CN104297924B - A kind of wide range, optical system with wide field of view - Google Patents
A kind of wide range, optical system with wide field of view Download PDFInfo
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- CN104297924B CN104297924B CN201410464981.5A CN201410464981A CN104297924B CN 104297924 B CN104297924 B CN 104297924B CN 201410464981 A CN201410464981 A CN 201410464981A CN 104297924 B CN104297924 B CN 104297924B
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- 230000003287 optical Effects 0.000 title claims abstract description 45
- 230000004075 alteration Effects 0.000 claims abstract description 19
- 230000000007 visual effect Effects 0.000 claims abstract description 12
- 210000000695 Crystalline Lens Anatomy 0.000 claims description 145
- 230000005499 meniscus Effects 0.000 claims description 12
- 101710031899 moon Proteins 0.000 claims description 3
- 241000219739 Lens Species 0.000 claims description 2
- 239000000571 coke Substances 0.000 claims 3
- 238000003384 imaging method Methods 0.000 abstract description 8
- 230000003321 amplification Effects 0.000 description 7
- 238000003199 nucleic acid amplification method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000009738 saturating Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001809 detectable Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The present invention open a kind of wide range, optical system with wide field of view, include to imaging surface successively from object side: be placed on first battery of lens (1) of object side；It is placed as than the first battery of lens (1) closer to second battery of lens (2) of image planes；And be arranged to than the first battery of lens (1) and the second battery of lens (2) all near the Amici prism (3) of image planes.The invention provides a kind of wide range, optical system with wide field of view, solve the problems such as satellite optical load optical system (wide range, wide visual field) the aberration correction difficulty such as the curvature of field, aberration is relatively big, processing cost is high.
Description
Technical field
The present invention relates to optical technical field, in particular, relate to the optical system of a kind of wide range, wide visual field.
Background technology
According to the demand of satellite task, wide cut (wide visual field), wide spectrum, high-resolution optical system have become major trend.
Along with the increase of the angle of visual field, amplification is no longer constant, and distortion value increases the most therewith, although do not affect the definition of imaging, but
Make, as distortion raw to produce, to reduce the almost T-stable of imaging；Wide operating spectrum band can obtain the more characteristic information of target, but because of
The light of different frequency is different in the refractive index of same medium, brings serious aberration to optical system；The detectable target of high-resolution
The most small details, provides great advantage and guarantee for the identification of target, the planning etc. of task, certain at operating spectrum band
In the case of, improve resolution need increase optical system relative aperture, thus result in each aberration of optical system more serious,
The phenomenon that correction is difficult.
Three above index proposes multiple, harsh restrictive condition to optical system so that optical system cost is high, difficulty is big,
Design complexity.Therefore, it is necessary to provide a kind of compact conformation, design the imaging len of simple wide range, wide visual field.
Summary of the invention
For technical problem present in above-mentioned prior art, the present invention provides a kind of wide range, optical system with wide field of view, solves
Satellite optical load optical system (wide range, wide visual field) the aberration correction difficulty such as the curvature of field, aberration compared with big, processing cost is high
Problem.
In order to reach foregoing invention purpose, the present invention solves that its technical problem be the technical scheme is that
A kind of wide range, optical system with wide field of view, including: it is placed on the first battery of lens of object side, is placed on than the first battery of lens
Closer to the second battery of lens of image planes, and it is placed on than the second battery of lens closer to the Amici prism of image planes.
Described first battery of lens includes multiple lens composition totally with negative enlargement ratio, and described second battery of lens includes totally having
It is made up of multiple lens of positive enlargement ratio.
Described first battery of lens is included the first lens, cemented doublet, the second lens successively by object side to image planes side, described
One lens are the meniscuss with negative magnification, and it has convex surface at object side, has concave surface in image planes side；Described double glued
Lens are the meniscuss with positive amplification ratio, and it has concave surface at object side, has convex surface in image planes side；Second lens are tools
Having negative magnification meniscus, it has convex surface at object side, has concave surface in image planes side.
The refractive index of the two panels lens in described cemented doublet uses height design straggly.
Described cemented doublet uses height design straggly with the Abbe number of described first lens and the second lens.
Described second battery of lens includes the 3rd lens, the 4th lens, the 5th lens, the 6th lens from object side successively to image planes side
And the 7th lens, described 3rd lens, the 4th lens, the 6th lens are the biconvex lens with positive amplification ratio, described 5th saturating
Mirror is the biconcave lens with negative magnification, and described 7th lens are the meniscuss with positive amplification ratio, and it has at object side
Convex surface, has concave surface in image planes side, between described 4th lens and the 5th Lens and use little between the 5th lens and the 6th lens
Gap unpack format, is used for improving senior aberration, and gap is less than 1mm；Described 4th lens, the 5th lens and the 6th lens are adopted
By Ke Ke three-chip type structure, it is effectively improved the curvature of field aberration that wide visual field brings.
It is provided with diaphragm at picture frame before the object side of described 3rd lens, is used for the vignetting being reduced or eliminated in optical system.
In described first battery of lens and the second battery of lens, all of lens all use spherical lens.
Lenses in described first battery of lens uses bent moon thick lens, is used for improving the curvature of field aberration that wide visual field brings.
Described Amici prism utilizes semi-transparent semi-reflecting or ratio adjustable transflection film light path to be divided into two.
Technical solution of the present invention, compact conformation, design are simply, it is possible to realize the imaging effect of wide range, wide visual field.
Accompanying drawing explanation
The detailed description with reference to the following drawings, non-limiting example made by reading, the further feature of the present invention, mesh
And advantage will become more apparent upon:
Fig. 1 is the cross sectional representation of optical system provided by the present invention；
Fig. 2 is the imaging optical path schematic diagram of optical system provided by the present invention；
Fig. 3 is aberration curve (curvature of field) schematic diagram of optical system provided by the present invention；
Fig. 4 is aberration curve (distortion) schematic diagram of optical system provided by the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in those skilled in the art and enter
One step understands the present invention, but limits the present invention the most in any form.It should be pointed out that, those of ordinary skill in the art is come
Say, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into the protection of the present invention
Scope.
As it is shown in figure 1, the wide range of the present invention, optical system with wide field of view include: be placed on the first battery of lens 1 of object side；
It is placed on than the first battery of lens 1 closer to the second battery of lens 2 of image planes；And it is saturating to be placed on the first battery of lens 1 and second
Mirror group 2 is all near the Amici prism 3 of image planes.
First battery of lens 1 includes multiple lens totally with negative enlargement ratio.Wherein, the first lens 4 are to have negative magnification
Meniscus, it has convex surface at object side, has concave surface in image planes side；Lens 5, lens 6 are gluing for cemented doublet,
Being the meniscus with positive amplification ratio, it has concave surface at object side, has convex surface in image planes side；3rd lens 7 are to have
Negative magnification meniscus, it has convex surface at object side, has concave surface in image planes side.Above three parts, including the first lens
4, cemented doublet the 5,6, second lens 7 all use bent moon thick lens, are used for eliminating the aberrations such as the curvature of field that wide visual field brings.
Refractive index employing the height design straggly, such as lens 5 refractive index of the two panels lens in cemented doublet 5,6 are more than 1.9, thoroughly
Mirror 6 refractive index is less than 1.7；Cemented doublet 5,6 uses height design straggly compared with the first lens 4 and the second lens 7 Abbe number,
Such as cemented doublet 5,6 Abbe number is less than 40, and the first lens 4 and the second lens 7 Abbe number are more than 60.First battery of lens
All lens in 1 all use spherical lens.
Second battery of lens 2 includes multiple lens totally with positive enlargement ratio.Wherein, the 3rd lens the 9, the 4th lens 10,
6th lens 12 are the biconvex lens with positive amplification ratio.5th lens 11 are the biconcave lenss with negative magnification.7th is saturating
Mirror 13 is the meniscus with positive amplification ratio, and it has convex surface at object side, has concave surface in image planes side.Diaphragm 8 is arranged
At the front picture frame of the 3rd lens 9, it is used for the vignetting being reduced or eliminated in system.Between the 4th lens 10 and the 5th lens 11 and
Use small-gap suture unpack format to replace glued form between the 5th lens 11 and the 6th lens 12, be used for improving senior aberration, gap
Less than 1mm.4th lens the 10, the 5th lens 11 and the 6th lens 12 use Ke Ke three-chip type structure, effectively improve width and regard
The curvature of field aberration that field is brought.All lens in second battery of lens 2 all use spherical lens.
Amici prism 3 utilizes semi-transparent semi-reflecting or ratio adjustable transflection film light path to be divided into two, and means of different can be used target
Carry out capturing, processing.
Table 1 is given wide range, optical system with wide field of view design data
Table 1
| Face | The type in face | Radius of curvature | Distance between face | Refractive index | Abbe number |
| S1 | Sphere | 99.506 | 4.644 | 1.65 | 55.9 |
| S2 | Sphere | 19.420 | 14.219 | ||
| S3 | Sphere | -72.792 | 7.430 | 1.91 | 32.4 |
| S4 | Sphere | -17.200 | 4.644 | 1.62 | 31.0 |
| S5 | Sphere | -60.290 | 4.644 | ||
| S6 | Sphere | -20.294 | 7.430 | 1.62 | 63.5 |
| S7 | Sphere | -28.068 | 46.439 | ||
| S8 | Sphere | 246.219 | 4.161 | 1.59 | 68.4 |
| S9 | Sphere | -52.719 | 1.041 | ||
| S10 | Sphere | 76.085 | 4.644 | 1.59 | 68.4 |
| Face | The type in face | Radius of curvature | Distance between face | Refractive index | Abbe number |
| S11 | Sphere | -34.242 | 0.929 | ||
| S12 | Sphere | -31.631 | 4.161 | 1.70 | 36.3 |
| S13 | Sphere | 42.614 | 0.929 | ||
| S14 | Sphere | 38.293 | 4.161 | 1.59 | 68.4 |
| S15 | Sphere | -177.176 | 5.000 | ||
| S16 | Sphere | 55.985 | 2.518 | 1.59 | 68.4 |
| S17 | Sphere | 325.495 | 1.858 | ||
| S18 | Plane | Infinity | 14 | 1.65 | 55.9 |
| S19 | Plane | Infinity |
In table 1, face S1 is the face of the object side of the first lens 4, and face S2 is the face of the image plane side of the first lens 4.Face S3
Being the face of the object side of cemented doublet 5,6, face S4 is the glued face of cemented doublet 5,6, and face S5 is double glued saturating
The face of the image plane side of mirror 5,6.Face S6 is the face of the object side of the second lens 7, and face S7 is the image plane of the second lens 7
The face of side.Face S8 is the face of the object side of the 3rd lens 9, and face S9 is the face of the image plane side of the 3rd lens 9.Diaphragm 8 sets
Put at the front picture frame of the 3rd lens 9.Face S10 is the face of the object side of the 4th lens 10, and face S11 is the 4th lens 10
The face of image plane side.Face S12 is the face of the object side of the 5th lens 11, and face S13 is the face of the image plane side of the 5th lens 11.
Face S14 is the face of the object side of the 6th lens 12, and face S15 is the face of the image plane side of the 6th lens 12.Face S16 is the 7th
The face of the object side of lens 13, face S17 is the face of the image plane side of the 7th lens 13.
Fig. 2 is the imaging optical path schematic diagram of optical system provided by the present invention.Optical system provided by the present invention is based on 9
Optical lens (surface is sphere) is converged to picture, utilizes block prism to carry out channel separation, can means many to target process point
Analysis.
Fig. 3 is aberration curve (curvature of field) schematic diagram of optical system provided by the present invention.Optical system provided by the present invention
The curvature of field of central vision is less than 0.04mm, and the curvature of field of peripheral field is less than 0.09mm, all has relatively for general optical system
The big depth of field, the curvature of field that optical system provided by the present invention produces is negligible.
Fig. 4 is aberration curve (distortion) schematic diagram of optical system provided by the present invention.Optical system provided by the present invention
The maximum distortion produced after target carries out imaging is less than 0.2%, the most negligible.
It is above the explanation to the specific embodiment of the invention, but is not used to limit the present invention.Any those skilled in the art are not
Departing from the spirit and scope of the present invention, scheme proposed by the invention is made possible by the content that may be by the disclosure above
Variation and amendment, therefore, every technology contents without departing from the present invention, the technical spirit of the foundation present invention is to above example institute
Any simple modification, equivalent variations and the modification made, belongs to protection scope of the present invention.
Claims (8)
1. a wide range, optical system with wide field of view, it is characterised in that including: be placed on first battery of lens (1) of object side, put
Put than the first battery of lens (1) closer to second battery of lens (2) of image planes, and be placed on than the second battery of lens (2) more
Near the Amici prism (3) of image planes, described first battery of lens (1) includes multiple lens composition totally with negative power,
Described second battery of lens (2) includes multiple lens composition totally with positive light coke, and described first battery of lens (1) is by object
Side includes the first lens (4), cemented doublet (5,6), the second lens (7), described first lens (4) successively to image planes side
Being the meniscus with negative power, it has convex surface at object side, has concave surface in image planes side；Described cemented doublet (5,
6) being the meniscus with positive light coke, it has concave surface at object side, has convex surface in image planes side；Second lens (7)
Being the meniscus with negative power, it has concave surface at object side, has convex surface in image planes side.
Wide range the most according to claim 1, optical system with wide field of view, it is characterised in that described cemented doublet (5,6)
In two panels lens refractive index use height design straggly.
Wide range the most according to claim 1, optical system with wide field of view, it is characterised in that described cemented doublet (5,6)
Height design straggly is used with the Abbe number of described first lens (4) and the second lens (7).
Wide range the most according to claim 1, optical system with wide field of view, it is characterised in that described second battery of lens (2) is from thing
Side includes the 3rd lens (9), the 4th lens (10), the 5th lens (11), the 6th lens (12) successively to image planes side
And the 7th lens (13), described 3rd lens (9), the 4th lens (10), the 6th lens (12) they are that to have positive light burnt
The biconvex lens of degree, described 5th lens (11) are the biconcave lenss with negative power, and described 7th lens (13) are tools
Having the meniscus of positive light coke, it has convex surface at object side, has a concave surface in image planes side, described 4th lens (10) and
Use small-gap suture unpack format between the 5th Lens (11) and between the 5th lens (11) and the 6th lens (12), be used for changing
Kind senior aberration, gap is less than 1mm；Described 4th lens (10), the 5th lens (11) and the 6th lens (12) use
Ke Ke three-chip type structure, is effectively improved the curvature of field aberration that wide visual field brings.
Wide range the most according to claim 4, optical system with wide field of view, it is characterised in that the object of described 3rd lens (9)
It is provided with diaphragm (8) before side at picture frame, is used for the vignetting being reduced or eliminated in optical system.
Wide range the most according to claim 1, optical system with wide field of view, it is characterised in that described first battery of lens (1) and
In two battery of lens (2), all of lens all use spherical lens.
Wide range the most according to claim 6, optical system with wide field of view, it is characterised in that in described first battery of lens (1)
Lenses uses bent moon thick lens, is used for improving the curvature of field aberration that wide visual field brings.
Wide range the most according to claim 1, optical system with wide field of view, it is characterised in that described Amici prism (3) utilizes half
Light path is divided into two by the most anti-or ratio adjustable transflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410464981.5A CN104297924B (en) | 2014-09-12 | A kind of wide range, optical system with wide field of view |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410464981.5A CN104297924B (en) | 2014-09-12 | A kind of wide range, optical system with wide field of view |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104297924A CN104297924A (en) | 2015-01-21 |
| CN104297924B true CN104297924B (en) | 2017-01-04 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596433A (en) * | 1993-04-27 | 1997-01-21 | Olympus Optical Co., Ltd. | Head-mounted image display apparatus having a prism with an aspherical surface |
| US6091545A (en) * | 1997-07-22 | 2000-07-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Real image finder optical system having half mirror and information display surface within eyepiece optical system |
| CN101726854A (en) * | 2008-10-14 | 2010-06-09 | 佳能株式会社 | Image processing apparatus, image processing method and image processing system |
| CN103518153A (en) * | 2011-05-09 | 2014-01-15 | 富士胶片株式会社 | Variable magnification optical system and image capture device |
| CN203480115U (en) * | 2013-09-16 | 2014-03-12 | 江苏宇迪光学股份有限公司 | Dual-resolution ratio optical imaging lens |
| CN203502657U (en) * | 2013-09-30 | 2014-03-26 | 中国科学院西安光学精密机械研究所 | Wide-view-field image-telecentric optical system of three-linear-array stereo aerial survey camera |
| CN103925998A (en) * | 2014-04-18 | 2014-07-16 | 中国科学院光电技术研究所 | Solar self-adaptive optical grating spectrum imaging device with spectrum broadening capable of being inhibited |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596433A (en) * | 1993-04-27 | 1997-01-21 | Olympus Optical Co., Ltd. | Head-mounted image display apparatus having a prism with an aspherical surface |
| US6091545A (en) * | 1997-07-22 | 2000-07-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Real image finder optical system having half mirror and information display surface within eyepiece optical system |
| CN101726854A (en) * | 2008-10-14 | 2010-06-09 | 佳能株式会社 | Image processing apparatus, image processing method and image processing system |
| CN103518153A (en) * | 2011-05-09 | 2014-01-15 | 富士胶片株式会社 | Variable magnification optical system and image capture device |
| CN203480115U (en) * | 2013-09-16 | 2014-03-12 | 江苏宇迪光学股份有限公司 | Dual-resolution ratio optical imaging lens |
| CN203502657U (en) * | 2013-09-30 | 2014-03-26 | 中国科学院西安光学精密机械研究所 | Wide-view-field image-telecentric optical system of three-linear-array stereo aerial survey camera |
| CN103925998A (en) * | 2014-04-18 | 2014-07-16 | 中国科学院光电技术研究所 | Solar self-adaptive optical grating spectrum imaging device with spectrum broadening capable of being inhibited |
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