CN110007439A - A kind of number aerial mapping full-color camera telecentric optical system - Google Patents
A kind of number aerial mapping full-color camera telecentric optical system Download PDFInfo
- Publication number
- CN110007439A CN110007439A CN201910354745.0A CN201910354745A CN110007439A CN 110007439 A CN110007439 A CN 110007439A CN 201910354745 A CN201910354745 A CN 201910354745A CN 110007439 A CN110007439 A CN 110007439A
- Authority
- CN
- China
- Prior art keywords
- lens
- optical system
- focal power
- lens group
- color camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 104
- 238000013507 mapping Methods 0.000 title claims abstract description 32
- 230000000007 visual effect Effects 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 29
- 239000005308 flint glass Substances 0.000 claims description 15
- 230000005499 meniscus Effects 0.000 claims description 8
- 239000005331 crown glasses (windows) Substances 0.000 claims description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract description 12
- 239000000571 coke Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000004075 alteration Effects 0.000 description 17
- 238000005286 illumination Methods 0.000 description 17
- 238000013461 design Methods 0.000 description 13
- 238000009826 distribution Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 238000005457 optimization Methods 0.000 description 9
- 238000012937 correction Methods 0.000 description 8
- 201000009310 astigmatism Diseases 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- VMXUWOKSQNHOCA-UKTHLTGXSA-N ranitidine Chemical compound [O-][N+](=O)\C=C(/NC)NCCSCC1=CC=C(CN(C)C)O1 VMXUWOKSQNHOCA-UKTHLTGXSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/02—Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
-
- 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
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/04—Reversed telephoto objectives
-
- 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
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/22—Telecentric objectives or lens systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of digital aerial mapping full-color camera telecentric optical systems, comprising: front lens group, middle lens group and the rear lens group set gradually from left to right along light incident direction；The front lens group includes the first lens set gradually, the second lens, the third lens and the 4th lens；The middle lens group includes the 5th lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens set gradually；The rear lens include the 11st lens；The present invention uses first lens for the anti-long distance of positive light coke and the joint optical path pattern of image space telecentricity, and imaging viewing field reaches 70 °, and full filed is averaged the 55lp/mm of MTF >=0.65, and full filed distortion≤0.02%, illuminance uniformity reaches 75.8% or more.Optical system structure is compact, has the advantages that illuminance uniformity is good, image quality is good and small-sized, while the processing and manufacturing cost of optical system is greatly lowered.
Description
Technical field
The present invention relates to image optics technical fields, more specifically to a kind of digital aerial mapping full-color camera telecentricity
Optical system.
Background technique
Aerial mapping camera is equipped on airborne platform, and atural object can be imaged at a distance, provides high-resolution, low
The remote sensing images information of distortion has a wide range of applications in agriculture and forestry, the emergency fields such as mitigation and urban planning and construction.Especially
In recent years, with the proposition of the concepts such as " smart city ", " digital city " and digitize rapid urban promotion under, boat
Empty mapping camera is capable of providing the high definition mapping image of large area array, provides position accurately high-resolution image information, is meeting an urgent need
The various aspects such as reaction, city security protection, city function and space layout, water pipeline construction can play a significant role.
Traditional aerial mapping camera realizes the acquisition of wide area remote sensing images using film.With large area array CCD or
The technology development of CMOS sensor and constantly maturation, the digital aviation mapping camera based on CCD or cmos device is with higher
The advantages such as video image are reused and be capable of providing to resolution ratio, gradually replaces the aerial mapping camera of film type.Due to
The pixel dimension of CCD or cmos device is smaller, and imaging viewing field is bigger, and the requirement to camera optical system is higher.
According to practical application request, digital aviation mapping camera optical system is broadly divided into two classes, one kind be to ground into
The color camera optical system of row spectral information acquisition, is imaged based on colored CCD or cmos device, obtains the spectrum of atural object
Information data；Has the characteristics that middle parfocal, compared with object lens of large relative aperture, high-resolution and wide-angle image visual field；Another kind of is energy
Enough full-color camera optical systems that the acquisition of high-resolution geological information is carried out to ground can carry out precise measure to atural object.It should
Camera is based on panchromatic high performance CCD or cmos device is imaged, and optical system has more long-focus, compared with object lens of large relative aperture
And higher resolution, and have the features such as wide-angle image visual field.Digital aerial mapping color camera and digital aerial mapping are complete
Form and aspect machine is combined, and realizes the fusion of image information, can obtain high-resolution Color Remote Sensing Image information.
Optical system is the core in digital aerial survey full-color camera, need to realize large visual field high resolution and
The imaging of low distortion.Due to being applied to aviation flight platform, also there is harsh requirement to its small light.High performance number
The design of aerial mapping camera optical system and application are the primary study objects of development aerial mapping camera technique.It is led
Wanting technology trends is big view field imaging, high-resolution, low distortion and camera small light.Due to aerial mapping camera light
System needs to realize big view field imaging, and the general optical system structure pattern using symmetric form takes into account high image quality and low distortion
It realizes.In this kind of design, since the Illumination Distribution of image planes is close directly proportional to field angle cosine biquadratic, illuminance of image plane is with view
Field increases and sharply declines, and causes the illuminance uniformity of entire image planes poor.Image obtained is when deviateing field of view center position
It is dimmed rapidly, it can not be than more objective reflection atural object intrinsic brilliance distribution situation.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of digital aerial mapping full-color camera telecentric optics system
System is substantially improved image illumination uniformity, obtains under the premise of guaranteeing that large visual field high resolution, low distortion imaging performance require
Obtain the cartographic feature of better effect.
The solution that the present invention solves its technical problem is: a kind of number aerial mapping full-color camera telecentric optics system
System, comprising: front lens group, middle lens group and the rear lens group set gradually from left to right along light incident direction；
The front lens group includes the first lens set gradually, the second lens, the third lens and the 4th lens；In described
Lens group includes that the 5th lens set gradually, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth are saturating
Mirror；The rear lens include the 11st lens；
First lens and the 6th lens are the meniscus shaped lens that focal power is positive, and second lens, third are saturating
Mirror, the 4th lens and the tenth lens are the meniscus shaped lens that focal power is negative, and the 5th lens, the 8th lens, the 9th are thoroughly
Mirror and the 11st lens are the biconvex lens that focal power is positive, and the 7th lens are the biconcave lens that focal power is negative.
As a further improvement of the above technical scheme, first lens and the second lens group are at cemented doublet.
As a further improvement of the above technical scheme, the 6th lens, the 7th lens and the 8th lens form three glue
Close lens.
As a further improvement of the above technical scheme, the front lens group falls the angular magnification of visual field chief ray outside axis
Number is 1/ γ, wherein 1/ γ meets:
1.25≤1/γ≤1.45。
As a further improvement of the above technical scheme, the focal power of the front lens groupWith the light focus of optical system
DegreeRatio meet:
The focal power of the middle lens groupWith the focal power of optical systemRatio meet:
The focal power of the rear lens groupWith the focal power of optical systemRatio meet:
WhereinFor the focal power of front lens group,For the focal power of middle lens group,For the light focus of rear lens group
Degree,For the focal power of the optical system.
As a further improvement of the above technical scheme, the 5th lens and the 6th lens are thick lens.
As a further improvement of the above technical scheme, the 5th lens are the first optics close to the optical surface of diaphragm
Face, the 6th lens are the second optical surface close to the optical surface of diaphragm, and field of view edge light exists on the axis of the optical system
The height of first optical surface is h1, and field of view edge light is h1 in the height of the second optical surface on the axis of the optical system,
Middle h1 and h2 meets:
0.96≤|h1/h2|≤1.08。
As a further improvement of the above technical scheme, the outer visual field chief ray of the axis of the optical system is in the first optical surface
Height be hz1, the outer visual field chief ray of the axis of the optical system is hz2 in the height of the second optical surface, wherein hz1 and hz2
Meet:
1.5≤|hz1/hz2|≤2.0。
As a further improvement of the above technical scheme, the material of first lens, the third lens and the 4th lens is equal
Attach most importance to lanthanum flint glass, the material of second lens is dense flint glass, and the material of the 5th lens is dense crown, institute
The material for stating the 6th lens is lanthanum crown glass, and the material of the 7th lens is dense flint glass, the material of the 8th lens
For fluor crown, the material of the 9th lens is crown glass, and the material of the tenth lens is dense flint glass, the described 11st
The material of lens is dense flint glass.
As a further improvement of the above technical scheme, the diaphragm is aperture diaphragm.
The beneficial effects of the present invention are: the present invention uses first lens for the anti-long distance of positive light coke and image space telecentricity
Joint optical path pattern, imaging viewing field reach 70 °, and full filed is averaged the@55lp/mm of MTF >=0.65, full filed distortion≤0.02%,
Illuminance uniformity reaches 75.8% or more.Optical system structure is compact, and with illuminance uniformity, good, image quality is well and light
Small-sized advantage, while the processing and manufacturing cost of optical system is greatly lowered.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the composed structure schematic diagram of optical system of the present invention；
Fig. 2 is optical system of the present invention optical transfer function curve graph at 55lp/mm；
Fig. 3 is the distortion figure of optical system of the present invention；
Fig. 4 is the vertical axial aberration curve graph of optical system of the present invention；
Fig. 5 is the illumination curve figure of prior art optical system；
Fig. 6 is the illumination curve figure of optical system of the present invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu, complete description, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text
All connection relationships not singly refer to that component directly connects, and referring to can be according to specific implementation situation, by adding or reducing connection
Auxiliary, Lai Zucheng more preferably connection structure.Each technical characteristic in the invention, under the premise of not conflicting conflict
It can be with combination of interactions.
Embodiment 1, referring to Fig.1, a kind of number aerial mapping full-color camera telecentric optical system, comprising: along light incidence
Front lens group, middle lens group and the rear lens group that direction is set gradually from left to right；
The front lens group includes that the first lens 100 set gradually, the second lens 200, the third lens 300 and the 4th are saturating
Mirror 400；The middle lens group include the 5th lens 500 set gradually, diaphragm 130, the 6th lens 600, the 7th lens 700,
8th lens 800, the 9th lens 900 and the tenth lens 110；The rear lens include the 11st lens 120；
First lens 100 and the 6th lens 600 are the meniscus shaped lens that focal power is positive, second lens
200, the third lens 300, the 4th lens 400 and the tenth lens 110 are the meniscus shaped lens that focal power is negative, and the described 5th thoroughly
Mirror 500, the 8th lens 800, the 9th lens 900 and the 11st lens 120 are the biconvex lens that focal power is positive, and the described 7th
Lens 700 are the biconcave lens that focal power is negative.
As optimization, the diaphragm 130 is aperture diaphragm.
As optimization, first lens 100 and the second lens 200 form cemented doublet.
As optimization, the 6th lens 600, the 7th lens 700 and the 8th lens 800 form three balsaming lens.
As optimization, the 5th lens 500 and the 6th lens 600 are thick lens.
5th lens 500 are drum type biconvex positive light coke thick lens, and the 6th lens 600 are the positive light focus of falcate
Spend thick lens.
As optimization, in order to reduce the distortion senior aberration of front lens group, and take into account in reduction, rear lens group aberration correction
Pressure.The front lens group is 1/ γ to the angular magnification inverse of visual field chief ray outside axis, wherein 1/ γ meets:
1.25≤1/γ≤1.45。
As optimization, the focal power of the front lens groupWith the focal power of optical systemRatio meet:
The focal power of the middle lens groupWith the focal power of optical systemRatio meet:
The focal power of the rear lens groupWith the focal power of optical systemRatio meet:
WhereinFor the focal power of front lens group,For the focal power of middle lens group,For the light focus of rear lens group
Degree,For the focal power of the optical system.
As optimization, the 5th lens 500 are the first optical surface, the 6th lens close to the optical surface of diaphragm 130
600 close to the optical surface of diaphragm 130 be the second optical surface, and field of view edge light is in the first optical surface on the axis of the optical system
Height be h1, field of view edge light is h1 in the height of the second optical surface on the axis of the optical system, and wherein h1 and h2 is full
Foot:
0.96≤|h1/h2|≤1.08。
As optimization, the outer visual field chief ray of the axis of the optical system is hz1, the optics in the height of the first optical surface
The outer visual field chief ray of the axis of system is hz2 in the height of the second optical surface, and wherein hz1 and hz2 meets:
1.5≤|hz1/hz2|≤2.0。
Field of view edge light is the rim ray of nulling visual field on the axis, that is, outermost that of light beam of zero visual field
Root.
The outer visual field chief ray of the axis is the corresponding chief ray of visual field except nulling visual field.
Towards diaphragm 130, the 5th lens 500 are located at the side of diaphragm 130, the 5th lens 500 for the concave surface of 6th lens 600
The advanced positive astigmatism generated is dissipated with the advanced negative-appearing image that 600 concave surface of the 6th lens generates to be compensated.
In the embodiment of the present invention, imaging viewing field has reached 70 °, astigmatism relevant to visual field, the curvature of field, chromatic longitudiinal aberration and abnormal
Become etc. vertical axial aberration certainly will be difficult to control, especially distortion be aerial mapping camera optical system strict control aberration, with view
The cube of field is directly proportional.
Other than needing that the various senior aberrations under big visual field are reduced and controlled, the main bugbear of the design is to mention
Rise image illumination uniformity.According to optical design theory, in the symmetrical optical path of non-telecentricity, image illumination uniformity distribution with
The relationship of field angle are as follows:
Eima=E0*cos4U；
Wherein, Eima is illuminance of image plane value, and E0 is the illuminance of image plane of center visual field, and U is the outer visual field chief ray of axis and optical axis
Angle.
When half-field angle reaches 35 °, the illumination of peripheral field is only the 45.0% of central vision.
Illuminance uniformity is good, imaging performance more preferably picture quality to obtain, the present invention under the premise of big view field imaging,
Realize the design for being bordering on telecentric beam path.The relationship of image illumination uniformity and field angle is between visual field under nearly telecentric beam path
Between angle cosine first power and quadratic power:
Eima ∝ E0*cosU~E0*cos2U；
Wherein, Eima is illuminance of image plane value, and E0 is the illuminance of image plane of center visual field, and U is the outer visual field chief ray of axis and optical axis
Angle.
By realizing that image illumination uniformity can be substantially improved in telecentric beam path in image space design, it is equal to solve illumination under big visual field
The problem of even property difference, but optical system caused by telecentric beam path loses the correction difficulty for symmetrically exacerbating various visual field aberrations.
Based on considerations above, the preferable front lens group positive lens of symmetry is preceding in the anti-long distance light channel structure of the design selection
Light channel structure.Major measure includes:
1) front lens group and rear lens group are subjected to mistake symmetric design, front lens group uses focal power for " positive and negative negative "
Structural shape, control front lens group is unsuitable to the value of chief ray angle magnifying power too small, and it is advanced to reduce the distortion that front lens group generates
Aberration；
2) drum type biconvex positive light coke thick lens and falcate positive light coke thick lens has been respectively adopted in 130 two sides of diaphragm,
The height of the outer visual field chief ray of axis can be effectively reduced；It controls and is regarded on the axis on two optical surfaces of 130 two sides of diaphragm respectively
The height ratio of field edge light and the outer visual field chief ray of axis is conducive to correct advanced astigmatism and the outer visual field high-order spherical aberration of axis,
And optical system length can be shortened；
3) axial chromatic aberration and chromatic longitudiinal aberration that symmetrical variation generates are lost for correction, uses three balsaming lens, two gluings
The use in face effectively inhibits two kinds of color difference aberrations, and one of lens use thick meniscus lens pattern, are capable of providing
Compensate the effect of curvature of field aberration；
Since distortion correction difficulty is larger, and it is related to astigmatism, the curvature of field to distort, and optical system is rationally divided by focal power
The curvature of field with the system of reduction, and it is mutual by setting drum type biconvex thick lens and thick meniscus lens, the advanced astigmatism in 130 two sides of diaphragm
Mutually the methods of compensation inhibits astigmatic image error, has carried out preferable control to the distortion of optical system by above method.
The design parameter of digital aerial mapping color camera telecentric optical system of the invention are as follows:
Focal length 69.93mm；Relative aperture D/f is 1/5.6；Field angle is 70 °；Without vignetting；In 55lp/mm, full filed
Averagely pass letter > 0.65；Full filed relative distortion < 0.02%；(the first lens 100 of optical system arrive the overall length of optical system
11st lens 120) it is 256mm；Back work distance is from for 46.4mm.
As optimization, the material of first lens 100, the third lens 300 and the 4th lens 400 is heavy-lanthanide flint glass
Glass, the materials of second lens 200 are dense flint glass, and the material of the 5th lens 500 is dense crown, the described 6th
The material of lens 600 is lanthanum crown glass, and the material of the 7th lens 700 is dense flint glass, the material of the 8th lens 800
Matter is fluor crown, and the material of the 9th lens 900 is crown glass, and the material of the tenth lens 110 is dense flint glass, institute
The material for stating the 11st lens 120 is dense flint glass.
The present invention uses the first lens 100 for the anti-long distance of positive light coke and the joint optical path pattern of image space telecentricity, guarantees
High-resolution, the designing quality of low distortion under big view field imaging, and the illuminance uniformity of image planes is greatly improved, edge illumination
Uniformity is promoted from 45% to 75.8%, and promotion amplitude reaches 68.4% or more, can obtain the more uniform big picture of illumination
Image information is conducive to promote Remote Sensing Image Quality；
Image space realizes the design close to telecentric beam path, and telecentricity controls within 1.2 °, and illuminance of image plane is distributed by existing
Be lifted approximately directly proportional to field angle cosine biquadratic is directlyed proportional in field angle cosine first power under technology, and illuminance of image plane is equal
Even property is substantially improved.
Another benefit of nearly telecentric beam path design is that big target surface CCD or cmos detector and the integrated assembly of optical system are public
Difference is more loose, reduces manufacture difficulty.
The present invention is under the premise of realizing big imaging visual field, each power of lens of reasonable distribution, combination correction it is primary and
Senior aberration, meets that illuminance uniformity is good, image quality is good and small-sized using 11 conventional lenses glass materials, these
Glass material manufacturer keeps the high melting frequency and throughout the year in stock, significantly reduces the processing and manufacturing cost of optical system.
The present invention realizes the preferable control to distortion using full spherical lens, and the relative distortion of full filed is no more than
0.02%, reduce the difficulty of image processing correction residual image distortion.
Image quality of the present invention is excellent, and full filed averagely passes letter better than 0.65@55lp/mm.
The optical transfer function curve distribution of entire optical system in present example, optics are characterized with reference to Fig. 2, Fig. 2
System average optical transfer function values have been more than 0.65 in 55lp/mm, and image quality is good.
The distortion distribution curve of present example optical system is characterized with reference to Fig. 3, Fig. 3, distortion is no more than 0.02%, drop
The low geometry distrotion correction difficulty of subsequent digital image.
The vertical axial aberration curve that present example optical system is characterized with reference to Fig. 4, Fig. 4, influences hot spot symmetry distribution
The aberrations such as coma, astigmatism obtained preferable correction.
It with reference to Fig. 5 and Fig. 6, is compared by Fig. 5 and Fig. 6, the available present invention imitates the promotion of image illumination uniformity
Fruit, Fig. 5 are the Illumination Distribution figure of existing digital aviation mapping camera optical system, are only had in peripheral field relative illumination
45.0%；Fig. 6 is the Illumination Distribution figure of optical system of the present invention, reaches 75.8% in peripheral field relative illumination, promotes amplitude
Reach 68.4%.
Better embodiment of the invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of number aerial mapping full-color camera telecentric optical system characterized by comprising along light incident direction from a left side
Front lens group, middle lens group and the rear lens group set gradually to the right side；
The front lens group includes the first lens set gradually, the second lens, the third lens and the 4th lens；The middle lens
Group includes the 5th lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens set gradually；
The rear lens include the 11st lens；
First lens and the 6th lens are the meniscus shaped lens that focal power is positive, second lens, the third lens,
Four lens and the tenth lens are the meniscus shaped lens that focal power is negative, the 5th lens, the 8th lens, the 9th lens and
11 lens are the biconvex lens that focal power is positive, and the 7th lens are the biconcave lens that focal power is negative.
2. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
First lens and the second lens group are at cemented doublet.
3. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
6th lens, the 7th lens and the 8th lens form three balsaming lens.
4. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
Front lens group is 1/ γ to the angular magnification inverse of visual field chief ray outside axis, wherein 1/ γ meets:
1.25≤1/γ≤1.45。
5. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
The focal power of front lens groupWith the focal power of optical systemRatio meet:
The focal power of the middle lens groupWith the focal power of optical systemRatio meet:
The focal power of the rear lens groupWith the focal power of optical systemRatio meet:
WhereinFor the focal power of front lens group,For the focal power of middle lens group,For the focal power of rear lens group,
For the focal power of the optical system.
6. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
5th lens and the 6th lens are thick lens.
7. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
5th lens are the first optical surface close to the optical surface of diaphragm, and the 6th lens are the second optics close to the optical surface of diaphragm
Face, field of view edge light is h1 in the height of the first optical surface on the axis of the optical system, is regarded on the axis of the optical system
Field edge light is h1 in the height of the second optical surface, and wherein h1 and h2 meets:
0.96≤|h1/h2|≤1.08。
8. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 7, it is characterised in that: described
The outer visual field chief ray of the axis of optical system is hz1, the outer visual field chief ray of the axis of the optical system in the height of the first optical surface
It is hz2 in the height of the second optical surface, wherein hz1 and hz2 meets:
1.5≤|hz1/hz2|≤2.0。
9. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: described
The material of first lens, the third lens and the 4th lens is heavy-lanthanide flint glass, and the material of second lens is dense flint
Glass, the material of the 5th lens are dense crown, and the material of the 6th lens is lanthanum crown glass, the 7th lens
Material is dense flint glass, and the material of the 8th lens is fluor crown, and the material of the 9th lens is crown glass, the
The material of ten lens is dense flint glass, and the material of the 11st lens is dense flint glass.
10. a kind of digital aerial mapping full-color camera telecentric optical system according to claim 1, it is characterised in that: institute
Stating diaphragm is aperture diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354745.0A CN110007439B (en) | 2019-04-29 | 2019-04-29 | Telecentric optical system of digital aviation mapping panchromatic camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354745.0A CN110007439B (en) | 2019-04-29 | 2019-04-29 | Telecentric optical system of digital aviation mapping panchromatic camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110007439A true CN110007439A (en) | 2019-07-12 |
| CN110007439B CN110007439B (en) | 2023-11-28 |
Family
ID=67175024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354745.0A Active CN110007439B (en) | 2019-04-29 | 2019-04-29 | Telecentric optical system of digital aviation mapping panchromatic camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110007439B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441891A (en) * | 2019-08-02 | 2019-11-12 | 佛山科学技术学院 | A kind of compact ultra-wide angle FISH EYE LENS OPTICS system |
| CN110456478A (en) * | 2019-08-02 | 2019-11-15 | 佛山科学技术学院 | 3mm focal length ultra-wide angle FISH EYE LENS OPTICS system |
| CN110456479A (en) * | 2019-08-02 | 2019-11-15 | 佛山科学技术学院 | A kind of vehicle-mounted auxiliary driving imaging optical system of low distortion object lens of large relative aperture |
| CN110471165A (en) * | 2019-08-02 | 2019-11-19 | 佛山科学技术学院 | One kind, which disappears to distort, minimizes high-resolution FISH EYE LENS OPTICS system |
| CN110471166A (en) * | 2019-08-02 | 2019-11-19 | 佛山科学技术学院 | A kind of low distortion compact high-resolution FISH EYE LENS OPTICS system |
| CN114019662A (en) * | 2021-09-23 | 2022-02-08 | 北京控制工程研究所 | Large-view-field illumination uniformity optical system based on micro-lens array detector |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614708A (en) * | 1995-01-26 | 1997-03-25 | Hamamatsu Photonics K.K. | Optical feedback photodetection apparatus |
| JP2008083524A (en) * | 2006-09-28 | 2008-04-10 | Yokogawa Electric Corp | Both-side telecentric illumination optical system |
| CN101477240A (en) * | 2009-01-22 | 2009-07-08 | 中国科学院光电技术研究所 | Digital aerial survey full-color camera lens |
| CN102147519A (en) * | 2011-04-20 | 2011-08-10 | 中国科学院光电技术研究所 | Panchromatic objective lens of aerial camera for realizing wide angle as well as long and rear operating distance |
| CN103364928A (en) * | 2012-03-31 | 2013-10-23 | 上海微电子装备有限公司 | Projection objective lens optical system |
| JP2015215459A (en) * | 2014-05-09 | 2015-12-03 | コニカミノルタ株式会社 | Bi-telecentric optical system |
| CN106772933A (en) * | 2016-11-21 | 2017-05-31 | 中国科学院上海光学精密机械研究所 | The big visual field microcobjective optical system of wide spectrum |
| CN108020509A (en) * | 2017-12-12 | 2018-05-11 | 佛山科学技术学院 | The method and its device of a kind of optical projection tomography |
| CN109143548A (en) * | 2018-10-11 | 2019-01-04 | 佛山科学技术学院 | A kind of long reach high-resolution image bilateral telecentric optical system |
| CN109143558A (en) * | 2018-10-11 | 2019-01-04 | 佛山科学技术学院 | A kind of round-the-clock optical system of star sensor of miniaturization |
| CN109164559A (en) * | 2018-10-11 | 2019-01-08 | 佛山科学技术学院 | A kind of large-numerical aperture near-infrared image bilateral telecentric optical system |
| CN209690604U (en) * | 2019-04-29 | 2019-11-26 | 佛山科学技术学院 | A kind of number aerial mapping full-color camera telecentric optical system |
-
2019
- 2019-04-29 CN CN201910354745.0A patent/CN110007439B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614708A (en) * | 1995-01-26 | 1997-03-25 | Hamamatsu Photonics K.K. | Optical feedback photodetection apparatus |
| JP2008083524A (en) * | 2006-09-28 | 2008-04-10 | Yokogawa Electric Corp | Both-side telecentric illumination optical system |
| CN101477240A (en) * | 2009-01-22 | 2009-07-08 | 中国科学院光电技术研究所 | Digital aerial survey full-color camera lens |
| CN102147519A (en) * | 2011-04-20 | 2011-08-10 | 中国科学院光电技术研究所 | Panchromatic objective lens of aerial camera for realizing wide angle as well as long and rear operating distance |
| CN103364928A (en) * | 2012-03-31 | 2013-10-23 | 上海微电子装备有限公司 | Projection objective lens optical system |
| JP2015215459A (en) * | 2014-05-09 | 2015-12-03 | コニカミノルタ株式会社 | Bi-telecentric optical system |
| CN106772933A (en) * | 2016-11-21 | 2017-05-31 | 中国科学院上海光学精密机械研究所 | The big visual field microcobjective optical system of wide spectrum |
| CN108020509A (en) * | 2017-12-12 | 2018-05-11 | 佛山科学技术学院 | The method and its device of a kind of optical projection tomography |
| CN109143548A (en) * | 2018-10-11 | 2019-01-04 | 佛山科学技术学院 | A kind of long reach high-resolution image bilateral telecentric optical system |
| CN109143558A (en) * | 2018-10-11 | 2019-01-04 | 佛山科学技术学院 | A kind of round-the-clock optical system of star sensor of miniaturization |
| CN109164559A (en) * | 2018-10-11 | 2019-01-08 | 佛山科学技术学院 | A kind of large-numerical aperture near-infrared image bilateral telecentric optical system |
| CN209690604U (en) * | 2019-04-29 | 2019-11-26 | 佛山科学技术学院 | A kind of number aerial mapping full-color camera telecentric optical system |
Non-Patent Citations (1)
| Title |
|---|
| 刘帅;牛燕雄;刘海月;: "全向凝视光电成像系统鱼眼透镜的设计", 激光技术, no. 02 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441891A (en) * | 2019-08-02 | 2019-11-12 | 佛山科学技术学院 | A kind of compact ultra-wide angle FISH EYE LENS OPTICS system |
| CN110456478A (en) * | 2019-08-02 | 2019-11-15 | 佛山科学技术学院 | 3mm focal length ultra-wide angle FISH EYE LENS OPTICS system |
| CN110456479A (en) * | 2019-08-02 | 2019-11-15 | 佛山科学技术学院 | A kind of vehicle-mounted auxiliary driving imaging optical system of low distortion object lens of large relative aperture |
| CN110471165A (en) * | 2019-08-02 | 2019-11-19 | 佛山科学技术学院 | One kind, which disappears to distort, minimizes high-resolution FISH EYE LENS OPTICS system |
| CN110471166A (en) * | 2019-08-02 | 2019-11-19 | 佛山科学技术学院 | A kind of low distortion compact high-resolution FISH EYE LENS OPTICS system |
| CN110471165B (en) * | 2019-08-02 | 2024-02-13 | 佛山科学技术学院 | Small-sized high-resolution fisheye lens optical system capable of eliminating distortion |
| CN110456479B (en) * | 2019-08-02 | 2024-02-13 | 佛山科学技术学院 | Vehicle-mounted driving-assisting imaging optical system with low distortion and large relative aperture |
| CN110471166B (en) * | 2019-08-02 | 2024-02-13 | 佛山科学技术学院 | Low-distortion compact high-resolution fisheye lens optical system |
| CN110441891B (en) * | 2019-08-02 | 2024-02-13 | 佛山科学技术学院 | Compact ultra-wide angle fisheye lens optical system |
| CN110456478B (en) * | 2019-08-02 | 2024-03-26 | 佛山科学技术学院 | 3mm focal length ultra-wide angle fisheye lens optical system |
| CN114019662A (en) * | 2021-09-23 | 2022-02-08 | 北京控制工程研究所 | Large-view-field illumination uniformity optical system based on micro-lens array detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110007439B (en) | 2023-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110007439A (en) | A kind of number aerial mapping full-color camera telecentric optical system | |
| CN110007438A (en) | A kind of number aerial mapping color camera telecentric optical system | |
| CN110133828A (en) | Tight shot | |
| CN110007441A (en) | A kind of number aerial mapping color camera optical system | |
| CN103969800B (en) | Long-focus type panoramic annular imaging lens | |
| CN103777314A (en) | Wide-angle projection lens | |
| CN204044421U (en) | A kind of focal length type Panoramic annular imaging camera lens | |
| WO2021036393A1 (en) | 4k high resolution panoramic annular optical system | |
| CN110824669B (en) | 8K high-resolution panoramic annular optical lens | |
| CN109975963A (en) | A kind of small-size long working distance from object space telecentric optical system | |
| CN108508571A (en) | Imaging system lens group | |
| JP2020508481A (en) | Wide-angle lens, imaging device and drone | |
| CN105388591A (en) | Round-the-clock monitoring lens with wide aperture and large target surface, and imaging method thereof | |
| CN107300748A (en) | Optical imaging lens | |
| CN209690604U (en) | A kind of number aerial mapping full-color camera telecentric optical system | |
| CN110007440A (en) | A kind of number aerial mapping full-color camera optical system | |
| CN109557644A (en) | Optical lens and imaging device | |
| CN115128769A (en) | Optical lens | |
| CN110488470A (en) | Optical lens | |
| CN106094183B (en) | Focusing-style optical imaging system in a kind of high image quality | |
| CN209148949U (en) | A kind of day and night confocal camera lens | |
| CN111338062A (en) | Optical lens group, camera module and terminal | |
| CN108873266B (en) | Wide-angle lens | |
| CN110426824A (en) | A kind of recognition of face optical lens | |
| CN114114615B (en) | High-resolution floating focusing system and lens suitable for different object distances |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |