CN204903850U - Continuous varifocal camera lens in big visual field of high resolution - Google Patents
Continuous varifocal camera lens in big visual field of high resolution Download PDFInfo
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- CN204903850U CN204903850U CN201520581692.3U CN201520581692U CN204903850U CN 204903850 U CN204903850 U CN 204903850U CN 201520581692 U CN201520581692 U CN 201520581692U CN 204903850 U CN204903850 U CN 204903850U
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Abstract
The utility model relates to a video make a video recording technical field, especially a continuous varifocal camera lens in big visual field of high resolution, be equipped with the focal power in proper order for B is doubly organized in the change that the positive preceding fixed A of group, focal power are the burden, E is organized into the positive C of compensation group, iris diaphragm subassembly D and focal power for positive after -fixing to the focal power along the light incidence direction among the optical system of camera lens. This camera lens utilization machinery compensation method zooms cam streamlining technique design with the steepest, has focusing control function, varifocal control function, electronic dimming function and image output function in succession, and it can be under the environment of good weather provides photosignal, production fine definition's video image for the CCD of 1 " target surface or CMOS camera, have advantages such as long -focus, compact structure, hypermutation multiple proportions, with under the parfocal, it has the bigger observation angle of vision than ordinary optical lens, is showing to have improved the detectivity.
Description
Technical field
The utility model relates to video frequency camera sensor field, particularly a kind of high-resolution large-viewing-field zoom pick-up lens.
Background technology
Mechanical compensation formula zoom lens have the history of many decades in the application in video camera field, traditional zoom lens's ubiquity the contradiction of detection range and hunting zone, what zoom lens embodied is the contradiction of focal length and field angle, conventional zoom lens general different time possess the features such as Large visual angle angle, long-focus, high resolving power.In addition, existing zoom lens is limited to overall volume, cause observed range shorter, observation field angle less, picture quality is not good, limits observing capacity.
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-resolution large-viewing-field zoom pick-up lens with long-focus, compact conformation, high zoom ratio.
To achieve these goals, the technical solution of the utility model is: a kind of high-resolution large-viewing-field zoom pick-up lens, in the optical system of described camera lens along light direction be provided with successively focal power be positive before fixing group A, focal power is negative zoom group B, focal power is positive compensating group C, iris assembly D and focal power are rear fixing group of positive E, before described, fixing group A is provided with negative crescent moon lens A-1 successively, biconvex lens A-2, biconvex lens A-3 and positive crescent moon lens A-4, described zoom group B is provided with by negative crescent moon lens B-1 successively, the first gummed group that biconvex lens B-2 and biconcave lens B-3 touches and biconcave lens B-4, the second gummed group that described compensating group C is provided with biconvex lens C-1 and is touched by negative crescent moon lens C-2 and biconvex lens C-3, described rear fixing group of E is provided with negative crescent moon lens E-1, positive crescent moon lens E-2 and by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touches.
Further, airspace before described between fixing group A and zoom group B is 5.1 ~ 100.5mm, airspace between described zoom group B and compensating group C is 148.2 ~ 5.4mm, and the airspace between described compensating group C and rear fixing group of E is 6.7 ~ 54.1mm.
Further, airspace between negative crescent moon lens A-1 before described in fixing group A and positive crescent moon lens A-2 is 1.1mm, airspace between described positive crescent moon lens A-2 and biconvex lens A-3 is 0.6mm, and the airspace between described biconvex lens A-3 and positive crescent moon lens A-4 is 0.2mm; Airspace between the first gummed group of being touched by negative crescent moon lens B-1, biconvex lens B-2 and biconcave lens B-3 in described zoom group B and biconcave lens B-4 is 4.2mm; Biconvex lens C-1 in described compensating group C and the airspace between the second gummed group of being touched by negative crescent moon lens C-2 and biconvex lens C-3 are 0.2mm; Negative crescent moon lens E-1 in described rear fixing group of E and the airspace between positive crescent moon lens E-2 are 0.3mm, and the airspace between described positive crescent moon lens E-2 and the 3rd gummed group of being touched by biconvex lens E-3, biconcave lens E-4 and biconvex lens E-5 is 13.2mm.
Further, the physical construction of described camera lens is provided with focus pack successively along light direction, zoom assembly, zoom cam pack, compensation assembly, rear fixation kit and camera assembly, described camera lens front portion is provided with Power focus mechanism, power zoom mechanism is provided with in the middle part of described camera lens, described camera lens rear portion is provided with electronic diaphragm mechanism, described Power focus mechanism, power zoom mechanism, electronic diaphragm mechanism is respectively around the surrounding being distributed in camera lens, described Power focus organization establishes has a focus variable rheostat, described power zoom organization establishes has a zoom potentiometer, described electronic diaphragm mechanism is provided with a diaphragm potentiometer.
Further, group trim ring, front arrangement of mirrors cylinder and focusing body tube before described focus pack comprises, before described, negative crescent moon lens A-1, positive crescent moon lens A-2, biconvex lens A-3, positive crescent moon lens A-4 are placed in front arrangement of mirrors cylinder by group trim ring respectively, described front arrangement of mirrors cylinder by the uniform focusing guide pin component placement of upper and lower two 180o in focusing body tube, group spacer ring I before being provided with between described positive crescent moon lens A-2 and biconvex lens A-3, group spacer ring II before being provided with between described biconvex lens A-3 and positive crescent moon lens A-4, described Power focus mechanism comprises focus motor, focus variable rheostat and microswitch, described focus motor is placed in by focus motor frame and focuses on body tube, described microswitch is placed on focusing body tube by focusing on limiting bracket I and focusing on limiting bracket II, described focusing body tube offers the linear skewed slot that precision machined two 180o are uniform, described linear skewed slot matches with corresponding focusing guide pin assembly, described focusing body tube is arranged with the focusing cam settled by focusing on cam trim ring, the motor shaft of described focus motor is provided with the focusing gear with the gears meshing focused on cam, described focusing gear also with the potentiometer gears meshing on focus variable rheostat.
Further, described zoom assembly comprises zoom Mobile base, and described zoom mirror group is placed on zoom Mobile base by joint bolt; Described compensation assembly comprises compensation Mobile base, and described compensating glass group is placed in by joint bolt and compensates on Mobile base; Described zoom Mobile base and compensate Mobile base and to be installed on three guide rods and to be slidably matched, described guide rod is fixed on body tube by cam cover, described body tube is arranged with the zoom cam of being locked by zoom bearing and zoom cam trim ring, described zoom cam is processed with two zooms, compensated curve groove by the requirement of the optical zoom equation of motion, described zoom, compensated curve groove respectively with zoom guide pin assembly and compensate guide pin assembly zoom cam and zoom Mobile base, compensate Mobile base and be linked together; Described power zoom mechanism is made up of zoom motor, zoom potentiometer and microswitch, described zoom motor, zoom potentiometer are placed on body tube by zoom motor support and column, described microswitch is placed on body tube by zoom limiting bracket I and zoom limiting bracket II, the motor shaft of described zoom motor is provided with respectively with the zoom gear of the potentiometer gears meshing on the gear on zoom cam and zoom potentiometer.
Further, described rear fixation kit comprises diaphragm seat and rear body tube, described negative crescent moon lens E-1, positive crescent moon lens E-2 is placed in diaphragm seat respectively, described by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touch to be placed in rear body tube and to be placed on diaphragm seat by screw attachment, rear group of spacer ring is provided with between described negative crescent moon lens E-1 and positive crescent moon lens E-2, described positive crescent moon lens E-2 is pressed in diaphragm seat by rear group of trim ring I, described by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touches is pressed in rear body tube by rear group of trim ring II, described electronic diaphragm mechanism is by Iris motor, diaphragm potentiometer and the microswitch composition for controlling diaphragm openings of sizes position, described microswitch is placed on diaphragm seat by diaphragm limiting bracket I and diaphragm limiting bracket II, described diaphragm seat is arranged with the aperture setting ring compressed by aperture setting ring trim ring, described aperture setting ring is provided with diaphragm switch plectrum by screw attachment, described Iris motor is placed on diaphragm seat by Iris motor frame, the motor shaft of described Iris motor is provided with the diaphragm gear with the potentiometer gears meshing on diaphragm potentiometer, described diaphragm gear by with the gears meshing on aperture setting ring after drive aperture setting ring to rotate, described aperture setting ring is dialled nail by the diaphragm be placed on diaphragm rotating ring and is driven diaphragm rotating ring to rotate, described diaphragm rotating ring is pressed in diaphragm seat by diaphragm rotating ring trim ring, described diaphragm rotating ring drives diaphragm sheet to rotate.
Compared with prior art, the utility model has the following advantages: this camera lens utilizes mechanical compensation method and steepest zoom cam curve designing technique to design, there is focusing controlling functions, zoom controlling functions, electronic dimming function and Video Out, it can be 1 under the environment of good weather " CCD or the cmos camera of target surface provide photosignal, produce the video image of high definition; Have the advantages such as long-focus, compact conformation, high zoom ratio, under same parfocal, it has larger observation field angle than ordinary optical camera lens, significantly improves detectivity.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of the utility model embodiment.
Fig. 2 is the physical construction front view of the utility model embodiment.
Fig. 3 is the physical construction stereographic map of the utility model embodiment.
Fig. 4 is the Power focus mechanism front view of the utility model embodiment.
Fig. 5 is the Power focus mechanism left view of the utility model embodiment.
Fig. 6 is the Power focus mechanism right view of the utility model embodiment.
Fig. 7 is the power zoom mechanism front view of the utility model embodiment.
Fig. 8 is the power zoom mechanism left view of the utility model embodiment.
Fig. 9 is the power zoom mechanism right view of the utility model embodiment.
Figure 10 is the power zoom mechanism stereographic map of the utility model embodiment.
Figure 11 is the electronic diaphragm mechanism front view of the utility model embodiment.
Figure 12 is the electronic diaphragm mechanism stereographic map of the utility model embodiment.
In Fig. 1: fixing group before A., A-1. bears crescent moon lens A-1, A-2. biconvex lens A-2, A-3. biconvex lens A-3, A-4. positive crescent moon lens A-4; B. zoom group, B-1. bears crescent moon lens B-1, B-2. biconvex lens B-2, B-3. biconcave lens B-3, B-4. biconcave lens B-4; C. compensating group, C-1. biconvex lens C-1, C-2. bear crescent moon lens C-2, C-3. biconvex lens C-3; D. iris assembly; E. fix group afterwards, E-1. bears crescent moon lens E-1, E-2. positive crescent moon lens E-2, E-3. biconvex lens E-3, E-4. biconcave lens E-4, E-5. biconvex lens E-5.
In Fig. 2 ~ 3: 2-1. focus pack, 2-2. zoom assembly, 2-3. zoom cam pack, 2-4. compensation assembly, fixation kit after 2-5., 2-6. camera assembly, 2-7. Power focus mechanism, 2-8. power zoom mechanism, the electronic diaphragm mechanism of 2-9..
In Fig. 4 ~ 6: 3-1. bears crescent moon lens A-1,3-2. positive crescent moon lens A-2, group spacer ring II before 3-3. biconvex lens A-3,3-4. positive crescent moon lens A-4,3-5., group spacer ring I before 3-6., group trim ring before 3-7., 3-8. focuses on cam trim ring, arrangement of mirrors cylinder before 3-9., 3-10. focuses on guide pin assembly, 3-11. focuses on cam, and 3-12. focuses on body tube, and 3-13. focuses on gear, 3-14. potentiometer gear, 3-15. focus variable rheostat, 3-16. focus motor, 3-17. focuses on limiting bracket I, 3-18. microswitch, 3-19. focuses on limiting bracket II.
In Fig. 7 ~ 10: group pad before 4-1., 4-2. zoom mirror group, 4-3. cam cover, 4-4. zoom Mobile base, 4-5. zoom guide pin assembly, 4-6. guide rod, 4-7. body tube, 4-8. zoom cam, 4-9. compensates guide pin assembly, 4-10. compensation Mobile base, 4-11. compensating glass group, 4-12. microswitch, 4-13. zoom limiting bracket I, 4-14. zoom limiting bracket II, 4-15. zoom motor, 4-16. zoom potentiometer, 4-17. potentiometer gear, 4-18. zoom gear, 4-19. connects base I, 4-20. connects base II, 4-21. column, 4-22. zoom motor support.
In Figure 11 ~ 12: organize pad after 5-1., 5-2. diaphragm seat, 5-3. diaphragm rotating ring trim ring, 5-4. diaphragm rotating ring, 5-5. diaphragm rivet, 5-6. diaphragm sheet, 5-7. bears crescent moon lens E-1, 5-8. positive crescent moon lens E-2, spacer ring is organized after 5-9., trim ring I is organized after 5-10., 5-11. diaphragm guide pin, 5-12. aperture setting ring, 5-13. aperture setting ring trim ring, trim ring II is organized after 5-14., 5-15. biconvex lens E-3, 5-16. biconcave lens E-4, 5-17. biconvex lens E-5, 5-18. diaphragm gear, 5-19. potentiometer gear, 5-20. Iris motor, 5-21. diaphragm potentiometer, 5-22. diaphragm limiting bracket I, 5-23. microswitch, 5-24. diaphragm limiting bracket II, 5-25. diaphragm switch plectrum.
Embodiment
In order to allow above-mentioned feature and advantage of the present utility model become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Figure 1, a kind of high-resolution large-viewing-field zoom pick-up lens, in the optical system of described camera lens along light from left to right incident direction be provided with successively focal power be positive before fixing group A, focal power is negative zoom group B, focal power is positive compensating group C, iris assembly D and focal power are rear fixing group of positive E, before described, fixing group A is provided with negative crescent moon lens A-1 successively, biconvex lens A-2, biconvex lens A-3 and positive crescent moon lens A-4, described zoom group B is provided with by negative crescent moon lens B-1 successively, the first gummed group that biconvex lens B-2 and biconcave lens B-3 touches and biconcave lens B-4, the second gummed group that described compensating group C is provided with biconvex lens C-1 and is touched by negative crescent moon lens C-2 and biconvex lens C-3, described rear fixing group of E is provided with negative crescent moon lens E-1, positive crescent moon lens E-2 and by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touches.
In the present embodiment, airspace before described between fixing group A and zoom group B is 5.1 ~ 100.5mm, airspace between described zoom group B and compensating group C is 148.2 ~ 5.4mm, and the airspace between described compensating group C and rear fixing group of E is 6.7 ~ 54.1mm.Airspace between negative crescent moon lens A-1 before described in fixing group A and positive crescent moon lens A-2 is 1.1mm, airspace between described positive crescent moon lens A-2 and biconvex lens A-3 is 0.6mm, and the airspace between described biconvex lens A-3 and positive crescent moon lens A-4 is 0.2mm; Airspace between the first gummed group of being touched by negative crescent moon lens B-1, biconvex lens B-2 and biconcave lens B-3 in described zoom group B and biconcave lens B-4 is 4.2mm; Biconvex lens C-1 in described compensating group C and the airspace between the second gummed group of being touched by negative crescent moon lens C-2 and biconvex lens C-3 are 0.2mm; Negative crescent moon lens E-1 in described rear fixing group of E and the airspace between positive crescent moon lens E-2 are 0.3mm, and the airspace between described positive crescent moon lens E-2 and the 3rd gummed group of being touched by biconvex lens E-3, biconcave lens E-4 and biconvex lens E-5 is 13.2mm.
In the present embodiment, this high-resolution large-viewing-field zoom pick-up lens reaches following technical indicator: (1) focal length: 20mm ~ 500mm; (2) field angle: 2 ω=30.75 ° ~ 1.26 °; (3) relative aperture: D/f '=1: 4 ~ 1: 5; (4) optical texture length: Σ L≤285mm.
As shown in Fig. 2 ~ 3, the physical construction of described camera lens is provided with focus pack 2-1 from left to right successively along light direction, zoom assembly 2-2, zoom cam pack 2-3, compensation assembly 2-4, rear fixation kit 2-5 and camera assembly 2-6, described camera lens front portion is provided with Power focus mechanism 2-7, power zoom mechanism 2-8 is provided with in the middle part of described camera lens, described camera lens rear portion is provided with electronic diaphragm mechanism 2-9, described Power focus mechanism 2-7, power zoom mechanism 2-8, electronic diaphragm mechanism 2-9 is respectively around the surrounding being distributed in camera lens, described Power focus mechanism 2-7 is provided with a focus variable rheostat, described power zoom mechanism 2-8 is provided with a zoom potentiometer, described electronic diaphragm mechanism 2-9 is provided with a diaphragm potentiometer.The control method of this camera lens is as follows: the focus control being carried out camera lens by Power focus mechanism 2-7, and the zoom being carried out camera lens by power zoom mechanism 2-8 is controlled, and the aperture openings size of being carried out camera lens by electronic diaphragm mechanism 2-9 is controlled.
As shown in Fig. 4 ~ 6, group trim ring 3-7 before described focus pack comprises, front arrangement of mirrors cylinder 3-9 and focusing body tube 3-12, before described, group trim ring 3-7 will bear crescent moon lens A-1(3-1), positive crescent moon lens A-2(3-2), biconvex lens A-3(3-3), positive crescent moon lens A-4(3-4) be placed in front arrangement of mirrors cylinder 3-9 respectively, described front arrangement of mirrors cylinder 3-9 is placed in by the focusing guide pin assembly 3-10 that upper and lower two 180o are uniform and focuses in body tube 3-12, described positive crescent moon lens A-2(3-2) and biconvex lens A-3(3-3) between be provided with before group spacer ring I 3-6, described biconvex lens A-3(3-3) and positive crescent moon lens A-4(3-4) between be provided with before group spacer ring II 3-5, described Power focus mechanism comprises focus motor 3-16, focus variable rheostat 3-15 and microswitch 3-18, described focus motor 3-16 is focusing on body tube 3-12 by focus motor Stent Implantation, described microswitch 3-18 is placed on focusing body tube 3-12 by focusing on limiting bracket I 3-17 and focusing on limiting bracket II 3-19, described focusing body tube 3-12 offers the uniform linear skewed slot of precision machined two 180o, described linear skewed slot matches with corresponding focusing guide pin assembly 3-10, described focusing body tube 3-12 is arranged with the focusing cam 3-11 settled by focusing on cam trim ring 3-8, the motor shaft of described focus motor 3-16 is provided with the focusing gear 3-13 with the gears meshing focused on cam 3-11, described focusing gear 3-13 also engages with the potentiometer gear 3-14 on focus variable rheostat 3-15.
When focus motor 3-16 power up rotate and drive focus on cam 3-11 rotate time, by focusing on the straight trough restriction on body tube 3-12, the rotary motion of front arrangement of mirrors cylinder 3-9 is converted to rectilinear motion, thus realizes the focusing to far and near target.When the adjustable range of system changes, potentiometer gear 3-14 on focus variable rheostat 3-15 is by engaging with focusing gear 3-13, potentiometer is rotated, then potentiometer resistance changes, the changing value of potentiometer can be taken out by suitable sample circuit, and pass to control center, thus realize the display of focussing distance; Otherwise, provide order by control center, focussing distance can be realized and control in real time.
As shown in Fig. 7 ~ 10, described zoom assembly comprises zoom Mobile base 4-4, and described zoom mirror group 4-2 is placed on zoom Mobile base 4-4 by joint bolt, described compensation assembly comprises compensation Mobile base 4-10, and described compensating glass group 4-11 is placed in by joint bolt and compensates on Mobile base 4-10, described zoom Mobile base 4-4 and compensate Mobile base 4-10 and to be installed on three guide rod 4-6 and to be slidably matched, described guide rod 4-6 is fixed on body tube 4-7 by cam cover 4-3, described body tube 4-7 is arranged with the zoom cam 4-8 locked by zoom bearing and zoom cam trim ring, described zoom cam 4-8 is processed with two zooms by the requirement of the optical zoom equation of motion, compensated curve groove, described zoom, compensated curve groove is used zoom guide pin assembly 4-5 respectively and is compensated guide pin assembly 4-9 zoom cam 4-8 and zoom Mobile base 4-4, compensate Mobile base 4-10 to be linked together, described power zoom mechanism is made up of zoom motor 4-15, zoom potentiometer 4-16 and microswitch 4-12, described zoom motor 4-15, zoom potentiometer 4-16 are placed on body tube 4-7 by zoom motor support 4-22 and column 4-21, described microswitch 4-12 is placed on body tube 4-7 by zoom limiting bracket I 4-13 and zoom limiting bracket II 4-14, the motor shaft of described zoom motor 4-15 is provided with the zoom gear 4-18 engaged with the potentiometer gear 4-17 on the gear on zoom cam 4-8 and zoom potentiometer 4-16 respectively.
When positive and negative rotary motion done by zoom motor 4-15 rotor, make zoom potentiometer 4-16 and zoom gear 4-18 synchronous axial system.Moved by the mode of zoom, compensated curve groove by zoom, compensated curve groove and zoom guide pin assembly 4-5, compensation guide pin assembly 4-9 drive zoom Mobile base 4-4, compensation Mobile base 4-10, upper two straight troughs of body tube 4-7 play the effect supporting zoom guide pin assembly 4-5 and compensate guide pin assembly 4-9, and make zoom Mobile base 4-4, compensate the rotary motion of Mobile base 4-10 and become rectilinear motion.Strict control zoom guide pin assembly 4-5 and the tolerance clearance compensated between the curved groove of guide pin assembly 4-9 and zoom cam 4-8 and the straight-line groove of body tube 4-7, ensure that zoom assembly 2-2 and compensation assembly 2-4 slides steadily, without cassette tape.Realize zoom assembly 2-2 and compensation assembly 2-4 by motor rotation like this and do tandem motion by the requirement of zoom motion equation, thus realize the consecutive variations function of system focal length.When the focal length of system changes, potentiometer gear 4-17 on zoom potentiometer 4-16 engages with zoom gear 4-18, potentiometer is rotated, then the resistance of potentiometer changes, the changing value of potentiometer can be taken out by suitable sample circuit, and pass to control center, thus realize the display of varifocal; Otherwise, provide order by control center, the real-time control of focal length can be realized.
As shown in Figure 11 ~ 12, described rear fixation kit 2-5 comprises diaphragm seat 5-2 and rear body tube, described negative crescent moon lens E-1(5-7), positive crescent moon lens E-2(5-8) be placed in diaphragm seat 5-2 respectively, described by biconvex lens E-3(5-15), biconcave lens E-4(5-16) and biconvex lens E-5(5-17) the 3rd gummed group of touching to be placed in rear body tube and to be placed on diaphragm seat 5-2 by screw attachment, described negative crescent moon lens E-1(5-7) and positive crescent moon lens E-2(5-8) between be provided with rear group of spacer ring 5-9, described positive crescent moon lens E-2(5-8) be pressed in diaphragm seat 5-2 by rear group of trim ring I 5-10, described by biconvex lens E-3(5-15), biconcave lens E-4(5-16) and biconvex lens E-5(5-17) the 3rd gummed group of touching is pressed in rear body tube by rear group of trim ring II 5-14, described electronic diaphragm mechanism is by Iris motor 5-20, diaphragm potentiometer 5-21 and the microswitch 5-23 for controlling diaphragm openings of sizes position forms, described microswitch 5-23 is placed on diaphragm seat 5-2 by diaphragm limiting bracket I 5-22 and diaphragm limiting bracket II 5-24, described diaphragm seat 5-2 is arranged with the aperture setting ring 5-12 compressed by aperture setting ring trim ring 5-13, described aperture setting ring 5-12 is provided with diaphragm switch plectrum 5-25 by screw attachment, described Iris motor 5-20 is placed on diaphragm seat 5-2 by Iris motor 5-20 frame, the motor shaft of described Iris motor 5-20 is provided with the diaphragm gear 5-18 engaged with the potentiometer gear 5-19 on diaphragm potentiometer 5-21.
Diaphragm gear 5-18 by with the gears meshing on aperture setting ring 5-12 after drive aperture setting ring 5-12 to rotate, aperture setting ring 5-12 dials nail by the diaphragm be placed on diaphragm rotating ring 5-4 and drives diaphragm rotating ring 5-4 to rotate, diaphragm rotating ring 5-4 is pressed in diaphragm seat 5-2 by diaphragm rotating ring trim ring 5-3, diaphragm rotating ring 5-4 drives diaphragm sheet 5-6 to rotate, thus control the change of aperture openings size, realize the process of Electronic control aperture size.Potentiometer gear 5-19 on diaphragm potentiometer 5-21 engages with diaphragm gear 5-18, when aperture changes, potentiometer is rotated, then the resistance of potentiometer changes, the changing value of potentiometer can be taken out by suitable sample circuit, and pass to control center, thus realize the display of aperture caliber size; Otherwise, provide order by control center, the real-time control of diaphragm bore can be realized.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (7)
1. a high-resolution large-viewing-field zoom pick-up lens, it is characterized in that: in the optical system of described camera lens along light direction be provided with successively focal power be positive before fixing group A, focal power is negative zoom group B, focal power is positive compensating group C, iris assembly D and focal power are rear fixing group of positive E, before described, fixing group A is provided with negative crescent moon lens A-1 successively, biconvex lens A-2, biconvex lens A-3 and positive crescent moon lens A-4, described zoom group B is provided with by negative crescent moon lens B-1 successively, the first gummed group that biconvex lens B-2 and biconcave lens B-3 touches and biconcave lens B-4, the second gummed group that described compensating group C is provided with biconvex lens C-1 and is touched by negative crescent moon lens C-2 and biconvex lens C-3, described rear fixing group of E is provided with negative crescent moon lens E-1, positive crescent moon lens E-2 and by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touches.
2. high-resolution large-viewing-field zoom pick-up lens according to claim 1, it is characterized in that: the airspace before described between fixing group A and zoom group B is 5.1 ~ 100.5mm, airspace between described zoom group B and compensating group C is 148.2 ~ 5.4mm, and the airspace between described compensating group C and rear fixing group of E is 6.7 ~ 54.1mm.
3. high-resolution large-viewing-field zoom pick-up lens according to claim 1 and 2, it is characterized in that: the airspace between the negative crescent moon lens A-1 before described in fixing group A and positive crescent moon lens A-2 is 1.1mm, airspace between described positive crescent moon lens A-2 and biconvex lens A-3 is 0.6mm, and the airspace between described biconvex lens A-3 and positive crescent moon lens A-4 is 0.2mm; Airspace between the first gummed group of being touched by negative crescent moon lens B-1, biconvex lens B-2 and biconcave lens B-3 in described zoom group B and biconcave lens B-4 is 4.2mm; Biconvex lens C-1 in described compensating group C and the airspace between the second gummed group of being touched by negative crescent moon lens C-2 and biconvex lens C-3 are 0.2mm; Negative crescent moon lens E-1 in described rear fixing group of E and the airspace between positive crescent moon lens E-2 are 0.3mm, and the airspace between described positive crescent moon lens E-2 and the 3rd gummed group of being touched by biconvex lens E-3, biconcave lens E-4 and biconvex lens E-5 is 13.2mm.
4. high-resolution large-viewing-field zoom pick-up lens according to claim 1, it is characterized in that: the physical construction of described camera lens is provided with focus pack successively along light direction, zoom assembly, zoom cam pack, compensation assembly, rear fixation kit and camera assembly, described camera lens front portion is provided with Power focus mechanism, power zoom mechanism is provided with in the middle part of described camera lens, described camera lens rear portion is provided with electronic diaphragm mechanism, described Power focus mechanism, power zoom mechanism, electronic diaphragm mechanism is respectively around the surrounding being distributed in camera lens, described Power focus organization establishes has a focus variable rheostat, described power zoom organization establishes has a zoom potentiometer, described electronic diaphragm mechanism is provided with a diaphragm potentiometer.
5. high-resolution large-viewing-field zoom pick-up lens according to claim 4, it is characterized in that: group trim ring before described focus pack comprises, front arrangement of mirrors cylinder and focusing body tube, before described, group trim ring will bear crescent moon lens A-1, positive crescent moon lens A-2, biconvex lens A-3, positive crescent moon lens A-4 is placed in front arrangement of mirrors cylinder respectively, described front arrangement of mirrors cylinder by the uniform focusing guide pin component placement of upper and lower two 180o in focusing body tube, group spacer ring I before being provided with between described positive crescent moon lens A-2 and biconvex lens A-3, group spacer ring II before being provided with between described biconvex lens A-3 and positive crescent moon lens A-4, described Power focus mechanism comprises focus motor, focus variable rheostat and microswitch, described focus motor is placed in by focus motor frame and focuses on body tube, described microswitch is placed on focusing body tube by focusing on limiting bracket I and focusing on limiting bracket II, described focusing body tube offers the linear skewed slot that precision machined two 180o are uniform, described linear skewed slot matches with corresponding focusing guide pin assembly, described focusing body tube is arranged with the focusing cam settled by focusing on cam trim ring, the motor shaft of described focus motor is provided with the focusing gear with the gears meshing focused on cam, described focusing gear also with the potentiometer gears meshing on focus variable rheostat.
6. high-resolution large-viewing-field zoom pick-up lens according to claim 4, is characterized in that: described zoom assembly comprises zoom Mobile base, described zoom mirror group is placed on zoom Mobile base by joint bolt; Described compensation assembly comprises compensation Mobile base, and described compensating glass group is placed in by joint bolt and compensates on Mobile base; Described zoom Mobile base and compensate Mobile base and to be installed on three guide rods and to be slidably matched, described guide rod is fixed on body tube by cam cover, described body tube is arranged with the zoom cam of being locked by zoom bearing and zoom cam trim ring, described zoom cam is processed with two zooms, compensated curve groove by the requirement of the optical zoom equation of motion, described zoom, compensated curve groove respectively with zoom guide pin assembly and compensate guide pin assembly zoom cam and zoom Mobile base, compensate Mobile base and be linked together; Described power zoom mechanism is made up of zoom motor, zoom potentiometer and microswitch, described zoom motor, zoom potentiometer are placed on body tube by zoom motor support and column, described microswitch is placed on body tube by zoom limiting bracket I and zoom limiting bracket II, the motor shaft of described zoom motor is provided with respectively with the zoom gear of the potentiometer gears meshing on the gear on zoom cam and zoom potentiometer.
7. high-resolution large-viewing-field zoom pick-up lens according to claim 4, it is characterized in that: described rear fixation kit comprises diaphragm seat and rear body tube, described negative crescent moon lens E-1, positive crescent moon lens E-2 is placed in diaphragm seat respectively, described by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touch to be placed in rear body tube and to be placed on diaphragm seat by screw attachment, rear group of spacer ring is provided with between described negative crescent moon lens E-1 and positive crescent moon lens E-2, described positive crescent moon lens E-2 is pressed in diaphragm seat by rear group of trim ring I, described by biconvex lens E-3, the 3rd gummed group that biconcave lens E-4 and biconvex lens E-5 touches is pressed in rear body tube by rear group of trim ring II, described electronic diaphragm mechanism is by Iris motor, diaphragm potentiometer and the microswitch composition for controlling diaphragm openings of sizes position, described microswitch is placed on diaphragm seat by diaphragm limiting bracket I and diaphragm limiting bracket II, described diaphragm seat is arranged with the aperture setting ring compressed by aperture setting ring trim ring, described aperture setting ring is provided with diaphragm switch plectrum by screw attachment, described Iris motor is placed on diaphragm seat by Iris motor frame, the motor shaft of described Iris motor is provided with the diaphragm gear with the potentiometer gears meshing on diaphragm potentiometer, described diaphragm gear by with the gears meshing on aperture setting ring after drive aperture setting ring to rotate, described aperture setting ring is dialled nail by the diaphragm be placed on diaphragm rotating ring and is driven diaphragm rotating ring to rotate, described diaphragm rotating ring is pressed in diaphragm seat by diaphragm rotating ring trim ring, described diaphragm rotating ring drives diaphragm sheet to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581692.3U CN204903850U (en) | 2015-08-05 | 2015-08-05 | Continuous varifocal camera lens in big visual field of high resolution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581692.3U CN204903850U (en) | 2015-08-05 | 2015-08-05 | Continuous varifocal camera lens in big visual field of high resolution |
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| CN204903850U true CN204903850U (en) | 2015-12-23 |
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| CN201520581692.3U Withdrawn - After Issue CN204903850U (en) | 2015-08-05 | 2015-08-05 | Continuous varifocal camera lens in big visual field of high resolution |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005137A (en) * | 2015-08-05 | 2015-10-28 | 福建福光股份有限公司 | High-resolution large-field-of-view continuous zoom pick-up lens and control method thereof |
| CN106154518A (en) * | 2016-08-17 | 2016-11-23 | 福建福光股份有限公司 | Big target surface high-resolution zoom digital camera lens |
| CN109758095A (en) * | 2019-01-31 | 2019-05-17 | 广东欧谱曼迪科技有限公司 | The non-automatic focusing feedback-type fluorescence navigation system of one kind and exciting light self-regulating method |
-
2015
- 2015-08-05 CN CN201520581692.3U patent/CN204903850U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005137A (en) * | 2015-08-05 | 2015-10-28 | 福建福光股份有限公司 | High-resolution large-field-of-view continuous zoom pick-up lens and control method thereof |
| CN105005137B (en) * | 2015-08-05 | 2017-06-16 | 福建福光股份有限公司 | High-resolution large-viewing-field zoom pick-up lens and its control method |
| CN106154518A (en) * | 2016-08-17 | 2016-11-23 | 福建福光股份有限公司 | Big target surface high-resolution zoom digital camera lens |
| CN106154518B (en) * | 2016-08-17 | 2018-08-21 | 福建福光股份有限公司 | Big target surface high-resolution zoom digital camera lens |
| CN109758095A (en) * | 2019-01-31 | 2019-05-17 | 广东欧谱曼迪科技有限公司 | The non-automatic focusing feedback-type fluorescence navigation system of one kind and exciting light self-regulating method |
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