CN106772937A - A kind of 50 millimeters of focusing machine visual lens of 8,000,000 pixel - Google Patents
A kind of 50 millimeters of focusing machine visual lens of 8,000,000 pixel Download PDFInfo
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- CN106772937A CN106772937A CN201611173679.XA CN201611173679A CN106772937A CN 106772937 A CN106772937 A CN 106772937A CN 201611173679 A CN201611173679 A CN 201611173679A CN 106772937 A CN106772937 A CN 106772937A
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- lens
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- crescent moon
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- positive crescent
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The present invention provides a kind of 8,000,000 pixel 50 millimeters of focusing machine visual lens, including camera lens and the optics group being arranged in camera lens, optics group includes the first positive crescent moon lens being sequentially provided with along light incidence side, second positive crescent moon lens, the first gluing unit lens being made up of the 3rd positive crescent moon lens and bent moon negative lens, diaphragm, the second gluing unit lens being made up of biconcave lens and the first biconvex positive lens, second biconvex positive lens, the first positive crescent moon lens, second positive crescent moon lens, 3rd positive crescent moon lens centre position is mutually close to and bent moon negative lens and diaphragm spacing are 1.7mm, diaphragm is 2.45mm with biconcave lens spacing, first biconvex positive lens and the second biconvex positive lens centre distance are 5.26mm, compared with prior art, the invention has the advantages that：Clear aperture is big, and the first face is more than Φ 30mm by bore, and pixel is high, and when detector is 2/3 inch, pixel is more than 8,000,000, distorts small, the distortion of this system is less than 0.1%, and low cost, tolerance good manufacturability, yields is high.
Description
Technical field
The present invention relates to a kind of 50 millimeters of focusing machine visual lens of 8,000,000 pixel.
Background technology
Machine vision is exactly to replace human eye with machine to measure and judge.NI Vision Builder for Automated Inspection refers to by machine vision
Product（I.e. image-pickup device, is divided to CMOS and two kinds of CCD）Target will be ingested and be converted into picture signal, sent to special
Image processing system, according to the information such as pixel distribution and brightness, color, is transformed into digitized signal；Picture system is believed these
Number carry out various computings extracting clarification of objective, and then the device action at scene is controlled according to the result for differentiating.
In recent years, with the proposition of industry 4.0, intelligent plant, intelligence production and Intelligent logistics that it is included are required for
Machine " eyes ".Therefore various machine visual lens（Industrial lens）Arise at the historic moment.And most industrial lens focal lengths domestic at present
It is 8mm, 12mm, 16mm, 25mm and 35mm, it is impossible to meet the demand of various applications.When the thing being imaged than it is dark when, in order to allow
Enough light reaches detector, and usual camera lens aperture needs bigger.For the camera lens of small focal length, large aperture can cause optical system
System complex structure, process and assemble difficulty is big, as matter difference and high cost.
The content of the invention
The present invention is improved above mentioned problem, i.e., the technical problem to be solved in the present invention is the mirror of existing small focal length
Head process and assemble difficulty in the case where vision lenses bore is increased is big, as matter difference and high cost.
Specific embodiments of the present invention are：A kind of 50 millimeters of focusing machine visual lens of 8,000,000 pixel, its feature exists
In including camera lens and the optics group that is arranged in camera lens, the optics group include being sequentially provided with along light incidence side
The first positive crescent moon lens, the second positive crescent moon lens, the first gluing unit for being made up of the 3rd positive crescent moon lens and bent moon negative lens
Lens, diaphragm, the second gluing unit lens, the second biconvex positive lens being made up of biconcave lens and the first biconvex positive lens, it is described
First positive crescent moon lens, the second positive crescent moon lens, the 3rd positive crescent moon lens centre position are mutually close to and bent moon negative lens and light
Late edge spacing is 1.7mm, and diaphragm is 2.45mm with biconcave lens edge spacing, and the first biconvex positive lens are just saturating with the second biconvex
Mirror centre distance is 5.26mm.
Further, the material of the biconcave lens is high-dispersion glass, and V is less than 35.
Further, the material of first biconvex positive lens is light, and refractive index is less than 1.6.
Further, the material of second biconvex positive lens is glass of high refractive index, and refractive index is more than 1.9.
Further, the camera lens includes accommodating chamber, institute with placement optics group in body tube, the body tube
The spacer ring for accommodating and having in chamber and separate each lens is stated, body tube front side is provided with preceding trim ring, and the first gluing unit lens rear side is provided with
Trim ring afterwards, body tube end is fixedly connected with interface.
Further, there is groove at the inwall such as the trim ring and spacer ring, and trim ring and spacer ring inner surface have delustring paint
Coat.
Further, the material of the described second positive crescent moon lens and the 3rd positive crescent moon lens is that two blocks of FK61 materials are made
Unusual glass.
Compared with prior art, the invention has the advantages that：The invention has the advantages that：Clear aperture is big, on
Object point is more than Φ 30mm in the first face by bore, and pixel is high, and when detector is 2/3 inch, pixel is more than 8,000,000, distortion
Small, the distortion of this system is less than 0.1%, and low cost, tolerance good manufacturability, yields is high.
Brief description of the drawings
Fig. 1 is optics group structural representation of the present invention.
Fig. 2 is lens assembly structural representation of the present invention.
Fig. 3 is the parameter list of the example optical system of the embodiment of the present invention.
In figure：The positive crescent moon lens of 10- first, the positive crescent moon lens of 20- second, the positive crescent moon lens of 30- the 3rd, 40- bent moons are born
Lens, 50- diaphragms, 60- biconcave lens, the biconvex positive lens of 70- first, the biconvex positive lens of 80- second, 100- body tubes, 101-
Spacer ring, trim ring before 102-, trim ring after 103-, 104- interfaces.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1~2, a kind of 8,000,000 pixel, 50 millimeters of focusing machine visual lens, including camera lens and it is arranged at camera lens
Interior optics group, the optics group includes the first positive crescent moon lens 10, second being sequentially provided with along light incidence side
Positive crescent moon lens 20, the first gluing unit lens being made up of the 3rd positive crescent moon lens 30 and bent moon negative lens 40, diaphragm 50, by double
The second gluing unit lens, the second biconvex positive lens 80 that 60 and first biconvex positive lens of concavees lens 70 are constituted, first first month of the lunar year
Tooth lens 10, the second positive crescent moon lens 20, the lens centre position of the 3rd positive crescent moon 30 are mutually close to and bent moon negative lens 40 and light
Late 50 edge spacing are 1.7mm, and diaphragm 50 is 2.45mm, the first biconvex positive lens 40 and second with the edge spacing of biconcave lens 60
The centre distance of biconvex positive lens 80 is 5.26mm.
The 3rd positive crescent moon lens 30 and bent moon negative lens 40 formation first mutually glued together in the present embodiment is glued
Group lens, the biconvex positive lens 70 of biconcave lens 60 and first mutually second gluing unit lens of formation glued together.
In table as shown in Figure 3：" S1, S2, S3.. " represents the sequence number of each lens surface from left to right in Fig. 1, " stop "
Diaphragm is represented, " radius of curvature " represents the radius size on the surface, " inf " represents that radius infinity is plane, and " spacing " is represented
The surface to next surface distance, such as S1 be positive crescent moon lens 10 away from the second positive crescent moon lens 20, S2 is positive crescent moon
Lens 10 close on the surface of the second positive crescent moon lens 20, and the cemented surface of the 3rd positive crescent moon lens 30 and bent moon negative lens 40 is S6.
Spacing 3.6mm as corresponding to S1, represents the distance of S1 to S2, and " refractive index " represents the corresponding glass refraction of d light, refractive index
Space in row represents air.
In the present embodiment, the material of the biconcave lens is high-dispersion glass, and V is less than 35.
In the present embodiment, the material of first biconvex lens is light, and refractive index is less than 1.6.
In the present embodiment, the material of second biconvex positive lens is glass of high refractive index, and refractive index is more than 1.9.
Above-mentioned optic assembly is placed in body tube 100, is had in the body tube 100 and is placed putting for optics group
Receive chamber, described to accommodate the spacer ring 101 for having in chamber and separating each lens, body tube front side is provided with preceding trim ring 102, the first gluing unit
Lens rear side is provided with rear trim ring 103, and the end of body tube 100 is fixedly connected with interface 104.Body tube 100 described in the present embodiment
There is the positive mating surface of master and between interface 104, connected with screw flange, it is ensured that the axiality requirement between camera lens and external camera.
In the present embodiment, there is groove at the inwall such as the trim ring and spacer ring, and trim ring and spacer ring inner surface have delustring
Paint coat, scattering and absorption using lens barrel inwall to stray light emission suppress the purpose of veiling glare so as to reach.
In the present embodiment, because the second order spectrum of telephoto lens is restricted aberration, therefore the second positive crescent moon lens and
Three positive crescent moon lens correct second order spectrum using FK61 abnormality glass.
If the words such as " first ", " second " are used herein to limit parts, those skilled in the art should
This knows：" first ", the use of " second " are intended merely to facilitate in description and parts are distinguished such as no Stated otherwise
Outward, above-mentioned word does not have special implication.
Meanwhile, if the invention described above is open or relate to the parts or structural member of connection fastened to each other, then, except another
There is statement outer, be fixedly connected and can be understood as：Can releasably be fixedly connected (for example use bolt or mode connects for screw), also may be used
To be interpreted as：Non-removable to be fixedly connected (such as rivet, weld), certainly, connection fastened to each other can also be integral type knot
Structure (for example being manufactured using casting technique is integrally formed) replaces (substantially cannot be using except integrally formed technique).
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to preferred embodiment to the present invention, and those of ordinary skill in the art should be understood：Still
Specific embodiment of the invention can be modified or equivalent is carried out to some technical characteristics；Without deviating from this hair
The spirit of bright technical scheme, it all should cover in the middle of claimed technical scheme scope of the invention.
Claims (7)
1. a kind of 8,000,000 pixel, 50 millimeters of focusing machine visual lens, it is characterised in that including camera lens and be arranged in camera lens
Optics group, the optics group includes the first positive crescent moon lens, the second positive crescent moon that are sequentially provided with along light incidence side
Lens, the first gluing unit lens being made up of the 3rd positive crescent moon lens and bent moon negative lens, diaphragm, by biconcave lens and first pair
The second gluing unit lens, the second biconvex positive lens that convex positive lens is constituted, the first positive crescent moon lens, the second positive crescent moon are saturating
Mirror, the 3rd positive crescent moon lens centre position are mutually close to and bent moon negative lens and diaphragm edge spacing are 1.7mm, diaphragm and concave-concave
Rims of the lens spacing is 2.45mm, and the first biconvex positive lens and the second biconvex positive lens centre distance are 5.26mm.
2. 50 millimeters of focusing machine visual lens of a kind of 8,000,000 pixel according to claim 1, it is characterised in that described
The material of biconcave lens is high-dispersion glass, and V is less than 35.
3. 50 millimeters of focusing machine visual lens of a kind of 8,000,000 pixel according to claim 1, it is characterised in that described
The material of the first biconvex positive lens is light, and refractive index is less than 1.6.
4. 50 millimeters of focusing machine visual lens of a kind of 8,000,000 pixel according to claim 1, it is characterised in that described
The material of the second biconvex positive lens is glass of high refractive index, and refractive index is more than 1.9.
5. 50 millimeters of focusing machine visual lens of a kind of 8,000,000 pixel according to claim 1, it is characterised in that described
Camera lens includes thering is the chamber that accommodates for placing optics group in body tube, the body tube, and described accommodating in chamber has separation each
The spacer ring of individual lens, body tube front side is provided with preceding trim ring, and the first gluing unit lens rear side is provided with rear trim ring, and body tube end is fixed
It is connected with interface.
6. 50 millimeters of focusing machine visual lens of a kind of 8,000,000 pixel according to claim 5, it is characterised in that described
There is groove at the inwall such as trim ring and spacer ring, and trim ring and spacer ring inner surface have delustring paint coat.
7. 50 millimeters of focusing machine visual lens of a kind of 8,000,000 pixel according to claim 1, it is characterised in that described
The material of the second positive crescent moon lens and the 3rd positive crescent moon lens is two blocks of FK61 abnormality glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173679.XA CN106772937B (en) | 2016-12-19 | 2016-12-19 | 800 ten thousand pixels 50 millimeters tight machine vision camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173679.XA CN106772937B (en) | 2016-12-19 | 2016-12-19 | 800 ten thousand pixels 50 millimeters tight machine vision camera lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106772937A true CN106772937A (en) | 2017-05-31 |
| CN106772937B CN106772937B (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611173679.XA Active CN106772937B (en) | 2016-12-19 | 2016-12-19 | 800 ten thousand pixels 50 millimeters tight machine vision camera lens |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681036A (en) * | 2018-06-20 | 2018-10-19 | 广东奥普特科技股份有限公司 | 35mm is big, and target surface machine vision line sweeps camera lens |
| CN110456477A (en) * | 2019-07-30 | 2019-11-15 | 福建福光天瞳光学有限公司 | The low distortion backsight optical system of one kind and imaging method |
| CN110830682A (en) * | 2018-08-14 | 2020-02-21 | 西安应用光学研究所 | Optical structure for weakening cat eye effect |
| CN111650732A (en) * | 2020-07-14 | 2020-09-11 | 福建福特科光电股份有限公司 | Short wave infrared lens |
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| JP2000035534A (en) * | 1998-07-21 | 2000-02-02 | Konica Corp | Photographic lens |
| JP2009169129A (en) * | 2008-01-17 | 2009-07-30 | Canon Inc | Optical system and optical equipment having the same |
| CN101907764A (en) * | 2010-08-03 | 2010-12-08 | 浙江师范大学 | Projection helmet optical system, projection lens thereof and helmet display device employing system |
| JP2013019994A (en) * | 2011-07-08 | 2013-01-31 | Nikon Corp | Optical system, imaging device having the optical system, and manufacturing method of the optical system |
| JP2014085460A (en) * | 2012-10-23 | 2014-05-12 | Tamron Co Ltd | Lens system |
| CN104280860A (en) * | 2014-09-18 | 2015-01-14 | 利达光电股份有限公司 | High-resolution camera lens |
| CN204883027U (en) * | 2015-07-13 | 2015-12-16 | 深圳市永诺摄影器材股份有限公司 | Camera tight shot |
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| JP2000035534A (en) * | 1998-07-21 | 2000-02-02 | Konica Corp | Photographic lens |
| JP2009169129A (en) * | 2008-01-17 | 2009-07-30 | Canon Inc | Optical system and optical equipment having the same |
| CN101907764A (en) * | 2010-08-03 | 2010-12-08 | 浙江师范大学 | Projection helmet optical system, projection lens thereof and helmet display device employing system |
| JP2013019994A (en) * | 2011-07-08 | 2013-01-31 | Nikon Corp | Optical system, imaging device having the optical system, and manufacturing method of the optical system |
| JP2014085460A (en) * | 2012-10-23 | 2014-05-12 | Tamron Co Ltd | Lens system |
| CN104280860A (en) * | 2014-09-18 | 2015-01-14 | 利达光电股份有限公司 | High-resolution camera lens |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681036A (en) * | 2018-06-20 | 2018-10-19 | 广东奥普特科技股份有限公司 | 35mm is big, and target surface machine vision line sweeps camera lens |
| CN108681036B (en) * | 2018-06-20 | 2023-08-22 | 广东奥普特科技股份有限公司 | 35mm large target surface machine vision line scanning lens |
| CN110830682A (en) * | 2018-08-14 | 2020-02-21 | 西安应用光学研究所 | Optical structure for weakening cat eye effect |
| CN110456477A (en) * | 2019-07-30 | 2019-11-15 | 福建福光天瞳光学有限公司 | The low distortion backsight optical system of one kind and imaging method |
| CN111650732A (en) * | 2020-07-14 | 2020-09-11 | 福建福特科光电股份有限公司 | Short wave infrared lens |
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| Publication number | Publication date |
|---|---|
| CN106772937B (en) | 2022-09-16 |
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