CN106125274A - There is the wide spectrum big target surface high definition zoom lens of overlength focal length - Google Patents
There is the wide spectrum big target surface high definition zoom lens of overlength focal length Download PDFInfo
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- CN106125274A CN106125274A CN201610678438.4A CN201610678438A CN106125274A CN 106125274 A CN106125274 A CN 106125274A CN 201610678438 A CN201610678438 A CN 201610678438A CN 106125274 A CN106125274 A CN 106125274A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/173—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+
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- 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
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Abstract
The invention discloses the wide spectrum big target surface high definition zoom lens with overlength focal length, the first fixed lens group of positive light coke, the Zoom lens group of negative power, the offset lens group of positive light coke, iris, the second fixed lens group of positive light coke and color filter film it is provided with along light direction；First fixed lens group be sequentially provided with first group of first positive crescent moon lens, first group bear crescent moon lens, first group of planoconvex lens, first group of biconcave lens, first group of second positive crescent moon lens；First group of first positive crescent moon lens, first group of second positive crescent moon lens are all made with ED material；Zoom lens group be sequentially provided with zoom group bear crescent moon lens, glued group touched by zoom group biconcave lens and zoom group biconvex lens；Offset lens group be sequentially provided with compensation group biconvex lens, born by compensation group crescent moon lens and compensation group biconvex lens contiguity glued group；The present invention can realize overlength focal length and big target surface high-resolution imaging with small size, and aberration correcting capability is strong.
Description
Technical field
The present invention relates to field of photoelectric technology, especially there is the wide spectrum big target surface high definition zoom lens of overlength focal length.
Background technology
Along with the development of science and technology, imageing sensor pixel dimension constantly reduces, and its characteristic frequency improves constantly, user
The image quality of optical system was also developed into the identification to target detail and cognition by the original simple viewing to target；Simultaneously
The complication of observing environment, increasing etc. of user's observation requirements all promotes optical imaging system constantly to wide spectrum, big target surface, height
The directions such as resolution, miniaturization, focus adjustable are developed.
When zoom lens is applied to territory, wide spectral range at present, aberration especially second order spectrum correction difficulty on axle；Hang down simultaneously
Big especially chromatic longitudiinal aberration, the distortion etc. of axial aberration limits camera lens application in big target surface system so that zoom lens is differentiated
Rate is low, difficult adaptive with high-definition camera；And zoom lens long-focus and system length, the contradiction of volumetric constraint so that
The design of long-focus width spectrum high definition zoom lens has difficulties.
Solving the problems referred to above is the purpose of the present invention.
Summary of the invention
The present invention proposes the wide spectrum big target surface high definition zoom lens with overlength focal length, can realize overlength with small size burnt
Away from and big target surface high-resolution imaging, and aberration correcting capability is strong.
The present invention is by the following technical solutions.
Having the wide spectrum big target surface high definition zoom lens of overlength focal length, described camera lens light curb light direction is provided with
Focal power be positive the first fixed lens group, focal power be negative Zoom lens group, focal power be positive offset lens group, variable
Diaphragm, focal power is the second positive fixed lens group and color filter film.
Described first fixed lens group be sequentially provided with on light direction first group of first positive crescent moon lens, first group
Negative crescent moon lens, first group of planoconvex lens, first group of biconcave lens, first group of second positive crescent moon lens；Described first group first
Positive crescent moon lens, first group of second positive crescent moon lens are all made with ED material.
Described Zoom lens group is sequentially provided with zoom group on light direction and bears crescent moon lens, saturating by zoom group concave-concave
Mirror and zoom group biconvex lens contiguity glued group.
Described offset lens group is sequentially provided with compensation group biconvex lens on light direction, to be born crescent moon by compensation group saturating
Mirror and compensation group biconvex lens contiguity glued group.
Described second fixed lens group is sequentially provided with by second group of positive crescent moon lens and second group on light direction
Glued group of first negative crescent moon lens contiguity, second group of second negative crescent moon lens, by second group of biconvex lens and second group the 3rd
Glued group of negative crescent moon lens contiguity.
Along light direction, the airspace between described first fixed lens group and Zoom lens group be 182.16～
209.63mm, the airspace between Zoom lens group and offset lens group is 3.85～64.78mm, offset lens group and second
Airspace between fixed lens group is 2.80～36.27mm.
In described first fixed lens group, first group of first positive crescent moon lens and first group of air born between crescent moon lens
Interval is 116.17mm, and first group of airspace born between crescent moon lens and first group of planoconvex lens is 1.77mm, first group
Airspace between planoconvex lens and first group of biconcave lens is 1.02mm, first group of biconcave lens and first group of second first month of the lunar year
Airspace between tooth lens is 0.65mm.
In described Zoom lens group, it is close with by zoom group biconcave lens and zoom group biconvex lens that zoom group bears crescent moon lens
The airspace between glued group being connected into is 3.39mm.
In described offset lens group, compensation group biconvex lens with born crescent moon lens by compensation group and compensation group biconvex lens is close
The airspace between glued group being connected into is 0.21mm.
In described second fixed lens group, by second group of positive crescent moon lens and the glue of second group of first negative crescent moon lens contiguity
Airspace between charge-coupled and second group of second negative crescent moon lens is 78.49mm, second group of second negative crescent moon lens with by the
Airspace between two groups of biconvex lens and second group of the 3rd negative crescent moon lens touch glued group is 27.74mm.
Described first group of first positive crescent moon lens, first group of second positive crescent moon lens all ultralow colors with the trade mark as H-FK61
Dispersion optical glass molding.
The transparent wavelength range of described color filter film is 500～750nm.
When Zoom lens group is movable on optical path direction, offset lens group is simultaneously to the motion side of Zoom lens group
To movement, constant to realize image planes while lens zoom.
Along light direction, the assembling structure of described camera lens includes focus pack, connecting cylinder, zoom assembly, convex successively
Wheel assembly, compensation assembly, iris assembly, rear fixation kit, camera assembly；Described first fixed lens group is located at focusing
In assembly, described Zoom lens is mounted in zoom assembly, and described offset lens is mounted in compensation assembly, and described second fixes
Battery of lens and color filter film are located in rear fixation kit, and the described built-in iris of iris assembly, camera lens outer wall includes gas
Close structure.
The focal power of reasonable distribution each constituent element of camera lens of the present invention, it is achieved camera lens has longer under less length dimension
Focal length；Camera lens overcomes the shortcoming that the intrinsic vertical axial aberration of big target surface imaging system is big, simultaneously by light path initiating terminal
First fixed lens group uses ED material H-FK61, effectively corrects second order spectrum during camera lens width light spectrum image-forming
Deng aberration, camera lens resolution while having big target surface is made to have had significant raising.
In the present invention, when Zoom lens group is movable on optical path direction, offset lens group is simultaneously to Zoom lens
The direction of motion of group moves, constant to realize image planes while lens zoom；This design can simplify in four battery of lens
Focal power distribution design, it is easy to realize bigger zoom ratio in small size camera lens.
In the present invention, the transparent wavelength range of described color filter film is 500～750nm；This design light to specific wavelength
Transmitance is optimized, and can ensure illuminance of image plane while reducing aberration.
Accompanying drawing explanation
The present invention is described in more detail with detailed description of the invention below in conjunction with the accompanying drawings:
Accompanying drawing 1 is embodiment of the present invention light channel structure schematic diagram；
Accompanying drawing 2 is MTF figure during short Jiao；
Accompanying drawing 3 is MTF figure during focal length；
Accompanying drawing 4 is the total schematic diagram of structure；
Accompanying drawing 5 is the schematic diagram of focusing component；
Accompanying drawing 5a is the schematic perspective view of focusing component；
Accompanying drawing 6 is zoom assembly and compensates the schematic diagram at assembly；
Accompanying drawing 6a is zoom assembly and the schematic diagram compensated on the other direction at assembly；
Accompanying drawing 7 is the schematic diagram at iris assembly；
Accompanying drawing 7a is the schematic diagram on the other direction at iris assembly；
Accompanying drawing 8 is airtight construction figure；
In figure: 1-the first fixed lens group；2-Zoom lens group；3-offset lens group；4-iris；5-second fixes lens
Group；6-color filter film；
The positive crescent moon lens of 101-first group first；102-first group bears crescent moon lens；First group of planoconvex lens of 103-；104-first
Group biconcave lens；The positive crescent moon lens of 105-first group second；201-zoom group bears crescent moon lens；202-zoom group biconcave lens；
203-zoom group biconvex lens；301-compensation group biconvex lens；302-compensation group bears crescent moon lens；303-compensation group lenticular
Mirror；The positive crescent moon lens of 401-second group；The negative crescent moon lens of 402-second group first；The negative crescent moon lens of 403-second group second；
Second group of biconvex lens of 404-；Second group of the 3rd negative crescent moon lens of 405-；
The airtight assembly of 41-；42-focusing component；43-connecting cylinder；44-zoom assembly；45-cam pack；46-compensates assembly；
47-iris assembly；48-rear fixation kit；49-camera assembly；
51-A sheet trim ring；52-A sheet lens barrel；53-eyeglass A1；Lens barrel is organized before 54-；55-eyeglass A2；56-focusing cam trim ring；
57-focusing cam guide pin；58-focuses roller 1；59-focuses lead ring；510-focuses roller 2；511-B sheet trim ring；
512-eyeglass A3；513-CD spacer ring；51-focusing cam；Jiao's 515-motor gear；516-focuses electric machine support；517-adjusts
Burnt body tube；518-focuses motor；519-BE lens barrel；520-DE spacer ring, 521-eyeglass A4；522-eyeglass A5；523-E sheet pressure
Circle；524-focuses limited support；525-microswitch；526-focuses retaining screw；527-steel ball；
61-zoom motor rack；62-body tube；63-zoom cam；64-zoom motor gear；65-zoom roller 1；66-zoom
Lead ring；67-zoom guide pin；68-zoom motor；69-zoom roller 2；610-zoom balladeur train；611-eyeglass C1；612-compensates sliding
Frame；613-compensates pad；614-compensates lens barrel；615-bearing pressure ring；616-zoom cam trim ring；617-compensates trim ring；618-
Eyeglass C2；619-eyeglass C3；620-IJ spacer ring；621-zoom guide pin；622-zoom roller 1；623-zoom lead ring；624-becomes
Times roller 2；625-zoom retaining screw；626-steel ball；627-zoom trim ring；628-eyeglass B1；629-eyeglass B2；630-eyeglass B3；
631-zoom lens barrel；632-zoom pad；633-microswitch；634-zoom limited support；635-zoom potentiometer support；
636-zoom potentiometer；637-zoom potentiometer gear；
71-diaphragm seat；72-hexagon socket cap head screw；73-diaphragm rotating ring trim ring；74-aperture setting ring；75-diaphragm dials nail；
76-aperture setting ring trim ring；77-diaphragm trim ring；78-eyeglass E2；79-eyeglass E1；710-diaphragm rotating ring；711-diaphragm sheet；
712-auxiliary support plate；713-diaphragm potentiometer；714-diaphragm potentiometer gear；715-Iris motor；716-Iris motor tooth
Wheel；717-Iris motor frame；718-diaphragm limited support；719-microswitch；720-diaphragm retaining screw；
81-shade；Screening glass trim ring before 82-；Screening glass before 83-；84-sealing ring；85-front shroud cylinder；Hexagonal cylindrical head in 86-
Screw；87-sealing ring；Cover cylinder in 88-；89-sealing ring；810-hexagon socket cap head screw；811-back cover cylinder；812-patches
Part；813-light filter trim ring；814-light filter；815-sealing ring；816-valve.
Detailed description of the invention
As Fig. 1,2,3,4,5,5a, 6,6a, 7,7a, shown in 8, there is the wide spectrum big target surface high definition varifocal mirror of overlength focal length
Head, described camera lens light curb light direction be provided with focal power be positive the first fixed lens group 1, focal power be negative zoom
Battery of lens 2, focal power are positive offset lens group 3, iris 4, and focal power is the second positive fixed lens group 5 and colour filter
Sheet 6.
Described first fixed lens group 1 be sequentially provided with on light direction first group of first positive crescent moon lens 101,
Bear crescent moon lens 104, first group of second positive crescent moon lens of 103, first group of biconcave lens of 102, first group of planoconvex lens for one group
105；Described 101, first group of second positive crescent moon lens 105 of first group of first positive crescent moon lens are all made with ED material.
Described Zoom lens group 2 is sequentially provided with zoom group on light direction and bears crescent moon lens 201, by zoom group pair
Concavees lens 202 and zoom group biconvex lens 203 contiguity glued group.
Described offset lens group 3 is sequentially provided with compensation group biconvex lens 301 on light direction, is born the moon by compensation group
Tooth lens 302 and compensation group biconvex lens 303 contiguity glued group.
Described second fixed lens group 5 is sequentially provided with by second group of positive crescent moon lens 401 and on light direction
Glued group of two group of first negative crescent moon lens 402 contiguity, second group of second negative crescent moon lens 403, by second group of biconvex lens 404
With second group of the 3rd negative crescent moon lens 405 contiguity glued group.
Along light direction, the airspace between described first fixed lens group 1 and Zoom lens group 2 is 182.16
～209.63mm, the airspace between Zoom lens group 2 and offset lens group 3 is 3.85～64.78mm, offset lens group 3
And the airspace between the second fixed lens group 5 is 2.80～36.27mm.
In described first fixed lens group 1, first group of first positive crescent moon lens 101 and first group bear crescent moon lens 102 it
Between airspace be 116.17mm, first group of airspace born between crescent moon lens 102 and first group of planoconvex lens 103 is
1.77mm, the airspace between first group of planoconvex lens 103 and first group of biconcave lens 104 is 1.02mm, first group of concave-concave
Airspace between lens 104 and first group of second positive crescent moon lens 105 is 0.65mm.
In described Zoom lens group 2, it is double with by zoom group biconcave lens 202 and zoom group that zoom group bears crescent moon lens 201
Airspace between convex lens 203 touch glued group is 3.39mm.
In described offset lens group 3, compensation group biconvex lens 301 bears crescent moon lens 302 and compensation group pair with by compensation group
Airspace between convex lens 303 touch glued group is 0.21mm.
In described second fixed lens group 5, by second group of positive crescent moon lens 401 and second group of first negative crescent moon lens 402
Airspace between glued group and second group second negative crescent moon lens 403 of contiguity is 78.49mm, second group of second negative crescent moon
Air between lens 403 with glued group touched by second group of biconvex lens 404 and second group of the 3rd negative crescent moon lens 405
Interval is 27.74mm.
Described 101, first group of second positive crescent moon lens 105 of first group of first positive crescent moon lens are all with the trade mark as H-FK61
ED optical glass forming.
The transparent wavelength range of described color filter film 6 is 500～750nm.
When Zoom lens group 2 is movable on optical path direction, offset lens group 3 is simultaneously to the motion of Zoom lens group
Direction is moved, constant to realize image planes while lens zoom.
Along light direction, the assembling structure of described camera lens includes focus pack 42, connecting cylinder 43, zoom assembly successively
44, cam pack 45, compensation assembly 46, iris assembly 47, rear fixation kit 48, camera assembly 49；Described first is solid
Fix-focus lens is mounted in focus pack 42, and described Zoom lens is mounted in zoom assembly 44, and described offset lens is mounted on benefit
Repaying in assembly 46, described second fixed lens group and color filter film are located in rear fixation kit 48, described iris assembly 47
Built-in iris 4, camera lens outer wall includes airtight construction 41.
As shown in Fig. 5,5a, described focus pack 42 is to be disposed by first group of first positive crescent moon lens 101 with A sheet trim ring 51
In A sheet microscope base 52, bear crescent moon lens 102 with B sheet trim ring 511 by first group and be placed in BE lens barrel 519, with E sheet trim ring 523
104, first group of second positive crescent moon lens 105 of 103, first group of biconcave lens of first group of planoconvex lens are placed in BE lens barrel respectively
In 519, between first group of planoconvex lens 103 and first group of biconcave lens 104, it is provided with CD spacer ring 513, first group of biconcave lens 104
And being provided with DE spacer ring 520 between first group of second positive crescent moon lens 105, A sheet microscope base 52 and BE lens barrel 519 are threaded connection peace
In being placed in front group of lens barrel 54 and by three 120 uniform linear skewed slots, with focusing guide pin 57 and focusing roller 1 58, focusing
The focusing guide pin component placement that lead ring 59, focusing roller 2 510 form is on focusing body tube 517.In figure focus motor 518,
Focusing body tube 517, microswitch 525 form Power focus mechanism, and described focusing motor 518 is pacified by focusing motor rack 516
Putting on focusing body tube 517, described microswitch 525 is placed on focusing body tube 517 by focusing limited support 524,
Precision machined three 120 uniform linear skewed slots are offered, with focusing guide pin assembly and focusing on described focusing cam 514
Body tube 517 links together, and focusing gear 515 engages with the gear on focusing cam 514, when focusing motor 518 energising turns
Dynamic, drive focusing cam 514 to rotate by focusing gear 515, limited by the straight trough on focusing body tube 517, front group of lens barrel
54 rotation limited thus only done the linear motion in straight trough, thus realize the focusing function to far and near target.Focusing is led
Nail 526 is placed on focusing cam 514, follows the rotation of focusing cam 514, by microswitch 525 and focusing guide pin 526
Focusing cam 514 is played the spacing of corner and protective effect by common effect.
As shown in Fig. 6,6a, described zoom lens barrel 631 is placed on zoom balladeur train 610 composition zoom group by attachment screw
Part 44；Compensate lens barrel 614 and be placed in zoom balladeur train 610 described in composition compensation assembly 46. on compensation balladeur train 612 by attachment screw
Being placed on body tube 62 by grinding with body tube 62 to coordinate with compensating balladeur train 614, zoom cam 63 is placed in by steel ball 626
Body tube 62 forms rolling bearing, bearing pressure ring 615 and zoom cam trim ring 616 lock.Described zoom cam 63 presses optics
Requirement processing zoom, the compensating curve groove of zoom motion equation, respectively by zoom guide pin assembly and compensation guide pin assembly zoom
Cam 63 links together with zoom balladeur train 610, compensation balladeur train 614.Described zoom guide pin assembly and compensation guide pin assembly are by becoming
Times roller 1 65 and 622, zoom lead ring 66 and 623, zoom guide pin 67 and 621, zoom roller 2 68 and 624 composition.Described change
Times motor 68, zoom potentiometer 636, microswitch 633 form power zoom mechanism, and described zoom motor 68 is by zoom motor
Support 61 is placed on body tube 62, and described zoom potentiometer 636 is placed in body tube 62 by zoom potentiometer support 635
On, described microswitch 633 is placed on body tube 62 by zoom limit switch frame 634.Zoom motor gear 64 and zoom
Cam 63 engages, and when zoom motor 68 rotor does positive and negative rotary motion is, drives zoom cam 63 to do corresponding rotation, by becoming
Again, compensating curve groove and zoom guide pin assembly, compensation guide pin assembly drive zoom balladeur train 610, compensation balladeur train 614 are by zoom, benefit
The mode repaying curved groove is moved, the work that two straight troughs on body tube 62 play and limit zoom guide pin assembly, compensate guide pin assembly
With, and make zoom balladeur train 610, the rotary motion of compensation balladeur train 614 become linear motion.Strict control zoom guide pin assembly and benefit
Repay the fit clearance between the straight-line groove on guide pin assembly and the curved groove of zoom cam 63 and body tube 62, it is ensured that zoom assembly
44 slide steadily, without cassette tape with compensating assembly 46.So rotated by motor and realize zoom assembly 44 and compensate assembly 46 by change
The burnt equation of motion requires the linear motion done back and forth, thus realizes the consecutive variations function of system focal.When the focal length of system is sent out
During changing, zoom potentiometer gear 637 engages with zoom cam 63, synchronization there is relative rotation with zoom cam 63,
The resistance of potentiometer changes, and can be obtained the changing value of potentiometer by suitable sample circuit, and pass to control centre,
Thus realize the display of zoom level；Otherwise, provide respective resistance values order by control centre, the real-time control of focal length can be realized.
Microswitch 633, by zoom retaining screw 625 cooperating, plays the spacing and protective effect of system in zooming procedure.
As shown in Fig. 7,7a, shown iris mechanism 47 includes Iris motor 715, diaphragm potentiometer 713 and for controlling
The microswitch 719 of diaphragm openings of sizes position processed forms, and shown microswitch 719 is placed in by diaphragm limited support 718
On diaphragm seat, described diaphragm sheet 711 is placed on diaphragm rotating ring 710 and diaphragm seat 71 by rivet interlacement, described Iris motor
715 are placed on diaphragm seat 71 by Iris motor frame 717, equipped with Iris motor gear 716 on described Iris motor 515, logical
Crossing and drive aperture setting ring 74 to rotate after engaging with aperture setting ring 74 gear, described aperture setting ring 74 is by aperture setting ring pressure
Circle 75 is locked on diaphragm seat 71, and described aperture setting ring 74 dials nail 75 drive by the diaphragm being placed on diaphragm rotating ring 710
Diaphragm rotating ring 710 rotates, and described diaphragm rotating ring 710 is locked in diaphragm seat 71 by diaphragm rotating ring trim ring 73, described diaphragm rotating ring
710 drive diaphragm sheets 711 rotate thus control the change of aperture openings size, it is achieved the change of Electronic control aperture size.Institute
Show that diaphragm potentiometer gear 714 engages with Iris motor gear 716, when aperture changes, make diaphragm potentiometer 713 with diaphragm electricity
The rotation of machine 715 produces corresponding rotation, and potentiometer resistance occurs corresponding change, can be taken out by suitable sample circuit
The changing value of corresponding potentiometer, and pass to control centre, thus realize the display of stop opening size；Otherwise, in controlling
The heart provides corresponding resistance order, can realize the real-time control of the aperture of the diaphragm.
As shown in Figure 8, described airtight assembly 41 is made up of front shroud cylinder 85, middle cover cylinder 88, back cover cylinder 811, and camera lens installs
Pour nitrogen by valve 816 in inside after one-tenth, be provided with air channel at Large Aperture Lenses with the place of cooperation of lens barrel and allow gas to more
Comprehensively enter inside camera lens.Front shroud cylinder 85 is locked on middle cover cylinder 88 by hexagon socket cap head screw 86, covers in junction
Cylinder 88 is provided with seal groove and is placed into sealing ring 87, and back cover cylinder 811 is locked at middle cover cylinder 88 by hexagon socket cap head screw 810
On, junction is provided with seal groove and is placed into sealing ring 89, and whole airtight assembly 41 front end is placed in front shroud cylinder by front screening glass 83
In, and be provided with seal groove between the two and be placed into sealing ring 84, front screening glass 83 is locked at front shroud cylinder by front screening glass trim ring 82
In 85, airtight assembly 41 rear end is provided with light filter 814 and is provided with seal groove between back cover cylinder 811 and light filter 814, inserts sealing
Rear screening glass 815 is lock onto in back cover cylinder, so that whole airtight assembly 41 is comprehensive close by circle 815 by light filter trim ring 814
Envelope, plays airtight effect.
The optical index of the present embodiment is characterized as:
Focal length: f 'min=392mm, f 'max=1210mm；
Relative aperture D/ f ': be better than 1/7 during the shortest Jiao, be better than 1/8 during focal length；
ω=0.56 °, horizontal field of view angle 2～11.212 °；
Optical texture length ∑ L≤640mm；
Zoom stroke≤27.5mm；
During resolution of lens: f '≤800mm, MTF >=0.39,0 ° of visual field@100lp/mm；
During f ' >=800mm, MTF >=0.4,0 ° of visual field@100lp/mm；
Light filter through spectrum: 500 ~ 750nm.
Claims (7)
1. there is the wide spectrum big target surface high definition zoom lens of overlength focal length, it is characterised in that: described camera lens light curb light enters
Penetrate direction be provided with focal power be positive the first fixed lens group, focal power be negative Zoom lens group, focal power be positive compensation
Battery of lens, iris, focal power is the second positive fixed lens group and color filter film；
Described first fixed lens group be sequentially provided with on light direction first group of first positive crescent moon lens, first group bear the moon
Tooth lens, first group of planoconvex lens, first group of biconcave lens, first group of second positive crescent moon lens；Described first group of first first month of the lunar year
Tooth lens, first group of second positive crescent moon lens are all made with ED material；
Described Zoom lens group be sequentially provided with on light direction zoom group bear crescent moon lens, by zoom group biconcave lens and
Glued group of zoom group biconvex lens contiguity；
Described offset lens group be sequentially provided with on light direction compensation group biconvex lens, born by compensation group crescent moon lens and
Glued group of compensation group biconvex lens contiguity；
Described second fixed lens group is sequentially provided with by second group of positive crescent moon lens and second group first on light direction
Glued group of negative crescent moon lens contiguity, second group of second negative crescent moon lens, by second group of biconvex lens and second group of the 3rd negative moon
Glued group of tooth lens contiguity.
The wide spectrum big target surface high definition zoom lens with overlength focal length the most according to claim 1, it is characterised in that: edge
Light direction, the airspace between described first fixed lens group and Zoom lens group is 182.16～209.63mm,
Airspace between Zoom lens group and offset lens group is 3.85～64.78mm, and offset lens group and second fixes lens
Airspace between group is 2.80～36.27mm.
The wide spectrum big target surface high definition zoom lens with overlength focal length the most according to claim 2, it is characterised in that: institute
Stating in the first fixed lens group, first group of first positive crescent moon lens and first group of airspace born between crescent moon lens are
116.17mm, first group of airspace born between crescent moon lens and first group of planoconvex lens is 1.77mm, and first group of plano-convex is saturating
Airspace between mirror and first group of biconcave lens is 1.02mm, first group of biconcave lens and first group of second positive crescent moon lens
Between airspace be 0.65mm；
In described Zoom lens group, zoom group is born crescent moon lens and is touched into by zoom group biconcave lens and zoom group biconvex lens
Glued group between airspace be 3.39mm；
In described offset lens group, compensation group biconvex lens bears crescent moon lens with by compensation group and compensation group biconvex lens touches into
Glued group between airspace be 0.21mm；
In described second fixed lens group, by second group of positive crescent moon lens and glued group of second group of first negative crescent moon lens contiguity
And the airspace between second group of second negative crescent moon lens is 78.49mm, second group of second negative crescent moon lens with by second group
Airspace between biconvex lens and second group of the 3rd negative crescent moon lens touch glued group is 27.74mm.
The wide spectrum big target surface high definition zoom lens with overlength focal length the most according to claim 1, it is characterised in that: institute
State first group of first positive crescent moon lens, the first group of second positive crescent moon lens ED optical glass all with the trade mark as H-FK61
Molding.
The wide spectrum big target surface high definition zoom lens with overlength focal length the most according to claim 1, it is characterised in that:
The transparent wavelength range of described color filter film is 500～750nm.
The wide spectrum big target surface high definition zoom lens with overlength focal length the most according to claim 1, it is characterised in that: when
When Zoom lens group is movable on optical path direction, offset lens group moves to the direction of motion of Zoom lens group simultaneously, with
Realize image planes while lens zoom constant.
The wide spectrum big target surface high definition zoom lens with overlength focal length the most according to claim 1, it is characterised in that: edge
Light direction, the assembling structure of described camera lens be divided into airtight assembly (41), focus pack (42), connecting cylinder (43),
Zoom assembly (44), cam pack (45), compensation assembly (46), iris assembly (47), rear fixation kit (48), video camera
Assembly (49)；Described first fixed lens group is located in focus pack (42), and described Zoom lens is mounted on zoom assembly (44)
In, described offset lens is mounted in compensation assembly (46), and described second fixed lens group and color filter film fix group after being located at
In part (48), the described built-in iris of iris assembly, camera lens outer wall includes airtight construction.
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Cited By (11)
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| CN107015352A (en) * | 2017-05-26 | 2017-08-04 | 福建师范大学 | A kind of dynamic LCOS projecting zoom lens of two groups of four constituent element and Zooming method |
| CN107450171A (en) * | 2017-08-09 | 2017-12-08 | 福建福光股份有限公司 | Suitable for the transmission-type overlength focal length high definition zoom lens of 3CCD video cameras |
| CN107544131A (en) * | 2017-09-28 | 2018-01-05 | 福建福光股份有限公司 | Big thang-kng amount high-resolution zoom camera lens |
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| CN107656361A (en) * | 2017-10-26 | 2018-02-02 | 福建福光股份有限公司 | Minimize the airborne zoom lens of high-resolution |
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| CN107015352A (en) * | 2017-05-26 | 2017-08-04 | 福建师范大学 | A kind of dynamic LCOS projecting zoom lens of two groups of four constituent element and Zooming method |
| CN107015352B (en) * | 2017-05-26 | 2023-03-24 | 福建师范大学 | Four-component two-action LCOS projection zoom lens and zooming method |
| CN109283669A (en) * | 2017-07-21 | 2019-01-29 | 佳能株式会社 | Zoom lens and image pick-up device |
| CN109283669B (en) * | 2017-07-21 | 2021-09-03 | 佳能株式会社 | Zoom lens and image pickup apparatus |
| CN107450171B (en) * | 2017-08-09 | 2019-11-19 | 福建福光股份有限公司 | Transmission-type overlength focal length high definition zoom lens suitable for 3CCD video camera |
| CN107450171A (en) * | 2017-08-09 | 2017-12-08 | 福建福光股份有限公司 | Suitable for the transmission-type overlength focal length high definition zoom lens of 3CCD video cameras |
| CN107544131A (en) * | 2017-09-28 | 2018-01-05 | 福建福光股份有限公司 | Big thang-kng amount high-resolution zoom camera lens |
| CN107589535A (en) * | 2017-09-29 | 2018-01-16 | 福建福光股份有限公司 | The low big multiplying power long-focus high definition zoom lens of distortion |
| CN107589535B (en) * | 2017-09-29 | 2019-10-25 | 福建福光股份有限公司 | The low big multiplying power long-focus high definition zoom lens of distortion |
| CN107656361A (en) * | 2017-10-26 | 2018-02-02 | 福建福光股份有限公司 | Minimize the airborne zoom lens of high-resolution |
| CN109061983A (en) * | 2018-09-06 | 2018-12-21 | 福建福光股份有限公司 | Visible light lens and its working method with fourth gear energy adjustment function |
| CN109061983B (en) * | 2018-09-06 | 2023-11-17 | 福建福光股份有限公司 | Visible light lens with four-gear energy adjusting function and working method thereof |
| CN110441234A (en) * | 2019-08-08 | 2019-11-12 | 上海御微半导体技术有限公司 | A kind of zoom cylinder mirror, defect detecting device and defect inspection method |
| CN112666692A (en) * | 2020-12-22 | 2021-04-16 | 福建福光股份有限公司 | Large-zoom-ratio ultra-long-focal-length high-definition fog-penetrating lens and imaging method thereof |
| CN113008083A (en) * | 2021-02-18 | 2021-06-22 | 西安工业大学 | Array type long-focus lens super wide-angle photoelectric detection target device |
| CN113008083B (en) * | 2021-02-18 | 2022-08-30 | 西安工业大学 | Array type long-focus lens super wide-angle photoelectric detection target device |
| WO2022198787A1 (en) * | 2021-03-22 | 2022-09-29 | 福建福光股份有限公司 | Telephoto visible light continuous zoom lens |
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