CN106324812A - Lens assembly for shooting high-resolution pictures - Google Patents

Lens assembly for shooting high-resolution pictures Download PDF

Info

Publication number
CN106324812A
CN106324812A CN201510393473.7A CN201510393473A CN106324812A CN 106324812 A CN106324812 A CN 106324812A CN 201510393473 A CN201510393473 A CN 201510393473A CN 106324812 A CN106324812 A CN 106324812A
Authority
CN
China
Prior art keywords
lens
group
refractive index
imaging
focal length
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.)
Pending
Application number
CN201510393473.7A
Other languages
Chinese (zh)
Inventor
王斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Far Automation Equipment Manufacturing Co Ltd
Original Assignee
Tianjin Far Automation Equipment Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Far Automation Equipment Manufacturing Co Ltd filed Critical Tianjin Far Automation Equipment Manufacturing Co Ltd
Priority to CN201510393473.7A priority Critical patent/CN106324812A/en
Publication of CN106324812A publication Critical patent/CN106324812A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a lens assembly suitable for ultrahigh-resolution imaging. The lens assembly is composed of five imaging lenses and a filter (60); a first lens having a positive refractive index, a second lens (20) having a negative refractive index, a third lens (30) having a positive refractive index, a fourth crescent lens (40) having a negative refractive index, a fifth crescent lens (50) having a negative refractive index, and a filter (60) capable of filtering out infrared light are sequentially distributed from the object side to the image side; and the lens assembly satisfies the inequation that -3.0<f13/f35<-2.4, wherein f23 is the focal length of a lens formed by the first lens (10), the second lens (20) and the third lens (30), and f35 is the focal length of a lens formed by the third lens (30), the fourth lens (40) and the fifth lens (50). The lens assembly can improve the edge imaging ability, reduce various aberrations and improve MTF resolution, and therefore, the lens assembly can satisfy the imaging requirements of high-resolution imaging components.

Description

Shooting high-resolution pictures lens group
Technical field
The present invention relates to a kind of lens group, particularly relate to the camera lens that a kind of unmanned plane sensor obtains the high resolution picture of very-high solution, pass through mirror The optimization design of each lens parameter in head group, thus meet the imaging requirements of very-high solution photo.
Background technology
Prior art is difficult to realize bigger visual angle in narrow range for photographic head.And at present in the camera lens module of low latitude unmanned plane sensor Wide-angle lens to be used.Among these optics occur in and take photo by plane, because needing to realize observation imaging in the biggest scope, the most right Wide angular range has more preferable requirement.But current wide-angle lens group is difficult to meet above-mentioned Radix Rumicis requirement.One of them solution is to improve wide-angular field Angle, another solution is to improve the pixel quantity of image-forming component CCD or CMOS, utilizes high-altitude shooting to exchange higher visual angle for.By height Pixel image-forming component completes image acquisition.
Therefore the present invention is based on this class image-forming component CCD or the demand for development of CMOS front end photographic head, for existing lens group to high pixel Support ineffective shortcoming, the lens parameter in lens group is optimized and obtains the present invention.
Summary of the invention
A kind of shooting high-resolution pictures lens group, this lens group is made up of five imaging lens and optical filter 60.Wherein from thing direction to picture Direction respectively is first lens 10 with positive refracting power；Second lens 20 of negative index；There are the 3rd lens 30 of positive refracting power；Tool There are lunate 4th lens 40 of negative index；There are lunate 5th lens 50 of negative index；There is the optical filter G that can filter infrared light. Wherein this battery of lens meets following condition :-3.0 ＜ f13/f35＜-2.4.Wherein f23Referring to the first lens 10, the second lens 20, the 3rd lens 30 form The focal length of lens.And f35It is the 3rd lens 30 in lens group, the focal length of the lens of the 4th lens 40 and the combination of the 5th lens 50.
Especially, it is also possible to meet Nd4This Nd of ＞ 2.14Refer to the coefficient of refraction of the 4th lens 40.
Especially, it is also possible to meet Nd5＞ 1.5, this Nd5Refer to the coefficient of refraction of the 5th lens 50.
Accompanying drawing explanation
Fig. 1 is the optical texture of the lens group of the 1st embodiment of the present invention.
Fig. 2 is the longitudinal spherical aberration of the 1st embodiment of the present invention, astigmatism, distortion schematic diagram.
Fig. 3 is the optical texture of the lens group of the 2nd embodiment of the present invention.
Fig. 4 is the longitudinal spherical aberration of the 2nd embodiment of the present invention, astigmatism, distortion schematic diagram.
Fig. 5 is the optical texture of the lens group of the 3rd embodiment of the present invention.
Fig. 6 is the longitudinal spherical aberration of the 3rd embodiment of the present invention, astigmatism, distortion schematic diagram.
Detailed description of the invention
Now with reference to accompanying drawing, exemplary enforcement is just described in detail.For the purpose of simplifying the description, identical or equivalent parts will have identical accompanying drawing Labelling, and will not be repeated again its explanation.
Detailed content for the present invention and technology explanation, existing be described further with embodiment, however, it should be noted that such embodiment only as a example by Show purposes of discussion, and should not be construed the restriction that the present invention is implemented.
The saturating head group of following embodiment can improve the imaging capability at edge, reduces various aberration, improves MTF resolution.Such that it is able to meet height Pixel image-forming component imaging needs.
First embodiment:
With reference to shown in Fig. 1-2, the optical structure chart of the lens group of the present invention, this lens group is made up of five imaging len 10-50 and optical filter 60. Wherein to respectively being first lens 10 with positive refracting power from thing direction to image space；Second lens 20 of negative index；There is positive refracting power The 3rd lens 30；There are lunate 4th lens 40 of negative index；There are lunate 5th lens 50 of negative index；Have and can filter Optical filter 60 except infrared light.Wherein this battery of lens meets following condition :-3.0 ＜ f13/f35＜-2.4.Wherein f23Referring to the first lens 10, second is saturating Mirror 20, the focal length of the lens of the 3rd lens 30 composition.And f35It is the 3rd lens 30 in lens group, the 4th lens 40 and 50 groups of the 5th lens The focal length of the lens closed.Especially, it is also possible to meet Nd4＞ 2.1, this Nd4Refer to the coefficient of refraction of the 4th lens 40.Especially, it is also possible to meet Nd5＞ 1.5, this Nd5Refer to the coefficient of refraction of the 5th lens 50.The design parameter of each lens can be found in table 1:
Surface Radius of curvature (R) Thickness interval (d) Refractive index Nd Abbe number Vd
1 1.2104 0.6870 1.514600 57.17778
2 -3.981 0
ST ∞ 0.0810
4 16.7215 0.2500 1.80634 33.2676
5 1.7508 0.2600
6 1.8091 0.2145 1.83 57.349
7 ∞ 0.5502
8 -5.601 1.2502 2.290 28
9 15.308 2.7604
10 -6.0219 0.0478 1.572 57.901
11 1.4227 0.6091
12 ∞ 0.4000 1.71 69
13 ∞ 0.5000
Table 1
In above-mentioned wide-angle lens group, aspheric spherical surface type meets following equation:
z = c h 2 1 + [ 1 - ( k + 1 ) c 2 h 2 ] 0.5 + A h 4 + B h 6 + C h 8 + D h 10 + E h 12 + F h 14 + . . . . . .
Wherein z is the positional value making reference along optical axis direction in the position that height is h with surface vertices；K is tapering amount；C is the inverse of radius of curvature: A, B, C, D, E, F ... for order aspherical coefficients.
The concrete numerical value of the aspheric surface quadratic surface coefficient of the most each eyeglass is as follows:
Lens face K A B C D E F
1 -0.1068 0.061902 -0.40228 -0.0744 -0.01411 -0.04832 0
2 -82.184 0.336421 -0.24233 -0.02399 -0.32169 -0.43348 0
4 2.24028 2.251092 20.27906 3.3006 10.98332 -0.09376 0
5 1.03729 -3.984 1.299532 0.110287 0 0.250126 -0.3018
6 -5.141 9.042032 -0.09713 0.021423 0 4.300121 -5.9347
7 -2.232 -0.36928 -0.02497 -1.98689 -2.28272 0.0103 0
8 -3.2801 -1.09683 -0.42769 0.03857 -4.39226 -0.02864 0
9 18.2828 -0.89682 -0.00401 0.008506 -0.04688 0 0
10 -2.9020 0.013 -0.00401 -3.2645 -0.98128 -0.00724 0
11 -23.1902 4.12944 0.012684 0.38329 -0.03892 -0.99203 -0.0213
Table 2
Second embodiment:
Shown in reference Fig. 3-4, the optical structure chart of the wide-angle lens group of the present invention, the optical structure chart of the wide-angle lens group of the present invention, this wide-angle lens Head group is made up of five imaging len 10-50 and optical filter 60.Wherein from thing direction to image space, there is the first saturating of positive refracting power to respectively being Mirror 10；Second lens 20 of negative index；There are the 3rd lens 30 of positive refracting power；There are lunate 4th lens 40 of negative index；Tool There are lunate 5th lens 50 of negative index；There is the optical filter 60 that can filter infrared light.Wherein this battery of lens meets following condition: -3.0 ＜ f13/f35＜-2.4.Wherein f23Refer to the first lens 10, the second lens 20, the focal length of the lens of the 3rd lens 30 composition.And f35It it is camera lens 3rd lens 30 in group, the focal length of the lens of the 4th lens 40 and the combination of the 5th lens 50.Especially, it is also possible to meet Nd4＞ 2.1, this Nd4 Refer to the coefficient of refraction of the 4th lens 40.Especially, it is also possible to meet Nd5＞ 1.5, this Nd5Refer to the coefficient of refraction of the 5th lens 505.Each The design parameter of mirror can be found in table 3:
Surface Radius of curvature (R) Thickness interval (d) Refractive index Nd Abbe number Vd
1 1.20103 0.6870 1.514600 57.17778
2 -3.981 0
ST ∞ 0.0810
4 16.7215 0.2505 1.80634 33.2676
5 1.5028 0.2700
6 1.8911 0.2038 1.81 57.104
7 16.404 0.5588
8 -5.694 1.2519 2.290 28.6
9 15.308 2.7604
10 -6.0219 0.0478 1.592 57.884
11 1.4227 0.6091
12 ∞ 0.4000 1.71 69.3
13 ∞ 0.5000
Table 3
The concrete numerical value of the aspheric surface quadratic surface coefficient of the most each eyeglass is as follows:
Lens face K A B C D E F
1 -0.10386 0.064842 -0.39934 -0.07146 -0.01117 -0.04538 0
2 -82.1811 0.339361 -0.23939 -0.02105 -0.31875 -0.43054 0
4 2.24322 2.254032 20.282 3.30354 10.98626 -0.09082 0
5 1.04023 -3.98106 1.302472 0.113227 0 0.253066 -0.4831
6 -5.13806 9.044972 -0.09419 0.024363 0 4.303061 -5.1303
7 -2.22906 -0.36634 -0.02203 -1.98395 -2.27978 0.01324 0
8 -3.27716 -1.09389 -0.42475 0.04151 -4.38932 -0.0257 0
9 18.28574 -0.89388 -0.00107 0.011446 -0.04394 0.00294 0
10 -2.89906 0.01594 -0.00107 -3.26156 -0.97834 -0.0043 0
11 -23.1873 4.13238 0.015624 0.38623 -0.03598 -0.98909 0
Table 4
3rd embodiment:
With reference to shown in Fig. 5-6, the optical structure chart of the lens group of the present invention, this lens group is made up of five imaging len 10-50 and optical filter 60. Wherein to respectively being first lens 10 with positive refracting power from thing direction to image space；Second lens 20 of negative index；There is positive refracting power The 3rd lens 30；There are lunate 4th lens 40 of negative index；There are lunate 5th lens 50 of negative index；Have and can filter Optical filter 60 except infrared light.Wherein this battery of lens meets following condition :-3.0 ＜ f13/f35＜-2.4.Wherein f23Referring to the first lens 10, second is saturating Mirror 20, the focal length of the lens of the 3rd lens 30 composition.And f35It is the 3rd lens 30 in lens group, the 4th lens 40 and 50 groups of the 5th lens The focal length of the lens closed.Especially, it is also possible to meet Nd4＞ 2.1, this Nd4Refer to the coefficient of refraction of the 4th lens 40.Especially, it is also possible to meet Nd5＞ 1.5, this Nd5Refer to the coefficient of refraction of the 5th lens 50.The design parameter of each lens can be found in table 5:
Surface Radius of curvature (R) Thickness interval (d) Refractive index Nd Abbe number Vd
1 1.26088 0.4390 1.55900 58.4378
2 -3.301 0
ST ∞ 0.0810
4 16.9105 0.3570 1.80634 33.2676
5 1.5534 0.2900
6 1.9130 0.2458 1.81 57.244
7 14.602 0.3550
8 -5.107 1.6890 2.250 30.4
9 15.295 2.231
10 -6.0219 0.0478 1.623 58.740
11 1.4227 0.6091
12 ∞ 0.4000 1.63 62.17
13 ∞ 0.5000
Table 5
The concrete numerical value of the aspheric surface quadratic surface coefficient of the most each eyeglass is as follows:
Lens face K A B C D E F
1 -0.10196 0.060542 -0.40364 -0.07576 -0.01547 0.174639 0
2 -82.1792 0.335061 -0.24369 -0.02535 -0.32305 -0.21052 0
4 2.24512 2.249732 20.2777 3.29924 10.98196 0.129199 0
5 1.04213 -3.98536 1.298172 0.108927 0 0.473085 -0.61903
6 -5.13616 9.040672 -0.09849 0.020063 0 4.52308 -4.28693
7 -2.22716 -0.37064 -0.02633 -1.98825 -2.28408 0.233259 0
8 -3.27526 -1.09819 -0.42905 0.03721 -4.39362 0.194319 0
9 18.28764 -0.89818 -0.00537 0.007146 -0.04824 0.222959 0
10 -2.89716 0.01164 -0.00537 -3.26586 -0.98264 0.215719 0
11 -23.3973 4.4438 0.0384 0.38710 -0.0488 -1.1290 0
Table 6

Claims (3)

1. a shooting high-resolution pictures lens group, this lens group is made up of, wherein from thing direction to image space five imaging lens and optical filter (60) To respectively being first lens (10) with positive refracting power；Second lens (20) of negative index；There are the 3rd lens (30) of positive refracting power；Tool There are lunate 4th lens (40) of negative index；There are lunate 5th lens (50) of negative index；There is the optical filter that can filter infrared light (60), wherein this lens group meets following condition :-3.0 ＜ f13/f35＜-2.4.Wherein f23Refer to the first lens (10), the second lens (20), the 3rd The focal length of the lens that lens (30) form, and f35It is the 3rd lens (30) in lens group, the 4th lens (40) and the 5th lens (50) group The focal length of the lens closed.
2. lens group as claimed in claim 1, also meets Nd4＞ 2.1, this Nd4Refer to the coefficient of refraction of the 4th lens (40).
3. lens group as claimed in claim 1, also meets Nd5＞ 1.5, this Nd5Refer to the coefficient of refraction of the 5th lens (50).
CN201510393473.7A 2015-07-07 2015-07-07 Lens assembly for shooting high-resolution pictures Pending CN106324812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510393473.7A CN106324812A (en) 2015-07-07 2015-07-07 Lens assembly for shooting high-resolution pictures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510393473.7A CN106324812A (en) 2015-07-07 2015-07-07 Lens assembly for shooting high-resolution pictures

Publications (1)

Publication Number Publication Date
CN106324812A true CN106324812A (en) 2017-01-11

Family

ID=57728381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510393473.7A Pending CN106324812A (en) 2015-07-07 2015-07-07 Lens assembly for shooting high-resolution pictures

Country Status (1)

Country Link
CN (1) CN106324812A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101046542A (en) * 2006-03-28 2007-10-03 富士能株式会社 Imaging lens

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101046542A (en) * 2006-03-28 2007-10-03 富士能株式会社 Imaging lens

Similar Documents

Publication Publication Date Title
CN206946078U (en) Optical imaging system
JP5620607B2 (en) Imaging lens and imaging apparatus provided with the same
CN103529538B (en) Image lens assembly
CN103502868B (en) Imaging lens system and the camera head being provided with this imaging lens system
CN105974561A (en) Wide-angle image photographing lens
CN103984079B (en) Wide-view-angle camera lens group
CN107272142A (en) Optical imaging system
CN106772935B (en) Lens system and fixed-focus lens
CN104793316A (en) Wide angle lens system
CN102608731A (en) Optical lens group for photography
US20100208363A1 (en) Lens system
KR101089938B1 (en) optical system for super wide angle
CN110361830B (en) Optical lens
US20170192201A1 (en) Optical lens system with a wide field of view
CN105717618A (en) Lens module
CN103926674A (en) Miniaturized lens
CN108351495B (en) Imaging lens
CN105511061A (en) Super-wide high-definition optical lens
CN205384402U (en) Large aperture wide angle zoom
CN106154523B (en) Zoom lens
CN102854611A (en) Microminiature imaging lens
CN206331171U (en) A kind of lens combination and tight shot
CN102466857B (en) Imaging lens
CN104749749A (en) Photographic lens optical system
JP3137570U (en) An imaging lens consisting of three lenses

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
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170111

WD01 Invention patent application deemed withdrawn after publication