CN104570288B - A kind of blind-area-free panoramic camera lens - Google Patents
A kind of blind-area-free panoramic camera lens Download PDFInfo
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- CN104570288B CN104570288B CN201510028272.7A CN201510028272A CN104570288B CN 104570288 B CN104570288 B CN 104570288B CN 201510028272 A CN201510028272 A CN 201510028272A CN 104570288 B CN104570288 B CN 104570288B
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- microscope group
- lens
- central
- camera lens
- relaying
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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
-
- 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
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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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
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/0095—Relay lenses or rod lenses
-
- 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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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The present invention provides a kind of blind-area-free panoramic camera lens, and the camera lens is main to be made up of catadioptric mirror, central microscope group and relaying microscope group；Wherein, there is a through hole at catadioptric mirror center, and central microscope group is located in the through hole, and catadioptric mirror, central microscope group and relaying microscope group three are coaxial；The central microscope group, for the light of central vision to be transmitted and converges to the relaying microscope group；The refringent/reflection lens, for by the light line reflection of peripheral field and converge to it is described relaying saturating group；The relaying microscope group, for incident convergence of rays to be imaged on into image planes.The angle of visual field of full shot of the present invention reaches 270 degree in vertical direction of principal axis, and horizontal direction reaches 360 degree, and in center without blind area, compact, compact conformation is easy to debug.
Description
Technical field
The present invention relates to optical system and device design field, and in particular to a kind of blind-area-free panoramic camera lens.
Background technology
Instant messages are obtained in big field range, it is particularly significant not only for national defence monitoring, investigation etc. of fighting, also extensively
Be applied to the civil areas such as amusement photography, wide-angle lens popular in the market, the angle of visual field typically at 120 degree or so, even if
It is the larger fish eye lens of the angle of visual field, also typically in 180 degree or so, the maximum a product of present coverage is the angle of visual field
235 degree of super flakes；And the full shot designed by the present invention, there is no the single refraction thang-kng imaging mode of application fish eye lens,
But utilizing the imaging mode of catadioptric splicing so that the angle of visual field reaches 270 degree in vertical direction of principal axis, and horizontal direction reaches 360 degree, and
Peripheral field distortion is much smaller compared with fish eye lens；Compared with general full shot, then with the huge advantage without central blind area,
And the vertical direction of principal axis angle of visual field of common full shot is only tens degree, therefore the camera lens is truly realized full filed ultra-wide angle,
And compact, compact conformation, it is easy to debug.
The content of the invention
It is an object of the invention to provide a kind of blind-area-free panoramic camera lens, it can reach non-blind area and the bigger effect of the angle of visual field
Really.
Realize that technical scheme is as follows：
A kind of blind-area-free panoramic camera lens, the camera lens is main to be made up of catadioptric mirror, central microscope group and relaying microscope group；Wherein,
There is a through hole at catadioptric mirror center, and central microscope group is located in the through hole, and catadioptric mirror, central microscope group and relaying microscope group three
Person is coaxial；
The central microscope group, for the light of central vision to be transmitted and converges to the relaying microscope group；
The refringent/reflection lens, for by the light line reflection of peripheral field and converge to it is described relaying saturating group；
The relaying microscope group, for incident convergence of rays to be imaged on into image planes.
Further, the rear surface of refringent/reflection lens of the present invention is the aspherical of splicing.
Preferably, the basic material of refringent/reflection lens of the present invention is optical plastic, and preceding surface is coated with reflectance coating.
Further, refringent/reflection lens thickness of the present invention is no more than 10mm, and bore is not more than 60mm.
Further, central microscope group of the present invention is constituted using a piece of negative lens and one group of cemented doublet.
Further, relaying microscope group of the present invention is made up of 6 lens, along optical axis direction, is followed successively by first piece for just
Lens, second is negative lens, and the 3rd is positive lens, and the 4th is cemented doublet, and the 5th is positive lens, and the 6th is
Negative lens.
Beneficial effect
First, be installed on central microscope group in the through hole at catadioptric mirror center by the present invention, and both collectively form whole camera lens
End of finding a view, the light of central vision passes through that central microscope group is incident, and the light of peripheral field is passed through by refringent/reflection lens incidence
The cooperation of central microscope group and catadioptric mirror, the camera lens can obtain the vertical direction of principal axis angle of visual field not less than 270 degree, 360 degree of level sides
To the picture of the angle of visual field.
Second, the basic material of refringent/reflection lens of the present invention selects optical plastic, and preceding surface is coated with reflectance coating, can save
Cost is easy to processing.
3rd, present invention center microscope group is made up of two panels lens, and its cost-effective and compact reduces the weight of system
Amount.
4th, combination and cemented doublet of the present invention relaying microscope group using positive negative lens can reduce the color of the camera lens
The aberrations such as difference, the curvature of field.
5th, camera lens of the present invention causes that peripheral field distorts and is effectively controlled using splicing is aspherical, far smaller than fish
The peripheral field distortion of glasses head.
6th, camera lens of the present invention can cause that target location resolution of lens is optimal using splicing is aspherical, improve
Camera lens obtains the ability of effective information.
Brief description of the drawings
Fig. 1 is the overall structure X-Y scheme of the blind-area-free panoramic camera lens of the embodiment of the present invention.
Fig. 2 is the end schematic diagram of finding a view of the blind-area-free panoramic camera lens of the embodiment of the present invention.
Fig. 3 is the relay lens structural representation of the blind-area-free panoramic camera lens of the embodiment of the present invention.
Fig. 4 is the MTF figures of the blind-area-free panoramic camera lens of the embodiment of the present invention, and wherein Fig. 4 (a) is peripheral field light
MTF schemes, and Fig. 4 (b) is the MTF figures of central vision light.
Fig. 5 is the picture point figure of the blind-area-free panoramic camera lens of the embodiment of the present invention, and wherein Fig. 5 (a) is peripheral field light
Picture point figure, Fig. 5 (b) is the picture point figure of central vision light.
Wherein, 1- refringent/reflection lens, the negative lens in the microscope group of 2- centers, the cemented doublet in the microscope group of 3- centers, in 4-9
After 6 lens of microscope group, 10- image planes.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, and the present invention will be described in detail.
As shown in figure 1, the structural representation of the blind-area-free panoramic camera lens that the embodiment of the present invention is provided.The camera lens includes folding
Speculum Z1, center microscope group Z2 and the parts of relaying microscope group Z3 tri-；Wherein, there are a through hole, central microscope group Z2 in catadioptric mirror Z1 centers
In the through hole, and catadioptric mirror Z1, center microscope group Z2 and relaying microscope group Z3 three are coaxial；
Central microscope group Z2, for the light of central vision to be transmitted and converges to the relaying microscope group Z3；Refringent/reflection lens
Z1, for by the light line reflection of peripheral field and converge to it is described relaying thoroughly group Z3；Relaying microscope group Z3, for by incident light
Convergence is imaged in image planes.
As shown in Fig. 2 the light injected in central vision, picture is reached after passing sequentially through central microscope group Z2 and relaying microscope group Z3
On face, and the light that peripheral field in addition is injected, then can be reached same by refringent/reflection lens Z1 and relaying microscope group Z3
The image planes imaging of position, the vertical direction of principal axis angle of visual field not less than 270 degree, 360 degree of horizontal directions can be obtained eventually through the camera lens
The picture of the angle of visual field.
As shown in figure 3, the rear surface of the catadioptric mirror Z1 at end of finding a view of the invention is that a splicing is aspherical, apart from optical axis
13.5mm or so places are tie point, and continuous at tie point, it is ensured that machinability.The splicing non-spherical surface that two parts are used
Descriptive equation is identical, is
In formula, r is that z is rise of this along optical axis direction, and c is the surface a little to the distance of optical axis on optical surface
Curvature, k be the surface second curved surface constant, A, B, C, D, E, F, G be respectively 4 times, 6 times, 8 times, 10 times, 12 times, 16 times and
18 asphericity coefficients.
The effect of refringent/reflection lens of the present invention is primarily used to turn back the light at big visual field to mobile lens, in order to subtract
Light system weight, the lens thickness is no more than 10mm, and bore is not more than 60mm, and in order to reduce being processed into for aspherical lens
This, can be using such as polymethyl methacrylate (PMMA) plastic material.
Central microscope group Z2 as shown in Figure 3, the Main Function of the microscope group is for central visual field light is turned back to mobile phone
Camera lens, and cannot be blocked with the transmission generation of the light at big visual field, therefore, the bore of the lens group needs strict limitation, and
Structure should not be excessively complicated, needs to consider the correction of various aberrations certainly.Preferably, central microscope group includes two groups of lens, the
One group of lens is negative lens, and second group of lens is cemented doublet.
As shown in Fig. 2 being intended to be turned back to picture by relaying microscope group by central microscope group and the incident light of catadioptric eyeglass
Face, relaying microscope group is mainly used in reducing the incident bore of big field rays, and plays a part of to slow down the angle of visual field, is easy to so that big
Image in field range can be imaged in same receiving plane.The present invention completes this function using six-element lens, and
Strict control bore and eyeglass volume, it is ensured that the light weight and terseness of system.Preferably, along optical axis direction, first piece lens
It is positive lens, second lens is negative lens, and the 3rd lens are positive lens, and the 4th lens are cemented doublet, the 5th
Lens are positive lens, and six-element lens is negative lens.Combination and cemented doublet of the present invention relaying microscope group using positive negative lens,
The aberrations such as aberration, the curvature of field of the camera lens can be reduced.
Camera lens of the present invention can be received when image planes are imaged with a common CCD or COMS etc., may also pass through repacking
After be installed on other receiving devices.
Full shot designed by the present invention, does not have the single refraction thang-kng imaging mode of application fish eye lens, but utilize
The imaging mode of catadioptric splicing so that the angle of visual field reaches 270 degree in vertical direction of principal axis, and horizontal direction reaches 360 degree, and peripheral field
Distortion is much smaller compared with fish eye lens；Compared with general full shot, then with the huge advantage without central blind area, and commonly
The vertical direction of principal axis angle of visual field of full shot is only tens degree, therefore the camera lens is truly realized full filed ultra-wide angle, and small volume
Ingeniously, compact conformation, is easy to debug.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (5)
1. a kind of blind-area-free panoramic camera lens, it is characterised in that the camera lens is main by catadioptric mirror, central microscope group and relaying microscope group structure
Into；Wherein, there is a through hole at catadioptric mirror center, and central microscope group is located in the through hole, and catadioptric mirror, central microscope group and relaying
Microscope group three is coaxial；
The central microscope group, for the light of central vision to be transmitted and converges to the relaying microscope group；
The catadioptric mirror, for by the light line reflection of peripheral field and converging to the relaying microscope group；
The relaying microscope group, for incident convergence of rays to be imaged on into image planes, relaying microscope group is made up of 6 lens, along light
Direction of principal axis, first piece is positive lens, and second is negative lens, and the 3rd is positive lens, and the 4th is cemented doublet, the 5th
It is positive lens, the 6th is negative lens.
2. blind-area-free panoramic camera lens according to claim 1, it is characterised in that the rear surface of the catadioptric mirror is splicing
It is aspherical.
3. blind-area-free panoramic camera lens according to claim 1, it is characterised in that the basic material of the catadioptric mirror is optics
Plastics, and preceding surface is coated with reflectance coating.
4. blind-area-free panoramic camera lens according to claim 1, it is characterised in that the catadioptric mirror thickness is no more than 10mm,
Bore is not more than 60mm.
5. blind-area-free panoramic camera lens according to claim 1, it is characterised in that the central microscope group using a piece of negative lens and
One group of cemented doublet is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028272.7A CN104570288B (en) | 2015-01-20 | 2015-01-20 | A kind of blind-area-free panoramic camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028272.7A CN104570288B (en) | 2015-01-20 | 2015-01-20 | A kind of blind-area-free panoramic camera lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104570288A CN104570288A (en) | 2015-04-29 |
| CN104570288B true CN104570288B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510028272.7A Active CN104570288B (en) | 2015-01-20 | 2015-01-20 | A kind of blind-area-free panoramic camera lens |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6993251B2 (en) * | 2018-02-01 | 2022-01-13 | リコーインダストリアルソリューションズ株式会社 | Projection optical system and image display device |
| CN108802982A (en) * | 2018-06-16 | 2018-11-13 | 桂林电子科技大学 | A kind of optical imaging system |
| CN108681038B (en) * | 2018-07-28 | 2019-11-12 | 华中科技大学 | A kind of double vision field optical system without coke |
| JP7124521B2 (en) * | 2018-07-30 | 2022-08-24 | セイコーエプソン株式会社 | Projection optical system and projection image display device |
| CN112363308B (en) * | 2020-12-15 | 2022-07-19 | 长春理工大学 | Compact two-channel catadioptric panoramic imaging optical system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1117897B (en) * | 1959-06-03 | 1961-11-23 | Ernst Stechemesser | Holder of a spherical or conical mirror that can be placed in front of an objective for taking or projecting full panorama images |
| US6493032B1 (en) * | 1996-06-24 | 2002-12-10 | Be Here Corporation | Imaging arrangement which allows for capturing an image of a view at different resolutions |
| US6597520B2 (en) * | 1999-01-13 | 2003-07-22 | Be Here Corporation | Panoramic imaging arrangement |
| JP2002341409A (en) * | 2001-05-21 | 2002-11-27 | Accowle Co Ltd | Omniazimuth photographing device |
| IL152628A0 (en) * | 2002-11-04 | 2004-02-08 | Odf Optronics Ltd | Omni-directional imaging assembly |
| DE10334185A1 (en) * | 2003-07-26 | 2005-02-24 | BODENSEEWERK GERäTETECHNIK GMBH | camera system |
| JP2006259659A (en) * | 2005-02-15 | 2006-09-28 | Olympus Corp | Optical system |
| CN101004538B (en) * | 2007-01-18 | 2010-11-10 | 汤一平 | Omnibearing vision sensor with no dead angle |
| RU2014130238A (en) * | 2012-01-03 | 2016-02-27 | Пан-Вижн С.Р.Л. | LENS LENS WITH AN EXTENDED HEMISPHERIC VISION FIELD |
| CN105158880B (en) * | 2014-05-23 | 2017-12-01 | 北京理工大学 | A kind of catadioptric spliced wide-angle lens |
-
2015
- 2015-01-20 CN CN201510028272.7A patent/CN104570288B/en active Active
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| CN104570288A (en) | 2015-04-29 |
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