CN105807400A - Super-large-aperture wide-angle lens of single lens reflex camera - Google Patents
Super-large-aperture wide-angle lens of single lens reflex camera Download PDFInfo
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- CN105807400A CN105807400A CN201610346001.0A CN201610346001A CN105807400A CN 105807400 A CN105807400 A CN 105807400A CN 201610346001 A CN201610346001 A CN 201610346001A CN 105807400 A CN105807400 A CN 105807400A
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- 230000011514 reflex Effects 0.000 title claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 238000003384 imaging method Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 69
- 239000000571 coke Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 4
- 230000004075 alteration Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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Abstract
The invention discloses a super-large-aperture wide-angle lens of a single lens reflex camera.The super-large-aperture wide-angle lens comprises an optical lens which sequentially comprises 11 lenses from the object side to the image side; the first lens has negative power, and the object side face of the first lens is a convex face; the second lens has negative power, and the object side face of the second lens is a concave face; the third lens has positive power, and the object side face of the third lens is a plane; the fourth lens has positive power, and the object side face of the fourth lens is a convex face; the fifth lens has positive power, and the object side face of the fifth lens is a convex face; the sixth lens has negative power, and the object side face of the sixth lens is a convex face; the seventh lens has negative power, and the object side face of the seventh lens is a concave face; the eighth lens has positive power, and the object side face of the eighth lens is a convex face; the ninth lens has positive power, and the object side face of the ninth lens is a convex face; the tenth lens has negative power, and the object side face of the tenth lens is a convex face; the eleventh lens has positive power, and the object side face of the eleventh lens is a convex face.The super-large-aperture wide-angle lens of the single lens reflex camera can correct various aberrations and is compact in structure, good in imaging effect, long in back focal length, low in cost and high in cost performance ratio.
Description
Technical field
The present invention relates to slr camera wide-angle lens field, in particular a kind of specification is the digital single-lens reflex camera super large aperture full width camera lens of 35mmF1.2.
Background technology
In digital camera equipment, there is certain vacancy in the production of domestic camera lens design, and along with the raising of the development of camera work and people's living standard, shutterbugs' increasing number, the demand of this respect also increases therewith.In existing full width lens design, such as the 35mm camera lens of the manufacturer production such as Nikon, Canon, suitable horse, maximum ring only has F1.4, and all used aspherical lens above, on the high side, cost performance is low, is a heavy financial burden to vast commonness photograph fan.
Therefore, prior art existing defects, it is necessary to improve.
Summary of the invention
The technical problem to be solved is: provide one can revise various aberration, compact conformation, imaging effect good, and long back focal length is less costly, the slr camera super large aperture wide-angle lens that cost performance is high.
Technical scheme is as follows: a kind of slr camera super large aperture wide-angle lens, including an optical lens, this optical lens is sequentially comprised to image side by thing side: have the first lens of negative power, and its thing side is convex surface, including the first convex surface sphere and the second concave surface sphere；Having the second lens of negative power, its thing side is concave surface, including the 3rd concave surface sphere and the 4th concave surface sphere；Having the 3rd lens of positive light coke, its thing side is plane, including the 5th plane sphere and the 6th convex surface sphere；Having the 4th lens of positive light coke, its thing side is convex surface, including the 7th convex surface sphere and the 8th convex surface sphere；Having the 5th lens of positive light coke, its thing side is convex surface, including the 9th convex surface sphere and the tenth concave surface sphere；Having the 6th lens of negative power, its thing side is convex surface, including the 11st convex surface sphere and the 12nd concave surface sphere；Having the 7th lens of negative power, its thing side is concave surface, including the 13rd concave surface sphere and the 14th concave surface sphere；Having the 8th lens of positive light coke, its thing side is convex surface, including the 15th convex surface sphere and the 16th convex surface sphere；Having the 9th lens of positive light coke, its thing side is convex surface, including the 17th convex surface sphere and the 18th convex surface sphere；Having the tenth lens of negative power, its thing side is convex surface, including the 19th convex surface sphere and the 20th concave surface sphere；Having the 11st lens of positive light coke, its thing side is convex surface, including the 21st convex surface sphere and the 22nd convex surface sphere.
Being applied to technique scheme, in described slr camera super large aperture wide-angle lens, the 14th concave surface sphere of the 7th lens and the 15th convex surface spherical shape of the 8th lens are corresponding, and mutually glued.
Being applied to technique scheme, in described slr camera super large aperture wide-angle lens, it meets 0.5 < EFL/H < 1, and wherein EFL is the effective focal length of system, and H is imaging surface size；Further, the first lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；Second lens meet: 1.55 < n < 1.7,40 < λ < 50, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；3rd lens meet: 1.65 < n < 1.85,30 < λ < 45, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；4th lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；5th lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；6th lens meet: 1.5 < n < 1.75,55 < λ < 70, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；7th lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；8th lens meet: 1.4 < n < 1.6,75 < λ < 90, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；9th lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；Tenth lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；11st lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass.
Being applied to technique scheme, in described slr camera super large aperture wide-angle lens, the parameter of each lens is:
Being applied to technique scheme, in described slr camera super large aperture wide-angle lens, its system parameter setting is: TTL=135.5；EFL=35.7；H=43.2；F/#=1.23, wherein, TTL is overall length, and EFL is effective focal length, and H is imaging surface size, and F/# is aperture-coefficient size, for the inverse of relative aperture.
Being applied to technique scheme, in described slr camera super large aperture wide-angle lens, it is digital single-lens reflex camera super large aperture full width camera lens that specification is 35mmF1.2.
Being applied to technique scheme, in described slr camera super large aperture wide-angle lens, the first lens preferentially adopt the glass material of Chengdu light Photoelectric Co., Ltd. to the 11st lens.
Adopt such scheme, the present invention by arranging 11 lens, the convenient light receiving greater angle of the first lens, be beneficial to shortening focal length, can also allow after optics burnt elongated simultaneously；Second lens can undertake the negative power of a part of first lens, allows the first lens shape can be gently, it is easy to processing；3rd lens, for assembling the light that front two panels receives, undertake the positive light coke of a part the 4th lens simultaneously, also make the 4th lens shape mild, convenient processing；Four to nine lens constitute the distressed structure of double gauss, then in order to increase the aperture of whole system and eliminate part aberration, the glue pellet of the 7th lens and the 8th lens composition can color difference eliminating better；Tenth lens and the 11st lens, for eliminating remaining aberration as far as possible, reduce rear group of eyeglass bore, produce certain symmetry with front group, it is possible to conveniently eliminate distortion simultaneously；Whole optical system is closely, it does not have other redundant spaces, it is possible to revising various aberration, compact conformation, effect effective, long back focal length, less costly, cost performance is high.
Accompanying drawing explanation
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the axle colouring dygoram of the present invention；
Fig. 3 is the astigmatism curve chart of the present invention；
Fig. 4 is the distortion curve figure of the present invention；
Fig. 5 is the relative illumination curve chart of the present invention；
Fig. 6 is modulation transfer functions (MTF) curve chart of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Present embodiments provide a kind of slr camera super large aperture wide-angle lens, as shown in Figure 1, slr camera super large aperture wide-angle lens includes an optical lens, this optical lens is sequentially comprised to image side by thing side: have the first lens 1 of negative power, the thing side of the first lens 1 is convex surface, and the first lens 1 include the first convex surface sphere and the second concave surface sphere；Having the second lens 2 of negative power, the thing side of the second lens 2 is concave surface, and the second lens 2 include the 3rd concave surface sphere and the 4th concave surface sphere；Having the 3rd lens 3 of positive light coke, the thing side of the 3rd lens 3 is plane, the 3rd lens 3 include the 5th plane sphere and the 6th convex surface sphere；Having the 4th lens 4 of positive light coke, the thing side of the 4th lens 4 is convex surface, and the 4th lens 4 include the 7th convex surface sphere and the 8th convex surface sphere；Having the 5th lens 5 of positive light coke, the thing side of the 5th lens 5 is convex surface, and the 5th lens 5 include the 9th convex surface sphere and the tenth concave surface sphere；Having the 6th lens 6 of negative power, the thing side of the 6th lens 6 is convex surface, and the 6th lens 6 include the 11st convex surface sphere and the 12nd concave surface sphere；Having the 7th lens 7 of negative power, the thing side of the 7th lens 7 is concave surface, and the 7th lens 7 include the 13rd concave surface sphere and the 14th concave surface sphere；Having the 8th lens 8 of positive light coke, the thing side of the 8th lens 8 is convex surface, and the 8th lens 8 include the 15th convex surface sphere and the 16th convex surface sphere；Having the 9th lens 9 of positive light coke, the thing side of the 9th lens 9 is convex surface, and the 9th lens 9 include the 17th convex surface sphere and the 18th convex surface sphere；Having the tenth lens 10 of negative power, the thing side of the tenth lens 10 is convex surface, and the tenth lens 10 include the 19th convex surface sphere and the 20th concave surface sphere；Having the 11st lens 11 of positive light coke, the thing side of the 11st lens 11 is convex surface, and the 11st lens 11 include the 21st convex surface sphere and the 22nd convex surface sphere.
Diaphragm 13 is arranged on the 6th lens 6 and the 7th lens 7, is image planes 12 before this optical lens, and, the first lens to the 11st lens select material time, it is possible to prioritizing selection adopt Chengdu light Photoelectric Co., Ltd. glass material.
Wherein, the first lens 1 are the meniscus lens that negative light is burnt, and the convenient light receiving greater angle is beneficial to shortening focal length, can also allow after optics burnt elongated simultaneously；Second lens 2 are biconcave lens, and the second lens 2 can undertake the negative power of a part of first lens 1, allow the first lens 1 shape can be gently, it is easy to processing；3rd lens 3, for assembling the light that front two panels receives, undertake the positive light coke of a part the 4th lens 4 simultaneously, also make the 4th lens 4 shape mild, convenient processing.
4th lens the 4, the 5th lens the 5, the 6th lens the 6, the 7th lens the 7, the 8th lens 8 and the 9th lens 9 constitute the distressed structure of double gauss, then in order to increase the aperture of whole system and eliminate part aberration, and, 14th concave surface sphere of the 7th lens 7 and the 15th convex surface spherical shape of the 8th lens 8 are corresponding, and it is mutually glued, so, the glue pellet of the 7th lens 7 and the 8th lens 8 composition can color difference eliminating better；Tenth lens the 10 and the 11st lens 11, for eliminating remaining aberration as far as possible, reduce rear group of eyeglass bore, produce certain symmetry with front group, it is possible to conveniently eliminate distortion simultaneously；Whole optical system is closely, it does not have other redundant spaces.
Or, wherein, the system of this optical lens meets 0.5 < EFL/H < 1, and wherein EFL is the effective focal length of system, and H is imaging surface size；Further, the first lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；Second lens meet: 1.55 < n < 1.7,40 < λ < 50, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；3rd lens meet: 1.65 < n < 1.85,30 < λ < 45, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；4th lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；5th lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；6th lens meet: 1.5 < n < 1.75,55 < λ < 70, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；7th lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；8th lens meet: 1.4 < n < 1.6,75 < λ < 90, and wherein n is the refractive index of glass, and λ is the Abbe number of glass.9th lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；Tenth lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；11st lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass.
And it is possible to by the system parameter setting of optical texture be: TTL=135.5；EFL=35.7；H=43.2；F/#=1.23, wherein, TTL is overall length, and EFL is effective focal length, and H is imaging surface size, and F/# is aperture-coefficient size, for the inverse of relative aperture.
The parameter of each lens such as following table:
So, this optical lens is set to the digital single-lens reflex camera super large aperture full width camera lens that specification is 35mmF1.2；On its axle, chromatic curve, astigmatism curve, distortion curve, relative illumination curve chart and modulation transfer functions (MTF) curve are as shown in figures 2-6, and digital single-lens reflex camera super large aperture full width camera lens has revises various aberrations, compact conformation, imaging effect is good, the angle of visual field is big, long back focal length, cost performance are high advantage.
These are only presently preferred embodiments of the present invention, be not limited to the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (7)
1. a slr camera super large aperture wide-angle lens, it is characterised in that
Including an optical lens, this optical lens is sequentially comprised to image side by thing side:
Having the first lens of negative power, its thing side is convex surface, including the first convex surface sphere and the second concave surface sphere；
Having the second lens of negative power, its thing side is concave surface, including the 3rd concave surface sphere and the 4th concave surface sphere；
Having the 3rd lens of positive light coke, its thing side is plane, including the 5th plane sphere and the 6th convex surface sphere；
Having the 4th lens of positive light coke, its thing side is convex surface, including the 7th convex surface sphere and the 8th convex surface sphere；
Having the 5th lens of positive light coke, its thing side is convex surface, including the 9th convex surface sphere and the tenth concave surface sphere；
Having the 6th lens of negative power, its thing side is convex surface, including the 11st convex surface sphere and the 12nd concave surface sphere；
Having the 7th lens of negative power, its thing side is concave surface, including the 13rd concave surface sphere and the 14th concave surface sphere；
Having the 8th lens of positive light coke, its thing side is convex surface, including the 15th convex surface sphere and the 16th convex surface sphere；
Having the 9th lens of positive light coke, its thing side is convex surface, including the 17th convex surface sphere and the 18th convex surface sphere；
Having the tenth lens of negative power, its thing side is convex surface, including the 19th convex surface sphere and the 20th concave surface sphere；
Having the 11st lens of positive light coke, its thing side is convex surface, including the 21st convex surface sphere and the 22nd convex surface sphere.
2. slr camera super large aperture wide-angle lens according to claim 1, it is characterised in that the 14th concave surface sphere of the 7th lens and the 15th convex surface spherical shape of the 8th lens are corresponding, and mutually glued.
3. slr camera super large aperture wide-angle lens according to claim 1, it is characterised in that it meets 0.5 < EFL/H < 1, and wherein EFL is the effective focal length of system, and H is imaging surface size；
Further, the first lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
Second lens meet: 1.55 < n < 1.7,40 < λ < 50, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
3rd lens meet: 1.65 < n < 1.85,30 < λ < 45, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
4th lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
5th lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
6th lens meet: 1.5 < n < 1.75,55 < λ < 70, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
7th lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
8th lens meet: 1.4 < n < 1.6,75 < λ < 90, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
9th lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
Tenth lens meet: 1.6 < n < 1.85,23 < λ < 35, and wherein n is the refractive index of glass, and λ is the Abbe number of glass；
11st lens meet: 1.6 < n < 1.8,45 < λ < 60, and wherein n is the refractive index of glass, and λ is the Abbe number of glass.
4. slr camera super large aperture wide-angle lens according to claim 3, it is characterised in that the parameter of each lens is:
5. slr camera super large aperture wide-angle lens according to claim 4, it is characterised in that its system parameter setting is: TTL=135.5；EFL=35.7；H=43.2；F/#=1.23, wherein, TTL is optics overall length, and EFL is effective focal length, and H is imaging surface size, and F/# is aperture-coefficient size, for the inverse of relative aperture.
6. according to the arbitrary described slr camera super large aperture wide-angle lens of claim 1-5, it is characterised in that it is digital single-lens reflex camera super large aperture full width camera lens that specification is 35mmF1.2.
7. slr camera super large aperture wide-angle lens according to claim 6, it is characterised in that the first lens preferentially adopt the glass material of Chengdu light Photoelectric Co., Ltd. to the 11st lens.
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Cited By (9)
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| CN107255857A (en) * | 2017-07-20 | 2017-10-17 | 沈阳中光学科技有限公司 | 135mmF1.4 super large aperture digital camera silent frame camera lens |
| CN107741632A (en) * | 2017-11-14 | 2018-02-27 | 嘉兴中润光学科技有限公司 | Multispectral super large aperture telephotolens |
| CN107843973A (en) * | 2017-11-24 | 2018-03-27 | 嘉兴中润光学科技有限公司 | Standard interchangeable tight shot |
| CN108873258A (en) * | 2018-07-17 | 2018-11-23 | 莆田学院 | A kind of ultra-wide angle, large aperture FISH EYE LENS OPTICS system |
| CN111273428A (en) * | 2020-03-23 | 2020-06-12 | 深圳市东正光学技术有限公司 | Large-target-surface high-precision industrial fixed-focus lens |
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| CN111781708A (en) * | 2020-08-20 | 2020-10-16 | 东莞市长益光电有限公司 | Fixed focus lens for realizing full-color photography under low illumination |
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| CN107255857B (en) * | 2017-07-20 | 2019-09-20 | 沈阳中一光学科技有限公司 | The super large aperture digital camera silent frame camera lens of focal length f=135mm, relative aperture F=1.4 |
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| CN108873258A (en) * | 2018-07-17 | 2018-11-23 | 莆田学院 | A kind of ultra-wide angle, large aperture FISH EYE LENS OPTICS system |
| CN108873258B (en) * | 2018-07-17 | 2020-10-27 | 莆田学院 | Super wide angle, large aperture fisheye lens optical system |
| CN111273428A (en) * | 2020-03-23 | 2020-06-12 | 深圳市东正光学技术有限公司 | Large-target-surface high-precision industrial fixed-focus lens |
| CN111273428B (en) * | 2020-03-23 | 2024-05-31 | 深圳市东正光学技术股份有限公司 | Large-target-surface high-precision industrial prime lens |
| CN111290107A (en) * | 2020-03-31 | 2020-06-16 | 深圳市东正光学技术有限公司 | Large-magnification zoom film lens |
| CN111856735A (en) * | 2020-07-10 | 2020-10-30 | 宁波永新光学股份有限公司 | Objective lens for 40 times biological observation |
| CN111781708A (en) * | 2020-08-20 | 2020-10-16 | 东莞市长益光电有限公司 | Fixed focus lens for realizing full-color photography under low illumination |
| CN116027520A (en) * | 2023-03-30 | 2023-04-28 | 深圳市东正光学技术股份有限公司 | Optical imaging system and optical imaging apparatus |
| CN116027520B (en) * | 2023-03-30 | 2023-06-20 | 深圳市东正光学技术股份有限公司 | Optical imaging system and optical imaging apparatus |
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Address after: 518000 6th floor, building 1, xinwujing Industrial Park, 32 cuibao Road, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Dongzheng Optical Technology Co.,Ltd. Address before: 518000 east area, 10th floor, tianhengda Industrial Park, No. 2, Chengxin Road, Baolong Industrial Zone, Longgang street, Longgang District, Shenzhen, Guangdong Province Patentee before: SHENZHEN DZO OPTICS TECHNOLOGY Co.,Ltd. |
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