CN109239892A - A kind of inspection of fixed multiplying power optics is as system and its imaging method - Google Patents
A kind of inspection of fixed multiplying power optics is as system and its imaging method Download PDFInfo
- Publication number
- CN109239892A CN109239892A CN201811391679.6A CN201811391679A CN109239892A CN 109239892 A CN109239892 A CN 109239892A CN 201811391679 A CN201811391679 A CN 201811391679A CN 109239892 A CN109239892 A CN 109239892A
- Authority
- CN
- China
- Prior art keywords
- lens
- meniscus shaped
- focal power
- shaped lens
- positive
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The present invention relates to a kind of inspections of fixed multiplying power optics as system, the optics, which is examined, to be made of as system six sheet glass spheric glasses, be successively arranged preceding group of A, diaphragm C from left to right along light incident direction, organize B afterwards, it is described before group A include the meniscus shaped lens A2 that is negative of the biconvex lens A1 that is positive of focal power, focal power, focal power be positive meniscus shaped lens A3, it is described after group B include meniscus shaped lens B3 that the biconcave lens B2 that is negative of the biconvex lens B1 that is positive of focal power, focal power, focal power are positive.The optical system meets double telecentric systems of surveying and requires, it can stablize in certain field depth and be imaged and keep identical enlargement ratio, effectively solve the problems, such as error in judgement, high-res make it have outstanding image quality, can preferably be suitable for the field of high-precision measurement such as dimensional measurement.
Description
Technical field
The present invention relates to a kind of inspections of fixed multiplying power optics as system and its imaging method.
Background technique
In recent years, field of machine vision is quickly grown, and the optics inspection component one of indispensable as it as equipment should have and answer
To the ability of complicated and diversified detection environment.On existing market, optical detection apparatus based on non-telecentric lens, is being detected mostly
Object is there are when position deviation, and optical detection apparatus can not be measured accurately, and bilateral telecentric lens can be in tested object
There are the multiplying powers imaging such as carrying out when defocus, biggish field depth ensures its clarity being imaged under different object distances, incident
Light and emergent light are each perpendicular to testee, efficiently can carry out picture reduction to testee, improve its measurement accuracy.
Summary of the invention
In place of against the above deficiency, a kind of simple fixed multiplying power optics inspection picture system of structure is provided
System and its imaging method.
The technical scheme is that a kind of fixed multiplying power optics inspection is as system, the optics inspection is as system is by six glass
Glass spheric glass is constituted, and is successively arranged preceding group of A, diaphragm C from left to right along light incident direction, is organized B afterwards, is organized A before described and is included
It is meniscus shaped lens A3 that meniscus shaped lens A2 that biconvex lens A1 that focal power is positive, focal power are negative, focal power are positive, described
Group B includes the meniscus shaped lens that the biconcave lens B2 that is negative of the biconvex lens B1 that is positive of focal power, focal power, focal power are positive afterwards
B3。
Further, the meniscus shaped lens A3 that the meniscus shaped lens A2 and focal power that focal power is negative are positive organizes glue before constituting
Piece is closed, the biconcave lens B2 that the biconvex lens B1 and focal power that focal power is positive are negative organizes glue pellet after constituting.
Further, the focal power of the preceding group A is positive, and the rear focal power for organizing B is negative.
Further, set the focal length of optical system as f, biconvex lens A1, meniscus shaped lens A2, meniscus shaped lens A3,
Biconvex lens B1, biconcave lens B2, meniscus shaped lens B3 are respectively f1, f2, f3, f4, f5, f6；It meets following ratio with focal length f
Example: 0.13 < f1/f < 0.16；-0.14<f2/f<-0.11；0.1<f3/f<0.13；0.05<f4/f <0.1；-0.8<f5/f<
0.03；0.12<f6/f<0.15.
Further, f4 and f5 must satisfy: -1.9 < f4/f5 < -1.4.
Further, the material that the biconvex lens A1 is used is flint glass；The material that meniscus shaped lens A2 is used for
Flint glass；The material that meniscus shaped lens A3 is used is crown glass；The material that biconvex lens B1 is used is crown glass；Concave-concave
The material that lens B2 is used is flint glass；The material that meniscus shaped lens B3 is used is crown glass.
Further, the air spacing of the biconvex lens A1 to meniscus shaped lens A2 is 2.8mm；The meniscus shaped lens
The air spacing of A3 to diaphragm C is 43.5mm；The air spacing of the diaphragm C to biconvex lens B1 is 28.9mm；The concave-concave
The air spacing of lens B2 to meniscus shaped lens B3 is 26.6mm；The air distance of meniscus shaped lens B3 to the imaging surface is
26.1mm。
Further, the air gap between the preceding group A and rear group B is 72.4mm.
A kind of inspection of fixed multiplying power optics sequentially includes the following steps: light and successively passes through from left to right as the imaging method of system
After biconvex lens A1, meniscus shaped lens A2, meniscus shaped lens A3, biconvex lens B1, biconcave lens B2, meniscus shaped lens B3 at
Picture.
Compared with prior art, the invention has the following advantages: optics inspection uses six slice structures as system, lead to
The combination of materials form for crossing the high Abbe of positive light coke, the low Abbe of negative power effectively balances such big view lens and is drawn
The color difference problem entered, object space incidence chief ray and image side exit chief ray are parallel to optical axis, make it in certain object distance range
It is inside able to maintain that identical enlargement ratio, ensure that the stability of detection, the maximum chief ray angle of emergence close to zero degree can guarantee
A possibility that big field luminance is unbalance is effectively reduced in its picture brightness uniformity.
Detailed description of the invention
The invention patent is further illustrated with reference to the accompanying drawing.
Fig. 1 is that the optics of the embodiment of the present invention is examined as system schematic.
Fig. 2 is that the Systems for optical inspection of the embodiment of the present invention passes letter figure.
In figure: before A organize A, C diaphragm C, B after organize B, A1 biconvex lens A1, A2 meniscus shaped lens A2, A3 meniscus shaped lens A3,
B1 biconvex lens B1, B2 biconcave lens B2, B3 meniscus shaped lens B3.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Fig. 1~2, a kind of inspection of fixed multiplying power optics is as system, and the optics inspection is as system is by six sheet glass spherical surfaces
Eyeglass is constituted, and is successively arranged preceding group of A, diaphragm C from left to right along light incident direction, is organized B afterwards, and organizing A before described includes focal power
Meniscus shaped lens A3 that meniscus shaped lens A2 that the biconvex lens A1 that is positive, focal power are negative, focal power are positive, it is described after organize B
The meniscus shaped lens B3 that biconcave lens B2 that the biconvex lens B1 that is positive including focal power, focal power are negative, focal power are positive.
In the present embodiment, before the meniscus shaped lens A3 that the meniscus shaped lens A2 and focal power that focal power is negative are positive is constituted
Group glue pellet, the biconcave lens B2 that the biconvex lens B1 and focal power that focal power is positive are negative organize glue pellet after constituting.
In the present embodiment, the focal power of the preceding group A is positive, and the rear focal power for organizing B is negative.
In the present embodiment, the focal length of optical system is set as f, and biconvex lens A1, meniscus shaped lens A2, falcate are saturating
Mirror A3, biconvex lens B1, biconcave lens B2, meniscus shaped lens B3 are respectively f1, f2, f3, f4, f5, f6；It meets with focal length f
Following ratio: 0.13 < f1/f < 0.16；-0.14<f2/f<-0.11；0.1<f3/f<0.13；0.05<f4/f <0.1；-0.8<
f5/f<0.03；0.12<f6/f<0.15.
In the present embodiment, f4 and f5 must satisfy: -1.9 < f4/f5 < -1.4.
In the present embodiment, the material that the biconvex lens A1 is used is flint glass；The material that meniscus shaped lens A2 is used
Material is flint glass；The material that meniscus shaped lens A3 is used is crown glass；The material that biconvex lens B1 is used is crown glass；
The material that biconcave lens B2 is used is flint glass；The material that meniscus shaped lens B3 is used is crown glass；It is glued by improving
The introducing of part aberration is effectively reduced in piece refringence, by the matching of Abbe number and partial dispersion, can be effectively reduced color difference
It introduces, by the methods of focal power adjustment, the control of face type curvature, angle of incidence of light can be effectively reduced, it is quick to reduce each eyeglass
Camera lens actual cost is effectively reduced to reduce the assembling difficulty of entire camera lens, improve machinability in sensitivity.
In the present embodiment, the air spacing of the biconvex lens A1 to meniscus shaped lens A2 is 2.8mm；The falcate
The air spacing of lens A3 to diaphragm C is 43.5mm；The air spacing of the diaphragm C to biconvex lens B1 is 28.9mm；It is described
The air spacing of biconcave lens B2 to meniscus shaped lens B3 is 26.6mm；Air distance of the meniscus shaped lens B3 to imaging surface
For 26.1mm.
In the present embodiment, the air gap between the preceding group A and rear group B is 72.4mm.
A kind of inspection of fixed multiplying power optics sequentially includes the following steps: light and successively passes through from left to right as the imaging method of system
After biconvex lens A1, meniscus shaped lens A2, meniscus shaped lens A3, biconvex lens B1, biconcave lens B2, meniscus shaped lens B3 at
Picture.
In the present embodiment, following optical index has been reached by the optical system that above-mentioned lens set is constituted: the fixation times
Rate optics inspection as system working distance be 110mm, TV distortion≤0.01%, object space telecentricity≤0.01 °, image space telecentricity≤
0.03 °, enlargement ratio=1.5, corresponding chip size is 2/3 ", optics rear cut-off distance L ' >=26.1mm.
In the present embodiment, the parameter of each eyeglass is as shown in the table:
In the present embodiment, as shown in Fig. 2, the Systems for optical inspection is greater than 0.5 in biography functional value of 50 lines to place, have excellent
Image analysis ability, can sufficiently restore testee, and carry out precise measurement.
In conclusion a kind of fixed multiplying power optics inspection provided by the invention is as system, enlargement ratio 1.5 can be right
Large volume of object carries out image checking, and object, image space telecentricity make it can be at same in certain object distance range close to zero degree
The picture of multiplying power.The ability that double gauss structure rectifys distortion can be efficiently used by control object, the focal power of image space and face type, is reduced
The distortion level of image, while its image quality can be made close to diffraction limit under the numerical aperture, it is surveyed with reaching accurate and stablizing
The purpose of amount.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of fixed multiplying power optics inspection is as system, it is characterised in that: the optics inspection is as system is by six sheet glass spheric glasses
It constitutes, is successively arranged preceding group of A, diaphragm C from left to right along light incident direction, organizes B afterwards, organizing A before described includes that focal power is positive
Biconvex lens A1, the meniscus shaped lens A2 that is negative of focal power, focal power be positive meniscus shaped lens A3, it is described after group B include
The meniscus shaped lens B3 that biconcave lens B2 that biconvex lens B1 that focal power is positive, focal power are negative, focal power are positive.
2. fixed multiplying power optics inspection according to claim 1 is as system, it is characterised in that: the falcate that focal power is negative is saturating
The meniscus shaped lens A3 that mirror A2 and focal power are positive organizes glue pellet before constituting, and the biconvex lens B1 that focal power is positive is with focal power
Negative biconcave lens B2 organizes glue pellet after constituting.
3. fixed multiplying power optics inspection according to claim 1 is as system, it is characterised in that: the focal power of group A is before described
Just, the focal power of group B is negative afterwards.
4. fixed multiplying power optics inspection according to claim 1 is as system, it is characterised in that: set the focal length of optical system
For f, biconvex lens A1, meniscus shaped lens A2, meniscus shaped lens A3, biconvex lens B1, biconcave lens B2, meniscus shaped lens B3
Respectively f1, f2, f3, f4, f5, f6；It meets following ratio: 0.13 < f1/f < 0.16 with focal length f；-0.14<f2/f<-
0.11；0.1<f3/f<0.13；0.05<f4/f <0.1；-0.8<f5/f<0.03；0.12<f6/f<0.15.
5. fixed multiplying power optics inspection according to claim 4 is as system, it is characterised in that: f4 and f5 must satisfy: -1.9 <
f4/f5<-1.4。
6. fixed multiplying power optics inspection according to claim 1 is as system, it is characterised in that: what the biconvex lens A1 was used
Material is flint glass；The material that meniscus shaped lens A2 is used is flint glass；The material that meniscus shaped lens A3 is used is crown board
Glass；The material that biconvex lens B1 is used is crown glass；The material that biconcave lens B2 is used is flint glass；Meniscus shaped lens
The material that B3 is used is crown glass.
7. fixed multiplying power optics inspection according to claim 1 is as system, it is characterised in that: the biconvex lens A1 to bent moon
The air spacing of shape lens A2 is 2.8mm；The air spacing of the meniscus shaped lens A3 to diaphragm C is 43.5mm；The diaphragm C
Air spacing to biconvex lens B1 is 28.9mm；The air spacing of the biconcave lens B2 to meniscus shaped lens B3 is
26.6mm；The air distance of the meniscus shaped lens B3 to imaging surface is 26.1mm.
8. fixed multiplying power optics inspection according to claim 1 is as system, it is characterised in that: before described between group A and rear group B
The air gap be 72.4mm.
9. a kind of fixed multiplying power optics inspection is as the imaging method of system, which is characterized in that use according to claims 1-8
A kind of inspection of fixed multiplying power optics sequentially includes the following steps: light from left to right successively through biconvex lens A1, falcate as system
It is imaged after lens A2, meniscus shaped lens A3, biconvex lens B1, biconcave lens B2, meniscus shaped lens B3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391679.6A CN109239892B (en) | 2018-11-21 | 2018-11-21 | Fixed-magnification optical image detection system and imaging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811391679.6A CN109239892B (en) | 2018-11-21 | 2018-11-21 | Fixed-magnification optical image detection system and imaging method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109239892A true CN109239892A (en) | 2019-01-18 |
| CN109239892B CN109239892B (en) | 2023-06-06 |
Family
ID=65076286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811391679.6A Active CN109239892B (en) | 2018-11-21 | 2018-11-21 | Fixed-magnification optical image detection system and imaging method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109239892B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221415A (en) * | 2019-07-08 | 2019-09-10 | 桂林弗克斯光电仪器有限公司 | Big visual field double telecentric optical system |
| CN114166127A (en) * | 2021-12-08 | 2022-03-11 | 福鼎市一雄光学仪器有限公司 | Reinforcing steel bar size detector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150062405A1 (en) * | 2013-08-29 | 2015-03-05 | Genius Electronic Optical Co., Ltd. | Imaging Lens, and Electronic Apparatus Including the Same |
| CN104407431A (en) * | 2014-12-05 | 2015-03-11 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN105467562A (en) * | 2014-09-05 | 2016-04-06 | 玉晶光电(厦门)有限公司 | Optical imaging lens and electronic device |
-
2018
- 2018-11-21 CN CN201811391679.6A patent/CN109239892B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150062405A1 (en) * | 2013-08-29 | 2015-03-05 | Genius Electronic Optical Co., Ltd. | Imaging Lens, and Electronic Apparatus Including the Same |
| CN105467562A (en) * | 2014-09-05 | 2016-04-06 | 玉晶光电(厦门)有限公司 | Optical imaging lens and electronic device |
| CN108761728A (en) * | 2014-09-05 | 2018-11-06 | 玉晶光电(厦门)有限公司 | Optical imaging lens and electronic device |
| CN104407431A (en) * | 2014-12-05 | 2015-03-11 | 宁波舜宇车载光学技术有限公司 | Optical lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221415A (en) * | 2019-07-08 | 2019-09-10 | 桂林弗克斯光电仪器有限公司 | Big visual field double telecentric optical system |
| CN110221415B (en) * | 2019-07-08 | 2024-03-29 | 桂林弗克斯光电仪器有限公司 | Large-field double telecentric optical system |
| CN114166127A (en) * | 2021-12-08 | 2022-03-11 | 福鼎市一雄光学仪器有限公司 | Reinforcing steel bar size detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109239892B (en) | 2023-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107589518B (en) | Optical lens and laser centering measurement device with same | |
| CN105259645B (en) | A kind of big visual field is undistorted, and object lens are compared in contracting | |
| CN109239892A (en) | A kind of inspection of fixed multiplying power optics is as system and its imaging method | |
| CN108563003A (en) | telecentric lens | |
| EP4246201A1 (en) | Lens assembly, imaging device, detection device, and detection system | |
| CN108845417B (en) | Parallax error eliminating machine vision optical system | |
| CN112179628B (en) | Image space telecentric lens for optical measurement | |
| CN218213592U (en) | Industrial lens and near-to-eye display system detection device | |
| CN108845418A (en) | A kind of high-resolution machine vision optical system | |
| CN209070198U (en) | A kind of inspection of fixed multiplying power optics is as system | |
| CN106908938A (en) | A kind of aspherical fish eye lens | |
| US4792214A (en) | Optical magnifying system: 10 x loupe | |
| CN106526813B (en) | A kind of optical lens | |
| CN208569170U (en) | Telecentric lens | |
| CN109116523A (en) | Five chip broad angle lens groups | |
| CN108535836A (en) | A kind of full HD projection lens | |
| CN109471244B (en) | Large-view-field double-telecentric lens based on machine vision | |
| US3486825A (en) | Optical test equipment and methods for making and using same | |
| CN110737081A (en) | -angle double telecentric zoom lens system for lens defect detection | |
| CN209070197U (en) | Parallax free optics is examined as system | |
| US4768866A (en) | Optical magnifying system: 4× loupe | |
| CN113640941A (en) | Optical lens | |
| CN106054360B (en) | A kind of space image space telecentric lens | |
| CN204666941U (en) | A kind of-0.1 × bis-heart machine vision object lens far away | |
| CN209070199U (en) | A kind of low distorted optical inspection is as system |
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 |