CN107272173B - Strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field - Google Patents
Strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field Download PDFInfo
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- CN107272173B CN107272173B CN201710679631.4A CN201710679631A CN107272173B CN 107272173 B CN107272173 B CN 107272173B CN 201710679631 A CN201710679631 A CN 201710679631A CN 107272173 B CN107272173 B CN 107272173B
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Abstract
The present invention relates to a kind of strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field, rear fixed group E that compensation group C that the zoom group B that is negative in the optical system of camera lens along light incident direction is successively arranged that focal power is positive from left to right preceding fixed group A, focal power, focal power are positive, iris D, focal power are positive;Preceding fixed group A includes by the first glued gluing unit of negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity, biconvex lens A-3, positive crescent moon lens A-4;Zoom group B includes by the second glued gluing unit of biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 contiguity, biconcave lens B-4;The compensation group C includes biconvex lens C-1, by the glued third gluing unit of negative crescent moon lens C-2 and biconvex lens C-3 contiguity, positive crescent moon lens C-4;Fixed group E includes by the 4th glued gluing unit of biconcave lens E-1 and positive crescent moon lens E-2 contiguity, colour filter E-3, biconvex lens E-4, concave-concave microscope group E-5, positive crescent moon lens E-6 afterwards.
Description
Technical field
The present invention relates to a kind of strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field, belong to photoelectricity skill
Art field.
Background technique
Under the hazes weather conditions such as rain, snow, mist, common pick-up lens detection range will be reduced seriously, extreme case
Under, echo signal can be even submerged in background signal, and camera system can not normal use;When service band is wider, such as
It is required that when visible light wave range and near infrared band can work, due to the influence of the aberrations such as second order spectrum, conventional light path structure
The feature that generally existing zoom multiple is small, resolution ratio is not high;Common camera system is only limitted to obtain the image information of target, can not
Obtain the digital information of such as geometric dimension.
As the pixel dimension of imaging sensor constantly reduces, characteristic frequency increases sharply, photo electric video frequency monitoring by
" viewing " in the past pure to external scene develops to " identification and cognition " now and even measures;It can only be to good light from the past
The uninterrupted continuous monitoring monitored under the mal-conditions such as rain, snow, mist according under the conditions of;Therefore, it is necessary to widen work as far as possible
Make spectral coverage, improves level of resolution, and output more as far as possible other necessary informations (such as current system focal length value, visual field value
Deng), improve product competitiveness.
Summary of the invention
The purpose of the present invention is places against the above deficiency, and providing a kind of structure simply has the continuous output work of visual field
The strong Penetrating Fog high definition zooming camera lens of energy.
The technical scheme is that a kind of strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field,
Along light, incident direction is successively arranged preceding fixed the group A, light focus that focal power is positive from left to right in the optical system of the camera lens
Spend the rear fixed group E that the zoom group B being negative, the compensation group C that focal power is positive, iris D, focal power are positive;It is solid before described
Surely group A includes first gluing unit glued by negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity, the lenticular set gradually
Mirror A-3, positive crescent moon lens A-4;The zoom group B includes setting gradually by biconcave lens B-1 and biconvex lens B-2 and concave-concave
The second glued gluing unit of lens B-3 contiguity, biconcave lens B-4;The compensation group C include the biconvex lens C-1 set gradually,
By the glued third gluing unit of negative crescent moon lens C-2 and biconvex lens C-3 contiguity, positive crescent moon lens C-4;Fixed group E after described
The 4th glued gluing unit, colour filter E-3, biconvex are touched by biconcave lens E-1 and positive crescent moon lens E-2 including what is set gradually
Lens E-4, concave-concave microscope group E-5, positive crescent moon lens E-6.
Further, the airspace between the preceding fixed group A and zoom group B is 1.5~87 mm, zoom group B and benefit
Repaying the airspace between group C is 1.5~118 mm, the airspace between compensation group C and rear fixed group E is 4.50~
35.50mm。
Further, in the preceding fixed group A, by the first of negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity gluing
Airspace between gluing unit and biconvex lens A-3 is 1.5mm, the air between biconvex lens A-3 and positive crescent moon lens A-4
Interval is 0.2mm;In the zoom group B, by biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 contiguity it is glued the
Airspace between two gluing units and biconcave lens B-4 is 3.5mm;In the compensation group C, biconvex lens C-1 with by the negative moon
Airspace between the glued third gluing unit of tooth lens C-2 and biconvex lens C-3 contiguity is 0.2mm, by negative crescent moon lens
Airspace between the glued third gluing unit of C-2 and biconvex lens C-3 contiguity and positive crescent moon lens C-4 is 0.2mm;It is described
Afterwards in fixed group E, by between biconcave lens E-1 and positive crescent moon lens E-2 contiguity glued the 4th gluing unit and colour filter E-3
Airspace is 22.50mm, the airspace between colour filter E-3 and biconvex lens E-4 be 13.7mm, biconvex lens E-4 with
Airspace between concave-concave microscope group E-5 is 3.5mm, and the airspace between concave-concave microscope group E-5 and positive crescent moon lens E-6 is
13.1mm。
Further, the mechanical structure of the camera lens includes being used for fixed preceding fixed group A, zoom group B, compensation group C, can be changed
Light bar D, rear frame, power zoom mechanism, electric focusing mechanism, motorized color chip switching structure, the video camera for fixing group E are fixed
And adjustment mechanism and connecting bottom board.
Further, the frame includes the primary mirror seat set gradually from left to right, rear microscope base, colour filter bar and colour filter
Lid, the rear end of primary mirror seat and the front end of rear microscope base are spirally connected, and the primary mirror seat leading portion inner wall is connect with preceding group of microscope base, organize mirror before described
Successively be equipped with preceding group of pressing ring, negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity gluing in seat from left to right first is glued
Group, preceding group of spacer ring A, biconvex lens A-3, preceding group of spacer ring B, positive crescent moon lens A-4, primary mirror seat middle section inner wall are equipped with zoom
Microscope base is equipped with zoom pressing ring, biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 contiguity glue in the zoom microscope base
Second gluing unit of conjunction, zoom group spacer ring, biconcave lens B-4, the primary mirror seat back segment inner wall are equipped with compensation microscope base, the benefit
It repays and is equipped with biconvex lens C-1, compensation group spacer ring A in microscope base, by negative crescent moon lens C-2 and biconvex lens C-3 contiguity gluing
Third gluing unit, compensation group spacer ring B, positive crescent moon lens C-4, compensation pressing ring, before the rear microscope base leading portion inner wall is bolted with rear group
Microscope base, be equipped in microscope base before being organized after described by the 4th glued gluing unit of biconcave lens E-1 and positive crescent moon lens E-2 contiguity,
Pressing ring A is organized afterwards, and the colour filter bar is built-in to be furnished with colour filter E-3, colour filter pressing ring, after being bolted with rear group in the colour filter lid
Microscope base is equipped with biconvex lens E-4, rear group spacer ring A, concave-concave microscope group E-5, rear group spacer ring B, positive crescent moon after group in microscope base after described
Lens E-6, rear group pressing ring B.
Further, the power zoom mechanism include motor rack, positioned at primary mirror seat peripheral part cam, be located at cam after
The cam pressing ring at end, positioned at the zoom balladeur train of primary mirror seat Inner Front End, in primary mirror seat rear end compensation balladeur train, magnet steel, Hall
Component holder, Hall element, the motor rack be equipped with motor, motor gear, potentiometer, potentiometer gear, motor gear with it is convex
The gear of wheel engages, and the cam guide pin connecting respectively with zoom balladeur train, compensation balladeur train is equipped in the cam, and the zoom is sliding
Be equipped with zoom microscope base in frame, while being slidably matched with primary mirror seat, be equipped with compensating glass seat in the compensation balladeur train, at the same with master
Microscope base is slidably matched.
Further, the electric focusing mechanism includes motor rack, potentiometer frame, the focusing positioned at primary mirror seat front end periphery
Ring, the focusing ring pressing ring of focusing ring front end, magnet steel, Hall element seat, Hall element, the motor rack are equipped with motor, motor
Gear, the potentiometer frame are equipped with potentiometer, potentiometer gear, are equipped with the tune connecting with preceding group of microscope base in the focusing ring
Burnt guide pin.
Further, the motorized color chip switching structure includes motor rack, transition wheel, turntable, Hall element seat, Hall
Element, the motor rack are equipped with motor, motor gear, are provided with color filter film E-3, the color filter film E- in the turntable
3 include visible light color filter film and near-infrared color filter film.
Further, the video camera is fixed and adjustment mechanism includes CCD, CCD frame, CCD fixed plate, insulation board, CCD pressure
Plate.
Further, the biconvex lens A-3, positive crescent moon lens A-4 are made of ultra-low dispersion material N-PK52A.
Compared with prior art, the invention has the following advantages: (1) this there is the strong of the continuous output function of visual field
The optical system structure of mist high definition zooming camera lens is simple.(2) using positive group collocation structure, be conducive to improve focal length resolution ratio
The characteristics of, the focal power ability to take the burden of the highest preceding fixed lens group of axis glazed thread height is improved, and ultralow using multi-disc ED(
Dispersion) material, the aberrations such as optical lens second order spectrum are significantly reduced, the resolution ratio of camera lens is significantly improved, reaches 400
Ten thousand pixels can be adapted to video camera high-definition;It is right under the hazes weather conditions such as rain, snow, mist to improve camera system
The detectivity of distant object.
Detailed description of the invention
The invention patent is further illustrated with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of optical system of the inventive embodiments;
Fig. 2 is that the inventive embodiments are schemed in the MTF of visible light wave range;
Fig. 3 is that the inventive embodiments are schemed in the MTF of near infrared band;
Fig. 4 is the lens construction cross-sectional view of the inventive embodiments;
Fig. 5 is the power zoom mechanism map one of the inventive embodiments;
Fig. 6 is the power zoom mechanism map two of the inventive embodiments;
Fig. 7 is the electric focusing mechanism figure one of the inventive embodiments;
Fig. 8 is the electric focusing mechanism figure two of the inventive embodiments;
Fig. 9 is that the motorized color piece of the inventive embodiments switches figure;
Figure 10 fixes for the CCD of the inventive embodiments and adjustment mechanism figure;
In figure:
Fixed group A before A-;B- zoom group B;C- compensation group C;D- iris D;Fixed group E after E-;The negative crescent moon lens of A-1
A-1;The positive crescent moon lens A-2 of A-2;A-3 biconvex lens A-3;The positive crescent moon lens A-4 of A-4;B-1 biconcave lens B-1;B-2 lenticular
Mirror B-2;B-3 biconcave lens B-3;B-4 biconcave lens B-4;C-1 biconvex lens C-1;The negative crescent moon lens C-2 of C-2;C-3 lenticular
Mirror C-3;The positive crescent moon lens C-4 of C-4;E-1 biconcave lens E-1;The positive crescent moon lens E-2 of E-2;E-3 colour filter E-3;E-4 lenticular
Mirror E-4;E-5 concave-concave microscope group E-5;The positive crescent moon lens E-6 of E-6.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Fig. 1~10, a kind of strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field, the mirror
Along A is organized in the light preceding fixation that incident direction is successively arranged that focal power is positive from left to right, focal power is negative in the optical system of head
Zoom group B, the rear fixed group E that is positive of the compensation group C that is positive of focal power, iris D, focal power;Fixed group A packet before described
Include first gluing unit glued by negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity set gradually, biconvex lens A-3, just
Crescent moon lens A-4;The zoom group B includes setting gradually by biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3
Touch the second glued gluing unit, biconcave lens B-4;The compensation group C includes the biconvex lens C-1 set gradually, by the negative moon
The glued third gluing unit of tooth lens C-2 and biconvex lens C-3 contiguity, positive crescent moon lens C-4;After described a fixed group E include according to
Fourth gluing unit glued by biconcave lens E-1 and positive crescent moon lens E-2 contiguity of secondary setting, colour filter E-3, biconvex lens E-
4, concave-concave microscope group E-5, positive crescent moon lens E-6.
In the present embodiment, the airspace between the preceding fixed group A and zoom group B is 1.5~87 mm, zoom group B
Airspace between compensation group C is 1.5~118 mm, the airspace between compensation group C and rear fixed group E is 4.50~
35.50mm。
In the present embodiment, in the preceding fixed group A, glued by negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity
Airspace between first gluing unit and biconvex lens A-3 is 1.5mm, between biconvex lens A-3 and positive crescent moon lens A-4
Airspace is 0.2mm;In the zoom group B, touched by biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 glued
The second gluing unit and biconcave lens B-4 between airspace be 3.5mm;In the compensation group C, biconvex lens C-1 with by
Airspace between the glued third gluing unit of negative crescent moon lens C-2 and biconvex lens C-3 contiguity is 0.2mm, by negative crescent moon
Airspace between the glued third gluing unit of lens C-2 and biconvex lens C-3 contiguity and positive crescent moon lens C-4 is 0.2mm;
After described in fixed group E, by biconcave lens E-1 and positive crescent moon lens E-2 contiguity glued the 4th gluing unit and colour filter E-3 it
Between airspace be 22.50mm, airspace between colour filter E-3 and biconvex lens E-4 is 13.7mm, biconvex lens E-
Airspace between 4 and concave-concave microscope group E-5 is 3.5mm, the airspace between concave-concave microscope group E-5 and positive crescent moon lens E-6
For 13.1mm.
In the present embodiment, the mechanical structure of the camera lens include for a fixed group A before fixed, zoom group B, compensation group C,
Iris D, the frame of rear fixed group E, power zoom mechanism 15, electric focusing mechanism 11, motorized color chip switching structure 26,
Video camera is fixed and adjustment mechanism 36 and connecting bottom board.
In the present embodiment, the frame include the primary mirror seat 8 set gradually from left to right, rear microscope base, colour filter bar and
Colour filter lid, the rear end of primary mirror seat and the front end of rear microscope base are spirally connected, and the primary mirror seat leading portion inner wall is connect with preceding group of microscope base 7, institute
It states and is successively equipped with preceding group of pressing ring 6, negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity gluing in preceding group of microscope base from left to right
The first gluing unit 3, preceding group of spacer ring A1, biconvex lens A-3(4), preceding group of spacer ring B2, positive crescent moon lens A-4(5), preceding group of spacer ring A
Dimensional tolerance is controlled, guarantees negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity glued the first gluing unit and biconvex lens A-
Airspace 1.50mm between 3, preceding group of spacer ring B control dimensional tolerance, guarantee biconvex lens A-3 and positive crescent moon lens A-4 it
Between airspace 0.20mm, primary mirror seat middle section inner wall is equipped with zoom microscope base 12, is equipped with change in the zoom microscope base
Times pressing ring 9, biconcave lens B-1 and biconvex lens B-2 and glued the second gluing unit 10 of biconcave lens B-3 contiguity, zoom group every
Enclose 13, biconcave lens B-4(14), zoom group spacer ring controls dimensional tolerance, guarantees biconcave lens B-1 and biconvex lens B-2 and double
Airspace 3.50mm between concavees lens B-3 contiguity glued the second gluing unit and biconcave lens B-4, the primary mirror seat back segment
Inner wall is equipped with compensation microscope base 21, and the compensation microscope base is built-in equipped with biconvex lens C-1(19), compensation group spacer ring A20, by the negative moon
The glued third gluing unit of tooth lens C-2 and biconvex lens C-3 contiguity, compensation group spacer ring B, positive crescent moon lens C-4, compensation pressing ring
27, compensation group spacer ring A control dimensional tolerance, guarantee that biconvex lens C-1 and negative crescent moon lens C-2 and biconvex lens C-3 touch glue
Airspace 0.20mm between the third gluing unit 24 of conjunction, compensation group spacer ring B(25) control dimensional tolerance, guarantee biconvex lens
The glued third gluing unit of C-1 and negative crescent moon lens C-2 and biconvex lens C-3 contiguity and positive crescent moon lens C-4(28) between
Airspace 0.20mm, microscope base 43 before the rear 29 leading portion inner wall of microscope base is bolted with rear group, is equipped in microscope base before organizing after described
By the 4th glued gluing unit 44 of biconcave lens E-1 and positive crescent moon lens E-2 contiguity, rear group pressing ring A(42), the colour filter bar
Colour filter E-3, colour filter pressing ring 41, microscope base 32 after being bolted with rear group in the colour filter lid 31, the rear group are equipped in 30
Biconvex lens E-4, rear group spacer ring A(38 are equipped in microscope base afterwards), concave-concave microscope group E-5(37), rear group spacer ring B, positive crescent moon lens
E-6(34), pressing ring B(33 is organized afterwards), colour filter bar controls dimensional tolerance, guarantees biconcave lens E-1 and positive crescent moon lens E-2 contiguity
Glued the 4th gluing unit and colour filter E-3(40) between airspace 22.50mm, colour filter lid controls dimensional tolerance, guarantor
Demonstrate,prove colour filter E-3 and biconvex lens E-4(39) between airspace 13.70mm, the rear spacer ring A that organizes controls dimensional tolerance, guarantee
Airspace 3.50mm between biconvex lens E-4 and concave-concave microscope group E-5;Spacer ring B(35 is organized after described) control dimensional tolerance, it protects
Demonstrate,prove the airspace 13.10mm between concave-concave microscope group E-5 and positive crescent moon lens E-6, primary mirror seat by 2 M4 soket head cap screws with
Bottom plate 45 is rigidly connected, and the rear microscope base is rigidly connected by 2 M4 soket head cap screws and bottom plate.
In the present embodiment, the power zoom mechanism includes motor rack 46, the cam 17 positioned at primary mirror seat peripheral part, position
In the cam pressing ring 23 of cam rear end, positioned at the zoom balladeur train 16 of primary mirror seat Inner Front End, in primary mirror seat the compensation of rear end it is sliding
Frame 18, magnet steel 47, Hall element seat 48, Hall element 49, the motor rack are equipped with motor 50, motor gear 51, potentiometer
52, potentiometer gear 53, motor gear are engaged with the gear of cam, be equipped in the cam respectively with zoom balladeur train, compensation
The cam guide pin 22 of balladeur train connection, is equipped with zoom microscope base in the zoom balladeur train, while being slidably matched with primary mirror seat, the benefit
It repays and is equipped with compensating glass seat in balladeur train, while being slidably matched with primary mirror seat;The motor rack passes through 2 M3 soket head cap screws and master
Microscope base rigid connection, the motor rack are equipped with motor, motor gear, potentiometer, potentiometer gear, the motor gear and electricity
Machine rigid connection, the potentiometer gear and potentiometer are rigidly connected, and the motor gear is engaged with potentiometer gear precision, institute
It states motor gear to engage with cam precision, the cam is placed in outside primary mirror seat, and is locked with cam pressing ring, and the cam is built-in
Equipped with cam guide pin, the cam guide pin is separately mounted on zoom balladeur train and compensation balladeur train, the zoom balladeur train and zoom mirror
Seat connection is cooperated using screw thread and main front, can effectively ensure that concentricity requirement, and the zoom balladeur train is matched with the sliding of primary mirror seat
It closes, the compensation balladeur train is connect with compensation microscope base, is cooperated using screw thread and main front, be can effectively ensure that concentricity requirement, institute
It states compensation balladeur train to be slidably matched with primary mirror seat, when the cam rotates to both ends extreme position, passes through Hall element inductive magnetic steel
Limit.
In the present embodiment, the electric focusing mechanism includes motor rack 46, potentiometer frame 54, is located at outside primary mirror seat front end
Focusing ring pressing ring 56, magnet steel 47, Hall element seat 48, the Hall element 49 of all focusing ring 55, focusing ring front end, the motor
Frame is equipped with motor, motor gear, and the potentiometer frame is equipped with potentiometer, potentiometer gear, is equipped in the focusing ring
The focusing guide pin 57 connecting with preceding group of microscope base, the motor rack are rigidly connected by 2 M3 soket head cap screws and primary mirror seat.It is described
Motor rack is equipped with motor, motor gear, and the motor gear and motor are rigidly connected, and the motor gear and focusing ring are accurate
Engagement, the potentiometer frame are rigidly connected by 2 M3 soket head cap screws and primary mirror seat, and the potentiometer frame is equipped with current potential
Device, potentiometer gear, the potentiometer gear and potentiometer are rigidly connected, and the potentiometer gear is engaged with focusing ring precision,
The focusing ring is placed in outside primary mirror seat, and is locked with focusing ring pressing ring, is equipped with focusing guide pin, the tune in the focusing ring
Burnt guide pin is mounted on preceding group of microscope base, is organized microscope base before described and is slidably matched with primary mirror seat, the focusing ring rotates to the both ends limit
When position, limited by Hall element inductive magnetic steel.
In the present embodiment, the motorized color chip switching structure includes motor rack 46, transition wheel 58, turntable 59, Hall
Component holder 48, Hall element 49, the motor rack are equipped with motor, motor gear, are provided with color filter film E- in the turntable
3, the color filter film E-3 include visible light color filter film and near-infrared color filter film, the operation wavelength of near-infrared color filter film
For 750~900nm, the motor rack is rigidly connected by 2 M3 soket head cap screws and colour filter bar, and the motor rack is equipped with
Motor, motor gear, the motor gear and motor are rigidly connected, and the motor gear is engaged with transition wheel precision, the mistake
Ferry boat is engaged with turntable precision, the colour filter of 2 kinds of different wave lengths is equipped in the colour filter turntable, and locked with colour filter pressing ring
Tightly, the turntable rotation, realizes the effect switched between different colour filters, when the colour filter turntable is rotated in place,
It is limited by Hall element inductive magnetic steel.
In the present embodiment, the video camera fix and adjustment mechanism include CCD61, CCD frame 62, CCD fixed plate 64, absolutely
Listrium 63, CCD pressing plate 60, the CCD are rigidly connected by 4 M3 soket head cap screws and CCD fixed plate, the CCD fixed plate
It is rigidly connected by 4 M3 soket head cap screws and CCD frame, the CCD frame is rigid by 4 M3 soket head cap screws and colour filter lid 31
Property connection, being overlapped for CCD and camera lens optical axis is realized with the CCD fixed plate by adjusting the CCD frame.
In the present embodiment, the biconvex lens A-3, positive crescent moon lens A-4 are made of ultra-low dispersion material N-PK52A.
In the present embodiment, the physical parameter of each eyeglass meets data demand shown in table 1:
The requirement of 1 eyeglass physical parameter of table
In the present embodiment, following optical index has been reached by the optical system that above-mentioned lens set is constituted:
Focal length: f ' min=27mm, f ' max=338mm;
F '=1/5 relative aperture D/;
It is adapted to detector: resolution ratio 2208x2208, pixel dimension 4.54umx4.54um;
Optical texture length ∑ L≤262mm;
Resolution of lens: it is adapted to four mega pixel CCD cameras or cmos camera;
Penetrating Fog colour filter penetrates spectrum: 750 ~ 950nm.
In optical design, first fixed group is complicated, increases positive lens, and select ED(ultra-low dispersion) optics material
Material improves the focal power ability to take the burden of the highest preceding fixed group of axis glazed thread height in this way, significantly reduces optical lens
The aberrations such as second order spectrum, enable camera lens to be imaged in wide spectral range, and resolution ratio is significantly improved, and reach four mega pixels
Level can be adapted to video camera high-definition;For the positive group longer disadvantage of collocation structure optics overall length, fixed group is multiple by after
Hydridization makes it have the characteristics of taking the photograph remote structure, effectively reduces system bulk, realizes the densification of system.
Using the penetration capacity of near-infrared spectral coverage light, in optical design, increasing near-infrared spectral line, (wavelength X exists
The spectral line of 750nm or more) weight, so that camera lens is also had higher resolution ratio near infrared band;And coatings optimization design is carried out,
Optical lens is set to have the transmitance higher than 80% in 450nm ~ 950nm wavelength band.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field, it is characterised in that: the camera lens
A is organized along the light preceding fixation that incident direction is successively arranged that focal power is positive from left to right in optical system, the change that focal power is negative
The rear fixed group E that B, the compensation group C that focal power is positive, iris D, focal power are positive is organized again;Before described a fixed group A include according to
First gluing unit glued by negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity of secondary setting, biconvex lens A-3, positive crescent moon
Lens A-4;The zoom group B includes setting gradually by biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 contiguity
Second gluing unit of gluing, biconcave lens B-4;The compensation group C includes the biconvex lens C-1 set gradually, saturating by negative crescent moon
The glued third gluing unit of mirror C-2 and biconvex lens C-3 contiguity, positive crescent moon lens C-4;Fixed group E includes successively setting after described
It is fourth gluing unit glued by biconcave lens E-1 and positive crescent moon lens E-2 contiguity set, colour filter E-3, biconvex lens E-4, double
Concave mirror group E-5, positive crescent moon lens E-6;Airspace before described between fixed group A and zoom group B is 1.5~87 mm, zoom
Airspace between group B and compensation group C is 1.5~118 mm, and the airspace between compensation group C and rear fixed group E is
4.50~35.50mm;Before described in fixed group A, by the first glued glue of negative crescent moon lens A-1 and positive crescent moon lens A-2 contiguity
Being combined the airspace between biconvex lens A-3 is 1.5mm, between the air between biconvex lens A-3 and positive crescent moon lens A-4
Every being 0.2mm;In the zoom group B, by the second of biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 contiguity gluing
Airspace between gluing unit and biconcave lens B-4 is 3.5mm;In the compensation group C, biconvex lens C-1 with by negative crescent moon
Airspace between the glued third gluing unit of lens C-2 and biconvex lens C-3 contiguity is 0.2mm, by negative crescent moon lens C-2
Airspace between the glued third gluing unit of biconvex lens C-3 contiguity and positive crescent moon lens C-4 is 0.2mm;After described
In fixed group E, by the sky between biconcave lens E-1 and positive crescent moon lens E-2 contiguity glued the 4th gluing unit and colour filter E-3
22.50mm is divided between gas, the airspace between colour filter E-3 and biconvex lens E-4 is 13.7mm, biconvex lens E-4 and double
Airspace between concave mirror group E-5 is 3.5mm, and the airspace between concave-concave microscope group E-5 and positive crescent moon lens E-6 is
13.1mm;Wherein negative crescent moon lens A-1, positive crescent moon lens A-2, positive crescent moon lens A-4, negative crescent moon lens C-2, positive crescent moon lens
C-4, positive crescent moon lens E-2, positive crescent moon lens E-6 are protruded to object space side.
2. the strong Penetrating Fog high definition zooming camera lens according to claim 1 with the continuous output function of visual field, feature
Be: the mechanical structure of the camera lens includes fixed group A before being used to fix, zoom group B, compensation group C, iris D, fixes afterwards
Group E frame, power zoom mechanism, electric focusing mechanism, motorized color chip switching structure, video camera fix and adjustment mechanism and
Connecting bottom board.
3. the strong Penetrating Fog high definition zooming camera lens according to claim 2 with the continuous output function of visual field, feature
Be: the frame includes the primary mirror seat set gradually from left to right, rear microscope base, colour filter bar and colour filter lid, primary mirror seat
Rear end and the front end of rear microscope base are spirally connected, and the primary mirror seat leading portion inner wall is connect with preceding group of microscope base, are organized in microscope base before described from left past
The right side be successively equipped with preceding group of pressing ring, negative crescent moon lens A-1 and glued the first gluing unit of positive crescent moon lens A-2 contiguity, preceding group every
A, biconvex lens A-3, preceding group of spacer ring B, positive crescent moon lens A-4 are enclosed, primary mirror seat middle section inner wall is equipped with zoom microscope base, described
The second of zoom pressing ring, biconcave lens B-1 and biconvex lens B-2 and biconcave lens B-3 contiguity gluing is equipped in zoom microscope base
Gluing unit, zoom group spacer ring, biconcave lens B-4, the primary mirror seat back segment inner wall are equipped with compensation microscope base, in the compensation microscope base
It is equipped with biconvex lens C-1, compensation group spacer ring A, by the glued third gluing of negative crescent moon lens C-2 and biconvex lens C-3 contiguity
Group, compensation group spacer ring B, positive crescent moon lens C-4, compensation pressing ring, microscope base before the rear microscope base leading portion inner wall is bolted with rear group are described
It is equipped in microscope base before organizing afterwards by the 4th glued gluing unit of biconcave lens E-1 and positive crescent moon lens E-2 contiguity, rear group pressing ring A,
The colour filter bar is built-in to be furnished with colour filter E-3, colour filter pressing ring, and microscope base after being bolted with rear group in the colour filter lid is described
Be equipped in microscope base after group afterwards biconvex lens E-4, rear group spacer ring A, concave-concave microscope group E-5, rear group spacer ring B, positive crescent moon lens E-6,
Pressing ring B is organized afterwards.
4. the strong Penetrating Fog high definition zooming camera lens according to claim 3 with the continuous output function of visual field, feature
Be: the power zoom mechanism includes motor rack, the cam positioned at primary mirror seat peripheral part, the cam pressure positioned at cam rear end
Circle, positioned at the zoom balladeur train of primary mirror seat Inner Front End, in primary mirror seat rear end compensation balladeur train, magnet steel, Hall element seat, Hall
Element, the motor rack are equipped with motor, motor gear, potentiometer, potentiometer gear, and the gear of motor gear and cam is nibbled
It closes, the cam guide pin connecting respectively with zoom balladeur train, compensation balladeur train is equipped in the cam, is equipped in the zoom balladeur train
Zoom microscope base, while being slidably matched with primary mirror seat, compensating glass seat is equipped in the compensation balladeur train, while matching with the sliding of primary mirror seat
It closes.
5. the strong Penetrating Fog high definition zooming camera lens according to claim 3 with the continuous output function of visual field, feature
Be: the electric focusing mechanism include motor rack, potentiometer frame, the focusing ring positioned at primary mirror seat front end periphery, before focusing ring
Focusing ring pressing ring, magnet steel, the Hall element seat, Hall element at end, the motor rack are equipped with motor, motor gear, the electricity
Position device frame is equipped with potentiometer, potentiometer gear, is equipped with the focusing guide pin connecting with preceding group of microscope base in the focusing ring.
6. the strong Penetrating Fog high definition zooming camera lens according to claim 3 with the continuous output function of visual field, feature
Be: the motorized color chip switching structure includes motor rack, transition wheel, turntable, Hall element seat, Hall element, the electricity
Rack is equipped with motor, motor gear, is provided with color filter film E-3 in the turntable, the color filter film E-3 includes visible light
Color filter film and near-infrared color filter film.
7. the strong Penetrating Fog high definition zooming camera lens according to claim 3 with the continuous output function of visual field, feature
Be: the video camera is fixed and adjustment mechanism includes CCD, CCD frame, CCD fixed plate, insulation board, CCD pressing plate.
8. the strong Penetrating Fog high definition zooming camera lens with the continuous output function of visual field according to claim 1, feature
Be: the biconvex lens A-3, positive crescent moon lens A-4 are made of ultra-low dispersion material N-PK52A.
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