CN203502657U - Wide-view-field image-telecentric optical system of three-linear-array stereo aerial survey camera - Google Patents
Wide-view-field image-telecentric optical system of three-linear-array stereo aerial survey camera Download PDFInfo
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- CN203502657U CN203502657U CN201320622387.5U CN201320622387U CN203502657U CN 203502657 U CN203502657 U CN 203502657U CN 201320622387 U CN201320622387 U CN 201320622387U CN 203502657 U CN203502657 U CN 203502657U
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Abstract
The utility model provides a wide-view-field image-telecentric optical system of a three-linear-array stereo aerial survey camera. The optical system comprises a first negative lens, a second negative lens, a first positive lens, a third negative lens, a first triplet lens group, a diaphragm, a second positive lens, a fourth negative lens, a second triplet lens group, a third positive lens, a fifth negative lens, a sixth negative lens, a fourth positive lens, and a multispectral splitting system equivalent flat which are successively arranged along the same optical axis, wherein the second positive lens, the fourth negative lens, the third positive lens, the fifth negative lens, the sixth negative lens, the fourth positive lens and the multispectral splitting system equivalent flat form a rear lens group, the diaphragm is positioned at the focal plane position of the rear lens group, the first triplet lens group is of a structure which successively includes a negative lens, a positive lens and a negative lens, and the second triplet lens group is of also of the structure which successively includes a negative lens, a positive lens and a negative lens. The optical system of the utility model is characterized by wide view field, high resolution and image telecentricity.
Description
Technical field
The utility model belongs to airborne remote sensing and technical field of mapping, relates to a kind of optical system that is applied to the new load of aviation earth observation optics.
Background technology
The three-dimensional aviation measuring cameras of three linear arrays are mounted on aircraft platform, by aircraft, are pushed away and are swept, utilize three linear array detectors on focal plane obtain same atural object forward sight, under look, backsight image, finally utilize image processing techniques to obtain atural object three-dimensional digit image.
The three-dimensional aerial survey digital camera of three linear arrays enjoys the concern of each side always as a focus of foreign study, it is single-lens interior splicing form and the outer splicing form of three-lens that its technical implementation way also has two kinds of modes.The representative of single-lens interior splicing has the STARIMAGER tri-linear array scan image systems of the ADS40/80 camera of Leica company, the development of Japanese STARLABO company and the JAS-150 linear array push of German Jena-Optronik company development to sweep camera, and the representative of the outer splicing of three-lens is 3-DAS-1 and the 3-OC of Wehrli & Associates and Geosystem company.
The airborne Aviation Digital sensor of ADS40, adopts linear array push-scanning image, is global First space digital sensor, has represented the recent development of current technology for information acquisition, in 2000 Nian You Switzerland Leica companies, releases, and within 2008, has released up-to-date products A DS80.ADS40 be imaging surface settle forward sight, under look and three CCD linear arrays of backsight, when photography, form three air strips and realize photogrammetric.It is a kind of multi-functional, digitized airborne remote sensing sensor that can simultaneously obtain stereopsis and colored multispectral image.
The three-dimensional aviation measuring camera of STARIMAGER tri-linear arrays is that the units such as STARLABO company associating Tokyo Universities in 2002 are a kind of high-precision three linear array digital scanning picture systems that become figure for large scale of developing in dustoff.On the focal plane of its camera, place altogether four line array CCDs, wherein three line array CCDs be placed on respectively forward sight, in look and backsight, in every linear array, comprise R, G in addition, B obtains coloured image, and three-dimensional and multispectral image can be provided.
JAS-150 tri-linear array aviation measuring cameras as German Jena-Optronik Group corporation in 2006, release towards follow-on digital aviation scanning camera, on target surface, adopt the Linear CCD Detector of 9 12000 pixels, wherein 4 can be obtained R, G, B and near infrared multispectral data, other 5 there is blind spot for fear of digital elevation model, respectively under depending on placing to obtain panchromatic image with four different angles.
3-DAS-1 tri-linear array aviation measuring cameras are outer digital aviation measuring cameras that splice of a employing three-lens that Wehrli & Associates and Geosystem company releases for 2004, and it adopts three mutually strict fixing optical systems to obtain terrain object image.3-OC tri-linear array aviation measuring cameras are digital aviation measuring cameras of the outer splicing of modified that 3-DAS-1 is carried out.
The choice of technology of China CCD aerial camera the important kind of area array CCD camera as research of technique.Photoelectric Technology Inst., Chinese Academy of Sciences, " the large face battle array colored CCD digital aviation measuring camera system development " project under National 863 is supported, its panchromatic CCD adopts the large area array CCD of 9K * 9K, and multispectral employing 2K * 2KCCD obtains respectively R, G, B image.
The large area array CCD digital camera system MADC that the multiple modules such as remote sensing application research institute of the Chinese Academy of Sciences develops a set of wide visual field for 2003, multispectral and three-dimensional imaging are integrated, MADC system is comprised of the large area array CCD digital camera of 3 4K * 4K.
The SWDC aviation digital camera that the first woods academician of China mapping Liu of academy of sciences presides over development be take multi-lens imaging technology as basis, it adopts the integrated a plurality of high-end civil digital cameras of outer field stitching technology, and (unit pixel count is 3,900 ten thousand, Pixel size is 6.8 μ m), during photography, expose simultaneously, image is corrected afterwards, be spliced into the large format high resolving power virtual image of unified projection centre, thereby the high resolving power of realization, on a large scale ground covers.
Three-dimensional aviation measuring camera for linear array detector also belongs to blank at home at present, and the three-dimensional aviation measuring camera system of three linear arrays needs a kind of large visual field, high resolving power, high-precision optical system, its request for utilization is very high, and technical difficulty is very large, and domestic this type of optical system that there is no occurs.
Utility model content
The features such as the utility model provides a kind of three-dimensional aviation measuring camera optical system of the wide visual field image space heart three linear arrays far away that is applied to the three-dimensional aerial survey of three linear arrays field, and it has large visual field, high resolving power, the image space heart far away.
Basic technical scheme of the present utility model is as follows:
The three-dimensional aviation measuring camera optical system of this wide visual field image space heart three linear arrays far away, comprises the first negative lens setting gradually along same optical axis, the second negative lens, the first positive lens, the 3rd negative lens, the one or three balsaming lens group, diaphragm, the second positive lens, the 4th negative lens, the two or three balsaming lens, the 3rd positive lens, the 5th negative lens, the 6th negative lens, the 4th positive lens, multispectral beam splitting system equivalent plate; Wherein, the second positive lens, the 4th negative lens, the 3rd positive lens, the 5th negative lens, the 6th negative lens, the 4th positive lens, multispectral beam splitting system equivalent plate forms rear lens group jointly, and diaphragm is positioned at described rear lens group front focal plane place; The one or three described balsaming lens adopts the structural shape of negative lens-positive lens-negative lens, and the two or three described balsaming lens adopts the structural shape of negative lens-positive lens-negative lens.
Based on above-mentioned basic scheme, the utility model is also further done following optimization and is limited and improve:
The parameter of each lens is as follows successively above:
The first negative lens 1:1.7<n
1<1.8 ,-f ' <f
1' <-1.5f ', f
1' <R
1<1.5f
1', R
2<0.5f
1';
The second negative lens 2:1.4<n
2<1.6 ,-1.5f ' <f
2' <-2f ', 2f
2' <R
3<2.5f
2', R
4<0.5f
2';
The first positive lens 3:1.8<n
3<2.0,1.5f ' <f
3' <2f ', 2f
3' <R
5<3f
3', R
6<1.5f
3';
The 3rd negative lens: 1.4<n
4<1.6 ,-f ' <f
4' <-1.5f ', 2f
4' <R
7<2.5f
4', R
8<f
4';
Three lens that form the one or three balsaming lens are respectively:
1.8<n
51<1.9,-3f’<f
51’<-4f’，0.1f
51’<R
9<0.2f
51’，R
10<0.2f
51’；
1.7<n
52<1.8,0.1f’<f
52’<0.5f’，f
52’<R
10<1.5f
52’，R
11<1.5f
52’；
1.6<n
53<1.8,-0.5f’<f
53’<-f’，0.5f
53’<R
11<f
53’，R
12<0.5f
52’；
The second positive lens: 1.6<n
7<1.8,0.5f ' <f
7' <f ', f
7' <R
13<1.5f
7', R
14<1.5f
7';
The 4th negative lens: 1.4<n
8<1.6 ,-3f ' <f
8' <-4f ', 0.1f
8' <R
15<0.5f
8', R
16<0.4f
8';
Three lens that form the two or three balsaming lens are respectively:
1.6<n
91<1.8,-0.5f’<f
91’<-f’，2f
91’<R
17<3f
91’，R
18<f
91’；
1.4<n
92<1.6,0.2f’<f
92’<0.5f’，f
92’<R
18<1.5f
92’，R
19<f
92’；
1.6<n
93<1.7,-0.5f’<f
93’<-f’，0.1f
93’<R
19<0.5f
93’，R
20<1.2f
93’；
The 3rd positive lens: 1.8<n
10<2.0, f ' <f
10' <1.5f ', 2f
10' <R
21<3f
10', R
22<1.5f
10';
The 5th negative lens: 1.4<n
11<1.6 ,-2f ' <f
11' <-3f ', f
11' <R
23<1.5f
11', R
24<0.5f
11';
The 6th negative lens: 1.6<n
12<1.8 ,-5f ' <f
12' <-8f ', 0.1f
12' <R
25<0.5f
12', R
26<0.2f
12';
The 4th positive lens: 1.6<n
13<1.8,2f ' <f
13' <3f ', 2f
13' <R
27<3f
13', R
28<1.5f
13'.
The first above-mentioned negative lens is lanthanum flint glass LAF3, the second negative lens is special crown glass FK2, the first positive lens is ZLAF75A, the 3rd negative lens is FK2, three lens that form the one or three balsaming lens are respectively ZF52, ZBAF20 and TF3, the second positive lens is ZBAF3, the 4th negative lens is QK3, three lens that form the two or three balsaming lens are respectively F13, FK2 and TF3, the 3rd positive lens is ZLAF75A, and the 5th negative lens is K9, and the 6th negative lens is ZF6, the 4th positive lens is ZF88, and multispectral beam splitting system equivalent plate is optical quartz glass JGS1.
Above-mentioned multispectral beam splitting system equivalent plate is multispectral Amici prism group.
Above in each parameter, f
1', f
2', f
3', f
4', f
7', f
8', f
10', f
11', f
12', f
13', be respectively the first negative lens, the second negative lens, the first positive lens, the 3rd negative lens, the second positive lens, the 4th negative lens, the 3rd positive lens, the 5th negative lens, the 6th negative lens, the focal length of the 4th positive lens.F
51' be the focal length of meniscus lens in three balsaming lenss, f
52' be the focal length of positive lens in three balsaming lenss, f
53' be the focal length of negative lens in three balsaming lenss.F
91' be the focal length of the first negative lens in three balsaming lenss, f
92the focal length of positive lens in ' three balsaming lens, f
93the focal length of the second negative lens in ' three balsaming lens, the focal length that f ' is whole optical system; R is lens surface curvature radius (the same, to indicate in turn each faces of each lens according to footmark); N is refractive index.
Optical system of the present utility model has adopted miniaturization, light-weight design, has high resolving power, large visual field, the features such as telecentric beam path in image space.This optical system has good image quality, good thermal adaptability on the one hand, has reduced the demand to camera thermal control precision; Owing to adopting telecentric beam path, make the three-dimensional aviation measuring camera of three linear arrays there is fine illuminance uniformity and color reducibility on the other hand.
Specifically have the following advantages:
1) adopt single camera lens, make the three-dimensional aviation measuring camera of whole three linear arrays simple in structure, compact.
2) realize large visual field and high resolution capacity simultaneously.Optical lens visual field reaches 77 °, when guaranteeing 60 °, large working field of view angle and large base-height ratio, has higher ground pixel resolution, and this raising to three-dimensional aerial survey and aerial survey efficiency has extremely important meaning.
3) adopt telecentric beam path structure.When thering is large visual field on the one hand, make image planes have splendid illuminance uniformity; The image planes out of focus that the image space heart far away causes temperature is on the other hand insensitive, the requirement of favourable reduction to camera thermal control precision.In addition, telecentric beam path in image space is useful to reducing detector number, the drift of inhibition picture point and colour correction.
Accompanying drawing explanation
Fig. 1 is the three-dimensional aviation measuring camera imaging of three linear arrays schematic diagram.
Fig. 2 is the utility model optical system configuration composition.
Fig. 3 is the aberration curve figure of the utility model optical system.
Fig. 4 is the utility model optical system MTF curve (0 °～22 ° of angle of half field-of view).
Fig. 5 is the utility model optical system MTF curve (22 °～38.5 ° of angle of half field-of view).
Embodiment
The three-dimensional aviation measuring cameras of the wide visual field image space heart far away three linear arrays are pushed away and are swept by aircraft, by terrain object image in the forward sight that is positioned in image planes, under look, on retracement line array detector, its optical system main performance index is:
1. service band is 0.45 μ m～0.75 μ m;
2. system focal length 130mm
3. field angle is 77 °
4. 60 °, working field of view angle (after line of engagement array detector, single solid angle fabric width direction)
5. relative aperture is 1/5
6. detector spatial frequency 77lp/mm
7. distortion≤3%
8. telecentric beam path in image space structure, the heart far away degree≤0.1 °
9. optical transfer function MTF0 visual field >0.63(77lp/mm)
0.7 visual field >0.46(77lp/mm)
1 visual field >0.32(77lp/mm)
10. base-height ratio 0.83,27.7 ° of imaging solid angles, 0 °, 17 °
11. optical system overall length 504.2mm
The gordian technique of taking in the utility model implementation procedure:
1, optical system Lightweight Technology
During for aberration correction, reduce as far as possible system bulk and weight, optical system choose reasonable version, and adopted a quadric surface.This aspheric surface is positioned near diaphragm, for proofreading and correct the aberration relevant with bore.Adopt aspheric surface, not only can reduce quantity, system length and the weight of lens, make system architecture simple, compact, and met aircraft window and the requirement of airborne stable platform to three linear array aviation measuring camera weight and size.
2, wide spectrum long-focus system achromatism technology
The three-dimensional aviation measuring camera optical system of the wide visual field image space heart three linear arrays far away is the optical system for high resolution of a wide spectrum, long-focus, second order spectrum becomes the key factor that is constrained to image quality raising, therefore, the correction of second order spectrum is the major issue that must solve in design, is also one of large difficult point for optical design.Ordinary optical combination of materials cannot be eliminated second order spectrum, therefore in design, adopt optical material TF3 and the FK2 with anomalous dispersion characteristic, the one or three balsaming lens lens material is ZF52, ZBAF20 and TF3 combination, the one or three balsaming lens optical material is comprised of TF3, FK2 and F13, utilizes cemented surface to eliminate second order spectrum and aberration.
3, excellent environment adaptability design
The related optical system of the utility model still has good image quality under 20 ± 5 ℃ of variation of ambient temperature.The measure of mainly taking in design has:
1) material that choose reasonable optical system is used, matches its expansion coefficient and lens barrel material expansion coefficient
2) adopt telecentric structure, make temperature not obvious on image quality impact
4, telecentric beam path in image space design
Telecentric beam path in image space makes optical system diaphragm be positioned at mirror group focal plane place after system.The wide visual field three-dimensional aviation measuring camera optical system of three linear arrays adopts telecentric beam path in image space structure to mainly contain following advantage:
1) image planes have splendid illuminance uniformity
2) the image planes out of focus that telecentric structure causes temperature is insensitive
3) there is multispectral colour splitting prism at optical system rear, incident beam is divided into R, G, the multispectral light beam of B, and it is consistent that telecentric beam path can make to incide colour splitting prism reflecting surface glazed thread angle, and different visual field spectrum drifts are consistent, be conducive to colour correction, nor have picture point drift.
4) be conducive to reduce the detector number adopting.Telecentric optical system adopts multispectral colour splitting prism to produce R, G, B is multispectral, has the packaging of many linear array detectors for splicing in wall scroll, and R, G, B can adopt down 3 that look in detector, thereby reduces detector number.
5, good camera lens optimisation technique
General aeroplane photography camera lens, although field angle is also very large, distorts also very little, and optical system is substantially all symmetrical structure, and namely optical system emergence angle and incident angle are suitable.The relation being directly proportional to the biquadratic of field angle cosine according to visual field, image planes edge illumination, when the angle of view is larger, its image planes edge illumination is very low, and image illumination uniformity is very poor, has a strong impact on application.Although can adopt the way that adds gradual filter before camera lens that edge illumination and center illumination are improved, whole optical system loss luminous energy is excessive, and system signal noise ratio declines very large.For three linear array aviation measuring cameras, the loss of a large amount of luminous energies will greatly reduce system signal noise ratio, and this is unallowed.
Conventionally, to have minimum distortion be conflicting with heart degree far away to optical system.Generally speaking, the large low distortion aerial survey in visual field optical system is all to adopt symmetrical beam line structure, and to obtain extremely low distortion, but this structure image illumination uniformity is very poor.In order to improve image illumination uniformity, just must reduce optical system chief ray emergence angle, but reduce emergence angle, can make again whole optical lens structure lose symmetry, cause distortion not accomplish very little.
The three-dimensional aviation measuring camera optical system of the wide visual field image space heart three linear arrays far away that the utility model proposes, in design process, by choose reasonable optical material, careful optimal design repeatedly, guaranteeing on the basis of the lower distortion of optical system, make optical system emergence angle≤0.1 °, guaranteed image illumination uniformity.
As shown in Figure 2, the whole optical system of the present embodiment is image space telecentric system, has wherein adopted bi-material in two three balsaming lens groups 5 and 9, three balsaming lens groups 9 to adopt special flint glass and the fluor crown combination with anomalous dispersion characteristic; In addition, include a quadric surface, it is positioned at the R of the second positive lens 7
14face.
The parameter of each lens is specific as follows:
The first negative lens 1:1.7<n
1<1.8 ,-f ' <f
1' <-1.5f ', f
1' <R
1<1.5f
1', R
2<0.5f
1';
The second negative lens 2:1.4<n
2<1.6 ,-1.5f ' <f
2' <-2f ', 2f
2' <R
3<2.5f
2', R
4<0.5f
2';
The first positive lens 3:1.8<n
3<2.0,1.5f ' <f
3' <2f ', 2f
3' <R
5<3f
3', R
6<1.5f
3';
The 3rd negative lens 4:1.4<n
4<1.6 ,-f ' <f
4' <-1.5f ', 2f
4' <R
7<2.5f
4', R
8<f
4';
Three lens that form the one or three balsaming lens 5 are respectively:
1.8<n
51<1.9,-3f’<f
51’<-4f’，0.1f
51’<R
9<0.2f
51’，R
10<0.2f
51’；
1.7<n
52<1.8,0.1f’<f
52’<0.5f’，f
52’<R
10<1.5f
52’，R
11<1.5f
52’；
1.6<n
53<1.8,-0.5f’<f
53’<-f’，0.5f
53’<R
11<f
53’，R
12<0.5f
52’；
The second positive lens 7:1.6<n
7<1.8,0.5f ' <f
7' <f ', f
7' <R
13<1.5f
7', R
14<1.5f
7';
The 4th negative lens 8:1.4<n
8<1.6 ,-3f ' <f
8' <-4f ', 0.1f
8' <R
15<0.5f
8', R
16<0.4f
8';
Three lens that form the two or three balsaming lens 9 are respectively:
1.6<n
91<1.8,-0.5f’<f
91’<-f’，2f
91’<R
17<3f
91’，R
18<f
91’；
1.4<n
92<1.6,0.2f’<f
92’<0.5f’，f
92’<R
18<1.5f
92’，R
19<f
92’；
1.6<n
93<1.7,-0.5f’<f
93’<-f’，0.1f
93’<R
19<0.5f
93’，R
20<1.2f
93’；
The 3rd positive lens 10:1.8<n
10<2.0, f ' <f
10' <1.5f ', 2f
10' <R
21<3f
10', R
22<1.5f
10';
The 5th negative lens 11:1.4<n
11<1.6 ,-2f ' <f
11' <-3f ', f
11' <R
23<1.5f
11', R
24<0.5f
11';
The 6th negative lens 12:1.6<n
12<1.8 ,-5f ' <f
12' <-8f ', 0.1f
12' <R
25<0.5f
12', R
26<0.2f
12';
The 4th positive lens 13:1.6<n
13<1.8,2f ' <f
13' <3f ', 2f
13' <R
27<3f
13', R
28<1.5f
13'.
Multispectral beam splitting system equivalent plate 14 adopts multispectral Amici prism group to realize.
The center distance of adjacent lens is followed successively by 23mm, 13.2mm, and 1.1mm, 5.1mm, 13.5mm, 0.4mm, 18.8mm, 54.1mm, 0.4mm, 63.7mm, 12mm and 5mm, optical system image planes diameter reaches 200.6mm.
The three-dimensional aviation measuring camera optical system of three linear arrays the utility model proposes is telecentric beam path in image space structure, according to visual field, optical system edge relative exposure, is the biquadratic relation of shooting angle cosine, and whole illuminance of image plane is splendid.In view of telecentric beam path in image space, serious mistake symmetry, optical system distortion can not be accomplished very little, the utility model optical system all has less distortion, distortion≤3% relatively, this can, in the three-dimensional aviation measuring camera geometry correction stage of three linear arrays, set up model and eliminate, to meet the requirement of photogrammetric measurement to mapping precision.
Table 1 has provided contrasting of the utility model and the Typical Foreign three-dimensional aviation measuring camera optical system indexs of three linear arrays.
The three-dimensional aviation measuring camera optical system of table 1 Typical Foreign three linear arrays leading indicator
* for comparing, in table, the three-dimensional aviation measuring camera of different three linear arrays all calculates ground pixel resolution GSD by unified 6000m flying height
* working field of view angle is different from the angle of view, and its numerical value depends on camera base-height ratio and the angle of view, is less than the angle of view
The utility model is particularly suitable for the three-dimensional aerial survey of wide visual field high resolving power three linear arrays field, to filling up China in the blank in the three-dimensional aerial survey of three linear arrays and remote sensing field, and makes it to reach advanced world standards, and has important realistic meaning.
Claims (4)
1. three-dimensional aviation measuring camera optical systems of the wide visual field image space heart far away three linear arrays, it is characterized in that: described optical system comprises the first negative lens (1) setting gradually along same optical axis, the second negative lens (2), the first positive lens (3), the 3rd negative lens (4), the one or three balsaming lens group (5), diaphragm (6), the second positive lens (7), the 4th negative lens (8), the two or three balsaming lens (9), the 3rd positive lens (10), the 5th negative lens (11), the 6th negative lens (12), the 4th positive lens (13), multispectral beam splitting system equivalent plate (14), wherein, the second positive lens (7), the 4th negative lens (8), the 3rd positive lens (10), the 5th negative lens (11), the 6th negative lens (12), the 4th positive lens (13), multispectral beam splitting system equivalent plate (14) forms rear lens group jointly, and diaphragm (6) is positioned at described rear lens group front focal plane place, the one or three described balsaming lens (5) adopts the structural shape of negative lens-positive lens-negative lens, and the two or three described balsaming lens (9) adopts the structural shape of negative lens-positive lens-negative lens.
2. three-dimensional aviation measuring camera optical systems of the wide visual field according to claim 1 image space heart far away three linear arrays, is characterized in that: wherein the parameter of each lens is as follows successively:
The first negative lens: 1.7<n
1<1.8 ,-f ' <f
1' <-1.5f ', f
1' <R
1<1.5f
1', R
2<0.5f
1';
The second negative lens: 1.4<n
2<1.6 ,-1.5f ' <f
2' <-2f ', 2f
2' <R
3<2.5f
2', R
4<0.5f
2';
The first positive lens: 1.8<n
3<2.0,1.5f ' <f
3' <2f ', 2f
3' <R
5<3f
3', R
6<1.5f
3';
The 3rd negative lens: 1.4<n
4<1.6 ,-f ' <f
4' <-1.5f ', 2f
4' <R
7<2.5f
4', R
8<f
4';
Three lens that form the one or three balsaming lens are respectively:
1.8<n
51<1.9,-3f’<f
51’<-4f’，0.1f
51’<R
9<0.2f
51’，R
10<0.2f
51’；
1.7<n
52<1.8,0.1f’<f
52’<0.5f’，f
52’<R
10<1.5f
52’，R
11<1.5f
52’；
1.6<n
53<1.8,-0.5f’<f
53’<-f’，0.5f
53’<R
11<f
53’，R
12<0.5f
52’；
The second positive lens: 1.6<n
7<1.8,0.5f ' <f
7' <f ', f
7' <R
13<1.5f
7', R
14<1.5f
7';
The 4th negative lens: 1.4<n
8<1.6 ,-3f ' <f
8' <-4f ', 0.1f
8' <R
15<0.5f
8', R
16<0.4f
8';
Three lens that form the two or three balsaming lens are respectively:
1.6<n
91<1.8,-0.5f’<f
91’<-f’，2f
91’<R
17<3f
91’，R
18<f
91’；
1.4<n
92<1.6,0.2f’<f
92’<0.5f’，f
92’<R
18<1.5f
92’，R
19<f
92’；
1.6<n
93<1.7,-0.5f’<f
93’<-f’，0.1f
93’<R
19<0.5f
93’，R
20<1.2f
93’；
The 3rd positive lens: 1.8<n
10<2.0, f ' <f
10' <1.5f ', 2f
10' <R
21<3f
10', R
22<1.5f
10';
The 5th negative lens: 1.4<n
11<1.6 ,-2f ' <f
11' <-3f ', f
11' <R
23<1.5f
11', R
24<0.5f
11';
The 6th negative lens: 1.6<n
12<1.8 ,-5f ' <f
12' <-8f ', 0.1f
12' <R
25<0.5f
12', R
26<0.2f
12';
The 4th positive lens: 1.6<n
13<1.8,2f ' <f
13' <3f ', 2f
13' <R
27<3f
13', R
28<1.5f
13'.
3. three-dimensional aviation measuring camera optical systems of the wide visual field according to claim 1 image space heart far away three linear arrays, it is characterized in that: the first negative lens is lanthanum flint glass LAF3, the second negative lens is special crown glass FK2, the first positive lens is ZLAF75A, the 3rd negative lens is FK2, three lens that form the one or three balsaming lens are respectively ZF52, ZBAF20 and TF3, the second positive lens is ZBAF3, the 4th negative lens is QK3, three lens that form the two or three balsaming lens are respectively F13, FK2 and TF3, the 3rd positive lens is ZLAF75A, the 5th negative lens is K9, the 6th negative lens is ZF6, the 4th positive lens is ZF88, multispectral beam splitting system equivalent plate is optical quartz glass JGS1.
4. the three-dimensional aviation measuring camera optical system of the wide visual field according to claim 1 image space heart three linear arrays far away, is characterized in that: described multispectral beam splitting system equivalent plate (14) is multispectral Amici prism group.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297924A (en) * | 2014-09-12 | 2015-01-21 | 上海卫星工程研究所 | Wide-spectrum and wide-field optical system |
| CN106030367A (en) * | 2014-07-09 | 2016-10-12 | 奥林巴斯株式会社 | Endoscope objective optical system |
| CN104297924B (en) * | 2014-09-12 | 2017-01-04 | 上海卫星工程研究所 | A kind of wide range, optical system with wide field of view |
-
2013
- 2013-09-30 CN CN201320622387.5U patent/CN203502657U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030367A (en) * | 2014-07-09 | 2016-10-12 | 奥林巴斯株式会社 | Endoscope objective optical system |
| CN106030367B (en) * | 2014-07-09 | 2019-04-23 | 奥林巴斯株式会社 | Endoscope objective optical system |
| CN104297924A (en) * | 2014-09-12 | 2015-01-21 | 上海卫星工程研究所 | Wide-spectrum and wide-field optical system |
| CN104297924B (en) * | 2014-09-12 | 2017-01-04 | 上海卫星工程研究所 | A kind of wide range, optical system with wide field of view |
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