CN105425364B - Big target surface large aperture day and night confocal intelligent traffic monitoring camera lens - Google Patents
Big target surface large aperture day and night confocal intelligent traffic monitoring camera lens Download PDFInfo
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- CN105425364B CN105425364B CN201510985201.6A CN201510985201A CN105425364B CN 105425364 B CN105425364 B CN 105425364B CN 201510985201 A CN201510985201 A CN 201510985201A CN 105425364 B CN105425364 B CN 105425364B
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- monitoring camera
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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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
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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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/008—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras designed for infrared light
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- Optics & Photonics (AREA)
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Abstract
The present invention relates to a kind of big target surface large aperture day and night confocal intelligent traffic monitoring camera lens,Lens L1 including being arranged on the negative power set gradually in lens barrel from object plane side to image planes side,The lens L2 of positive light coke,The first gluing unit that the lens L3 of negative power and the lens L4 of positive light coke are formed,The second gluing unit that the lens L5 of positive light coke and the lens L6 of negative power are formed,Aperture diaphragm,The 3rd gluing unit that the lens L7 of negative power and the lens L8 of positive light coke are formed,The lens L9 of positive light coke,The 4th gluing unit that the lens L10 of negative power and the lens L11 of positive light coke are formed,Image planes,The protective glass F of zero focal power is provided between lens L11 and image planes,The present invention uses the modified form double gauss structure of 7 groups 11,The demand of the round-the-clock monitoring of intelligent transportation can be fully met.
Description
Technical field
The present invention relates to monitoring field, and in particular to a kind of big target surface large aperture day and night confocal intelligent traffic monitoring camera lens.
Background technology
With the continuous development of intelligent transportation industry and camcorder technology, market improves constantly to the quality requirements of camera lens.
The main product relative aperture applied to intelligent traffic monitoring is generally no greater than 1/1.4 at present, and target surface is no more than 2/3 inch.And
High-end camera lens with day and night confocal function is mostly that foreign vendor occupies, and has higher aspherical of use cost in optical system
Glass lens.Therefore, how to design a kind of using the big target surface large aperture of ordinary glass material and day and night confocal intelligent transportation
Monitoring camera is very necessary.
The content of the invention
It is an object of the invention to provide a kind of using ordinary glass material, big target surface large aperture and day and night confocal intelligence to hand over
Logical monitoring camera.
A kind of the technical scheme is that big target surface large aperture day and night confocal intelligent traffic monitoring camera lens, including set
The lens L1 of the negative power set gradually in lens barrel from object plane side to image planes side, the lens L2 of positive light coke, negative power
Lens L3 and positive light coke lens L4 form the first gluing unit, the lens L5 of positive light coke and the lens L6 of negative power
3rd gluing unit of the lens L8 compositions of the second gluing unit, aperture diaphragm, the lens L7 of negative power and the positive light coke formed,
The 4th gluing unit, the image planes of the lens L9 of positive light coke, the lens L10 of negative power and positive light coke lens L11 compositions, institute
State the protective glass F that zero focal power is provided between lens L11 and image planes.
Further, the footpath diaphragm is arranged between lens L6 and lens L7, and it is to lens L6 rear end face and to saturating
The edge airspace of mirror L7 front end face is respectively greater than 1.5mm and 2.5mm.
Further, the f-number FNO of the aperture diaphragm is FNO≤1.3.
Further, the focal length EFL and rear cut-off distance BFL of the camera lens ratio are 2.5 ＜ EFL/BFL ＜ 3.
Further, radius of curvature R 1 of the lens L4 in object plane side meets bar with it in the radius of curvature R 2 of image planes side
Part：0.5 ＜ | R1/R2 | ＜ 0.6, the lens L11 object plane side radius of curvature R 1 with its image planes side radius of curvature R 2
Meet condition：0.2 ＜ | R1/R2 | ＜ 0.3.
Further, the lens L6 meets condition：Nd >=1.7,35 >=Vd >=25；The lens L7 meets condition：Nd
>=1.65,40 >=Vd >=30；The lens L10 and lens L11 meet condition：Nd >=1.8, wherein Vd >=42, Nd, Vd difference tables
Show the d optical indexs and d light Abbe numbers of glass material, d light is 588nm visible ray.
Further, lens L1, lens L2, lens L3, lens L4, lens L5, lens L6, lens L7, lens L8, lens
L9, lens L10 and lens L11 are spherical glass lens.
Further, the protective glass F is flat board optical filter.
Compared with prior art, the invention has the advantages that：Using the modified form double gauss structure of 7 groups 11,
Comprising 4 groups of cemented doublets, be advantageous to the correction of spherical aberration and aberration, make compact-sized, the image planes of this camera lens reach 1 ", relative opening
Footpath is more than 1/1.3, and design spectrum includes visible ray and near infrared light, and realizes day and night confocal, and ultimate resolution is more than 1,000 ten thousand
Pixel, there is the characteristics of big target surface, large aperture, high-resolution, day and night confocal realization, it is round-the-clock intelligent transportation can be fully met
The demand of monitoring.
Make further details of elaboration to the present invention with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1- lens L1,2- lens L2,3- lens L3,4- lens L4,5- lens L5,6- lens L6,7- aperture lights
Door screen, 8- lens L7,9- lens L8,10- lens L9,11- lens L10,12- lens L11,13- protective glass F.
Embodiment
As shown in figure 1, a kind of big target surface large aperture day and night confocal intelligent traffic monitoring camera lens, including be arranged in lens barrel from
The lens L1 for the negative power that object plane side to image planes side is set gradually, the lens L2 of positive light coke, negative power lens L3 and
The second of the lens L6 compositions for the first gluing unit, the lens L5 of positive light coke and the negative power that the lens L4 of positive light coke is formed
The 3rd gluing unit that gluing unit, aperture diaphragm, the lens L8 of the lens L7 of negative power and positive light coke are formed, positive light coke
The 4th gluing unit, the image planes of lens L9, the lens L10 of negative power and positive light coke lens L11 compositions, the lens L11
The protective glass F of zero focal power is provided between image planes.
In the present embodiment, the footpath diaphragm is arranged between lens L6 and lens L7, its to lens L6 rear end face and
It is respectively greater than 1.5mm and 2.5mm to the edge airspace of lens L7 front end face.
In the present embodiment, the f-number FNO of the aperture diaphragm is FNO≤1.3.
In the present embodiment, the focal length EFL and rear cut-off distance BFL of the camera lens ratio are 2.5 ＜ EFL/BFL ＜ 3.
In the present embodiment, radius of curvature R 1 of the lens L4 in object plane side is full in the radius of curvature R 2 of image planes side with it
Sufficient condition：0.5 ＜ | R1/R2 | ＜ 0.6, the lens L11 object plane side radius of curvature R 1 with its image planes side curvature half
Footpath R2 meets condition：0.2 ＜ | R1/R2 | ＜ 0.3.
In the present embodiment, the lens L6 meets condition：Nd >=1.7,35 >=Vd >=25；The lens L7 meets bar
Part：Nd >=1.65,40 >=Vd >=30；The lens L10 and lens L11 meet condition：Nd >=1.8, wherein Vd >=42, Nd, Vd
The d optical indexs and d light Abbe numbers of glass material are represented respectively, and d light is 588nm visible ray.
In the present embodiment, lens L1, lens L2, lens L3, lens L4, lens L5, lens L6, lens L7, lens L8,
Lens L9, lens L10 and lens L11 are spherical glass lens, are effectively controlled production cost and technology difficulty.
In the present embodiment, the protective glass F is flat board optical filter.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, it should all belong to the covering scope of the present invention.
Claims (8)
- A kind of 1. big target surface large aperture day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：Including be arranged in lens barrel from The lens L1 for the negative power that object plane side to image planes side is set gradually, the lens L2 of positive light coke, negative power lens L3 and The second of the lens L6 compositions for the first gluing unit, the lens L5 of positive light coke and the negative power that the lens L4 of positive light coke is formed The 3rd gluing unit that gluing unit, aperture diaphragm, the lens L8 of the lens L7 of negative power and positive light coke are formed, positive light coke The 4th gluing unit, the image planes of lens L9, the lens L10 of negative power and positive light coke lens L11 compositions, the lens L11 The protective glass F of zero focal power is provided between image planes.
- 2. big target surface large aperture according to claim 1 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：It is described Footpath diaphragm is arranged between lens L6 and lens L7, the edge air of its rear end face to lens L6 and the front end face to lens L7 Interval is respectively greater than 1.5mm and 2.5mm.
- 3. big target surface large aperture according to claim 2 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：It is described The f-number FNO of aperture diaphragm is FNO≤1.3.
- 4. big target surface large aperture according to claim 2 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：The mirror The focal length EFL and rear cut-off distance BFL of head ratio are 2.5 ＜ EFL/BFL ＜ 3.
- 5. big target surface large aperture according to claim 1 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：It is described Radius of curvature R 1 of the lens L4 in object plane side meets condition with it in the radius of curvature R 2 of image planes side：0.5 ＜ | R1/R2 | ＜ 0.6, Radius of curvature R 1 of the lens L11 in object plane side meets condition with it in the radius of curvature R 2 of image planes side：0.2 ＜ | R1/R2 | ＜ 0.3.
- 6. big target surface large aperture according to claim 1 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：It is described Lens L6 meets condition：Nd >=1.7,35 >=Vd >=25；The lens L7 meets condition：Nd >=1.65,40 >=Vd >=30；It is described Lens L10 and lens L11 meet condition：Nd >=1.8, wherein Vd >=42, Nd, Vd represent the d optical indexs of glass material respectively With d light Abbe numbers, d light is 588nm visible ray.
- 7. big target surface large aperture according to claim 1 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：Lens L1, lens L2, lens L3, lens L4, lens L5, lens L6, lens L7, lens L8, lens L9, lens L10 and lens L11 are equal For spherical glass lens.
- 8. big target surface large aperture according to claim 1 day and night confocal intelligent traffic monitoring camera lens, it is characterised in that：It is described Protective glass F is flat board optical filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985201.6A CN105425364B (en) | 2015-12-25 | 2015-12-25 | Big target surface large aperture day and night confocal intelligent traffic monitoring camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985201.6A CN105425364B (en) | 2015-12-25 | 2015-12-25 | Big target surface large aperture day and night confocal intelligent traffic monitoring camera lens |
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| Publication Number | Publication Date |
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| CN105425364A CN105425364A (en) | 2016-03-23 |
| CN105425364B true CN105425364B (en) | 2017-12-19 |
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| CN201510985201.6A Active CN105425364B (en) | 2015-12-25 | 2015-12-25 | Big target surface large aperture day and night confocal intelligent traffic monitoring camera lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110579927B (en) * | 2019-10-09 | 2021-07-30 | 安徽仁和光电科技有限公司 | Small low-F-number high-definition projection lens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01269909A (en) * | 1988-04-22 | 1989-10-27 | Olympus Optical Co Ltd | Objective lens of endoscope |
| JPH0727975A (en) * | 1993-07-12 | 1995-01-31 | Nikon Corp | Rear conversion lens provided with vibration proof function |
| JPH09325272A (en) * | 1996-06-07 | 1997-12-16 | Minolta Co Ltd | Photographing optical system |
| WO2011158778A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社ニコン | Microscope objective lens |
| CN205263384U (en) * | 2015-12-25 | 2016-05-25 | 福建师范大学 | Big confocal intelligent traffic monitoring camera lens of target surface large aperture day night |
-
2015
- 2015-12-25 CN CN201510985201.6A patent/CN105425364B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01269909A (en) * | 1988-04-22 | 1989-10-27 | Olympus Optical Co Ltd | Objective lens of endoscope |
| JPH0727975A (en) * | 1993-07-12 | 1995-01-31 | Nikon Corp | Rear conversion lens provided with vibration proof function |
| JPH09325272A (en) * | 1996-06-07 | 1997-12-16 | Minolta Co Ltd | Photographing optical system |
| WO2011158778A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社ニコン | Microscope objective lens |
| CN102971656A (en) * | 2010-06-16 | 2013-03-13 | 株式会社尼康 | Microscope objective lens |
| CN205263384U (en) * | 2015-12-25 | 2016-05-25 | 福建师范大学 | Big confocal intelligent traffic monitoring camera lens of target surface large aperture day night |
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| Publication number | Publication date |
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| CN105425364A (en) | 2016-03-23 |
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Effective date of registration: 20201123 Address after: 350108, Fujian Fuzhou high tech Zone Haixi new and high tech Industrial Park Innovation Park, No. 15, building 3-8 Patentee after: AZURE PHOTONICS Co.,Ltd. Address before: 350117 science and Technology Department, Fujian City Normal University, Fuzhou Town, Minhou County, Fujian, China Patentee before: Fujian Normal University |
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