CN108663778A - Wide-angle high-definition imaging system with mixed bionic fisheye-compound eye structure - Google Patents
Wide-angle high-definition imaging system with mixed bionic fisheye-compound eye structure Download PDFInfo
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- CN108663778A CN108663778A CN201810420312.6A CN201810420312A CN108663778A CN 108663778 A CN108663778 A CN 108663778A CN 201810420312 A CN201810420312 A CN 201810420312A CN 108663778 A CN108663778 A CN 108663778A
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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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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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
- G02B13/001—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
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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
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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Abstract
The invention discloses a wide-angle high-definition imaging system with a mixed bionic fish eye-compound eye structure, wherein a spherical lens of a preceding stage imaging system collects light rays incident from a wide-angle target and focuses the light rays, a small-caliber lens group array of a subsequent stage imaging system comprises a plurality of small-caliber lens groups, the optical axis of each small-caliber lens group passes through the center of the spherical lens, each small-caliber lens group obtains sub-images with local view fields of +/-3 degrees, the adjacent small-caliber lens groups have 1-degree overlapped view fields, the MTF of the imaging quality of each small-caliber lens group in the +/-2.5-degree view field is more than or equal to 0.3, and the MTF of the edge 3-degree view field is more than 0.1. The invention has the characteristics of large-range general investigation and high-resolution detailed investigation, has large range of detectable target distance, simple structure of the objective lens, good stability, easy realization and low cost, and the small-caliber lens group has good imaging quality and has the advantages of low manufacturing cost and wide range of selectable materials.
Description
Technical field
The present invention relates to optical image technologies, and in particular to a kind of wide-angle high definition of the bionical flake-compound eye structural of mixing at
As system.
Background technology
The resolution ratio of optical imaging system determines the fidelity of the visual characteristic of its capture images, the higher meaning of resolution ratio
It is higher to the precision of target identification it；Visual field then determines that it observes the size of monitor area, and big visual field can be to the maximum extent
Eliminate monitoring blind area.However, big visual field is irreconcilable a pair of of conspicuous contradiction in optical imaging system design with high-resolution,
Because big visual field requires system to have smaller focal length, and high-resolution then requires system to have longer focal length.In investigation early warning, distant
Survey the photoelectric sensor of the fields such as remote sensing and surveillance monitor application, it is desirable to have both the spy of a wide range of generaI investigation and high-resolution detailed survey
Point.How or even more preferably resolution capability suitable with human eye vision is obtained in big field range, be that modern O-E Payload designs
One of ultimate challenge faced.Comparable imaging system instantaneous field of view is about 50 with human eye vision acuity ", and modern big visual field
O-E Payload requires in the range of nearly 100 ° of full filed（Including horizontal and vertical direction）High-resolution can be kept, is meaned
The detector pixel for entire imaging system requires to reach 100,000,000 magnitudes.Traditional small field of view camera scanning imaging is aided with subsequent figure
As the method for splicing, because dynamic response capability is poor, it is generally used for static scene, and cannot be used for the identification sense of moving-target
Know.On the other hand, more important question is that the optical system of so big view field imaging, image planes are usually all no longer one flat
Face, therefore traditional monolithic or spliced detector array obviously cannot be met the requirements.The crystalline lens of human eye is in oblate spheroid, visual field
Angle is smaller；And corresponding central recess human eye resolution capability highest, and as field angle increases, resolution capability significantly reduces.Flake
Construction it is similar to human eye, but crystalline lens is spheroidal, and outstanding advantages are that field angle is very big, can reach 220 °, still
Viewing distance is closer.Bionical fish eye lens is exactly using the short-focus lens of flake wide-angle image principle design, and field angle is close
Or more than 180 °, the disadvantage is that microscope group is complicated, the larger and resolution ratio that distorts is not high, especially the deformation of peripheral field clearly,
It is chiefly used in video monitoring.
Simple eye different with higher mammal, the vision of insect is generated by compound eye.Compound eye is made of many ommatidiums, such as dragonfly
Every compound eye of dragonfly has 28000 ommatidiums, and there are about 3200 ommatidiums for every compound eye of fly's eye.These ommatidiums are arranged in dome shape, to obtain
Obtain the space visual field greatly（Close to 240 °）.But ommatidium diameter is generally 15 ~ 50 μm, the local field of view undertaken only has the several years,
Resolution capability is lower than human eye, and eyesight only has 1m or so.Therefore, the compound eye structural of the vision based on insect come realize wide-angle high definition at
When picture, spatial resolution is directly limited by visual field, if eliminating above-mentioned limitation, has become vision based on insect
Compound eye structural realizes wide-angle high definition imaging field key technical problem urgently to be resolved hurrily.
Duke Univ USA Brady teaches seminar in paper " David J. Brady and Nathan Hagen.
Multiscale lens design, Optics Express 17(13):It is proposed in 10659-10674,2009 " multiple dimensioned
Imaging system is divided into the small camera array two parts of objective lens group and rear end by the concept of design, and successively in a series of papers
In disclose the multiple dimensioned design results of 1,000,000,000 Pixel-level cameras, wherein object lens are coated on one heart using two hemisphere bowl-type lens
Balsaming lens form on one sphere lens, small camera use multiple lens combination forms, in order to obtain preferable image quality, part
Lens use aspherical or diffraction element so that optional material is limited, and processing cost is higher, and uses spherical lens then completely
Lead to the reduction of system image quality again, the local field of view of small camera is no more than ± 2.6 °, and the modulation of peripheral field passes other than 2.2 °
Delivery function（MTF）Numerical value is less than 0.1.But the radius of curvature that balsaming lens form is hemisphere bowl and the astrosphere being wrapped by
It is equal, it is desirable that the coefficient of thermal expansion and refractive index of two lens materials must match so that optional material is limited, and mechanics is stablized
Property and thermal stability are poor, and the Curvature Radius Deviation of two lens and eccentric error must be controlled, cause manufacturing cost compared with
It is high.
Invention content
The technical problem to be solved in the present invention：For the above problem of the prior art, it is multiple to provide a kind of bionical flake-of mixing
The characteristics of wide-angle high definition imaging system of ocular structure, the present invention has both a wide range of generaI investigation and high-resolution detailed survey, detectable target
Distance range it is big, objective lens arrangement is simple, stablizes, is easily achieved and at low cost, small-bore lens group good imaging quality and tool
Have the advantages that manufacturing cost is low, optional material range is wide.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing, including prime imaging system and rear class imaging system
System, the prime imaging system include single sphere lens, and the rear class imaging system includes small-bore lenslet array, institute
Sphere lens are stated to collect the light of wide-angle target incidence and focus on the spherical shape centered on the sphere lens center of sphere lens
It relays in image planes, the small-bore lenslet array includes on multiple spherical surfaces being evenly spaced in centered on sphere lens center
Small-bore lens group, the optical axis of each small-bore lens group passes through sphere lens center, and each small-bore lens group obtains
The subgraph of local field of view ± 3 °, adjacent small-bore lens group obtain subgraph between there are 1 ° of overlapped fov, and respectively
Modulation transfer function of a small-bore lens group image quality in ± 2.5 ° of visual fields be all higher than or equal to 0.3,3 ° of edge
The modulation transfer function of visual field is more than 0.1.
Preferably, the optical axis included angle of adjacent small-bore lens group is 5 ° in the small-bore lenslet array.
Preferably, the prime imaging system further includes monocular tube, and the monocular tube front end installation sphere lens, rear end are set
There are spherical crown, the center of the spherical crown to be overlapped with sphere lens center, arrangement is for installing each small-bore lens group on the spherical crown
Array of orifices, the center line of arbitrary aperture passes through sphere lens center in the array of orifices.
Preferably, radial positioning is carried out using shaft hole matching between the sphere lens and monocular tube, is carried out using hole shoulder
Axially position.
Preferably, all lens are plane or spherical lens in the small-bore lens group.
Preferably, the small-bore lens group include the biconvex lens being sequentially arranged, cemented doublet, cemented doublet,
Focusing microscope group and focus planar detector, the biconvex lens, cemented doublet, cemented doublet, focusing microscope group are successively by ball
Relaying picture in shape relaying image planes is imaged onto on focus planar detector, close to double between the cemented doublet, cemented doublet
Aperture diaphragm is equipped at balsaming lens cemented doublet.
Preferably, the small-bore lens group further includes lens barrel, the biconvex lens, cemented doublet, cemented doublet
Mounted on the front end of lens barrel and shaft hole matching progress radial positioning is respectively adopted, using hole shoulder progress axially position；The focusing
In the mirror cell for the rear end that microscope group and focus planar detector are mounted on lens barrel, the focusing microscope group and focus planar detector use
Shaft hole matching carries out radial positioning, carries out axially position using hole shoulder.
Preferably, the focusing microscope group is made of planoconvex spotlight and meniscus shaped lens.
Compared with the prior art, the advantages of the present invention are as follows：
1）The wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing of the present invention is obtained by each small-bore lens group
The subgraph of local field of view ± 3 °, adjacent small-bore lens group obtain subgraph between there are 1 ° of overlapped fov, and respectively
Modulation transfer function of a small-bore lens group image quality in ± 2.5 ° of visual fields be all higher than or equal to 0.3,3 ° of edge
The modulation transfer function of visual field is more than 0.1, improves the imaging capability of rear class imaging system, overcomes fish eye lens edge
The shortcomings of visual field distortion is big, spatial resolution is low and compound eye lens detection range is short, can realize that 100 ° or more big visual field is real-time
Imaging, and keep being better than 10 in full filed " spatial resolution, imaging performance close to diffraction limit, have both a wide range of generaI investigation and
The characteristics of high-resolution detailed survey.
2）On the basis of the present invention improves the imaging capability of rear class imaging system, it may be implemented to simplify prime imaging system
System, prime imaging system include single sphere lens, compared with the prior art is using the form of multiple lens combinations or gluing
Have the advantages that it is simple in structure, stablize, be easily achieved with it is at low cost.
3）The distance range of the detectable target of imaging system of the present invention is big, to the target in hundreds of meters to several kilometer ranges
It can be imaged without focusing.
4）All lens further use plane or spherical lens in the small-bore lens group of the present invention, with the prior art
It is compared using aspherical or diffraction element, has the advantages that manufacturing cost is low, optional material range is wide, it is same as the prior art to adopt
It is compared with the scheme of spherical lens, image quality is more preferable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the lens barrel structure figure of prime imaging system in the embodiment of the present invention.
Fig. 3 is the lens barrel structure figure of the small-bore lens group of rear class imaging system in the embodiment of the present invention.
Fig. 4 is the light path design figure of the small-bore lens group of rear class imaging system in the embodiment of the present invention.
Fig. 5 is MTF curve figure of the imaging system of the present invention when detecting infinity target.
Fig. 6 is figure of optical lens preferred embodiment of the imaging system of the present invention when detecting infinity target（Point range figure）.
Fig. 7 is MTF curve figure of the imaging system of the present invention in the remote targets of detection 300m.
Marginal data：1, prime imaging system；11, sphere lens；111, sphere lens center；112, spherical relay picture
Face；12, monocular tube；13, spherical crown；2, rear class imaging system；21, small-bore lenslet array；22, small-bore lens group；221、
Biconvex lens；222, cemented doublet；223, cemented doublet；224, focusing microscope group；225, focus planar detector；226, mirror
Cylinder；227, mirror cell；228, planoconvex spotlight；229, meniscus shaped lens；23, aperture diaphragm；3, image processing system.
Specific implementation mode
As shown in Figure 1, the present embodiment provides a kind of wide-angle high definition imaging systems of the bionical flake-compound eye structural of mixing to include
Prime imaging system 1 and rear class imaging system 2, prime imaging system 1 include single sphere lens 11, rear class imaging system 2
Including small-bore lenslet array 21, sphere lens 11 are collected the light of wide-angle target incidence and are focused on sphere lens 11
In spherical relay image planes 112 centered on sphere lens center 111, small-bore lenslet array 21 includes multiple is evenly spaced in
The optical axis of small-bore lens group 22 on spherical surface centered on sphere lens center 111, each small-bore lens group 22 passes through
Sphere lens center 111, and each small-bore lens group 22 obtains the subgraph of local field of view ± 3 °, adjacent small-bore lens
There are 1 ° of overlapped fovs between the subgraph that group obtains, and each 22 image quality of small-bore lens group is in ± 2.5 ° of visual fields
Modulation transfer function be all higher than or be more than 0.1 close to 0.3, in the modulation transfer functions of the 3 ° of visual fields in edge.Because whole
A imaging system be it is spherically symmetric about sphere lens center 11, each small-bore lens group 22 be it is identical, it is small-bore
The sum of lens group 22 depends on the full filed size requirements of imaging system, generally can reach 100 ° or more.It is small in the present embodiment
The visual field of bore lens group 22 be ±（3.24°×2.43°）The optical axis included angle of rectangular field, adjacent small-bore lens group 22 is
5°.Vignetting ratio of the small-bore lens group 22 at 2.5 ° of edge visual field is 48%, and the vignetting ratio at 3 ° of edge visual field is
62%, vignetting is that there are overlapped fovs between the subgraph obtained in order to ensure adjacent small-bore lens group.
In the present embodiment, a diameter of 129.6mm of sphere lens 11, material is given birth to for Chengdu Guangming Photoelectricity Joint-stock Co., Ltd
The radius of curvature of the K9 glass of production, spherical relay image planes 112 is 94.3mm.
As shown in Fig. 2, prime imaging system further includes monocular tube 12 in the present embodiment, the installation of 12 front end of monocular tube is spherical thoroughly
Mirror 11, rear end are equipped with spherical crown 13, and the center of spherical crown 13 is overlapped with sphere lens center 111, and arrangement is each for installing on spherical crown 13
The array of orifices of small-bore lens group 22, the center line of arbitrary aperture passes through sphere lens center 111 in array of orifices.
In the present embodiment, radial positioning is carried out using shaft hole matching between sphere lens 11 and monocular tube 12, using hole shoulder
Axially position is carried out, ensures that above-mentioned eccentricity and axial positioning errors are less than 20 μm using Precision NC machine center.
In the present embodiment, all lens are plane or spherical lens in small-bore lens group 22, are used with the prior art
Aspherical or diffraction element is compared, and has the advantages that manufacturing cost is low, optional material range is wide, same as the prior art to use ball
The scheme of face lens is compared, and image quality is more preferable.
As shown in Figure 3 and Figure 4, in the present embodiment, small-bore lens group 22 includes the biconvex lens 221, double being sequentially arranged
Balsaming lens 222, cemented doublet 223, focusing microscope group 224 and focus planar detector 225, biconvex lens 221, double gluings are thoroughly
Relaying picture in spherical relay image planes 112 is imaged onto focal plane successively and visited by mirror 222, cemented doublet 223, focusing microscope group 224
It surveys on device 225, is equipped with hole between cemented doublet 222, cemented doublet 223 at cemented doublet cemented doublet 223
Diameter diaphragm 23.Biconvex lens 221, cemented doublet 222, cemented doublet 223, focusing microscope group 224 all lens be flat
Face or spherical lens.In the present embodiment two surface curvature radiuses of biconvex lens 221 be respectively 76.9533mm and-
76.9533mm center thickness is 2mm, material is the H-ZF1 glass of Chengdu Guangming Photoelectricity Joint-stock Co., Ltd's production；It is double glued saturating
Three surface curvature radiuses of mirror 222 are 19.2542mm, 13.3511mm and -69.9697mm respectively, center thickness be followed successively by 4mm,
9.5mm, material are the H-ZBAF50 glass and D-LAF50 glass of Chengdu Guangming Photoelectricity Joint-stock Co., Ltd's production；It is double glued saturating
Three surface curvature radiuses of mirror 223 are -10.7640mm, 9.8119mm and -9.8119mm respectively, center thickness be followed successively by 8mm,
1.8mm, material are the H-ZF7LA glass and H-ZPK5 glass of Chengdu Guangming Photoelectricity Joint-stock Co., Ltd's production；Focal plane detection
Device 225 selects the MT9P006 cmos detectors of Semiconductor Components Industries, LLC companies, has
It is 2592 × 1944 to imitate pixel number, and pixel size is 2.2 μm；The bore of aperture diaphragm 23 is 4.7mm.By each focal plane detection
The sub-image data that device 223 obtains is transferred to image processing system 3, and subgraph array is stitched together by image processing system 3
Produce wide-angle high-definition image.Existing for the image split-joint method that image processing system 3 uses utilizes between adjacent sub-images
Overlapped fov carries out the registration of each subgraph array based on the principle of least square so that the target image information in overlapped fov
Difference minimizes, and specific algorithm can refer to Wang Juan, the auspicious of Shi Jun, Wu Xian " image mosaic technology summary " computer application research
25(7): 1940-1943, 2008。
As shown in Figure 3 and Figure 4, small-bore lens group 22 further includes lens barrel 226, biconvex lens 221, cemented doublet 222,
Cemented doublet 223 is mounted on the front end of lens barrel 226 and shaft hole matching is respectively adopted and carries out radial positioning, carries out axis using hole shoulder
To positioning；In the mirror cell 227 for the rear end that focusing microscope group 224 and focus planar detector 225 are mounted on lens barrel 226, focusing microscope group
224 and focus planar detector 225 using shaft hole matching carry out radial positioning, using hole shoulder carry out axially position.Utilize superfinishing
Close turnery processing ensures that eccentricity and axial positioning errors are less than 10 μm.
As shown in Figure 3 and Figure 4, focusing microscope group 224 is made of planoconvex spotlight 228 and meniscus shaped lens 229.The present embodiment
In, the sphere curvature radius of planoconvex spotlight 228 is 15.3726mm, and center thickness is 2mm, and material, which is Chengdu light photoelectricity share, to be had
The H-ZK14 glass of limit company production；Two surface curvature radiuses of meniscus shaped lens 229 be respectively 8.3106mm and
4.2142mm, center thickness are 6mm, and material is the H-ZF7LA glass of Chengdu Guangming Photoelectricity Joint-stock Co., Ltd's production.
The present embodiment mixes the wide-angle high definition imaging system of bionical flake-compound eye structural for hundreds of meters to several kilometer ranges
Variable detection target, and be operated in visible light wave range, the overall length 264.725mm of the present embodiment imaging system, effective focal length are
50.3948mm, entrance pupil aperture are 16.585mm, and the resolution of diffraction of entire visible light wave range is better than in 100 ° of full fileds
10″.Imaging system can be imaged in 100 ° of full fileds close to diffraction limit, when detection range is infinity target, system
Panchromatic MTF as shown in figure 5, disc of confusion（Point range figure）As shown in Figure 6；When detection range is 300m remote, the panchromatic MTF of system
As shown in fig. 7, system without focusing and imaging performance does not have significant changes.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing, it is characterised in that：Including prime imaging system
（1）With rear class imaging system（2）, the prime imaging system（1）Including single sphere lens（11）, rear class imaging system
System（2）Including small-bore lenslet array（21）, the sphere lens（11）It collects the light of wide-angle target incidence and focuses on
With sphere lens（11）Sphere lens center（111）Centered on spherical relay image planes（112）On, the small-bore lens group
Array（21）It is evenly spaced in sphere lens center including multiple（111）Centered on spherical surface on small-bore lens group
（22）, each small-bore lens group（22）Optical axis pass through sphere lens center（111）, and each small-bore lens group（22）It obtains
Obtain the subgraph of local field of view ± 3 °, adjacent small-bore lens group（22）There are 1 ° of overlappings to regard between the subgraph of acquisition
, and each small-bore lens group（22）Modulation transfer function of the image quality in ± 2.5 ° of visual fields be all higher than or wait
It is more than 0.1 in 0.3, in the modulation transfer functions of the 3 ° of visual fields in edge.
2. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 1, it is characterised in that：
The small-bore lenslet array（21）In adjacent small-bore lens group optical axis included angle be 5 °.
3. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 2, it is characterised in that：
The prime imaging system further includes monocular tube（12）, the monocular tube（12）Front end is installed by sphere lens（11）, rear end is equipped with
Spherical crown（13）, the spherical crown（13）Center and sphere lens center（111）It overlaps, the spherical crown（13）Upper arrangement is for installing
Each small-bore lens group（22）Array of orifices, the center line of arbitrary aperture passes through sphere lens center in the array of orifices
（111）.
4. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 3, it is characterised in that：
The sphere lens（11）And monocular tube（12）Between radial positioning carried out using shaft hole matching, carried out using hole shoulder axial fixed
Position.
5. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 1, it is characterised in that：
The small-bore lens group（22）In all lens be plane or spherical lens.
6. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 1, it is characterised in that：
The small-bore lens group（22）Including the biconvex lens being sequentially arranged（221）, cemented doublet（222）, cemented doublet
（223）, focusing microscope group（224）And focus planar detector（225）, the biconvex lens（221）, cemented doublet（222）, it is double
Balsaming lens（223）, focusing microscope group（224）Successively by spherical relay image planes（112）On relaying picture be imaged onto focal plane detection
Device（225）On, the cemented doublet（222）, cemented doublet（223）Between close to cemented doublet cemented doublet
（223）Place is equipped with aperture diaphragm（23）.
7. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 6, it is characterised in that：
The small-bore lens group（22）It further include lens barrel（226）, the biconvex lens（221）, cemented doublet（222）, double gluings
Lens（223）Mounted on lens barrel（226）Front end and be respectively adopted shaft hole matching carry out radial positioning, carried out using hole shoulder it is axial
Positioning；The focusing microscope group（224）And focus planar detector（225）Mounted on lens barrel（226）Rear end mirror cell（227）
It is interior, the focusing microscope group（224）And focus planar detector（225）Using shaft hole matching carry out radial positioning, using hole shoulder into
Row axially position.
8. the wide-angle high definition imaging system of the bionical flake-compound eye structural of mixing according to claim 7, it is characterised in that：
The focusing microscope group（224）By planoconvex spotlight（228）And meniscus shaped lens（229）Composition.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769135A (en) * | 2019-10-17 | 2020-02-07 | 天津大学 | Bionic compound eye image acquisition device |
| CN112433328A (en) * | 2020-11-09 | 2021-03-02 | 中国科学院西安光学精密机械研究所 | Large-view-field star sensor based on bionic compound eye |
| CN115629076A (en) * | 2022-09-27 | 2023-01-20 | 威海华菱光电股份有限公司 | Array type image detection device |
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| CN102866480A (en) * | 2012-09-29 | 2013-01-09 | 北京空间机电研究所 | Large view field optical imaging system based on computing imaging technology |
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| CN203838419U (en) * | 2013-12-30 | 2014-09-17 | 苏州大学 | Optical imaging system for large-scale high-resolution remote sensing camera |
| CN204188263U (en) * | 2014-06-06 | 2015-03-04 | 苏州大学 | A kind of wide field staring formula spectrum imaging system |
| CN104079808A (en) * | 2014-07-13 | 2014-10-01 | 西安电子科技大学 | Ultrahigh resolution wide-field imaging system |
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| CN110769135A (en) * | 2019-10-17 | 2020-02-07 | 天津大学 | Bionic compound eye image acquisition device |
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