CN106597649B - The strong Penetrating Fog telephotography zoom lens of high-resolution - Google Patents
The strong Penetrating Fog telephotography zoom lens of high-resolution Download PDFInfo
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- CN106597649B CN106597649B CN201611053025.3A CN201611053025A CN106597649B CN 106597649 B CN106597649 B CN 106597649B CN 201611053025 A CN201611053025 A CN 201611053025A CN 106597649 B CN106597649 B CN 106597649B
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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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Abstract
The present invention proposes the strong Penetrating Fog telephotography zoom lens of high-resolution, along radiation direction set positive light focus before fixed lens group A, negative light focus Zoom lens group B, positive light focus compensation lens group C, iris diaphgram D, fixed lens group E and color filter film F after positive light focus；Preceding fixed lens group A be successively arranged by negative crescent moon lens A-1 and biconvex lens A-2 contiguity the first gluing unit, plano-convex lens A-3, positive crescent moon lens A-4；Plano-convex lens A-3 is made of ultra-low dispersion material H-FK61；Zoom lens group B is successively arranged plano-concave lens B-1, the second gluing unit by biconcave lens B-2 and positive crescent moon lens B-3 contiguity, biconcave lens B-4；Compensate the third gluing unit that lens group C is equipped with biconvex lens C-1, is touched by negative crescent moon lens C-2 and biconvex lens C-3；Fixed lens group E is successively arranged biconcave lens E-1, positive crescent moon lens E-2, biconvex lens E-3, negative crescent moon lens E-4, biconvex lens E-5 afterwards；The present invention overcomes the not high disadvantages of current wide spectrum zoom lens resolution ratio, have splendid mist transmitting performance.
Description
Technical field
The present invention relates to the strong Penetrating Fog telephotography zoom lens of optical field, especially high-resolution.
Background technique
In the visible light environments such as fog, dust, smog, the effective observation distance of common pick-up lens will be greatly shortened,
It can only obtain fuzzy picture when using its imaging, be especially even more that " can not watch " when target contrast is low.Utilize infrared light
The Penetrating Fog pick-up lens that line can be generated with the principle of diffraction molecule can efficiently solve under this mal-condition at
As problem, remote observing effect is greatly promoted.However due to the presence of glass material dispersion, the light of different-waveband,
The position of optimum image plane is different, and pick-up lens is caused to be difficult to keep the high-resolution imaging of near infrared band.With user at
Image quality amount increasingly higher demands, the camera shooting zoom lens that resolution ratio is not high at present, mist transmitting performance is not strong can no longer meet use
The demand at family.
Solving the above problems is research purpose of the invention.
Summary of the invention
The present invention proposes the strong Penetrating Fog telephotography zoom lens of high-resolution, can greatly reduce wide spectrum bring second level
The isometric upper color difference of spectrum overcomes the not high disadvantage of current wide spectrum zoom lens resolution ratio；Camera shooting zoom lens is improved to exist
Detectivity under the adverse circumstances such as rain, snow, mist greatly improves distant surveillance effect, has splendid mist transmitting performance.
The present invention uses following technical scheme.The strong Penetrating Fog telephotography zoom lens of high-resolution, camera lens optical path edge
Light incident direction is equipped with the preceding fixed lens group A that is positive of focal power, and Zoom lens group B that focal power is negative, focal power are positive
Compensation lens group C, iris diaphgram D, the focal power rear fixed lens group E and color filter film F that are positive；The preceding fixed lens group
A along light incident direction be successively arranged by negative crescent moon lens A-1 and biconvex lens A-2 contiguity the first gluing unit, plano-convex lens
A-3, positive crescent moon lens A-4；The plano-convex lens A-3 is made of ultra-low dispersion material H-FK61.
The Zoom lens group B is successively arranged plano-concave lens B-1 along light incident direction, by biconcave lens B-2 and the first month of the lunar year
Second gluing unit of tooth lens B-3 contiguity, biconcave lens B-4.
The third that the compensation lens group C is equipped with biconvex lens C-1, is touched by negative crescent moon lens C-2 and biconvex lens C-3
Gluing unit.
Fixed lens group E is successively arranged biconcave lens E-1, positive crescent moon lens E-2, biconvex lens E-3, negative crescent moon after described
Lens E-4, biconvex lens E-5.
Airspace between the preceding fixed lens group A and Zoom lens group B is 4.50~90.00mm, Zoom lens
Group B and the airspace compensated between lens group C are 4.50~121.48mm, are compensated between lens group C and rear fixed lens group E
Airspace be 6.60~38.08mm.
In the preceding fixed lens group A, the airspace between the first gluing unit and plano-convex lens A-3 is 0.15mm, is put down
Airspace between convex lens A-3 and positive crescent moon lens A-4 is 0.15mm；In the Zoom lens group B, plano-concave lens B-1
Airspace between the second gluing unit is 2.26mm, and the airspace between the second gluing unit and biconcave lens B-4 is
6.84mm；In the compensation lens group C, the airspace between biconvex lens C-1 and third gluing unit is 0.15mm；After described
In fixed lens group E, the airspace between biconcave lens E-1 and positive crescent moon lens E-2 is 0.30mm, positive crescent moon lens E-2
Airspace between biconvex lens E-3 is 11.59mm, the airspace between biconvex lens E-3 and negative crescent moon lens E-4
It is 0.19mm, the airspace between negative crescent moon lens E-4 and biconvex lens E-5 is 1.64mm.
The color filter film F is near-infrared filter, and the operation wavelength of color filter film F is 700 ~ 900nm.
The front of the camera lens is equipped with Power focus mechanism, fixed lens group A before the Power focus mechanism built；It is described
The middle part of camera lens is equipped with power zoom mechanism, the power zoom mechanism built Zoom lens group B and compensation lens group C；It is described
The rear portion of camera lens is equipped with electronic dimming mechanism, iris diaphgram D built in the electronic dimming mechanism and rear fixed lens group E.
One precision potentiator of power zoom mechanism built is to realize focal length preparatory function.
The camera lens minimum focus f ' min=11mm, camera lens minimum focus f ' max=310mm；Lens optical structure length ∑
L≤235mm；Camera lens zoom stroke≤85.5mm.
The present invention is by being arranged the preceding fixed lens group A that focal power is positive, light along light incident direction in camera lens optical path
The rear fixed lens group E that the compensation lens group C and focal power that Zoom lens group B that focal power is negative, focal power are positive are positive, can close
Reason distributes the focal power of each constituent element, makes system compact.
The present invention selects ultra-low dispersion material H-FK61 in the preceding fixed lens group A that focal power is positive, can be effectively
Reduce the isometric upper color difference of second order spectrum, to realize the high-resolution imaging in system 400 ~ 900nm wide spectral range.
The present invention is deviated by the optimum image plane that the optical filter based on near-infrared filter compensates infrared band, is further mentioned
The high imaging effect of near infrared band, greatly improves the distant surveillance ability of system, realizes strong fog penetrating function.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Fig. 1 is light channel structure of embodiment of the present invention schematic diagram；
MTF figure when Fig. 2 is focal length of the present invention；
MTF figure when Fig. 3 is short focus of the present invention；
Fig. 4 is the total schematic diagram of structure of the invention；
Fig. 4 a is structural upright schematic diagram of the invention；
Fig. 5 is Power focus structural scheme of mechanism of the invention；
Fig. 5 a is another schematic diagram of Power focus mechanism of the invention；
Fig. 5 b is the stereoscopic schematic diagram of Power focus mechanism of the invention；
Fig. 6 is power zoom structural scheme of mechanism of the invention；
Fig. 6 a is another schematic diagram of power zoom mechanism of the invention；
Fig. 6 b is the stereoscopic schematic diagram of power zoom mechanism of the invention；
Fig. 7 is electronic dimming mechanism schematic diagram of the invention；
Fig. 7 a is the stereoscopic schematic diagram of electronic dimming mechanism of the invention；
In Fig. 1: fixed lens group A before 1-；2- Zoom lens group B；3- compensates lens group C；4- iris diaphgram D；It is solid after 5-
Fix-focus lens group E；6- color filter film F；
111 ~ negative crescent moon lens A-1；112 ~ biconvex lens A-2；113 ~ plano-convex lens A-3；114 ~ just crescent moon lens A-4；
121 ~ plano-concave lens B-1；122 ~ biconcave lens B-2；123 ~ just crescent moon lens B-3；124- biconcave lens B-4；
131- biconvex lens C-1；The negative crescent moon lens C-2 of 132-；133- biconvex lens C-3；
141- biconcave lens E-1；The positive crescent moon lens E-2 of 142-；143- biconvex lens E-3；The negative crescent moon lens E-4 of 144-；
145- biconvex lens E-5；
In Fig. 4,4a: 401. focus packs, 402. zoom cam packs, 403. variable focus packages, 404. compensation components, 405.
Electronic dimming mechanism disposes component, 407. filter wheel mechanisms, 408. camera assemblies, 409. Power focus machines after 406.
Structure, 4010. power zoom mechanisms；
In Fig. 5,5a, 5b: 501. eyeglass A1,502. eyeglass A2,503. eyeglass A3,504. eyeglass A4 organize spacer ring before 505.
II, spacer ring I is organized before 506., 507. preceding group lens barrels, 508. focus guide pin components, and pressing ring is organized before 509., and 5010. focus body tubes,
5011. focus cam pressing ring, and 5012. focus cam, 5013. focus motors, 5014. focus motor gears, 5015. potential focus
Device, 5016. focus variable rheostat gears, 5017. focus motor brackets, 5018. focus limiting bracket, and 5019. focus Hall element,
5020. focus magnet seats, 5021. focus magnets；
In Fig. 6,6a, 6b: 601. zoom microscope groups, 602. zoom balladeur trains, 603. body tubes, accurate steel balls before 604., 605.
Zoom guide pin component, 606. zoom cams, 607. compensation balladeur trains, 608. compensation guide pin components, 609. compensation microscope groups, after 6010.
Accurate steel balls, 6011. zoom cam pressing rings, 6012. pedestals, 6013. zoom electric machine supports, 6014. zoom potentiometers, 6015.
Zoom potentiometer gear, 6016. third wheels, 6017. zoom motor gears, 6018. zoom motors, 6019. zoom limiting brackets,
6020. zoom Hall element；
In Fig. 7: 701. diaphragm rotating ring pressing rings, 702. diaphragm rotating rings, 703. diaphragm rivets, 704. diaphragm pieces, 705. eyeglasses
E1,706, eyeglass E2,707. eyeglass E3,708. eyeglass E4,709. eyeglass E5 organize spacer ring I after 7010., organize pressing ring I after 7011.,
Spacer ring II is organized after 7012., spacer ring III is organized after 7013., pressing ring II is organized after 7014., organizes microscope base after 7015., 7016. diaphragm seats,
7017. diaphragm guide pins, 7018. Iris motors, 7019. Iris motor brackets, 7020. diaphragm third wheels, 7021. Iris motor teeth
Wheel.
Specific embodiment
As shown in figs. 1-7, the strong Penetrating Fog telephotography zoom lens of high-resolution, the camera lens optical path is along light incident direction
The preceding fixed lens group A(1 being positive equipped with focal power), the Zoom lens group B(2 that focal power is negative), the compensation that is positive of focal power
Lens group C(3), iris diaphgram D(4), the rear fixed lens group E(5 that is positive of focal power) and color filter film F(6)；It is fixed before described
Lens group A(1) be successively arranged along light incident direction by negative crescent moon lens A-1(111) and biconvex lens A-2(112) contiguity
First gluing unit, plano-convex lens A-3(113), positive crescent moon lens A-4(114)；The plano-convex lens A-3(113) by ultra-low dispersion
Material H-FK61 is made.
The Zoom lens group B(2) along light incident direction be successively arranged plano-concave lens B-1(121), by biconcave lens B-
2(122) and positive crescent moon lens B-3(123) contiguity the second gluing unit, biconcave lens B-4(124).
The compensation lens group C(3) be equipped with biconvex lens C-1(131), by negative crescent moon lens C-2(132) and biconvex lens
C-3(133) the third gluing unit touched.
It is described after fixed lens group E(5) be successively arranged biconcave lens E-1(141), positive crescent moon lens E-2(142), biconvex
Lens E-3(143), negative crescent moon lens E-4(144), biconvex lens E-5(145).
The preceding fixed lens group A(1) and Zoom lens group B(2) between airspace be 4.50~90.00mm, become
Times lens group B(2) and compensation lens group C(3) between airspace be 4.50~121.48mm, compensate lens group C(3) with after
Fixed lens group E(5) between airspace be 6.60~38.08mm.
The preceding fixed lens group A(1) in, the first gluing unit and plano-convex lens A-3(113) between airspace be
0.15mm, plano-convex lens A-3(113) and positive crescent moon lens A-4(114) between airspace be 0.15mm；The zoom is saturating
Microscope group B(2) in, plano-concave lens B-1(121) and the second gluing unit between airspace be 2.26mm, the second gluing unit and double
Concavees lens B-4(124) between airspace be 6.84mm；The compensation lens group C(3) in, biconvex lens C-1(131) with
Airspace between third gluing unit is 0.15mm；Fixed lens group E(5 after described) in, biconcave lens E-1(141) and just
Crescent moon lens E-2(142) between airspace be 0.30mm, positive crescent moon lens E-2(142) with biconvex lens E-3(143) it
Between airspace be 11.59mm, biconvex lens E-3(143) and negative crescent moon lens E-4(144) between airspace be
0.19mm, negative crescent moon lens E-4(144) and biconvex lens E-5(145) between airspace be 1.64mm.
The color filter film F(6) be near-infrared filter, color filter film F(6) operation wavelength be 700 ~ 900nm.
The front of the camera lens is equipped with Power focus mechanism (409), and preceding fixation built in the Power focus mechanism (409) is saturating
Microscope group A(1)；The middle part of the camera lens is equipped with power zoom mechanism (4010), zoom built in the power zoom mechanism (4010)
Lens group B(2) and compensation lens group C(3)；The rear portion of the camera lens is equipped with electronic dimming mechanism (405), the electric adjustable ray machine
Iris diaphgram D(4 built in structure (405)) and rear fixed lens group E(5).
A precision potentiator is built in the power zoom mechanism (4010) to realize focal length preparatory function.
The camera lens minimum focus f ' min=11mm, camera lens minimum focus f ' max=310mm；Lens optical structure length ∑
L≤235mm；Camera lens zoom stroke≤85.5mm.
Embodiment:
As shown in figure 4, the assemble mechanism of the camera lens disposes component 401, zoom cam pack before being followed successively by from left to right
402, zoom component 403, compensation component 404, electronic dimming mechanism 405, rear placement component 406, optical filter mechanism 407 and camera shooting
Thermomechanical components 408.The front of the camera lens is equipped with Power focus mechanism 409, and the middle part of the camera lens is equipped with power zoom mechanism
4010, the electronic dimming mechanism 405, Power focus mechanism 409 and power zoom mechanism 4010 are arranged in the four of camera lens
Week.The Power focus mechanism is provided with the focus variable rheostat 3015 of a realization focal length preparatory function and two realizations are output to
The Hall element 5019 of position semiotic function, the focus variable rheostat 5015 are precision potentiator.The power zoom mechanism setting
There are the zoom potentiometer 6014 for realizing focal length preparatory function and two realizations to export the Hall element of semiotic function in place
6020, the focus variable rheostat 6014 is precision potentiator.
Fit structure of the preceding fixed lens group A at Power focus mechanism disposes component 401 before described as shown in Fig. 5,5a
It is with preceding group of pressing ring 509 by negative crescent moon lens (501) and biconvex lens A2(502) gluing unit of contiguity, plano-convex lens A3
(503), positive crescent moon lens A4(504) it is placed in preceding group lens barrel 507 and by upper and lower two uniformly distributed focusing guide pin groups respectively
Part 508, which is placed in, to be focused in body tube 5010, the gluing unit of the negative crescent moon lens (501) and biconvex lens A2(502) contiguity
It is to be pressed in preceding group lens barrel 507 by preceding group of pressing ring 509, the negative crescent moon lens (501) and biconvex lens A2(502) contiguity
Gluing unit and plano-convex lens A3(503) between be provided with preceding group of spacer ring I 506, the plano-convex lens A3(503) and positive crescent moon lens
A4(504 preceding group of spacer ring II 505 is provided between).The Power focus mechanism 409 includes focus motor 5013, focuses body tube
5010, the focusing Hall element 5019 of magnet steel 5021 and accurate control focal position is focused, the focus motor 5013 passes through
Focus motor frame 5017, which is placed in, to be focused on body tube 5010, and the focusing Hall element 5019 is by focusing limiting bracket 5018
It is placed in and focuses on body tube 5010, precision machined 2 uniformly distributed guide grooves are offered on the focusing body tube 5010, it is described poly-
It being mounted on the motor shaft of burnt motor 5013 and focuses gear 5014, the focusing body tube 5010, which is mounted with, focuses cam 5012,
It focuses and offers precision machined 2 uniformly distributed linear skewed slots on cam 5012, with focusing guide pin component 508 for preceding group lens barrel
5012 are linked together with body tube 5010 is focused, and focus gear 5014 and engage with the gear focused on cam 5012.Work as focusing
The power-up rotation of motor 5012 when focusing cam 5012 being driven to rotate, is limited, preceding group lens barrel by focusing straight trough on body tube 5010
507 rotary motion is converted to linear motion, to realize the focusing to far and near target.
The fit structure of Zoom lens group B and compensation lens group C at power zoom mechanism is as shown in Fig. 6,6a, 6b, institute
It states zoom microscope group 501 and composition zoom component 403 on zoom balladeur train 502 is placed in by joint bolt；Compensation microscope group 609 passes through connection
It connects screw placement and forms compensation component 404 on compensation balladeur train 607.The zoom balladeur train 602 passes through respectively with compensation balladeur train 607
It is packed into body tube 603 with after 603 precise finiss of body tube, zoom cam 606 passes through preceding accurate steel balls 604 and rear accurate steel balls
6010 are placed on body tube 603, are compressed with zoom cam pressing ring 6010, and sliding friction when zoom cam 606 is rotated turns
Become rolling friction, to reduce frictional force when zoom cam 606 moves.The zoom cam 606 presses optical zoom movement side
Two zooms, compensated curve slot are processed in the requirement of journey, respectively with zoom guide pin component 605 and compensation guide pin component 608 zoom
Cam 606 is linked together with zoom balladeur train 602, compensation balladeur train 607.The power zoom mechanism 4010 is by zoom motor, change
Burnt potentiometer 6014 and zoom Hall element 6020 form, and the zoom motor 6018 is placed in master by zoom rack 6013
On lens barrel 603, the zoom Hall element 6020 is placed on body tube 603 by zoom limiting bracket 6019, the zoom
Potentiometer 6020 is placed on body tube 603 by zoom rack 6013.Zoom gear 6017 is nibbled with 606 gear of zoom cam
It closes, and zoom potentiometer gear 6014 is engaged by a third wheel 6016 with zoom cam 607.When zoom rotor make it is positive and negative
When rotary motion, by third wheel 6016, rotate synchronously zoom potentiometer rotor 6014 and zoom cam 607.By zoom, mend
It repays curved groove and zoom guide pin component 605, compensation guide pin component 608 drives zoom balladeur train 602, compensation balladeur train 607 by zoom, mends
The mode for repaying curved groove moves.Two straight troughs play support zoom guide pin component 605 and compensation guide pin component on body tube 603
608 effect, and the rotary motion of zoom balladeur train 602, compensation balladeur train 607 is made to become moving along a straight line.Strict control zoom is led
Cooperation between the straight-line groove of the curved groove and body tube 603 of screw assembly 605 and compensation guide pin component 608 and zoom cam 606
Gap guarantees that zoom component 403 and compensation component 404 slide steadily comfortably, without clamping stagnation.It is rotated in this way by motor and realizes zoom
Component 403 and compensation component 404 do tandem movement by zoom motion equation requirement, to realize the continuous change of system focal length
Change function.When the focal length of system changes, the changing value of potentiometer can be taken out by sample circuit appropriate, and be transmitted to control
Center processed, to realize that zoom value must be shown；Conversely, order is provided by control centre, it can be achieved that focal length real-time control.
The fit structure of iris diaphgram D and rear fixed lens group E at electronic dimming mechanism is described double as shown in Fig. 7,7a
Convex lens E3(707), negative crescent moon lens E4(708) and biconvex lens E5(709) be placed in rear microscope base 7015, it is described after placement
Component 406 is that biconcave lens E1(705) and positive crescent moon lens E2(706) is placed in diaphragm seat 7016, and by rear microscope base
7015 are mounted on diaphragm seat.The biconcave lens E1(705) and positive crescent moon lens E2(706) between use after organize spacer ring I 7010
It separates, and organizes pressing ring I 7011 after using and be pressed in diaphragm seat 7016.The biconvex lens E3(707) and negative crescent moon lens E4
(708) use after group spacer ring II 7012 separate, the negative crescent moon lens E4(708) and biconvex lens E5(709) use after group spacer ring III
7013 separate, and organize pressing ring II 7014 after using and be pressed in rear microscope base 7015.The electronic dimming mechanism 405 includes Iris motor
7018 form with the accurate diaphragm Hall element 7018 for controlling diaphragm openings of sizes position, and the diaphragm Hall element 7018 is installed
On diaphragm seat 7016.The Iris motor 7018 is placed on diaphragm seat 7016 by Iris motor frame 7019, the diaphragm
Diaphragm gear is mounted on the motor shaft of motor 7018, the diaphragm gear after engaging with 7020 gear of diaphragm third wheel by driving
Diaphragm third wheel 7020 rotates, and the diaphragm third wheel 7020 dials nail 7017 by the diaphragm being placed on diaphragm rotating ring 702 and drives light
Late rotating ring 702 rotates.The diaphragm rotating ring 702 is pressed in diaphragm seat 7016 by diaphragm rotating ring pressing ring 701, the diaphragm rotating ring
702 drive diaphragm piece 704 to rotate, to control the variation of aperture openings size, realize the process of Electronic control aperture size.
By assembling above, this example camera lens reaches following index:
Following optical index has been reached by the optical system that above-mentioned lens set is constituted:
Focal length: f ' min=11mm, f ' max=310mm;
Relative aperture D/f ': focal length is better than 1/4.5, and short focus is better than 1/3；
Field angle: 2 ω=1.22 ° ~ 33.4 °；
Optical texture length ∑ L≤235mm；
Zoom stroke≤85.5mm；
Resolution of lens: when focal length, the@of central vision MTF >=0.52 110lp/mm
When short focus, the@of central vision MTF >=0.66 110lp/mm
With reference to Fig. 2, Fig. 3, camera lens can be adapted to video camera high-definition；
Penetrating Fog colour filter penetrates spectrum: 700 ~ 900nm.
Claims (4)
1. the strong Penetrating Fog telephotography zoom lens of high-resolution, it is characterised in that: the camera lens optical path is set along light incident direction
There is the preceding fixed lens group A that focal power is positive, compensation lens group C that Zoom lens group B that focal power is negative, focal power are positive,
The rear fixed lens group E and color filter film F that iris diaphgram D, focal power are positive；The preceding fixed lens group A is along light incidence side
To being successively arranged the first gluing unit touched by negative crescent moon lens A-1 and biconvex lens A-2, plano-convex lens A-3, positive crescent moon lens
A-4；The plano-convex lens A-3 is made of ultra-low dispersion material H-FK61；
The Zoom lens group B is successively arranged plano-concave lens B-1, saturating by biconcave lens B-2 and positive crescent moon along light incident direction
Second gluing unit of mirror B-3 contiguity, biconcave lens B-4；
The third gluing that the compensation lens group C is equipped with biconvex lens C-1, is touched by negative crescent moon lens C-2 and biconvex lens C-3
Group；
Fixed lens group E is successively arranged biconcave lens E-1, positive crescent moon lens E-2, biconvex lens E-3, negative crescent moon lens after described
E-4, biconvex lens E-5；
Airspace between the preceding fixed lens group A and Zoom lens group B is 4.50~90.00mm, Zoom lens group B with
The airspace compensated between lens group C is 4.50~121.48mm, compensates the sky between lens group C and rear fixed lens group E
Gas interval is 6.60~38.08mm；
The color filter film F is near-infrared filter, and the operation wavelength of color filter film F is 700 ~ 900nm；
The near-infrared filter is located at the output of camera lens optical path；
In the preceding fixed lens group A, the airspace between the first gluing unit and plano-convex lens A-3 is 0.15mm, and plano-convex is saturating
Airspace between mirror A-3 and positive crescent moon lens A-4 is 0.15mm；In the Zoom lens group B, plano-concave lens B-1 and
Airspace between two gluing units is 2.26mm, and the airspace between the second gluing unit and biconcave lens B-4 is 6.84mm；
In the compensation lens group C, the airspace between biconvex lens C-1 and third gluing unit is 0.15mm；It is fixed saturating after described
In microscope group E, the airspace between biconcave lens E-1 and positive crescent moon lens E-2 is 0.30mm, positive crescent moon lens E-2 and biconvex
Airspace between lens E-3 is 11.59mm, and the airspace between biconvex lens E-3 and negative crescent moon lens E-4 is
0.19mm, the airspace between negative crescent moon lens E-4 and biconvex lens E-5 is 1.64mm；
The filter glass based on near-infrared filter is used to compensate the optimum image plane offset of infrared band, to improve near-infrared
The imaging effect of wave band realizes strong fog penetrating function.
2. the strong Penetrating Fog telephotography zoom lens of high-resolution according to claim 1, it is characterised in that: the camera lens
Front is equipped with Power focus mechanism, fixed lens group A before the Power focus mechanism built；The middle part of the camera lens is equipped with electronic
Zoom mechanism, the power zoom mechanism built Zoom lens group B and compensation lens group C；The rear portion of the camera lens is equipped with electronic
Dimming mechanism, iris diaphgram D built in the electronic dimming mechanism and rear fixed lens group E.
3. the strong Penetrating Fog telephotography zoom lens of high-resolution according to claim 2, it is characterised in that: the electronic change
A precision potentiator built in focusing mechanism is to realize focal length preparatory function.
4. the strong Penetrating Fog telephotography zoom lens of high-resolution according to claim 3, it is characterised in that: the camera lens is most
Small focal length f ' min=11mm, camera lens minimum focus f ' max=310mm；Lens optical structure length ∑ L≤235mm；Camera lens zoom
Stroke≤85.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053025.3A CN106597649B (en) | 2016-11-25 | 2016-11-25 | The strong Penetrating Fog telephotography zoom lens of high-resolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN107272173B (en) * | 2017-08-10 | 2019-11-15 | 福建福光股份有限公司 | Strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field |
| 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 |
| CN107765411B (en) * | 2017-11-14 | 2020-05-19 | 福建福光股份有限公司 | High-definition continuous zoom lens with large zoom ratio and strong fog penetration |
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