CN104730692B - Full-frame lens of micro single-lens reflex camera - Google Patents
Full-frame lens of micro single-lens reflex camera Download PDFInfo
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- CN104730692B CN104730692B CN201510101511.7A CN201510101511A CN104730692B CN 104730692 B CN104730692 B CN 104730692B CN 201510101511 A CN201510101511 A CN 201510101511A CN 104730692 B CN104730692 B CN 104730692B
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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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- 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
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
The invention provides a full-frame lens of a micro single-lens reflex camera. The full-frame lens mainly solves the problems that all the existing lenses are spherical mirrors, so that aberration is generated, and the imaging quality is not high. The full-frame lens of the micro single-lens reflex camera comprises a first lens body, a second lens body, a third lens body, a fourth lens body, a fifth lens body, a sixth lens body, a seventh lens body, an eighth lens body and a ninth lens body in sequence from the position close to an object. The compact design with a spherical surface and an aspheric surface is adopted, the aberration, generated due to the fact that only spherical mirrors are adopted, of a spherical surface is avoided, the structure is simplified, the imaging quality is improved, the field angle is large, the full-frame lens is suitable for shooting of photography works of portraits, landscapes and humanity sketches, the whole lens is made of glass, the performance parameters of a single lens body are improved, the yield of the whole lens is improved, and the lens is convenient to produce actually.
Description
Technical field
The present invention relates to a kind of micro- singledigit camera full width camera lens, specifically a kind of specification is micro- odd number of 35mmf2.0
Code-phase machine full width camera lens, belongs to camera lens preparation field.
Background technology
Human development history proves, neither one technology can be forever brilliant.In film epoch, the medium glue of stored images
Piece strict protection must be unable to light leak when finding a view.However, entering the digital age, situation has the change ccd of essence
It is not afraid of light leak.It both can be used to find a view it is also possible to be used further to be imaged after clearing, so, the necessity that illuminator exists is
Through having a greatly reduced quality, its operation principle, determine illuminator and find a view and be not suitable for digital photography, all electronic can realized completely
Digital camera on it is not necessary that also retain a mechanical part illuminator.Although being taken because can take into account by camera lens
Scape with protect film not light leak and make people that the structure of illuminator bulky complex can be tolerated, but current digital age image passes
The characteristic not being afraid of light leak of sensor, makes the presence of illuminator become dispensable, with the day of electronic viewfinding technology
Attain perfect, some day, the definition of electronic viewfinding and lightness sooner or later can be well enough to replace illuminator.So, in theory
For, micro- one camera can have slr camera all advantages almost all of.Wait demand once breaking out, such issues that certainly
Can be readily solved.This camera lens is exactly exclusively for the design of micro- one camera.Compare single anti-camera lens, more compact and quality is higher.
Content of the invention
For solving the above problems, provide a kind of micro- singledigit camera full width camera lens.This micro- singledigit camera full width camera lens is adopted
With sphere plus aspheric surface compact design, it is to avoid the aberration of the sphere because all producing using coquille, simplify structure and improvement
Image quality.The angle of visual field larger it is adaptable to portrait, landscape, the shooting of the photographic work of humane essay.Eyeglass is all using glass
Material, improves single lens performance parameter.The yields of whole camera lens can be improved and be easy to actual production.
For achieving the above object, the present invention adopts following technical proposals:
Micro- singledigit camera full width camera lens, it includes the first lens successively from object space, the second lens, the 3rd lens, and the 4th
Lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens；Wherein, described first lens are concave-concave to ball
Face minus lenses, including concave surface first sphere and concave surface second sphere, the second lens are biconvex to sphere plus lens, including convex surface the
Two spheres and convex surface the 3rd sphere；First lens and the second lens group become balsaming lenss；3rd lens are biconvex sphere plus lens,
Including convex surface the 4th sphere and convex surface the 5th sphere；4th lens be concave-concave to sphere minus lenses, include concave surface the 5th sphere and
Concave surface the 6th sphere；3rd lens and the 4th lens group become balsaming lenss；5th lens are aspheric surface bent moon minus lenses, including recessed
Face the 7th aspheric surface and convex surface the 8th aspheric surface；6th lens be concave-concave to sphere minus lenses, including concave surface the 9th sphere with recessed
Face the tenth sphere；7th lens are biconvex sphere plus lens, including convex surface the tenth sphere and convex surface the 11st sphere；6th lens
Become balsaming lenss with the 7th lens group；8th lens are biconvex sphere plus lens, including convex surface the 12nd sphere and convex surface the tenth
Three spheres；9th lens are concave-concave sphere minus lenses, including concave surface the 13rd sphere and concave surface the 14th sphere；8th lens and
9th lens group becomes balsaming lenss；First lens are glass material to the 9th lens and make；Diaphragm is located on object space position, position
Between the 4th lens and the 5th lens.
The refractive index of described first lens is more than 1.4 and is less than 1.6, and its dispersion is more than 50 and is less than 75, preferably hk51cdgm
Glass, refractive index and dispersion are respectively 1.523,58.6.
The refractive index of described second lens is more than 1.75 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably hzlaf50b
Cdgm, refractive index and dispersion are respectively 1.804,46.5.
The refractive index of described 3rd lens is more than 1.75 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably hzlaf50b
Cdgm, refractive index and dispersion are respectively 1.804,46.5.
The refractive index of described 4th lens is more than 1.6 and is less than 1.9, and its dispersion is more than 20 and is less than 35, preferably hzf4cdgm
Glass, refractive index and dispersion are respectively 1.728,28.3.
The refractive index of described 5th lens is more than 1.65 and is less than 1.80, and its dispersion is more than 20 and is less than 35, preferably Japan
The special moulded glass of sumita kcd120 low melting point aspheric surface, refractive index and dispersion are respectively 1.7225,29.2.
The refractive index of described 6th lens is more than 1.4 and is less than 1.65, and its dispersion is more than 65 and is less than 75, preferably adopts
Hqk3cdgm, refractive index and dispersion are 1.487,70.1 respectively.
The refractive index of described 7th lens is more than 1.75 and is less than 1.9, and its dispersion is more than 35 and is less than 50, preferably adopts
Hzlaf55c cdgm, refractive index and dispersion are 1.83500,42.97 respectively.
The refractive index of described 8th lens is more than 1.75 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably hzlaf50b
Cdgm, refractive index and dispersion are respectively 1.804,46.5；The refractive index of described 9th lens is more than 1.6 and is less than 1.9, and its dispersion is big
It is less than 35 in 20, the preferably glass of hzf10 cdgm, refractive index and dispersion respectively 1.689,31.1.
The parameter of described micro- singledigit camera full width camera lens is:
；Described 7th with the 8th aspherical lens formula data is:
The invention has the beneficial effects as follows:
The present invention adds aspheric surface compact design using sphere, it is to avoid the picture of the sphere because all being produced using coquille
Difference, simplifies structure and improves image quality.The special full width angle of view of this micro- singledigit camera larger it is adaptable to portrait, wind
Scape, the shooting of the photographic work of humane essay.Eyeglass, all using glass material, improves single lens performance parameter.Permissible
Improve the yields of whole camera lens and be easy to actual production.
Brief description
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 illumination figure of digital camera full width camera lens of the present invention.
Specific embodiment
Reference picture 1-5, the effective focal length of the present invention is f=35mm, and relative aperture is f=2, entirely the regarding of whole optical system
Rink corner is 64 degree, and its camera lens overall length is 56mm, and structure is referring to Fig. 1 so as to the serviceability of camera lens can effectively be improved.
With reference to Fig. 1, micro- singledigit camera full width camera lens, it includes the first lens 1 successively from object space, the second lens 2, and the 3rd
Lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6, the 7th lens 7, the 8th lens 8, the 9th lens 9；Wherein, described
For concave-concave to sphere minus lenses, including concave surface first sphere and concave surface second sphere, the second lens 2 are biconvex to ball to one lens 1
Face plus lens, including convex surface second sphere and convex surface the 3rd sphere；First lens 1 and the second lens 2 composition balsaming lenss；3rd
Lens 3 are biconvex sphere plus lens, including convex surface the 4th sphere and convex surface the 5th sphere；4th lens 4 are that concave-concave is born to sphere
Lens, including concave surface the 5th sphere and concave surface the 6th sphere；3rd lens 3 and the 4th lens 4 composition balsaming lenss；5th lens
5 is aspheric surface bent moon minus lenses, including concave surface the 7th aspheric surface and convex surface the 8th aspheric surface；6th lens 6 are concave-concave to sphere
Minus lenses, including concave surface the 9th sphere and concave surface the tenth sphere；7th lens 7 are biconvex sphere plus lens, including convex surface the tenth
Sphere and convex surface the 11st sphere；6th lens 6 and the 7th lens 7 composition balsaming lenss；8th lens 8 are that biconvex sphere is just saturating
Mirror, including convex surface the 12nd sphere and convex surface the 13rd sphere；9th lens 9 are concave-concave sphere minus lenses, including concave surface the tenth
Three spheres and concave surface the 14th sphere；8th lens 8 and the 9th lens 9 composition balsaming lenss；First lens 1 to the 9th lens 9
It is glass material to make；Diaphragm 10 is located on object space position, positioned between the 4th lens 4 and the 5th lens 5.
The refractive index of the first lens 1 is more than 1.4 and is less than 1.6, and its dispersion is more than 50 and is less than 75, the preferably glass of hk51cdgm
Glass, refractive index and dispersion are respectively 1.523,58.6.
The refractive index of the second lens 2 is more than 1.75 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably hzlaf50b
Cdgm, refractive index and dispersion are respectively 1.804,46.5.
The refractive index of the 3rd lens 3 is more than 1.75 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably hzlaf50b
Cdgm, refractive index and dispersion are respectively 1.804,46.5.
The refractive index of the 4th lens 4 is more than 1.6 and is less than 1.9, and its dispersion is more than 20 and is less than 35, the preferably glass of hzf4cdgm
Glass, refractive index and dispersion are respectively 1.728,28.3.
The refractive index of the 5th lens 5 is more than 1.65 and is less than 1.80, and its dispersion is more than 20 and is less than 35, preferably Japanese sumita
The special moulded glass of kcd120 low melting point aspheric surface, refractive index and dispersion are respectively 1.7225,29.2.
The refractive index of the 6th lens 6 is more than 1.4 and is less than 1.65, and its dispersion is more than 65 and is less than 75, preferably adopts hqk3
Cdgm, refractive index and dispersion are 1.487,70.1 respectively.
The refractive index of the 7th lens 7 is more than 1.75 and is less than 1.9, and its dispersion is more than 35 and is less than 50, preferably adopts
Hzlaf55c cdgm, refractive index and dispersion are 1.83500,42.97 respectively.
The refractive index of the 8th lens 8 is more than 1.75 and is less than 1.85, and its dispersion is more than 35 and is less than 50, preferably hzlaf50b
Cdgm, refractive index and dispersion are respectively 1.804,46.5；The refractive index of the 9th lens 9 is more than 1.6 and is less than 1.9, and its dispersion is more than
20 are less than 35, the preferably glass of hzf10 cdgm, refractive index and dispersion respectively 1.689,31.1.
The parameter of described micro- singledigit camera full width camera lens is:
；Described 7th with the 8th aspherical lens formula data is:
With reference to Fig. 2, the diagonal half defining cmos effective area is maximum image height to mtf performance, is set to 1.0 visual fields, is
The spatial frequency of the different image height of measurement, takes 0.8 visual field, 0.6 visual field, 0 visual field.In the present embodiment, cmos diagonal half is
21.6mm, i.e. the image height of 1.0 visual fields, the image height of 0.7 visual field is 21.6*0.7=15.12, the image height 21.6*0.5=of 0.5 visual field
The image height of 10.8,0 visual fields is 0mm, as cmos central point.
Spherical aberration, astigmatism, illumination with reference to Fig. 3 to Fig. 5, digital camera full width camera lens meridianal curvature of field and Sagittal field curvature be more than-
0.16mm, less than 0.12mm, optical distortion is more than -0.09% and is less than 0, is satisfied by the requirement of imaging performance.Its edge relative
Illumination reaches 33%, meets the micro- one camera imaging performance of modern ultrahigh pixel (more than 24,000,000) and requires.
Claims (10)
1. micro- singledigit camera full width camera lens is it is characterised in that it includes the first lens successively from object space, the second lens, and the 3rd
Lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens；Wherein, described first lens
For concave-concave to sphere minus lenses, including concave surface first sphere and concave surface second sphere, the second lens be biconvex to sphere plus lens,
Including convex surface second sphere and convex surface the 3rd sphere；First lens and the second lens group become balsaming lenss；3rd lens are biconvex
Sphere plus lens, including convex surface the 4th sphere and convex surface the 5th sphere；4th lens be concave-concave to sphere minus lenses, including concave surface
5th sphere and concave surface the 6th sphere；3rd lens and the 4th lens group become balsaming lenss；5th lens are born for aspheric surface bent moon
Lens, including concave surface the 7th aspheric surface and convex surface the 8th aspheric surface；6th lens be concave-concave to sphere minus lenses, including concave surface the
Nine spheres and concave surface the tenth sphere；7th lens are biconvex sphere plus lens, including convex surface the tenth sphere and convex surface the 11st ball
Face；6th lens and the 7th lens group become balsaming lenss；8th lens are biconvex sphere plus lens, including convex surface the 12nd sphere
With convex surface the 13rd sphere；9th lens are concave-concave sphere minus lenses, including concave surface the 13rd sphere and concave surface the 14th sphere；
8th lens and the 9th lens group become balsaming lenss；First lens are glass material to the 9th lens and make；Diaphragm is located at thing
Orientation is put, positioned between the 4th lens and the 5th lens.
2. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described first lens is big
It is less than 1.6 in 1.4, its dispersion is more than 50 and is less than 75.
3. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described second lens is big
It is less than 1.85 in 1.75, its dispersion is more than 35 and is less than 50.
4. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described 3rd lens is big
It is less than 1.85 in 1.75, its dispersion is more than 35 and is less than 50.
5. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described 4th lens is big
It is less than 1.9 in 1.6, its dispersion is more than 20 and is less than 35.
6. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described 5th lens is big
It is less than 1.80 in 1.65, its dispersion is more than 20 and is less than 35.
7. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described 6th lens is big
It is less than 1.65 in 1.4, its dispersion is more than 65 and is less than 75.
8. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described 7th lens is big
It is less than 1.9 in 1.75, its dispersion is more than 35 and is less than 50.
9. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that the refractive index of described 8th lens is big
It is less than 1.85 in 1.75, its dispersion is more than 35 and is less than 50；The refractive index of described 9th lens is more than 1.6 and is less than 1.9, and its dispersion is big
It is less than 35 in 20.
10. as claimed in claim 1 micro- singledigit camera full width camera lens it is characterised in that described micro- singledigit camera full width
The parameter of camera lens is:
；
Described 7th with the 8th aspherical lens formula data is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101511.7A CN104730692B (en) | 2015-03-09 | 2015-03-09 | Full-frame lens of micro single-lens reflex camera |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510101511.7A CN104730692B (en) | 2015-03-09 | 2015-03-09 | Full-frame lens of micro single-lens reflex camera |
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| CN104730692A CN104730692A (en) | 2015-06-24 |
| CN104730692B true CN104730692B (en) | 2017-01-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016125402B4 (en) * | 2016-12-22 | 2018-12-20 | Carl Zeiss Ag | A compact camera lens of the highest image quality for a camera with a full-format sensor, use of such a camera lens and a camera or film camera with such a camera lens |
| CN107329229A (en) * | 2017-08-28 | 2017-11-07 | 深圳市广恩德科技有限公司 | A kind of large aperture focal length high definition camera lens |
| CN109960004B (en) * | 2017-12-22 | 2021-05-07 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN111929851B (en) * | 2020-09-29 | 2020-12-15 | 瑞泰光学(常州)有限公司 | Image pickup optical lens |
| CN112014951B (en) * | 2020-10-13 | 2020-12-29 | 瑞泰光学(常州)有限公司 | Image pickup optical lens |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4005300A1 (en) * | 1990-02-20 | 1991-08-22 | Leica Camera Gmbh | CAMERA LENS |
| JP3642465B2 (en) * | 1999-03-26 | 2005-04-27 | フジノン株式会社 | Photo lens for electronic still camera |
| JP2009069794A (en) * | 2007-08-21 | 2009-04-02 | Olympus Imaging Corp | Image-forming optical system and electronic imaging apparatus including the same |
| JP5585425B2 (en) * | 2010-12-07 | 2014-09-10 | ソニー株式会社 | Zoom lens and imaging device |
| JP2013125074A (en) * | 2011-12-13 | 2013-06-24 | Sony Corp | Zoom lens and image pickup apparatus |
| JP2014056021A (en) * | 2012-09-11 | 2014-03-27 | Ricoh Imaging Co Ltd | Ocular lens system |
| JP6253239B2 (en) * | 2013-03-18 | 2017-12-27 | キヤノン株式会社 | Zoom lens, optical system, and imaging apparatus having the same |
| CN104076486B (en) * | 2014-01-25 | 2017-02-08 | 徐中一 | Full-width lens of digital camera |
| CN103913817A (en) * | 2014-03-27 | 2014-07-09 | 徐中一 | Ultra-large-aperture full-width lens for digital single-lens reflex camera |
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2015
- 2015-03-09 CN CN201510101511.7A patent/CN104730692B/en not_active Expired - Fee Related
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