CN203643676U - High-resolution large-zoom-ratio machine-mounted zoom camera lens - Google Patents
High-resolution large-zoom-ratio machine-mounted zoom camera lens Download PDFInfo
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- CN203643676U CN203643676U CN201320859915.9U CN201320859915U CN203643676U CN 203643676 U CN203643676 U CN 203643676U CN 201320859915 U CN201320859915 U CN 201320859915U CN 203643676 U CN203643676 U CN 203643676U
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Abstract
The utility model relates to a high-resolution large-zoom-ratio machine-mounted zoom camera lens. An optical system of the zoom lens is provided with a front fixed group having positive focal power, a zoom group having negative focal power, a compensation group having negative focal power, a variable diaphragm component, a rear fixed group having positive focal power and color filter switching devices in the light incident direction; the front fixed group is successively provided with a positive crescent moon lens, a positive crescent moon lens, a negative crescent moon lens and a positive crescent moon lens; the zoom group is successively provided with a double-concave lens and a glued group, and a double-concave lens and a positive crescent moon lens are connected in a sealing manner to form the glued group; the compensation group is provided with a glued group, and a double-concave lens and a positive crescent moon lens are connected in a sealing manner to form the glued group; the front part of the rear fixed group is successively provided with a double-concave lens, a negative crescent moon lens, a glued group and a positive crescent moon lens, and a double-convex lens and double-concave lens are connected in a sealing manner to form the glued group; and the rear part of the rear fixed group is successively provided with a positive crescent moon lens and a negative crescent moon lens. The high-resolution large-zoom-ratio machine-mounted zoom camera lens has functions of continuous electric zoom, electric focusing, electric dimming, color filter switching, focal length real-time feedback and the like.
Description
Technical field
The utility model relates to the optical pick-up apparatus of video technique, particularly a kind of high resolving power, the large airborne zoom lens of zoom ratio.
Background technology
At present, airborne detection system not only wants that cube is little, quality is light, investigative range is large, and requires resolution high, and can be under the poor weather conditions such as rain, snow, mist, dirt Continuous Observation, the panorama search of the little multiplying power in large region can be done to target, the amplifying observation of the large multiplying power in zonule can be made again.Traditional mechanical compensation formula zoom lens's optical texture form is made up of first fixing group, zoom group, compensation group and rear fixing group of four constituent elements, but ubiquity volume compared with large, zoom ratio is little, resolution is lower, do not mate with high precision video camera, do not possess in shortcomings such as poor weather environment uses.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high resolving power, large zoom ratio zoom lens; This camera lens overcome existing zoom lens be limited to that bulking value is large, zoom ratio is lower, sharpness is poor, can not be with high precision Camera Match, do not possess in defects such as poor weather environment uses.
To achieve these goals, the technical solution of the utility model is: a kind of high resolving power, the large airborne zoom lens of zoom ratio, in the optical system of described camera lens along light from left to right incident direction to be respectively equipped with focal power be that positive front fixing group of A, focal power is that negative zoom group B, focal power is that compensation group C, iris assembly D, the focal power born are positive rear fixing group of E and color filter switching device F; Described front fixing group of A is provided with positive crescent moon lens A-1, positive crescent moon lens A-2, negative crescent moon lens A-3 and positive crescent moon lens A-4 successively, the first gummed group that described zoom group B is provided with successively biconcave lens B-1 and is connected airtight by biconcave lens B-2 and positive crescent moon lens B-3, described compensation group C is provided with the second gummed group of being connected airtight by biconcave lens C-1 and positive crescent moon lens C-2; The front portion of described rear fixing group of E is provided with biconvex lens E-1, negative crescent moon lens E-2, the 3rd gummed group of being connected airtight by biconvex lens E-3 and biconcave lens E-4 and positive crescent moon lens E-5 successively, and rear portion is provided with positive crescent moon lens E-6 and negative crescent moon lens E-7 successively.
Further, the airspace between described front fixing group of A and zoom group B is 1.6～95.0mm, and the airspace between described zoom group B and compensation group C is 5.3～50.1mm, and the airspace between described compensation group C and rear fixing group of E is 3.5～33.0mm.
Further, airspace between positive crescent moon lens A-1 in described front fixing group of A and positive crescent moon lens A-2 is 0.2mm, airspace between described positive crescent moon lens A-2 and negative crescent moon lens A-3 is 0.2mm, and the airspace between described negative crescent moon lens A-3 and positive crescent moon lens A-4 is 1.1mm.
Further, the biconcave lens B-1 in described zoom group B and the airspace between the first gummed group are 1.9mm.
Further, airspace between biconvex lens E-1 and negative crescent moon lens E-2 in described rear fixing group of E is 0.2mm, airspace between described negative crescent moon lens E-2 and the 3rd gummed group is 0.2mm, airspace between described the 3rd gummed group and positive crescent moon lens E-5 is 0.2mm, airspace between described positive crescent moon lens E-5 and positive crescent moon lens E-6 is 10.5mm, and the airspace between described positive crescent moon lens E-6 and negative crescent moon lens E-7 is 3.4mm.
Further, the focus adjusting mechanism of described camera lens comprises the focusing electric machine assembly being arranged on body tube and the front arrangement of mirrors cylinder of front fixing group of A is installed, described front arrangement of mirrors cylinder is arranged in body tube, the gear of described focusing electric machine assembly is fixedly connected with rotor, the gear of described focusing electric machine assembly is meshed with the external toothing of focusing ring, the internal thread of described focusing ring respectively with the external thread of front arrangement of mirrors cylinder, the external thread of body tube is connected, on described front arrangement of mirrors seat, being evenly provided with three matches to guide its relative body tube to make the focusing guide pin of rotational motion to linear motion with the guide groove on body tube respectively.
Further, the zoom mechanism of described camera lens comprises zoom electric machine assembly, the zoom seat of zoom group B is installed and the compensation seat of compensation group C is installed, described zoom seat and compensation seat are arranged on respectively on the front and back end of two guide rods in body tube, the gear of described zoom electric machine assembly is meshed with the gear of precision resistor and the gear of cam respectively through third wheel, the front and back end of described cam respectively premenstrual accurate steel balls and rear accurate steel balls is arranged on body tube and by set nut and compresses, on described cam, offer zoom curved groove and compensated curve groove, on described zoom seat, be provided with the zoom guide pin matching with zoom curved groove, on described compensation seat, be provided with the compensation guide pin matching with compensated curve groove.
Further, described color filter switching device F comprise filter disc column, around filter disc column steadily rotation filter disc and be arranged in order three optical filters on filter disc, described filter disc is arranged in filter disc sleeve, on described filter disc sleeve, be equipped with optical filter electric machine assembly, magnet steel and with three corresponding three Hall element assemblies of optical filter, the gear of described optical filter electric machine assembly is meshed with the gear of filter disc.
Compared with prior art, the utlity model has following advantage: under comparable size and weight condition, this high resolving power, the large airborne zoom lens of zoom ratio have larger zoom ratio, higher resolution, wider climatic adaptation scope than ordinary optical camera lens, there is the functions such as continuous power zoom, electromotion focusing, electronic light modulation, color filter switching, focal length Real-time Feedback, possess in the detectivity of poor weather condition to distant object such as rain, snow, mist, dirt, be applicable to complicated airborne circumstance condition.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the optical system diagram of the utility model embodiment.
Fig. 2 is the profile interface schema of the utility model embodiment.
Fig. 3 is the schematic diagram of the utility model embodiment focus adjusting mechanism.
Fig. 4 is the schematic diagram of the utility model embodiment zoom mechanism.
Fig. 5 is the schematic diagram of the utility model embodiment color filter switching device.
Fig. 6 is the cross-sectional schematic at A-A place in Fig. 5.
In figure: fixing group before A-, B-zoom group, C-compensation group, D-iris assembly, fixes group after E-, F-color filter switching device, A-1, A-2, A-4, B-3, C-2, E-5, the positive crescent moon lens of E-6-, A-3, E-2, the negative crescent moon lens of E-7-, B-1, B-2, C-1, E-4-biconcave lens, E-1, E-3-biconvex lens, 1-body tube, 2-zoom seat, 3-cam cover, 4-socket head cap screw, 5-accurate steel balls, 6-zoom guide pin, 7-zoom guide pin bushing, 8-guide rod, 9-zoom electric machine assembly, 10-cam, 11-compensates guide pin bushing, 12-compensates seat, 13-compensates guide pin, 14-set nut, 15-focusing ring, arrangement of mirrors cylinder before 16-, the 17-guide pin of focusing, the 18-electric machine assembly of focusing, 19-filter disc column, 20-filter disc, 21-filter disc sleeve, 22-optical filter electric machine assembly, 23-magnet steel, 24-optical filter A, 25-optical filter B, 26-optical filter C, 27-optical filter trim ring, 28-filter disc trim ring, 29-Hall element assembly A, 30-Hall element assembly B, 31-Hall element assembly C, 32-coupling sleeve, 33-light hurdle adjusting gear, 34-light hurdle electric machine assembly, 35-camera assembly.
Embodiment
As shown in Figure 1, a kind of high resolving power, the large airborne zoom lens of zoom ratio, in the optical system of described camera lens along light from left to right incident direction to be respectively equipped with focal power be that positive front fixing group of A, focal power is that negative zoom group B, focal power is that compensation group C, iris assembly D, the focal power born are positive rear fixing group of E and color filter switching device F; Described front fixing group of A is provided with positive crescent moon lens A-1, positive crescent moon lens A-2, negative crescent moon lens A-3 and positive crescent moon lens A-4 successively, the first gummed group that described zoom group B is provided with successively biconcave lens B-1 and is connected airtight by biconcave lens B-2 and positive crescent moon lens B-3, described compensation group C is provided with the second gummed group of being connected airtight by biconcave lens C-1 and positive crescent moon lens C-2; The front portion of described rear fixing group of E is provided with biconvex lens E-1, negative crescent moon lens E-2, the 3rd gummed group of being connected airtight by biconvex lens E-3 and biconcave lens E-4 and positive crescent moon lens E-5 successively, and rear portion is provided with positive crescent moon lens E-6 and negative crescent moon lens E-7 successively.
In the present embodiment, airspace between described front fixing group of A and zoom group B is 1.6～95.0mm, airspace between described zoom group B and compensation group C is 5.3～50.1mm, and the airspace between described compensation group C and rear fixing group of E is 3.5～33.0mm.
In the present embodiment, airspace between positive crescent moon lens A-1 in described front fixing group of A and positive crescent moon lens A-2 is 0.2mm, airspace between described positive crescent moon lens A-2 and negative crescent moon lens A-3 is 0.2mm, and the airspace between described negative crescent moon lens A-3 and positive crescent moon lens A-4 is 1.1mm.
In the present embodiment, the biconcave lens B-1 in described zoom group B and the airspace between the first gummed group are 1.9mm.
In the present embodiment, airspace between biconvex lens E-1 and negative crescent moon lens E-2 in described rear fixing group of E is 0.2mm, airspace between described negative crescent moon lens E-2 and the 3rd gummed group is 0.2mm, airspace between described the 3rd gummed group and positive crescent moon lens E-5 is 0.2mm, airspace between described positive crescent moon lens E-5 and positive crescent moon lens E-6 is 10.5mm, and the airspace between described positive crescent moon lens E-6 and negative crescent moon lens E-7 is 3.4mm.
In the present embodiment, this high resolving power, the large airborne zoom lens of zoom ratio have reached following technical indicator: (1) focal length: f '=10.5mm～300mm; (2) field angle scope: 31.9 °～1.14 °; (3) relative aperture: D/f ' is better than 1/4.2; (4) resolution of lens: adapt to 1/3 " mega pixel ccd video camera or cmos camera; (5) omnidistance zooming time is less than 6 ~ 12 seconds; (6) working temperature :-55 DEG C～+ 65 DEG C, stabilization time, 2h, can normally work; (7) storage temperature :-60 DEG C, 24 h ,+70 DEG C, 48 h; (8) physical dimension is less than 92mm × 92mm × 200mm(not containing CCD movement); (9) general assembly (TW) is less than 2Kg; (10) oscillation power spectrum: 15～200Hz 0.04g
2/ Hz, 200～300-4dB/ frequency multiplication, 300～1000 0.0125g
2/ Hz, 1000～2000-6dB/ frequency multiplication, the function test time is the each axial 1h of X, Y, Z; (11) shock environmental test condition: half-sine wave, peak accelerator 15g, duration 11ms, velocity variable 1.05m/s; (12) adjacent optical filter is less than 2 seconds switching time.
As shown in Figure 2, this camera lens overall length is 233mm (containing ccd video camera), wide 88.6mm, high 88.6mm.In order to ensure the requirement of camera lens vibratory impulse, the utility model adopts sleeve draw bail as shown in Figure 2.Coupling sleeve 32 Yu Guang hurdle, rear end seats adopt flange masters connections of shaking, and coupling sleeve 32 front ends are mounting interface, adopt flange connection, be positioned at the axial center of gravity of camera lens place, to increase the resonance frequency of camera lens, avoid low frequency place to produce resonance, thereby improved the resistance to shock of camera lens.Coupling sleeve 32 materials that the utility model embodiment adopts are: LY12-cz duralumin, thin-walled is thick is 4.7mm.After this model machine is debug, vibrate, impact experiment.Experimental result: do not produce resonance effect in vibration frequency section, meet technical conditions requirement.
As shown in Figure 3, the focus adjusting mechanism of described camera lens comprises the focusing electric machine assembly 18 being arranged on body tube 1 and the front arrangement of mirrors cylinder 16 that front fixing group of A is installed, described front arrangement of mirrors cylinder 16 is arranged in body tube 1, the gear of described focusing electric machine assembly 18 is fixedly connected with rotor, the gear of described focusing electric machine assembly 18 is meshed with the external toothing of focusing ring 15, the internal thread of described focusing ring 15 respectively with the external thread of front arrangement of mirrors cylinder 16, the external thread of body tube 1 is connected, between described focusing ring 15 and body tube 1, adopt acme thread to connect, between described focusing ring 15 and front arrangement of mirrors cylinder 16, adopt left-hand thread (LHT) to connect, on described front arrangement of mirrors seat, being evenly provided with three matches to guide its relative body tube 1 to make the focusing guide pin 17 of rotational motion to linear motion with the guide groove on body tube 1 respectively.
When focusing electric machine assembly 18 electrical power time, rotor does forward and reverse motion, gear on focusing electric machine assembly 18 drives focusing ring 15 to do rotating campaign by engagement, arrangement of mirrors cylinder 16 before the left-hand thread (LHT) that focusing ring 15 is connected by the right-hand thread that is connected with body tube 1 and front arrangement of mirrors cylinder 16 drives, and under the effect of three uniform focusing guide pins 17, make forward and reverse rectilinear motion, thereby drive front fixing group of camera lens to make forward and reverse rectilinear motion, realize the object of system focusing.Described front arrangement of mirrors cylinder 16 and body tube 1 cooperation place car one deep gouge, to reduce mating surface, reduce friction, reduces the required moment of focusing motor, do not affect focusing accuracy simultaneously.
In the present embodiment, the gear engagement circle of this focusing electric machine assembly 18 is Φ 14, motor reduction gearbox output speed is 30 revs/min, the engagement circle of focusing ring 15 is Φ 85mm, focusing ring 15 is 3mm with the pitch that is connected of body tube 1, be that 0.75(is left-handed with the pitch that is connected of front arrangement of mirrors cylinder 16), therefore the helical pitch between focusing ring 15 and front arrangement of mirrors cylinder 16 is 3.75mm.According to optics requirement, focusing helical pitch should be greater than 1mm.Be that focusing ring 15 should rotate more than 96 °.Therefore the omnidistance focusing time t of the focusing component of the present embodiment is: t=(1/ motor gear rotating speed) × (focusing ring 15 engages circular diameter/motor gear diameter) × (focusing ring 15 rotation angle/360 °)=3.24 seconds, meet the requirement of Ji art Tiao Jian≤5s.
As shown in Figure 4, the zoom mechanism of described camera lens comprises zoom electric machine assembly 9, the zoom seat 2 of zoom group B is installed and the compensation seat 12 of compensation group C is installed, described zoom seat 2 and compensation seat 12 are arranged on respectively on the front and back end of two guide rods 8 in body tube 1, described two guide rods 8 are fixed on body tube 1 with cam cover 3 respectively symmetrically, described zoom seat 2, compensation seat 12 are pressed in respectively on zoom guide pin bushing 7, compensation guide pin bushing 11 by wringing fit, and are arranged on two guide rods 8.The gear of described zoom electric machine assembly 9 is meshed with the gear of precision resistor and the gear of cam 10 respectively through third wheel.Cam 10 rear and front end raceways are made cone end bearing form, support respectively with front and back accurate steel balls 5, and sliding friction when cam 10 is rotated changes rolling friction into, and the friction force while moving to reduce cam 10, reduces the required moment of zoom motor.On described cam 10 circumference, by zoom curved groove and compensated curve groove in the requirement milling of the optical zoom equation of motion, two cam paths are wide, and in strict accordance with optical performance curve processing, after processing, mechanical position limitation can be made in the two ends of cam path.On described zoom seat 2, be provided with the zoom guide pin 6 matching with zoom curved groove, on described compensation seat 12, be provided with the compensation guide pin 13 matching with compensated curve groove, described zoom guide pin 6 and compensation guide pin 13 link together cam 10 and zoom seat 2, compensation seat 12, when zoom group B is moved, compensation group C does corresponding movement to compensate.Wherein, two guide rods 8 are played a supporting role, and zoom seat 2, rotatablely moving of compensation seat 12 are converted into rectilinear motion; Zoom guide pin bushing 7, compensation guide pin bushing 11 are in order to increase the length that is slidably matched, the stationarity while increasing zoom seat 2,12 motion of compensation seat.When assembling, adjust set nut 14, cam 10 is gone slick, and the gap of the relative cam 10 of accurate steel balls 5 and neck collar is zero, ensure axially, radial accuracy, then lock set nuts 14 with three cone end holding screws.
In the time that the rotor of zoom electric machine assembly 9 is done positive and negative rotatablely moving, the gear of the gear of the gear of zoom electric machine assembly 9 by third wheel and precision resistor, cam 10 engages to rotate and makes precision resistor and cam 10 synchronous rotaries, drives zoom seat 2, compensation 12 to move by the mode of zoom curved groove, compensated curve groove respectively by zoom curved groove, compensated curve groove and zoom guide pin 6, compensation guide pin 13.Rotate and realize zoom seat 2, compensation seat 12 by rectilinear motion before and after zoom equation of motion requirement work by motor like this, thereby the focal length of system is changed.In the time that the focal length of system changes, the gear of precision resistor engages by third wheel, makes potentiometer rotation, the resistance of potentiometer changes, can take out the changing value of potentiometer by suitable sample circuit, and pass to control center, thereby realize the demonstration of zoom level.
In the present embodiment, the engagement circle of zoom cam 10 is Φ 75mm, it is Φ 20mm that zoom electric machine assembly 9 engages circular diameter, 30 revs/min of motor reduction gearbox output speeds, the helical pitch of zoom cam 10 is 160 °, therefore the omnidistance zooming time t of zoom assembly is: t=(1/ reducer casing rotating speed) × (zoom cam-engaged circular diameter/zoom motor gear diameter) × (cam helical pitch/360 °)=(60/30) × (75/20) × (160/360)=3.33s, meet the requirement of the full journey≤6s of technical protocol.
As shown in Fig. 5 ~ 6, described color filter switching device F comprise filter disc column 19, around filter disc column 19 steadily rotation filter disc 20 and be arranged in order three tablet filters on filter disc 20, described filter disc 20 is arranged in filter disc sleeve 21, on described filter disc sleeve 21, be equipped with optical filter electric machine assembly 22, magnet steel 23 and with corresponding three the Hall element assemblies of three tablet filters, the gear of described optical filter electric machine assembly 22 is meshed with the gear of filter disc 20.
Wherein, optical filter A24 is colored 0.4um-0.7um optical filter, optical filter B25 is black and white 0.6um-0.9um optical filter, optical filter C26 is Penetrating Fog 0.75um-1.0um optical filter, these three kinds of optical filters are contained in order on filter disc 20 and are also pressed with optical filter trim ring 27, filter disc 20 is arranged on filter disc column 19 to (tolerance on fit is got H8/f7) and compresses (gap get+0.04～0.14) with filter disc trim ring 28, guarantee that the filter disc 20 compressing can rotate around filter disc column 19 reposefully, if rotate not steady, the tolerance clearance of refine filter disc 20 and filter disc column 19, make it smooth operation.
The filter disc 20 that optical filter is housed is contained on filter disc sleeve 21, loads onto optical filter electric machine assembly 22, Hall element assembly, magnet steel 23 by the assembly relation of Fig. 5 ~ 6.Adjust optical filter electric machine assembly 22, optical filter electric machine assembly 22 gears are engaged smooth and easy with filter disc 20 gears, motor is engaged and can steadily be driven optical filter to clockwise rotate by gear.Add 5V power supply to Hall element assembly A29, detect Hall element output terminal voltage-to-ground, adjust the position of Hall element A, while making optical filter A24 aim at optical axis, magnet steel 23 is near Hall element assembly A29, Hall element output terminal overturns from high level to low level (being that the output pulse of Hall element A output terminal is at falling edge), and optical filter A24 is just in time at camera lens optical axis center.In like manner adjust the position of Hall element assembly B30, Hall element assembly C31, Hall element assembly B30 is exported in the time of negative edge, optical filter B25 aims at camera lens optical axis; Hall element assembly C31 exports in the time of negative edge, and optical filter C26 aims at camera lens optical axis.The output signal of Hall element is fed back to central computer, when central computer is with certain optical filter like this, allow driven by motor turntable rotation, and in the time that this Hall element is received negative edge signal, cut off motor power, this optical filter is just parked in the optical axis place of camera lens exactly, and camera lens is possessed in the detectivity of poor weather condition to distant object such as rain, snow, mist, dirt.
In the present embodiment, the engagement circle of filter disc 20 is Φ 38mm, filter disc electric machine assembly engagement circular diameter is Φ 12mm, 40 revs/min of motor reduction gearbox output speeds, three tablet filters are that trisection is uniform, therefore adjacent two color filter t switching time are: t=(1/ reducer casing rotating speed) × (filter disc engagement circular diameter/filter disc motor gear diameter) × (120 °/360 °)=(60/40) × (38/12) × (120/360)=1.58s, meet the requirement of the adjacent optical filter Zhuan of technical protocol Huan≤2s.
In the present embodiment, described focusing motor, zoom motor, light hurdle motor, filter disc motor are all provided with heating plate, under low temperature environment, motor is preheated, guarantee camera lens (working temperature :-55 DEG C ~+65 DEG C) in the time of low temperature can normally be worked, guarantee to meet technical requirement the duration of runs, ensure the usability under poor weather environment.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (8)
1. high resolving power, the large airborne zoom lens of zoom ratio, is characterized in that: in the optical system of described camera lens along light from left to right incident direction to be respectively equipped with focal power be that positive front fixing group of A, focal power is that negative zoom group B, focal power is that compensation group C, iris assembly D, the focal power born are positive rear fixing group of E and color filter switching device F; Described front fixing group of A is provided with positive crescent moon lens A-1, positive crescent moon lens A-2, negative crescent moon lens A-3 and positive crescent moon lens A-4 successively, the first gummed group that described zoom group B is provided with successively biconcave lens B-1 and is connected airtight by biconcave lens B-2 and positive crescent moon lens B-3, described compensation group C is provided with the second gummed group of being connected airtight by biconcave lens C-1 and positive crescent moon lens C-2; The front portion of described rear fixing group of E is provided with biconvex lens E-1, negative crescent moon lens E-2, the 3rd gummed group of being connected airtight by biconvex lens E-3 and biconcave lens E-4 and positive crescent moon lens E-5 successively, and rear portion is provided with positive crescent moon lens E-6 and negative crescent moon lens E-7 successively.
2. high resolving power according to claim 1, the large airborne zoom lens of zoom ratio, it is characterized in that: the airspace between described front fixing group of A and zoom group B is 1.6～95.0mm, airspace between described zoom group B and compensation group C is 5.3～50.1mm, and the airspace between described compensation group C and rear fixing group of E is 3.5～33.0mm.
3. high resolving power according to claim 1 and 2, the large airborne zoom lens of zoom ratio, it is characterized in that: the airspace between the positive crescent moon lens A-1 in described front fixing group of A and positive crescent moon lens A-2 is 0.2mm, airspace between described positive crescent moon lens A-2 and negative crescent moon lens A-3 is 0.2mm, and the airspace between described negative crescent moon lens A-3 and positive crescent moon lens A-4 is 1.1mm.
4. high resolving power according to claim 1 and 2, the large airborne zoom lens of zoom ratio, is characterized in that: the airspace between biconcave lens B-1 and the first gummed group in described zoom group B is 1.9mm.
5. high resolving power according to claim 1 and 2, the large airborne zoom lens of zoom ratio, it is characterized in that: the airspace between biconvex lens E-1 and negative crescent moon lens E-2 in described rear fixing group of E is 0.2mm, airspace between described negative crescent moon lens E-2 and the 3rd gummed group is 0.2mm, airspace between described the 3rd gummed group and positive crescent moon lens E-5 is 0.2mm, airspace between described positive crescent moon lens E-5 and positive crescent moon lens E-6 is 10.5mm, airspace between described positive crescent moon lens E-6 and negative crescent moon lens E-7 is 3.4mm.
6. high resolving power according to claim 1, the large airborne zoom lens of zoom ratio, it is characterized in that: the focus adjusting mechanism of described camera lens comprises the focusing electric machine assembly being arranged on body tube and the front arrangement of mirrors cylinder of front fixing group of A is installed, described front arrangement of mirrors cylinder is arranged in body tube, the gear of described focusing electric machine assembly is fixedly connected with rotor, the gear of described focusing electric machine assembly is meshed with the external toothing of focusing ring, the internal thread of described focusing ring respectively with the external thread of front arrangement of mirrors cylinder, the external thread of body tube is connected, on described front arrangement of mirrors seat, being evenly provided with three matches to guide its relative body tube to make the focusing guide pin of rotational motion to linear motion with the guide groove on body tube respectively.
7. high resolving power according to claim 1, the large airborne zoom lens of zoom ratio, it is characterized in that: the zoom mechanism of described camera lens comprises zoom electric machine assembly, the zoom seat of zoom group B is installed and the compensation seat of compensation group C is installed, described zoom seat and compensation seat are arranged on respectively on the front and back end of two guide rods in body tube, the gear of described zoom electric machine assembly is meshed with the gear of precision resistor and the gear of cam respectively through third wheel, the front and back end of described cam respectively premenstrual accurate steel balls and rear accurate steel balls is arranged on body tube and by set nut and compresses, on described cam, offer zoom curved groove and compensated curve groove, on described zoom seat, be provided with the zoom guide pin matching with zoom curved groove, on described compensation seat, be provided with the compensation guide pin matching with compensated curve groove.
8. high resolving power according to claim 1, the large airborne zoom lens of zoom ratio, it is characterized in that: described color filter switching device F comprise filter disc column, around filter disc column steadily rotation filter disc and be arranged in order three optical filters on filter disc, described filter disc is arranged in filter disc sleeve, on described filter disc sleeve, be equipped with optical filter electric machine assembly, magnet steel and with three corresponding three Hall element assemblies of optical filter, the gear of described optical filter electric machine assembly is meshed with the gear of filter disc.
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| CN201320859915.9U CN203643676U (en) | 2013-12-25 | 2013-12-25 | High-resolution large-zoom-ratio machine-mounted zoom camera lens |
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| CN201320859915.9U CN203643676U (en) | 2013-12-25 | 2013-12-25 | High-resolution large-zoom-ratio machine-mounted zoom camera lens |
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| CN104459943B (en) * | 2014-12-16 | 2016-08-24 | 福建福光股份有限公司 | Big target surface high-resolution focuses CS monitoring camera |
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2013
- 2013-12-25 CN CN201320859915.9U patent/CN203643676U/en not_active Withdrawn - After Issue
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| CN114047615A (en) * | 2021-10-27 | 2022-02-15 | 福建福光股份有限公司 | Wide-spectrum 20-time continuous zoom lens |
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