CN109143553B - High-resolution machine vision lens - Google Patents
High-resolution machine vision lens Download PDFInfo
- Publication number
- CN109143553B CN109143553B CN201811219040.XA CN201811219040A CN109143553B CN 109143553 B CN109143553 B CN 109143553B CN 201811219040 A CN201811219040 A CN 201811219040A CN 109143553 B CN109143553 B CN 109143553B
- Authority
- CN
- China
- Prior art keywords
- lens
- refractive index
- machine vision
- focal power
- lens group
- 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.)
- Active
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 41
- 230000005499 meniscus Effects 0.000 claims description 17
- 230000006872 improvement Effects 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses a high-resolution machine vision lens, which comprises a first lens group GA, a second lens group GB and a third lens group GC, wherein the first lens group GA, the second lens group GB and the third lens group GC are sequentially arranged from an object side to an image; the first lens group GA includes a first lens G1, a second lens G2, and a third lens G3; the second lens group GB includes a fourth lens G4, a fifth lens G5; the third lens group GC includes a first cemented lens U1, a second cemented lens U2, a tenth lens G10; the focal length of the optical system is f, the focal length of the first lens group GA is fGA, the focal length of the second lens group GB fGB, and the focal length of the third lens group GC fGC, which satisfy the relation: the machine vision lens of 0.8< | fGA/f| <1.4,1.40< | fGB/f| <2.20,2.05< | fGC/f| <3.40 has the characteristics of high resolution and low distortion, and can be matched with a camera with a pixel size of 2.2 mu m.
Description
Technical Field
The invention belongs to the technical field of machine vision, and particularly relates to a high-resolution machine vision lens.
Background
The machine vision system has the functions of measuring, judging and detecting defects and the like on the target piece by using a machine, so that misjudgment during manual operation is reduced or eliminated, and the measuring precision and stability are improved. The method is characterized in that an optical signal is transmitted to a camera through a machine vision lens, the optical signal is converted into an electric signal by the camera and is transmitted to an image processing system, the image processing system performs various operations on collected image information to extract characteristics of a target, and then the on-site equipment action is controlled according to a judging result.
On the one hand, in the large background of industrial automation, the demand for machine vision is increasing, and particularly in numerous industries such as electronic manufacturing, food packaging, precision and the like, the demands for resolution precision, applicable working range, optical distortion and the like of the machine vision lens are increasing. On the other hand, as chip technology continues to advance, the pixel size of the camera is smaller and smaller, which requires further improvement in the resolution of the lens matched therewith. However, the existing fixed focus machine vision lens in China is generally insufficient in resolution precision, and the performance of the camera cannot be fully exerted when the fixed focus machine vision lens is matched with an imaging chip of a small pixel, so that the research and development of the high-resolution machine vision lens are urgent.
Disclosure of Invention
The invention aims at: aiming at the defects of the prior art, the high-resolution machine vision lens has the characteristics of high resolution, wider working distance and low distortion, and can be matched with a camera with a pixel size of 2.2 mu m.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the high-resolution machine vision lens comprises a mechanical system and an optical system arranged in the mechanical system, wherein the optical system comprises a first lens group GA with negative focal power, a second lens group GB with positive focal power and a third lens group GC with positive focal power, which are sequentially arranged from an object side to an image; the first lens group GA comprises a first lens G1 with positive focal power and a meniscus structure, a second lens G2 with negative focal power and a meniscus structure, and a third lens G3 with negative focal power and a biconcave structure, which are sequentially arranged from the object side to the image; the second lens group GB comprises a fourth lens G4 with positive focal power and a meniscus structure, and a fifth lens G5 with positive focal power and a meniscus structure, wherein the fourth lens G4 with positive focal power and the meniscus structure are sequentially arranged from the object side to the image side; the third lens group GC includes a first cemented lens U1, a second cemented lens U2, a tenth lens G10 having positive power, a biconvex structure, which are disposed in order from the object side to the image; the first cemented lens U1 is formed by a sixth lens G6 with negative focal power and a meniscus structure and a seventh lens G7 with positive focal power and a biconvex structure; the second cemented lens U2 is formed by a eighth lens G8 with negative focal power and a biconcave structure and a ninth lens G9 with positive focal power and a biconvex structure; the focal length of the optical system is f, the focal length of the first lens group GA is fGA, the focal length of the second lens group GB is fGB, and the focal length of the third lens group GC is fGC, which satisfy the relation: 0.8< | fGA/f| <1.4,1.40< | fGB/f| <2.20,2.05< | fGC/f| <3.40.
As an improvement of the high-resolution machine vision lens, the distance TTL from the vertex of the front surface of the first lens G1 to the photosensitive element and the focal length f of the optical system satisfy the relation |ttl/f| >7.2.
As an improvement of the high-resolution machine vision lens, the optical back intercept BFL of the optical system and the focal length f of the optical system satisfy the relation |bfl/f| >1.5.
As an improvement of the high-resolution machine vision lens, the half image height y 'of the optical system and the focal length f of the optical system meet the relation of |y'/f| >0.48.
As an improvement of the high-resolution machine vision lens, the refractive index of the first lens G1 is n1, and the refractive index n1 satisfies n1>1.8; the refractive index of the second lens G2 is n2, and the refractive index n2 of the second lens G2 meets n2>1.85; the refractive index of the third lens G3 is n3, and the refractive index n3 of the third lens G3 meets n3>1.95; the refractive index of the fourth lens G4 is n4, and the refractive index n4 of the fourth lens G4 meets the requirement that n4 is more than 1.95; the refractive index of the fifth lens G5 is n5, and the refractive index n5 of the fifth lens G5 meets n5>1.90; the refractive index of the tenth lens G10 is n10, and the refractive index n10 satisfies n10>1.85.
As an improvement of the high-resolution machine vision lens of the present invention, the refractive index of the sixth lens G6 is n6, the abbe number is v6, the refractive index of the seventh lens G7 is n7, the abbe number is v7, and the refractive indexes n7 and n7 satisfy the relation: n6>1.95, n7<1.55, the abbe numbers of which satisfy the relation: v6<35, v7>75.
As an improvement of the high-resolution machine vision lens of the present invention, the refractive index of the eighth lens G8 is n8, the abbe number is v8, the refractive index of the ninth lens G9 is n9, the abbe number is v9, and the refractive indexes n8 and n9 satisfy the relation: n8>1.80, n9>1.70, and the Abbe numbers thereof satisfy the relation: v8<30, v9>45.
As an improvement of the high-resolution machine vision lens, the invention further comprises a diaphragm, wherein the diaphragm is positioned between the fifth lens G5 and the sixth lens G6, the aperture of the diaphragm is a round hole, and the aperture of the diaphragm is adjustable within the range of F2.4-F16.
The invention has the beneficial effects that: the optical system of the high-resolution machine vision lens with the focal length of 8mm is realized through the structure, the maximum imaging surface is phi 9mm, the resolution can reach 230lp/mm, and the width of one line pair (two pixels) is about 4.4um, namely one pixel is 2.2um; when the corresponding maximum imaging chip is 1/1.8', the pixel can reach 800 ten thousand, and the full-field optical distortion is lower than 0.5%; the floating focusing mode is adopted, so that clear focusing with the working distance of 50mm to infinity is realized, different application requirements can be met, and the clear aperture can be flexibly adjusted.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of an optical system according to the present invention;
FIG. 3 is a graph of MTF of an optical system according to the present invention;
wherein, 0-optical system; 1-diaphragm.
Detailed Description
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The present invention will be described in further detail below with reference to the drawings, but is not limited thereto.
As shown in fig. 1 to 3, a high-resolution machine vision lens includes a mechanical system and an optical system 0 mounted inside the mechanical system, the optical system 0 including a first lens group GA having negative power, a second lens group GB having positive power, and a third lens group GC having positive power, which are sequentially disposed from an object side to an image; the first lens group GA comprises a first lens G1 with positive focal power and a meniscus structure, a second lens G2 with negative focal power and a meniscus structure, and a third lens G3 with negative focal power and a biconcave structure, which are sequentially arranged from the object side to the image; the second lens group GB comprises a fourth lens G4 with positive focal power and a meniscus structure, and a fifth lens G5 with positive focal power and a meniscus structure, which are sequentially arranged from the object side to the image side; the third lens group GC includes a first cemented lens U1, a second cemented lens U2, a tenth lens G10 having a positive power, a biconvex structure, which are disposed in order from the object side to the image; the first cemented lens U1 is cemented with a sixth lens G6 having a negative power, a meniscus configuration, and a seventh lens G7 having a positive power, a biconvex configuration; the second cemented lens U2 is formed by a eighth lens G8 with negative focal power and a biconcave structure and a ninth lens G9 with positive focal power and a biconvex structure; the focal length of the optical system 0 is f, the focal length of the first lens group GA is fGA, the focal length of the second lens group GB fGB, and the focal length of the third lens group GC fGC, which satisfy the relation: 0.8< | fGA/f| <1.4,1.40< | fGB/f| <2.20,2.05< | fGC/f| <3.40.
Preferably, the distance TTL from the vertex of the front surface of the first lens G1 to the photosensitive element and the focal length f of the optical system 0 satisfy the relation |ttl/f| >7.2.
Preferably, the optical back intercept BFL of the optical system 0 and the focal length f of the optical system 0 satisfy the relation |bfl/f| >1.5.
Preferably, the half image height y 'of the optical system 0 and the focal length f of the optical system 0 satisfy the relation |y'/f| >0.48.
Preferably, the refractive index of the first lens G1 is n1, and the refractive index n1 thereof satisfies n1>1.8; the refractive index of the second lens G2 is n2, and the refractive index n2 of the second lens G2 satisfies n2>1.85; the refractive index of the third lens G3 is n3, and the refractive index n3 of the third lens G3 satisfies n3>1.95; the refractive index of the fourth lens G4 is n4, and the refractive index n4 of the fourth lens G4 satisfies n4>1.95; the refractive index of the fifth lens G5 is n5, and the refractive index n5 thereof satisfies n5>1.90; the tenth lens G10 has a refractive index n10, and the refractive index n10 satisfies n10>1.85.
Preferably, the refractive index of the sixth lens G6 is n6, the abbe number is v6, the refractive index of the seventh lens G7 is n7, the abbe number is v7, and the refractive indices n7 and n7 satisfy the relation: n6>1.95, n7<1.55, the abbe numbers of which satisfy the relation: v6<35, v7>75.
Preferably, the refractive index of the eighth lens G8 is n8, the abbe number is v8, the refractive index of the ninth lens G9 is n9, the abbe number is v9, and the refractive indices n8 and n9 satisfy the relation: n8>1.80, n9>1.70, and the Abbe numbers thereof satisfy the relation: v8<30, v9>45.
Preferably, the lens assembly further comprises a diaphragm 1, the diaphragm 1 is positioned between the fifth lens G5 and the sixth lens G6, the aperture of the diaphragm 1 is a round hole, the aperture of the diaphragm 1 is adjustable within the range from F2.4 to F16, when the object distance changes, the second lens group GB moves back and forth in the optical axis direction to focus, and the first lens group GA and the third lens group GC are not moved.
In this example, the optical system data is as follows:
in this example, the focal length F of the optical system is 8mm, the maximum aperture is f# =2.4, the combined focal length fGA = -8.59mm of the first lens group, the combined focal length fGB =14.15 mm of the second lens group, the combined focal length fGC =20.8 mm of the third lens group, the distance ttl=59.3 mm from the front surface vertex of the first lens G1 to the photosensitive element, the optical back intercept bfl=13.3 mm, and the half image height y' =4.5 mm.
Fig. 3 shows an MTF graph of the present embodiment, where the MTF value of the full field of view is greater than 0.3 at 230lp/mm, and the theoretical resolution accuracy can reach 2.2 micrometers, so as to implement high resolution imaging of the optical system.
Through the structure, the optical system of the high-resolution machine vision lens with the focal length of 8mm is realized, the maximum imaging surface is phi 9mm, the resolution can reach 230lp/mm, namely, when the corresponding maximum imaging chip is 1/1.8', the pixel can reach 8 megapixels, and the full-view optical aberration is lower than 0.5%; the floating focusing mode is adopted, so that clear focusing with the working distance of 50mm to infinity is realized, different application requirements can be met, and the clear aperture can be flexibly adjusted.
While the foregoing description illustrates and describes several preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (8)
1. A high-resolution machine vision lens is characterized in that: the optical system (0) comprises a first lens group GA with negative focal power, a second lens group GB with positive focal power and a third lens group GC with positive focal power, which are sequentially arranged from the object side to the image side; the first lens group GA comprises a first lens G1 with positive focal power and a meniscus structure, a second lens G2 with negative focal power and a meniscus structure, and a third lens G3 with negative focal power and a biconcave structure, which are sequentially arranged from the object side to the image; the second lens group GB comprises a fourth lens G4 with positive focal power and a meniscus structure, and a fifth lens G5 with positive focal power and a meniscus structure, wherein the fourth lens G4 with positive focal power and the meniscus structure are sequentially arranged from the object side to the image side; the third lens group GC includes a first cemented lens U1, a second cemented lens U2, a tenth lens G10 having positive power, a biconvex structure, which are disposed in order from the object side to the image; the first cemented lens U1 is formed by a sixth lens G6 with negative focal power and a meniscus structure and a seventh lens G7 with positive focal power and a biconvex structure; the second cemented lens U2 is formed by a eighth lens G8 with negative focal power and a biconcave structure and a ninth lens G9 with positive focal power and a biconvex structure; the focal length of the optical system (0) is f, the focal length of the first lens group GA is fGA, the focal length of the second lens group GB is fGB, and the focal length of the third lens group GC is fGC, which satisfy the relation: 0.8< | fGA/f| <1.4,1.40< | fGB/f| <2.20,2.05< | fGC/f| <3.40.
2. The high resolution machine vision lens of claim 1, wherein: the distance TTL from the vertex of the front surface of the first lens G1 to the photosensitive element and the focal length f of the optical system (0) meet the relation |TTL/f| >7.2.
3. The high resolution machine vision lens of claim 1, wherein: the optical back intercept BFL of the optical system (0) and the focal length f of the optical system (0) satisfy the relation |BFL/f| >1.5.
4. The high resolution machine vision lens of claim 1, wherein: the half image height y 'of the optical system (0) and the focal length f of the optical system (0) satisfy the relation |y'/f| >0.48.
5. The high resolution machine vision lens of claim 1, wherein: the refractive index of the first lens G1 is n1, and the refractive index n1 of the first lens G1 meets n1>1.8; the refractive index of the second lens G2 is n2, and the refractive index n2 of the second lens G2 meets n2>1.85; the refractive index of the third lens G3 is n3, and the refractive index n3 of the third lens G3 meets n3>1.95; the refractive index of the fourth lens G4 is n4, and the refractive index n4 of the fourth lens G4 meets the requirement that n4 is more than 1.95; the refractive index of the fifth lens G5 is n5, and the refractive index n5 of the fifth lens G5 meets n5>1.90; the refractive index of the tenth lens G10 is n10, and the refractive index n10 satisfies n10>1.85.
6. The high resolution machine vision lens of claim 1, wherein: the refractive index of the sixth lens G6 is n6, the abbe number is v6, the refractive index of the seventh lens G7 is n7, the abbe number is v7, and the refractive indexes n7 and n7 satisfy the relation: n6>1.95, n7<1.55, the abbe numbers of which satisfy the relation: v6<35, v7>75.
7. The high resolution machine vision lens of claim 1, wherein: the refractive index of the eighth lens G8 is n8, the abbe number is v8, the refractive index of the ninth lens G9 is n9, the abbe number is v9, and the refractive indexes n8 and n9 satisfy the relation: n8>1.80, n9>1.70, and the Abbe numbers thereof satisfy the relation: v8<30, v9>45.
8. The high resolution machine vision lens of claim 1, wherein: the lens further comprises a diaphragm (1), the diaphragm (1) is positioned between the fifth lens G5 and the sixth lens G6, the aperture of the diaphragm (1) is a round hole, and the aperture of the diaphragm (1) is adjustable within the range of F2.4-F16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219040.XA CN109143553B (en) | 2018-10-19 | 2018-10-19 | High-resolution machine vision lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219040.XA CN109143553B (en) | 2018-10-19 | 2018-10-19 | High-resolution machine vision lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109143553A CN109143553A (en) | 2019-01-04 |
| CN109143553B true CN109143553B (en) | 2024-02-02 |
Family
ID=64808781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811219040.XA Active CN109143553B (en) | 2018-10-19 | 2018-10-19 | High-resolution machine vision lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109143553B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633875B (en) * | 2019-01-14 | 2023-10-27 | 广东奥普特科技股份有限公司 | Telecentric lens capable of continuously changing magnification |
| CN109884779B (en) * | 2019-03-15 | 2023-10-27 | 广东奥普特科技股份有限公司 | Low-distortion lens |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001281545A (en) * | 1999-10-06 | 2001-10-10 | Canon Inc | Zoom lens and optical equipment using the same |
| JP2004157195A (en) * | 2002-11-01 | 2004-06-03 | Ricoh Co Ltd | Zoom lens, camera and personal digital assistant device |
| CN1661417A (en) * | 2004-02-24 | 2005-08-31 | 三星电子株式会社 | Retrofocus type projection optical system |
| JP2009186570A (en) * | 2008-02-04 | 2009-08-20 | Canon Inc | Zoom lens and imaging apparatus having the same |
| JP2013171165A (en) * | 2012-02-21 | 2013-09-02 | Konica Minolta Inc | Zoom lens, imaging optical device, and digital equipment |
| CN105467566A (en) * | 2016-01-07 | 2016-04-06 | 东莞市宇瞳光学科技股份有限公司 | Large-aperture wide-angle zoom lens |
| CN105866929A (en) * | 2016-06-03 | 2016-08-17 | 福建师范大学 | Machine vision lens with large visual field and large aperture and imaging method |
| CN106226889A (en) * | 2016-08-25 | 2016-12-14 | 厦门爱劳德光电有限公司 | A kind of 12,000,000 pixel fish eye lenses |
| CN206002754U (en) * | 2016-08-25 | 2017-03-08 | 厦门爱劳德光电有限公司 | A kind of 12,000,000 pixel fish eye lenses |
| CN208969324U (en) * | 2018-10-19 | 2019-06-11 | 广东奥普特科技股份有限公司 | A kind of high-resolution machine visual lens |
-
2018
- 2018-10-19 CN CN201811219040.XA patent/CN109143553B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001281545A (en) * | 1999-10-06 | 2001-10-10 | Canon Inc | Zoom lens and optical equipment using the same |
| JP2004157195A (en) * | 2002-11-01 | 2004-06-03 | Ricoh Co Ltd | Zoom lens, camera and personal digital assistant device |
| CN1661417A (en) * | 2004-02-24 | 2005-08-31 | 三星电子株式会社 | Retrofocus type projection optical system |
| JP2009186570A (en) * | 2008-02-04 | 2009-08-20 | Canon Inc | Zoom lens and imaging apparatus having the same |
| JP2013171165A (en) * | 2012-02-21 | 2013-09-02 | Konica Minolta Inc | Zoom lens, imaging optical device, and digital equipment |
| CN105467566A (en) * | 2016-01-07 | 2016-04-06 | 东莞市宇瞳光学科技股份有限公司 | Large-aperture wide-angle zoom lens |
| CN105866929A (en) * | 2016-06-03 | 2016-08-17 | 福建师范大学 | Machine vision lens with large visual field and large aperture and imaging method |
| CN106226889A (en) * | 2016-08-25 | 2016-12-14 | 厦门爱劳德光电有限公司 | A kind of 12,000,000 pixel fish eye lenses |
| CN206002754U (en) * | 2016-08-25 | 2017-03-08 | 厦门爱劳德光电有限公司 | A kind of 12,000,000 pixel fish eye lenses |
| CN208969324U (en) * | 2018-10-19 | 2019-06-11 | 广东奥普特科技股份有限公司 | A kind of high-resolution machine visual lens |
Non-Patent Citations (4)
| Title |
|---|
| 可变焦距机器视觉镜头光学系统设计;刘巧玲;《应用光学》;第第36卷卷(第第2期期);全文 * |
| 基于机器视觉的远心物镜设计;陈姝君;《电子科学技术》;第第4卷卷(第第4期期);全文 * |
| 基于机器视觉的高分辨率双远心物镜设计;李明东;《光学仪器》;第第38卷卷(第第3期期);全文 * |
| 机器视觉系统的设计;穆向阳;《西安石油大学学报（自然科学版）》;第第22卷卷(第第6期期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109143553A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109116517B (en) | High-resolution linear scanning machine vision lens with high magnification and large target surface | |
| CN203786375U (en) | Imaging lens and imaging device comprising same | |
| JP5370109B2 (en) | Imaging lens and imaging apparatus | |
| CN108594401B (en) | Large target surface fixed focus machine vision linear array lens | |
| CN108535834B (en) | Optical lens and imaging apparatus | |
| CN109407279A (en) | Wide-angle lens and imaging device | |
| CN105589172A (en) | Optical lens assembly for image capturing, image capturing device and electronic device | |
| CN109581630B (en) | Machine vision camera lens is swept to big light ring low distortion prime line | |
| CN108681036B (en) | 35mm large target surface machine vision line scanning lens | |
| CN110007443B (en) | 12K line scanning lens | |
| CN103529541A (en) | Zoom lens and image-pickup apparatus | |
| CN109143553B (en) | High-resolution machine vision lens | |
| CN210348042U (en) | High-resolution lens | |
| CN108710195B (en) | Optical system of large target surface machine vision lens | |
| CN110007433B (en) | Fixed focal line scanning lens | |
| CN109100856B (en) | High-resolution large-target-surface-magnification-adjustable line-scanning machine vision lens | |
| CN108919466B (en) | High-resolution wide-working-distance fixed-focus machine vision lens | |
| CN208969324U (en) | A kind of high-resolution machine visual lens | |
| CN110018554B (en) | Wide-angle machine vision lens | |
| CN208953765U (en) | A kind of big target surface high-res line of high magnification sweeps machine visual lens | |
| CN110376715B (en) | High-resolution prime lens | |
| CN111190269A (en) | High-resolution industrial lens | |
| CN109164561B (en) | Machine vision lens | |
| CN109581637B (en) | Imaging lens | |
| CN109001890A (en) | A kind of width operating distance high-resolution machine visual lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |