CN104252033A - APS-C telephoto lens for digital mirrorless camera - Google Patents
APS-C telephoto lens for digital mirrorless camera Download PDFInfo
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- CN104252033A CN104252033A CN201410491965.5A CN201410491965A CN104252033A CN 104252033 A CN104252033 A CN 104252033A CN 201410491965 A CN201410491965 A CN 201410491965A CN 104252033 A CN104252033 A CN 104252033A
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Abstract
The invention discloses an APS-C telephoto lens for a digital mirrorless system camera. The APS-C telephoto lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens from the object space, wherein the first lens is a spherical positive lens projected towards the object space, the second lens is a spherical positive lens projected towards the object space, the third lens is a spherical negative lens recessed towards the object space, the fourth lens is a spherical negative lens recessed towards the object space, the fifth lens is a spherical negative lens recessed towards the object space, the sixth lens is a spherical positive lens projected towards the object space, the seventh lens is a spherical positive lens projected towards the object space, the eighth lens is a spherical negative lens recessed towards the object space, the ninth lens is a spherical positive lens projected towards the object space, and the tenth lens is a spherical negative lens recessed towards the object space. The APS-C telephoto lens has the advantages that the large aperture design is adopted, the shutter speed is accelerated, and in addition, the cost performance is high.
Description
Technical field
The present invention relates to a kind of digital camera lens, the image quality of to be a kind of specification be specifically 35mmf0.95 is high, and cost performance is high, lightly, and number micro-one camera APS-C picture camera lens of high shutter speed.
Background technology
Along with the development of science and technology, digital camera is constantly towards compact and multi-functional future development, in order to easy to carry and meet the demand of hommization, digital camera not only needs to have good image quality, also need less with lower cost simultaneously, effectively can promote the application of this digital camera simultaneously.But in the camera lens of digital camera, the Production design of domestic camera lens exists blank, and be nearly all the external camera lens produced, these camera lenses are expensive, and cost is high, and cost performance is low, is a white elephant to vast commonness photograph fan.
Summary of the invention
In view of exist in above-mentioned prior art shortcoming, the object of this invention is to provide a image quality high, cost performance is high, have independent intellectual property right, outward appearance is exquisite, and micro-list is special, lightly, the specification of high shutter speed is number micro-one camera APS-C picture camera lens of 35mmf0.95.
Realizing technical scheme of the present invention is: a kind of digital micro-one camera APS-C picture camera lens, and it comprises the first lens successively from object space, the second lens, the 3rd lens the 4th lens, 5th lens, the 6th lens, the 7th lens, 8th lens, the 9th lens, the tenth lens.First lens are convex in object space sphere positive lens, comprise the first sphere (convex surface) and the second sphere (convex surface), second lens are convex in object space sphere positive lens, comprise the 3rd (convex surface) sphere and the 4th sphere (concave surface), 3rd lens are recessed to object space sphere negative lens, comprise the 5th sphere (concave surface) and the 6th sphere (concave surface), 4th lens are recessed to object space sphere negative lens, comprise the 7th sphere (concave surface) and the 8th sphere ((convex surface), 5th lens are recessed to object space sphere negative lens, comprise the 9th sphere (concave surface) and the tenth sphere (convex surface), 6th lens are convex in object space sphere positive lens, comprise the 11 sphere (convex surface) and the 12 sphere (convex surface), 7th lens are convex in object space sphere positive lens, comprise the 13 sphere (convex surface) and the 14 sphere (convex surface), 8th lens are recessed to object space sphere negative lens, comprise the 15 sphere (concave surface) and the 16 sphere (convex surface), 9th lens are convex in object space sphere positive lens, comprise the 17 sphere (convex surface) and the 18 sphere (convex surface), tenth lens are recessed to object space sphere negative lens, comprise the 19 sphere (concave surface) and the 20 sphere (convex surface).
First lens to the tenth lens are the glass material that Chengdu Guangming Photoelectricity Joint-stock Co., Ltd produces.
The refractive index of the first lens is greater than 1.5 and is less than 1.6, and its dispersion is greater than 64 and is less than 65, and preferred employing glass model is HK9, and refractive index and dispersion are respectively 1.51637,64.07.
The refractive index of the second lens is greater than 1.8 and is less than 1.85, and its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF32A, and refractive index and dispersion are respectively 1.83565,42.29.
The refractive index of the 3rd lens is greater than 1.6 and is less than 1.65, and its dispersion is greater than 35 and is less than 40, and preferred employing glass model is HF3, and refractive index and dispersion are 1.61655,36.61 respectively.
The refractive index of the 4th lens is greater than 1.65 and is less than 1.7, and its dispersion is greater than 30 and is less than 35, and preferred employing glass model is HZF10, and refractive index and dispersion are respectively 1.68893,31.17.
The refractive index of the 5th lens is greater than 1.8 and is less than 1.85, and its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF55A, and refractive index and dispersion are respectively 1.835,42.97.
The refractive index of the 6th lens is greater than 1.8 and is less than 1.85, and its dispersion is greater than 45 and is less than 50, and preferred employing glass model is HTAF3, and refractive index and dispersion are 1.804,46.58 respectively.
The refractive index of the 7th lens is greater than 1.8 and is less than 1.85, and its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF32A, and refractive index and dispersion are 1.83565,42.29 respectively.
The refractive index of the 8th lens is greater than 1.65 and is less than 1.7, and its dispersion is greater than 30 and is less than 35, and preferred employing glass model is HZF11, and refractive index and dispersion are 1.69895,30.06 respectively.
The refractive index of the 9th lens is greater than 1.75 and is less than 1.8, and its dispersion is greater than 50 and is less than 55, and preferred employing glass model is HLAK3, and refractive index and dispersion are 1.74693,50.95 respectively.
The refractive index of the tenth lens is greater than 1.8 and is less than 1.85, and its dispersion is greater than 25 and is less than 30, and preferred employing glass model is HZF7, and refractive index and dispersion are 1.80627,25.37 respectively.
Light field is on object space position, and between the 3rd lens and the 4th lens, it can directly utilize the perforate size of aperture to control light-inletting quantity.
This lens parameters is:
Effective focal length f=35mm of the present invention, relative aperture F=0.95, the invention has the advantages that: aperture super large, and logical light quantity is large, and image quality is better; Be applicable to shooting fast moving objects, shutter speed is high; Adapt to dark surrounds shooting.Large aperture can increase light-inletting quantity thus shorten exposure time; Better can take the effect of virtualization background so be more suitable for taking portrait.Eyeglass of the present invention all adopts spherical design, revises various aberration, also can avoid the aberration of the sphere produced because adopting spherical mirror, simplifies structure and improves image quality.Eyeglass all adopts glass material, improves the quality of eyeglass own, the sharpness of camera lens.Improve the usability of camera lens.
Accompanying drawing explanation
Fig. 1 is the structural representation of digital camera full width camera lens of the present invention.
Fig. 2 is the MTF figure of digital camera full width camera lens of the present invention.
Fig. 3 is the curvature of field figure of digital camera full width camera lens of the present invention.
Fig. 4 is the optical distortion figure of digital camera full width camera lens of the present invention.
Fig. 5 is the relative exposure figure of digital camera full width camera lens of the present invention.
In figure, 1 is the first lens, and 2 is the second lens, and 3 is the 3rd lens, and 4 is the 4th lens, and 5 is the 5th lens, and 6 is the 6th lens, and 7 is the 7th lens, and 8 is the 8th lens, and 9 is the 9th lens, and 10 is the tenth lens.
Embodiment
See shown in Fig. 1 to Fig. 5, number micro-one camera APS-C picture camera lens of the present invention to be a kind of specification be 35mmf0.95, it comprises the first lens (1) successively from object space, second lens (2), 3rd lens (3), 4th lens (4), 5th lens (5), 6th lens (6), 7th lens (7), 8th lens (8), the 9th lens (9), the tenth lens (10).First lens (1) for convex to object space sphere positive lens, comprise the first sphere (convex surface) and the second sphere (convex surface), second lens (2) for convex to object space sphere positive lens, comprise the 3rd (convex surface) sphere and the 4th sphere (concave surface), 3rd lens (3) for recessed to object space sphere negative lens, comprise the 5th sphere (concave surface) and the 6th sphere (concave surface), 4th lens (4) for recessed to object space sphere negative lens, comprise the 7th sphere (concave surface) and the 8th sphere ((convex surface), 5th lens (5) for recessed to object space sphere negative lens, comprise the 9th sphere (concave surface) and the tenth sphere (convex surface), 6th lens (6) for convex to object space sphere positive lens, comprise the 11 sphere (convex surface) and the 12 sphere (convex surface), 7th lens (7) for convex to object space sphere positive lens, comprise the 13 sphere (convex surface) and the 14 sphere (convex surface), 8th lens (8) for recessed to object space sphere negative lens, comprise the 15 sphere (concave surface) and the 16 sphere (convex surface), 9th lens (9) for convex to object space sphere positive lens, comprise the 17 sphere (convex surface) and the 18 sphere (convex surface), tenth lens (10) for recessed to object space sphere negative lens, comprise the 19 sphere (concave surface) and the 20 sphere (convex surface).First lens (1) to the tenth lens (10) are the glass material that Chengdu Guangming Photoelectricity Joint-stock Co., Ltd produces.The refractive index of the first lens (1) is greater than 1.5 and is less than 1.6, and its dispersion is greater than 64 and is less than 65, and preferred employing glass model is HK9, and refractive index and dispersion are respectively 1.51637,64.07.The refractive index of the second lens (2) is greater than 1.8 and is less than 1.85, and its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF32A, and refractive index and dispersion are respectively 1.83565,42.29.The refractive index of the 3rd lens (3) is greater than 1.6 and is less than 1.65, and its dispersion is greater than 35 and is less than 40, and preferred employing glass model is HF3, and refractive index and dispersion are 1.61655,36.61 respectively.The refractive index of the 4th lens (4) is greater than 1.65 and is less than 1.7, and its dispersion is greater than 30 and is less than 35, and preferred employing glass model is HZF10, and refractive index and dispersion are respectively 1.68893,31.17.The refractive index of the 5th lens (5) is greater than 1.8 and is less than 1.85, and its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF55A, and refractive index and dispersion are respectively 1.835,42.97.The refractive index of the 6th lens (6) is greater than 1.8 and is less than 1.85, and its dispersion is greater than 45 and is less than 50, and preferred employing glass model is HTAF3, and refractive index and dispersion are 1.804,46.58 respectively.The refractive index of the 7th lens (7) is greater than 1.8 and is less than 1.85, and its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF32A, and refractive index and dispersion are 1.83565,42.29 respectively.The refractive index of the 8th lens (8) is greater than 1.65 and is less than 1.7, and its dispersion is greater than 30 and is less than 35, and preferred employing glass model is HZF11, and refractive index and dispersion are 1.69895,30.06 respectively.The refractive index of the 9th lens (9) is greater than 1.75 and is less than 1.8, and its dispersion is greater than 50 and is less than 55, and preferred employing glass model is HLAK3, and refractive index and dispersion are 1.74693,50.95 respectively.The refractive index of the tenth lens (10) is greater than 1.8 and is less than 1.85, and its dispersion is greater than 25 and is less than 30, and preferred employing glass model is HZF7, and refractive index and dispersion are 1.80627,25.37 respectively.
Light field, on object space position, is positioned between the 3rd lens (3) and the 4th lens (4), and it can directly utilize the perforate size of aperture to control light-inletting quantity.
The related parameter values of optical system of the present invention, it is successively from the first lens (1) to the tenth lens (10), wherein radius of curvature R be each with the radius-of-curvature of optical axis O surface of intersection, when curvature is infinitely great, show that this face is plane.Spacing d be along before optical axis direction is by object space relative to distance below, effective aperture is maximum effective clear aperture of each, and wherein all numerical value of radius of curvature R and spacing d are all measurement unit with millimeter.
This lens parameters is:
The invention has the advantages that: aperture super large, logical light quantity is large, and image quality is better; Be applicable to shooting fast moving objects, shutter speed is high; Adapt to dark surrounds shooting.Large aperture can increase light-inletting quantity thus shorten exposure time; Better can take the effect of virtualization background so be more suitable for taking portrait.Eyeglass of the present invention all adopts spherical design, revises various aberration, also can avoid the aberration of the sphere produced because adopting spherical mirror, simplifies structure and improves image quality.Eyeglass all adopts glass material, improves the quality of eyeglass own, the sharpness of camera lens.Improve the usability of camera lens.
Claims (13)
1. number micro-one camera APS-C picture camera lens, is characterized in that: comprise the first lens successively from object space, the second lens, the 3rd lens the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens.First lens are convex in object space sphere positive lens, comprise the first sphere (convex surface) and the second sphere (convex surface), second lens are convex in object space sphere positive lens, comprise the 3rd (convex surface) sphere and the 4th sphere (concave surface), 3rd lens are recessed to object space sphere negative lens, comprise the 5th sphere (concave surface) and the 6th sphere (concave surface), 4th lens are recessed to object space sphere negative lens, comprise the 7th sphere (concave surface) and the 8th sphere ((convex surface), 5th lens are recessed to object space sphere negative lens, comprise the 9th sphere (concave surface) and the tenth sphere (convex surface), 6th lens are convex in object space sphere positive lens, comprise the 11 sphere (convex surface) and the 12 sphere (convex surface), 7th lens are convex in object space sphere positive lens, comprise the 13 sphere (convex surface) and the 14 sphere (convex surface), 8th lens are recessed to object space sphere negative lens, comprise the 15 sphere (concave surface) and the 16 sphere (convex surface), 9th lens are convex in object space sphere positive lens, comprise the 17 sphere (convex surface) and the 18 sphere (convex surface), tenth lens are recessed to object space sphere negative lens, comprise the 19 sphere (concave surface) and the 20 sphere (convex surface).
2. digital micro-one camera APS-C picture camera lens as claimed in claim 1, is characterized in that: the first lens to the tenth lens are the glass material that Chengdu Guangming Photoelectricity Joint-stock Co., Ltd produces.
3. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the first lens is greater than 1.5 and is less than 1.6, its dispersion is greater than 64 and is less than 65, and preferred employing glass model is HK9, and refractive index and dispersion are respectively 1.51637,64.07.
4. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the second lens is greater than 1.8 and is less than 1.85, its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF32A, and refractive index and dispersion are respectively 1.83565,42.29.
5. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the 3rd lens is greater than 1.6 and is less than 1.65, its dispersion is greater than 35 and is less than 40, and preferred employing glass model is HF3, and refractive index and dispersion are 1.61655,36.61 respectively.
6. as claim 2 number micro-one camera APS-C picture camera lens, it is characterized in that: the refractive index of the 4th lens is greater than 1.65 and is less than 1.7, its dispersion is greater than 30 and is less than 35, and preferred employing glass model is HZF10, and refractive index and dispersion are respectively 1.68893,31.17.
7. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the 5th lens is greater than 1.8 and is less than 1.85, its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF55A, and refractive index and dispersion are respectively 1.835,42.97.
8. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the 6th lens is greater than 1.8 and is less than 1.85, its dispersion is greater than 45 and is less than 50, and preferred employing glass model is HTAF3, and refractive index and dispersion are 1.804,46.58 respectively.
9. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the 7th lens is greater than 1.8 and is less than 1.85, its dispersion is greater than 40 and is less than 45, and preferred employing glass model is HZLAF32A, and refractive index and dispersion are 1.83565,42.29 respectively.
10. digital micro-one camera APS-C picture camera lens as claimed in claim 2, it is characterized in that: the refractive index of the 8th lens is greater than 1.65 and is less than 1.7, its dispersion is greater than 30 and is less than 35, and preferred employing glass model is HZF11, and refractive index and dispersion are 1.69895,30.06 respectively.
11. digital micro-one camera APS-C picture camera lenses as claimed in claim 2, it is characterized in that: the refractive index of the 9th lens is greater than 1.75 and is less than 1.8, its dispersion is greater than 50 and is less than 55, and preferred employing glass model is HLAK3, and refractive index and dispersion are 1.74693,50.95 respectively.
12. digital micro-one camera APS-C picture camera lenses as claimed in claim 2, it is characterized in that: the refractive index of the tenth lens is greater than 1.8 and is less than 1.85, its dispersion is greater than 25 and is less than 30, and preferred employing glass model is HZF7, and refractive index and dispersion are 1.80627,25.37 respectively.
13. digital micro-one camera APS-C picture camera lenses as claimed in claim 1, is characterized in that this lens parameters is:
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410491965.5A CN104252033A (en) | 2014-01-25 | 2014-09-22 | APS-C telephoto lens for digital mirrorless camera |
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| CN201410036225 | 2014-01-25 | ||
| CN201410036225.2 | 2014-01-25 | ||
| CN201410491965.5A CN104252033A (en) | 2014-01-25 | 2014-09-22 | APS-C telephoto lens for digital mirrorless camera |
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| CN201410337507.6A Active CN104076486B (en) | 2014-01-25 | 2014-07-15 | Full-width lens of digital camera |
| CN201410491965.5A Pending CN104252033A (en) | 2014-01-25 | 2014-09-22 | APS-C telephoto lens for digital mirrorless camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501809A (en) * | 2019-09-20 | 2019-11-26 | 沈阳中一光学科技有限公司 | The digital camera silent frame micro-lens of 1-5 times of zoom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104360461B (en) * | 2014-12-01 | 2016-08-24 | 东莞市奥普特自动化科技有限公司 | Lens combination structure and there is the machine visual lens of this structure |
| CN104730692B (en) * | 2015-03-09 | 2017-01-18 | 沈阳师范大学 | Full-frame lens of micro single-lens reflex camera |
| CN105403982B (en) * | 2015-12-28 | 2017-12-22 | 中山联合光电科技股份有限公司 | It is a kind of high as matter is used for unmanned plane optical imaging lens |
| CN105759403B (en) * | 2016-04-19 | 2022-09-13 | 深圳市点睛创视技术有限公司 | Miniature projection lens |
| CN108897131B (en) * | 2018-09-07 | 2023-06-06 | 福建福光股份有限公司 | Eye protection ocular with large exit pupil diameter and large eye point distance |
| CN111596532B (en) * | 2020-06-19 | 2024-05-24 | 深圳珑璟光电技术有限公司 | Double telecentric lens and digital projection lithography system |
| CN113219629B (en) * | 2021-04-28 | 2023-06-13 | 长光卫星技术股份有限公司 | Space luminous remote sensing optical lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001318309A (en) * | 2000-05-12 | 2001-11-16 | Canon Inc | Photographing lens and optical apparatus using it |
| KR20090087422A (en) * | 2008-02-12 | 2009-08-17 | 가부시키가이샤 니콘 | Image taking lens, optical apparatus having image taking lens, and method of manufacturing image taking lens |
| JP5151524B2 (en) * | 2008-02-12 | 2013-02-27 | 株式会社ニコン | PHOTOGRAPHIC LENS, OPTICAL DEVICE EQUIPPED WITH THIS PHOTOGRAPHIC LENS, AND IMAGE-FORMING METHOD |
| JP5578946B2 (en) * | 2010-06-02 | 2014-08-27 | キヤノン株式会社 | Optical system and optical apparatus having the same |
| JP5791480B2 (en) * | 2011-11-30 | 2015-10-07 | キヤノン株式会社 | Optical system and optical apparatus having the same |
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2014
- 2014-07-15 CN CN201410337507.6A patent/CN104076486B/en active Active
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501809A (en) * | 2019-09-20 | 2019-11-26 | 沈阳中一光学科技有限公司 | The digital camera silent frame micro-lens of 1-5 times of zoom |
| CN110501809B (en) * | 2019-09-20 | 2021-07-23 | 沈阳中一光学科技有限公司 | Full-frame macro lens of digital camera |
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| CN104076486B (en) | 2017-02-08 |
| CN104076486A (en) | 2014-10-01 |
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Application publication date: 20141231 |