
| CN100529744C (en) | Optical detection device and detection method | |
| JP2015108582A (en) | Three-dimensional measurement method and device | |
| CN103176349A (en) | Lens detection device and method | |
| JP5531883B2 (en) | Adjustment method | |
| CN110517616A (en) | A kind of OLED display screen bad point exposure mask positioning system | |
| CN207976139U (en) | Variable is away from optical detection apparatus | |
| CN112361989B (en) | Method for calibrating parameters of measurement system through point cloud uniformity consideration | |
| JP2681745B2 (en) | A method for measuring the vertical and lateral movement of an object to be measured with a speckle pattern using laser light. | |
| CN114689281A (en) | Method for detecting pupil drift of optical module | |
| CN113624458A (en) | Film uniformity detection system based on double-path all-projection light | |
| CN206459815U (en) | A kind of special equipment based on reflected image method detection object surface normal error | |
| CN106768891B (en) | Special equipment for detecting object surface normal error based on reflection image method | |
| KR20100097920A (en) | Apparatus and method for measuring position of a lens system in a camera | |
| TWI259277B (en) | Optical detector and detecting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |