CN105044889A - High resolution zoom lens having strong fog penetration function and control method - Google Patents
High resolution zoom lens having strong fog penetration function and control method Download PDFInfo
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Abstract
The invention discloses a high resolution zoom lens having a strong fog penetration function and a control method. In an optical system of the high resolution zoom lens, a front fixed group A, a zooming group B, a compensation group C, a diaphragm D, a back fixed group E and a filter lens F are arranged successively. The front fixed group A comprises a lenticular lens A-1, a first glued group consisting of a negative meniscus lens A-2 and a positive meniscus lens A-3 which are glued together, and a positive meniscus lens A-4; the zooming group B comprises a second glued group consisting of a biconcave lens B-1, a lenticular lens B-2 and a lenticular lens B-3 which are glued together; the compensation lens group comprises a third glued group consisting of a positive meniscus lens C-1 and a biconcave lens which are glued together C-2; the rear fixed group E comprises a lenticular lens E-1, a fourth glued group consisting of a lenticular lens E-2 and a biconcave lens group E-3 which are glued together, a positive meniscus lens E-4 and a negative meniscus lens E-5. The camera lens disclosed by the invention improves the resolution and is matched with the high definition camera, and improves the capability of detecting an object in the distance under conditions of rain, snow, fog and haze.
Description
Technical field
The present invention relates to a kind of high-resolution zoom distance pick-up lens and the control method thereof with strong fog penetrating function, belong to field of photoelectric technology.
Background technology
Common pick-up lens is only limitted to the application scenario of general illumination condition, when be applied to descend like rain, haze weather conditions such as snow, mist time, system looks distance will seriously reduce, when particularly signal itself is very weak, echo signal can be caused to be submerged in the middle of background signal, cannot normally to use.Traditional light channel structure when overall volume is limited, the feature that also ubiquity zoom multiple is little, resolution is not high.
Along with the pixel dimension of imageing sensor constantly reduces, its characteristic frequency increases sharply, and photo electric video frequency monitoring develops into " identify and cognitive " now by scenery was pure to external world " viewing " in the past; From in the past can only to good illumination condition rain monitor, avenge, uninterrupted monitoring continuously the mal-condition such as mist; And machine system, towards compact future development, also requires that camera lens volume is little as far as possible, enhances competitiveness at present.
Summary of the invention
In view of this, the object of this invention is to provide a kind of high-resolution zoom distance pick-up lens and the control method thereof with strong fog penetrating function, compact conformation, improving resolution can be adaptive with the video camera of high definition, improves the detectivity to distant object under the haze weather conditions such as rain, snow, mist.
Technical scheme one of the present invention is: a kind of high-resolution zoom with strong fog penetrating function is apart from pick-up lens, and in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from front to back, focal power is negative zoom group B, focal power is negative compensating group C, light hurdle D, focal power is rear fixing group of positive E and color filter film F; Before described, fixing group A comprises the biconvex lens A-1 set gradually from front to back, the first gummed group of being touched by negative crescent moon lens A-2 and positive crescent moon lens A-3 and positive crescent moon lens A-4; Described zoom group B comprises the second gummed group of being touched by biconcave lens B-1, biconvex lens B-2 and biconcave lens B-3 three; Described compensating glass group C comprises the 3rd gummed group of being touched by positive crescent moon lens C-1 and biconcave lens C-2; Described rear fixing group of E comprises the biconvex lens E-1 set gradually from front to back, the 4th gummed group of being touched by biconvex lens E-2 and biconcave mirror group E-3, positive crescent moon lens E-4 and negative crescent moon lens E-5.
Further, the airspace before described between fixing group A and zoom group B is 2.67 ~ 44.49mm, and the airspace between zoom group B and compensating group C is 4.69 ~ 24.45mm, and the airspace between compensating group C and rear fixing group of E is 2.50 ~ 19.36mm.
Further, the airspace before described in fixing group A between biconvex lens A-1 and the first gummed group is 0.1mm, and the airspace between the first gummed group and positive crescent moon lens A-4 is 0.1mm; Airspace in described rear fixing group of E between biconvex lens E-1 and the 4th gummed group is 0.1mm, and the airspace between the 4th gummed group and positive crescent moon lens E-4 is 7.23mm, and the airspace between positive crescent moon lens E-4 and negative crescent moon lens E-5 is 0.1mm.
Further, described positive crescent moon lens A-3 and positive crescent moon lens A-4 adopts Extra-low Dispersion material H-FK61 to make.
Further, described camera lens physical construction comprises base plate and is located at the body tube on base plate, arrangement of mirrors seat before fixing group A before being arranged with in described body tube leading section to install, being provided with in the middle part of body tube can body tube is movable relatively zoom Mobile base and compensate Mobile base, described zoom Mobile base is arranged with the zoom microscope base installing zoom group B, described compensation Mobile base is arranged with the compensation microscope base installing compensating group C, and described body tube rear end is provided with the rear microscope base installing rear fixing group of E; Described base plate is also provided with and is positioned at described rear microscope base rear and the rotary disk basement be connected with video camera front end, on front side of described rotary disk basement, be provided with the rotating disk installing described color filter film F.
Further, periphery, described body tube leading section is arranged with focusing ring, focusing ring side is provided with the focusing motor be in transmission connection with focusing ring, before described focusing ring is driven by focusing guide pin, arrangement of mirrors seat slides axially, described focusing motor also coordinates transmission with focusing potentiometer by gear, and focusing ring side is also provided with the focusing microswitch regulating banking pin and control focusing motor.
Further, be provided with in the middle part of described body tube in order to zoom Mobile base and the guide shaft compensating Mobile base mobile guide; In the middle part of described body tube, periphery is arranged with cam, in the middle part of body tube, outer side is provided with zoom motor, described zoom motor is connected with described cam drive, described cam is driven zoom Mobile base by cam guide pin and is compensated Mobile base and moves vertically, and described zoom motor also coordinates transmission with zoom potentiometer by gear; Described cam side is also provided with zoom banking pin and controls the zoom microswitch of zoom motor.
Further, described color filter film F comprises visible ray color filter film and near infrared color filter film, on front side of described rotary disk basement, button is provided with rotating disk flap, and described rotary disk basement side is provided with switch motor, and described switch motor is connected to control dial rotation switchable color filter sheet by power wheel with dial rotation; Described rotary disk basement is provided with the color filter microswitch controlling switch motor.
Technical scheme two of the present invention is: the control method of high-resolution zoom apart from pick-up lens with strong fog penetrating function, adopt the high-resolution zoom as above with strong fog penetrating function apart from pick-up lens, press focusing microswitch and control focusing electric machine rotation, and then by focusing guide pin, the rotary motion of focusing ring is converted to moving axially of front arrangement of mirrors seat, realize the focusing function of camera lens; Press zoom microswitch and control zoom electric machine rotation, the rotary motion of cam be converted to zoom Mobile base by cam guide pin and compensate moving axially of Mobile base, realizing the zooming procedure of camera lens; Press color filter microswitch and control switch motor rotation, realized the handoff functionality of color filter film by dial rotation.
Compared with prior art, the present invention has following beneficial effect: pick-up lens of the present invention improves the focal power ability to take the burden of the highest front fixed mirror group of axle glazed thread height, adopt compensation for negative group and use multi-disc ED(Extra-low Dispersion) material, significantly reduce the aberrations such as optical lens second order spectrum, the resolution of camera lens is significantly improved, reach mega pixel, can be adaptive with the video camera of high definition.Employ three glued constructions in Zoom lens group, and take the photograph long distance structure in the introducing of light channel structure end, effectively reduce system bulk, achieve the densification of system; Improve the detectivity of camera system to distant object under the haze weather conditions such as rain, snow, mist.The functions such as the present invention has Power focus, power zoom, motorized color sheet switch and focal length is preset, can realize the robotization controlled, under the prerequisite ensureing compact conformation, take series of measures, improve the ability of camera lens vibration resistance, impact.
For making object of the present invention, technical scheme and advantage clearly understand, below by specific embodiment and relevant drawings, the present invention will be described in further detail.
Accompanying drawing explanation
Fig. 1 is the optical system schematic diagram of the embodiment of the present invention;
Fig. 2 is the physical construction cut-open view schematic diagram of the embodiment of the present invention;
Fig. 3 is the physical construction stereographic map of the embodiment of the present invention;
Fig. 4 is focus pack cut-open view in the embodiment of the present invention;
Fig. 5 is the left view of Fig. 3;
Fig. 6 is variable focus package cut-open view in the embodiment of the present invention;
Fig. 7 is the right view of Fig. 6;
Fig. 8 is color filter changeover module cut-open view in the embodiment of the present invention;
Fig. 9 is that the embodiment of the present invention is schemed at the MTF of visible light wave range;
Figure 10 is that the embodiment of the present invention is schemed at the MTF of near-infrared band (750nm ~ 950nm);
Number in the figure illustrates: 1-focus pack, 2-variable focus package, 3-color filter changeover module, 4-base plate, 5-positive crescent moon lens A-4, 6-positive crescent moon lens A-3, 7-bears crescent moon lens A-2, 8-biconvex lens A-1, 9-first trim ring, 10-first spacer ring, 11-focusing ring, arrangement of mirrors seat before 12-, 13-focuses guide pin, 14-second spacer ring, 15-focuses potentiometer, 16-body tube, 17-focuses motor, 18-focuses motor rack, 19-focuses switch frame, 20-focuses microswitch, 21-focuses banking pin, 22-biconcave lens B-3, 23-biconvex lens B-2, 24-biconcave lens B, 25-second trim ring, 26-retainer, 27-zoom microscope base, 28-guide shaft pressing plate, 29-zoom Mobile base, 30-zoom guide pin bushing, 31-compensates guide pin bushing, 32-cam guide pin, 33-compensates Mobile base, 34-compensates microscope base, 35-the 3rd trim ring, 36-biconcave lens C-2, 37-positive crescent moon lens C-1, microscope base after 38-, 39-biconvex lens E-1, 40-biconvex lens E-2, 41-biconcave mirror group E-3, 42-positive crescent moon lens E-4, 43-bears crescent moon lens E-5, 44-the 4th trim ring, 45-the 3rd spacer ring, 46-the 4th spacer ring, 47-the 5th spacer ring, 48-cam trim ring, 49-cam, 50-guide shaft, 51-steel ball, 52-zoom banking pin, 53-zoom microswitch, 54-zoom switch frame, 55-zoom motor rack, 56-zoom potentiometer, 57-zoom motor, 58-switch motor, 59-power axle, 60-power wheel, 61-rotary disk basement, 62-video camera, 63-rotating disk, 64-color filter microswitch, 65-turntable shaft, 66-color filter film F, 67-the 5th trim ring, 68-rotating disk flap.
Embodiment
As shown in Fig. 1 ~ 8, the high-resolution zoom with strong fog penetrating function is apart from a pick-up lens, and in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from front to back, focal power is negative zoom group B, focal power is negative compensating group C, light hurdle D, focal power is rear fixing group of positive E and color filter film F; Before described, fixing group A comprises the biconvex lens A-1 set gradually from front to back, the first gummed group of being touched by negative crescent moon lens A-2 and positive crescent moon lens A-3 and positive crescent moon lens A-4; Described zoom group B comprises the second gummed group of being touched by biconcave lens B-1, biconvex lens B-2 and biconcave lens B-3 three; Described compensating glass group C comprises the 3rd gummed group of being touched by positive crescent moon lens C-1 and biconcave lens C-2; Described rear fixing group of E comprises the biconvex lens E-1 set gradually from front to back, the 4th gummed group of being touched by biconvex lens E-2 and biconcave mirror group E-3, positive crescent moon lens E-4 and negative crescent moon lens E-5.
In the present embodiment, airspace before described between fixing group A and zoom group B is 2.67 ~ 44.49mm, airspace between zoom group B and compensating group C is 4.69 ~ 24.45mm, and the airspace between compensating group C and rear fixing group of E is 2.50 ~ 19.36mm.
In the present embodiment, the airspace before described in fixing group A between biconvex lens A-1 and the first gummed group is 0.1mm, and the airspace between the first gummed group and positive crescent moon lens A-4 is 0.1mm; Airspace in described rear fixing group of E between biconvex lens E-1 and the 4th gummed group is 0.1mm, and the airspace between the 4th gummed group and positive crescent moon lens E-4 is 7.23mm, and the airspace between positive crescent moon lens E-4 and negative crescent moon lens E-5 is 0.1mm.
The optical system be made up of above-mentioned lens set reaches following optical index:
1. focal length: f ' min=11.32mm, f ' max=144.05mm;
2. relative aperture D/f '=1/4.5;
3. field angle 2 ω=32.44 ° ~ 2.48 °;
4. optical texture length ∑ L≤128.00mm;
5. zoom stroke≤41.28mm;
6. resolution of lens: with super mega pixel ccd video camera or cmos camera adaptation;
7. Penetrating Fog color filter through spectrum: 750 ~ 950nm.
In the present embodiment, described positive crescent moon lens A-3 and positive crescent moon lens A-4 adopts Extra-low Dispersion material H-FK61 to make.
When optical design, carry out complicated to first fixing group, increase a positive lens, and select ED(Extra-low Dispersion) optical material, which enhance the focal power ability to take the burden of front fixing group that axle glazed thread height is the highest, significantly reduce the aberrations such as optical lens second order spectrum, make camera lens can imaging in wide spectral range, and resolution is significantly improved, reach super mega pixel level, can be adaptive with the video camera of high definition; In zoom group, employ three glued constructions, and quote at rear fixing group end and take the photograph structure far away, in conjunction with the reasonable selection of glass material, while System Optics length is reduced rapidly, machinery back focal length is enough large, and simplifies physical construction.
Consider that the haze weather conditions such as rain, snow, mist descend, in atmosphere containing small water particle, according to Mie theory: when scattering particle radius c and the ratio c/ λ of incident ray wavelength X are less, less in the luminous energy decline of image planes epigraph.Accordingly when optical design, increase the weight of near infrared spectral line (wavelength X is at the spectral line of more than 750nm), make camera lens also have higher resolution at near-infrared band.And carry out coatings optimization design, make optical lens have the transmitance higher than 80% in 450nm ~ 950nm wavelength band.
In the present embodiment, the body tube 16 that described camera lens physical construction comprises base plate 4 and is located on base plate 4, arrangement of mirrors seat 12 before fixing group A before being arranged with in described body tube 16 leading section to install, being provided with in the middle part of body tube 16 can body tube 16 is movable relatively zoom Mobile base 29 and compensate Mobile base 33, described zoom Mobile base 29 is arranged with the zoom microscope base 27 installing zoom group B, described compensation Mobile base 33 is arranged with the compensation microscope base 34 installing compensating group C, and described body tube 16 rear end is provided with the rear microscope base 38 installing rear fixing group of E; Described base plate 4 is also provided with and is positioned at described rear microscope base 38 rear and the rotary disk basement 61 be connected with video camera 62 front end, be provided with the rotating disk 63 installing described color filter film F66 on front side of described rotary disk basement 61, described body tube 16 be provided with focus pack 1, variable focus package 2 and color filter changeover module 3.
In the present embodiment, periphery, described body tube 16 leading section is arranged with focusing ring 11, described focusing ring 11 one end is provided with multi-step thread and coordinates with body tube 16, the other end is provided with derotation screw thread and coordinates with front arrangement of mirrors seat 12, focusing ring 11 side is provided with the focusing motor 17 be in transmission connection with focusing ring 11, described focusing ring 11 drives front arrangement of mirrors seat 12 to slide axially by focusing guide pin 13, body tube front end offers precision machined 2 uniform straight troughs, described focusing guide pin and straight trough are slidably matched, described focusing motor 14 also coordinates transmission with focusing potentiometer 15 by gear, focusing ring 11 side is also provided with the focusing microswitch 20 regulating banking pin 21 and control focusing motor.When the rotor rotational movement of motor 17 of focusing, drive focusing ring 11 to rotate, by focusing guide pin 13, the rotary motion of focusing ring 11 is converted to moving axially of front arrangement of mirrors seat 12, thus realizes the focusing function of camera lens; Meanwhile, described focusing motor 17 drives focusing potentiometer 15 to rotate, and can be controlled the step size of focusing by the variation relation of potentiometer 15 resistance accurately.
In the present embodiment, be provided with in the middle part of described body tube 16 in order to zoom Mobile base and the guide shaft 28 compensating Mobile base mobile guide, guide shaft 28 is fixed on body tube 16 by guide shaft pressing plate 28; In the middle part of described body tube 16, periphery is arranged with cam 49, and cam 49 is rotatably mounted on body tube 16 by steel ball 51 and also compresses with cam trim ring 48, forms rolling bearing structure; In the middle part of body tube 16, outer side is provided with zoom motor 57, described zoom motor 57 is in transmission connection with described cam 49, described cam 49 is driven zoom Mobile base by cam guide pin 32 and is compensated Mobile base and moves vertically, and described zoom motor 57 also coordinates transmission with zoom potentiometer 56 by gear; Described cam 49 side is also provided with zoom banking pin 52 and controls the zoom microswitch 53 of zoom motor.
When the rotor rotational movement of zoom motor 57, rotated by motor gear band moving cam 49, the rotary motion of cam 49 be converted to zoom Mobile base 29 by cam guide pin 32 again and compensate moving axially of Mobile base 33, thus realizing the consecutive variations of lens focus, completing zooming procedure; Meanwhile, described zoom motor 57 drives zoom potentiometer 56 to rotate, thus the resistance of potentiometer 56 is changed, and thus, forms man-to-man relation, can be realized the preparatory function of focal length by this approach sensor between focal length and zoom potentiometer 56 resistance.
In the present embodiment, described color filter film F66 comprises visible ray color filter film and near infrared color filter film, on front side of described rotary disk basement 61, button is provided with rotating disk flap 68 to play dust-proof and interception, described rotary disk basement 61 side is provided with switch motor 58, and described switch motor 58 is rotationally connected to control rotating disk 63 by power wheel 60 and rotating disk 63 and rotates switchable color filter sheet; Described rotary disk basement 61 is provided with the color filter microswitch 64 controlling switch motor 58, described color filter microswitch 64 is two and lays respectively at rotating disk both sides respectively in order to control the switching that visible ray and near infrared two kinds of color filter films are cut, when color filter switch motor 58 rotor rotational movement, rotated by power wheel 60 transmission and then drive rotating disk 63, thus play visible ray and near infrared two kinds of color filter films switchings.
The present invention has the control method of high-resolution zoom apart from pick-up lens of strong fog penetrating function, adopt the high-resolution zoom as above with strong fog penetrating function apart from pick-up lens, press focusing microswitch and control focusing electric machine rotation, and then by focusing guide pin, the rotary motion of focusing ring is converted to moving axially of front arrangement of mirrors seat, realize the focusing function of camera lens; Press zoom microswitch and control zoom electric machine rotation, the rotary motion of cam be converted to zoom Mobile base by cam guide pin and compensate moving axially of Mobile base, realizing the zooming procedure of camera lens; Press color filter microswitch and control switch motor rotation, realized the handoff functionality of color filter film by dial rotation.
Above-listed preferred embodiment; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the high-resolution zoom with strong fog penetrating function, apart from a pick-up lens, is characterized in that: in the optical system of described camera lens, along light, incident direction is provided with that focal power is positive front fixing group A successively from front to back, focal power is negative zoom group B, focal power is negative compensating group C, light hurdle D, focal power is rear fixing group of positive E and color filter film F; Before described, fixing group A comprises the biconvex lens A-1 set gradually from front to back, the first gummed group of being touched by negative crescent moon lens A-2 and positive crescent moon lens A-3 and positive crescent moon lens A-4; Described zoom group B comprises the second gummed group of being touched by biconcave lens B-1, biconvex lens B-2 and biconcave lens B-3 three; Described compensating glass group C comprises the 3rd gummed group of being touched by positive crescent moon lens C-1 and biconcave lens C-2; Described rear fixing group of E comprises the biconvex lens E-1 set gradually from front to back, the 4th gummed group of being touched by biconvex lens E-2 and biconcave mirror group E-3, positive crescent moon lens E-4 and negative crescent moon lens E-5.
2. according to claim 1 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: the airspace before described between fixing group A and zoom group B is 2.67 ~ 44.49mm, airspace between zoom group B and compensating group C is 4.69 ~ 24.45mm, and the airspace between compensating group C and rear fixing group of E is 2.50 ~ 19.36mm.
3. according to claim 2 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: the airspace before described in fixing group A between biconvex lens A-1 and the first gummed group is 0.1mm, and the airspace between the first gummed group and positive crescent moon lens A-4 is 0.1mm; Airspace in described rear fixing group of E between biconvex lens E-1 and the 4th gummed group is 0.1mm, and the airspace between the 4th gummed group and positive crescent moon lens E-4 is 7.23mm, and the airspace between positive crescent moon lens E-4 and negative crescent moon lens E-5 is 0.1mm.
4. according to claim 1 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: described positive crescent moon lens A-3 and positive crescent moon lens A-4 adopts Extra-low Dispersion material H-FK61 to make.
5. according to claim 1 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: described camera lens physical construction comprises base plate and is located at the body tube on base plate, arrangement of mirrors seat before fixing group A before being arranged with in described body tube leading section to install, being provided with in the middle part of body tube can body tube is movable relatively zoom Mobile base and compensate Mobile base, described zoom Mobile base is arranged with the zoom microscope base installing zoom group B, described compensation Mobile base is arranged with the compensation microscope base installing compensating group C, described body tube rear end is provided with the rear microscope base installing rear fixing group of E, described base plate is also provided with and is positioned at described rear microscope base rear and the rotary disk basement be connected with video camera front end, on front side of described rotary disk basement, be provided with the rotating disk installing described color filter film F.
6. according to claim 5 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: periphery, described body tube leading section is arranged with focusing ring, focusing ring side is provided with the focusing motor be in transmission connection with focusing ring, before described focusing ring is driven by focusing guide pin, arrangement of mirrors seat slides axially, described focusing motor also coordinates transmission with focusing potentiometer by gear, and focusing ring side is also provided with the focusing microswitch regulating banking pin and control focusing motor.
7. according to claim 6 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: be provided with in order to zoom Mobile base and the guide shaft compensating Mobile base mobile guide in the middle part of described body tube; In the middle part of described body tube, periphery is arranged with cam, in the middle part of body tube, outer side is provided with zoom motor, described zoom motor is connected with described cam drive, described cam is driven zoom Mobile base by cam guide pin and is compensated Mobile base and moves vertically, and described zoom motor also coordinates transmission with zoom potentiometer by gear; Described cam side is also provided with zoom banking pin and controls the zoom microswitch of zoom motor.
8. according to claim 7 have the high-resolution zoom of strong fog penetrating function apart from pick-up lens, it is characterized in that: described color filter film F comprises visible ray color filter film and near infrared color filter film, on front side of described rotary disk basement, button is provided with rotating disk flap, described rotary disk basement side is provided with switch motor, and described switch motor is connected to control dial rotation switchable color filter sheet by power wheel with dial rotation; Described rotary disk basement is provided with the color filter microswitch controlling switch motor.
9. one kind has the control method of high-resolution zoom apart from pick-up lens of strong fog penetrating function, it is characterized in that: adopt the high-resolution zoom as claimed in claim 8 with strong fog penetrating function apart from pick-up lens, press focusing microswitch and control focusing electric machine rotation, and then by focusing guide pin, the rotary motion of focusing ring is converted to moving axially of front arrangement of mirrors seat, realize the focusing function of camera lens; Press zoom microswitch and control zoom electric machine rotation, the rotary motion of cam be converted to zoom Mobile base by cam guide pin and compensate moving axially of Mobile base, realizing the zooming procedure of camera lens; Press color filter microswitch and control switch motor rotation, realized the handoff functionality of color filter film by dial rotation.
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| CN115598808A (en) * | 2022-04-28 | 2023-01-13 | 福建福光股份有限公司（Cn） | Long-focus zoom lens with electric cover opening mechanism and imaging method thereof |
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| CN106154524A (en) * | 2016-08-29 | 2016-11-23 | 浙江大华技术股份有限公司 | A kind of fog penetration lens and video camera |
| CN107765411A (en) * | 2017-11-14 | 2018-03-06 | 福建福光股份有限公司 | The high definition continuous magnification lens of the strong Penetrating Fog of big zoom ratio |
| 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 |
| CN115598808A (en) * | 2022-04-28 | 2023-01-13 | 福建福光股份有限公司（Cn） | Long-focus zoom lens with electric cover opening mechanism and imaging method thereof |
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