CN104267486B - 25.2 zoom high definition television pick-up lens again - Google Patents
25.2 zoom high definition television pick-up lens again Download PDFInfo
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- CN104267486B CN104267486B CN201410540350.7A CN201410540350A CN104267486B CN 104267486 B CN104267486 B CN 104267486B CN 201410540350 A CN201410540350 A CN 201410540350A CN 104267486 B CN104267486 B CN 104267486B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/17—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +--
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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Abstract
The present invention relates to a kind of 25.2 times of zoom high definition television pick-up lenss, its optical texture is fixing group before being sequentially provided with along light direction, zoom group, compensation group, iris assembly and after fix group, before described, fixing group is sequentially provided with glued group touched by negative crescent moon lens and biconvex lens, biconvex lens and biconcave lens, described zoom group is sequentially provided with biconcave lens and glued group touched by biconcave lens and biconvex lens, described compensation group is provided with glued group touched by biconcave lens and positive crescent moon lens, after described, fixing group front portion is sequentially provided with biconvex lens, positive crescent moon lens, by biconvex lens and glued group of biconcave lens contiguity and positive crescent moon lens, rear portion is sequentially provided with negative crescent moon lens and positive crescent moon lens. this pick-up lens has that zoom is relatively larger, amplification is higher, definition is higher, can with advantages such as high accuracy Camera Matchs, it may be achieved the functions such as electric continuous zooming heat, Power focus, electronic light modulation, focal length Real-time Feedback.
Description
Technical field
The present invention relates to the optical pick-up apparatus of video technique, particularly a kind of 25.2 times of zoom high definition television pick-up lenss, possess and big visual field is done specific search can make again zonule amplifying observation.
Background technology
Traditional mechanical compensation formula varifocal lens's ubiquity caused that varifocal lens's zoom ratio is little, amplification is relatively low, definition is poor by the factor such as overall volume, manufacturing process, can not with shortcomings such as high accuracy Camera Matchs.
Summary of the invention
In order to overcome the deficiency of existing varifocal lens, it is an object of the invention to provide a kind of 25.2 times of zoom high definition television pick-up lenss, its zoom is relatively larger, amplification is higher, definition is higher, can with high accuracy Camera Match.
To achieve these goals, the technical scheme is that a kind of 25.2 times of zoom high definition television pick-up lenss, the optical texture of described pick-up lens along light direction be sequentially provided with focal power be positive before fixing group A, focal power is negative zoom group B, focal power is negative compensation group C, iris assembly D and focal power are rear fixing group of positive E, before described, fixing group A is sequentially provided with the by negative crescent moon lens A-1 and biconvex lens A-2 contiguity first glued group, biconvex lens A-3 and biconcave lens A-4, described zoom group B is sequentially provided with biconcave lens B-1 and by the second glued group of biconcave lens B-2 and biconvex lens B-3 contiguity, described compensation group C is provided with the 3rd glued group touched by biconcave lens C-1 and positive crescent moon lens C-2, after described, fixing group E front portion is sequentially provided with biconvex lens E-1, positive crescent moon lens E-2, by the 4th of biconvex lens E-3 and biconcave lens E-4 contiguity the glued group and positive crescent moon lens E-5, rear portion is sequentially provided with negative crescent moon lens E-6 and positive crescent moon lens E-7.
Further, before described, the airspace between fixing group A and zoom group B is 1.7～83.5mm, and the airspace between described zoom group B and compensation group C is 71.5～3.1mm, and the airspace between described compensation group C and rear fixing group E is 21.5～3.2mm.
Further, before described, the airspace between the first glued group and the biconvex lens A-3 in fixing group A is 0.2mm, and the airspace between described biconvex lens A-3 and biconcave lens A-4 is 2.2mm.
Further, the airspace between the glued group of the biconcave lens B-1 in described zoom group B and second is 1.6mm.
Further, after described, the airspace between the biconvex lens E-1 in fixing group E and positive crescent moon lens E-2 is 0.2mm, airspace between the glued group of described positive crescent moon lens E-2 and the 4th is 0.2mm, airspace between described 4th glued group and positive crescent moon lens E-5 is 0.2mm, airspace between described positive crescent moon lens E-5 and negative crescent moon lens E-6 is 6.0mm, and the airspace between described negative crescent moon lens E-6 and positive crescent moon lens E-7 is 24.5mm.
Further, the frame for movement of described pick-up lens includes front fixation kit, zoom assembly, zoom cam pack, compensates assembly, rear fixation kit, camera assembly, panel and power panel, the side of anterior week of described pick-up lens is provided with Power focus mechanism, the middle part week side of described pick-up lens is provided with electric continuous zooming heat mechanism, and the rear portion week side of described pick-up lens is provided with electronic dimming mechanism.
Further, described electric continuous zooming heat mechanism is provided with the zoom potentiometer realizing focal length Real-time Feedback function, and described zoom potentiometer is precision potentiator.
Further, described front fixation kit includes front group of lens barrel and focusing barrel, described biconcave lens A-4, biconvex lens A-3, the first glued group are sequentially loaded in front group of lens barrel and by front group of trim ring I compression, it is provided with front group of spacer ring I between described first glued group and biconvex lens A-3, being provided with front group of spacer ring II between described biconvex lens A-3 and biconcave lens A-4, before described, group lens barrel is pressed in focusing barrel by front group of trim ring II, described Power focus mechanism includes focus motor, the focusing Hall element of focusing barrel and accurately control focal position, described focus motor is placed on body tube by focus motor frame, described focusing Hall element is arranged on body tube by focusing on limited support, described body tube offers three Precision Machining and guide groove 120 ° uniform, the motor shaft of described focus motor is provided with focusing gear, described focusing barrel is provided with and focuses on the focusing ring that gear is meshed, described focusing barrel week side is fixed with three focusing 120 ° uniform and dials nail, described focusing is dialled nail and is matched with the guide groove on body tube.
Further, described zoom assembly and compensation assembly are installed on three guide rods and can be smoothly performed slip, described three guide rods are separately fixed on body tube by cam cover, the zoom cam of described zoom cam pack is fixed in body tube by cam cover, offering precision machined two curved grooves on described zoom cam, described body tube is connected with being connected base; Described electric continuous zooming heat mechanism includes zoom motor, zoom cam and for accurately controlling the zoom Hall element of length Jiao position, described zoom Hall element is arranged on body tube by zoom limited support, described zoom motor is arranged on body tube by zoom motor frame, and the motor shaft of described zoom motor is provided with the zoom gear being meshed with zoom cam, zoom potentiometer gear respectively.
Further, described rear fixation kit includes diaphragm seat and rear group of lens barrel, described biconvex lens E-1, positive crescent moon lens E-2, the 4th glued group, positive crescent moon lens E-5 are installed in diaphragm seat and by rear group of trim ring I compression successively, it is provided with rear group of spacer ring I between described biconvex lens E-1 and positive crescent moon lens E-2, it is provided with rear group of spacer ring II between the glued group of described positive crescent moon lens E-2 and the 4th, between the described 4th glued group and positive crescent moon lens E-5, is provided with rear group of spacer ring III;Described negative crescent moon lens E-6 and positive crescent moon lens E-7 is respectively and fixedly installed in rear group of lens barrel respectively through rear group of trim ring II, rear group trim ring II, described electronic dimming mechanism includes Iris motor, aperture setting ring, diaphragm rotating ring, diaphragm sheet and the diaphragm limit switch for accurately control diaphragm openings of sizes position, described diaphragm limit switch is arranged on diaphragm seat by diaphragm limited support, described Iris motor is arranged on diaphragm seat by Iris motor frame, the motor shaft of described Iris motor is provided with the diaphragm gear being meshed with aperture setting ring, described aperture setting ring is pressed on diaphragm seat by aperture setting ring trim ring, described diaphragm rotating ring is fixed with the diaphragm that head matches with aperture setting ring inboard groove and dials nail, 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 invention have the advantages that tetra-constituent elements of rear fixing group of E that the optical texture of this pick-up lens is negative compensation group C by focal power to be positive front fixing group A, focal power be negative zoom group B, focal power and focal power is positive form, have that zoom is relatively larger, amplification is higher, definition is higher, can with advantages such as high accuracy Camera Matchs, it may be achieved the functions such as electric continuous zooming heat, Power focus, electronic light modulation, focal length Real-time Feedback.
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Accompanying drawing explanation
Fig. 1 is the optical texture schematic diagram of the embodiment of the present invention.
Fig. 2 is the frame for movement front view of the embodiment of the present invention.
Fig. 3 is the frame for movement right view of the embodiment of the present invention.
Fig. 4 is the frame for movement left view of the embodiment of the present invention.
Fig. 5 is the frame for movement axonometric chart of the embodiment of the present invention.
Fig. 6 is the Power focus mechanism front view of the embodiment of the present invention.
Fig. 7 is the Power focus mechanism left view of the embodiment of the present invention.
Fig. 8 is the Power focus mechanism axonometric chart of the embodiment of the present invention.
Fig. 9 is the power zoom mechanism front view of the embodiment of the present invention.
Figure 10 is the power zoom mechanism right view of the embodiment of the present invention.
Figure 11 is the power zoom mechanism axonometric chart of the embodiment of the present invention.
Figure 12 is the electronic dimming mechanism front view of the embodiment of the present invention.
Figure 13 is the electronic dimming mechanism right view of the embodiment of the present invention.
Figure 14 is the electronic dimming mechanism axonometric chart of the embodiment of the present invention.
In Fig. 1: fixing negative crescent moon lens A-1, A-2. biconvex lens A-2, A-3. biconvex lens A-3, the A-4. biconcave lens A-4 of group A, A-1. before A.; B. zoom group B, B-1. biconcave lens B-1, B-2. biconcave lens B-2, B-3. biconvex lens B-3; C. the positive crescent moon lens C-2 of compensation group C, C-1. biconcave lens C-1, C-2.; D. iris assembly D; E. fixing group E, E-1. biconvex 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. positive crescent moon lens E-5, E-6. bear the positive crescent moon lens E-7 of crescent moon lens E-6, E-7. afterwards.
In Fig. 2 ~ 5: fixation kit before 2-1., 2-2. zoom assembly, 2-3. zoom cam pack, 2-4. compensates assembly, fixation kit after 2-5., 2-6. camera assembly, 2-7. panel, 2-8. power panel, 2-9. Power focus mechanism, 2-10. electric continuous zooming heat mechanism, the electronic diaphragm mechanism of 2-11..
In Fig. 6 ~ 8: 3-1. bears crescent moon lens A-1,3-2. biconvex lens A-2,3-3. biconvex lens A-3,3-4. biconcave lens A-4, trim ring I is organized before 3-5., trim ring II, 3-7. focusing ring, 3-8. focusing barrel is organized before 3-6., 3-9. focuses on and dials nail, organize spacer ring I before 3-10., before 3-11., organize lens barrel, before 3-12., organize spacer ring II, 3-13. focus motor frame, 3-14. focuses on gear, and 3-15. focuses on limited support, and 3-16. focuses on Hall element, 3-17. focus magnet seat, 3-18. focus magnet, 3-19. focus motor column, 3-20. focus motor.
In Fig. 9 ~ 11: 4-1. body tube, 4-2. cam cover, 4-3. guide rod, 4-4. zoom cam, 4-5. connects base, 4-6. zoom magnetic receiver, 4-7. zoom Magnet, 4-8. zoom limited support, 4-9. zoom Hall element, 4-10. zoom potentiometer, 4-11. zoom potentiometer gear, 4-12. zoom gear, 4-13. zoom motor frame, 4-14. zoom motor.
In Figure 12 ~ 14: 5-1. biconvex lens E-1, the positive crescent moon lens E-2 of 5-2., 5-3. biconvex lens E-3, 5-4. biconcave lens E-4, the positive crescent moon lens E-5 of 5-5., 5-6. diaphragm sheet, 5-7. diaphragm seat, 5-8. diaphragm rotating ring trim ring, 5-9. diaphragm rotating ring, 5-10. diaphragm seat, 5.11 diaphragms dial nail, 5-12. aperture setting ring, 5-13. aperture setting ring trim ring, trim ring II is organized after 5-14., 5-15. bears crescent moon lens E-6, lens barrel is organized after 5-16., the positive crescent moon lens E-7 of 5-17., trim ring III is organized after 5-18., trim ring I is organized after 5-19., spacer ring III is organized after 5-20., spacer ring II is organized after 5-21., spacer ring I is organized after 5-22., 5-23. switchs plectrum, 5-24. diaphragm limited support, 5-25. diaphragm limit switch, 5-26. diaphragm gear, 5-27. Iris motor frame, 5-28. Iris motor, 5-29. diaphragm third wheel.
Detailed description of the invention
As shown in Figure 1, a kind of 25.2 times of zoom high definition television pick-up lenss, the optical texture of described pick-up lens along light direction be sequentially provided with focal power be positive before fixing group A, focal power is negative zoom group B, focal power is negative compensation group C, iris assembly D and focal power are rear fixing group of positive E, before described, fixing group A is sequentially provided with the by negative crescent moon lens A-1 and biconvex lens A-2 contiguity first glued group, biconvex lens A-3 and biconcave lens A-4, described zoom group B is sequentially provided with biconcave lens B-1 and by the second glued group of biconcave lens B-2 and biconvex lens B-3 contiguity, described compensation group C is provided with the 3rd glued group touched by biconcave lens C-1 and positive crescent moon lens C-2, after described, fixing group E front portion is sequentially provided with biconvex lens E-1, positive crescent moon lens E-2, by the 4th of biconvex lens E-3 and biconcave lens E-4 contiguity the glued group and positive crescent moon lens E-5, rear portion is sequentially provided with negative crescent moon lens E-6 and positive crescent moon lens E-7.
In the present embodiment, before described, the airspace between fixing group A and zoom group B is 1.7～83.5mm, airspace between described zoom group B and compensation group C is 71.5～3.1mm, and the airspace between described compensation group C and rear fixing group E is 21.5～3.2mm.
In the present embodiment, before described, the airspace between the first glued group and the biconvex lens A-3 in fixing group A is 0.2mm, and the airspace between described biconvex lens A-3 and biconcave lens A-4 is 2.2mm.
In the present embodiment, the airspace between the glued group of the biconcave lens B-1 in described zoom group B and second is 1.6mm.
In the present embodiment, after described, the airspace between the biconvex lens E-1 in fixing group E and positive crescent moon lens E-2 is 0.2mm, airspace between the glued group of described positive crescent moon lens E-2 and the 4th is 0.2mm, airspace between described 4th glued group and positive crescent moon lens E-5 is 0.2mm, airspace between described positive crescent moon lens E-5 and negative crescent moon lens E-6 is 6.0mm, and the airspace between described negative crescent moon lens E-6 and positive crescent moon lens E-7 is 24.5mm.
In the present embodiment, said lens fabric the optical texture become has reached following optical index: (1) focal length: f '=13.5mm～340mm, and multiple proportions reaches 25.2 times;(2) angle of visual field scope: 25.05 °～0.99 °; (3) short burnt relative aperture: D/f ' is better than 1/3; (4) resolution of lens: adapt to 1/3 " mega pixel ccd video camera or cmos camera; (5) operating temperature :-40 DEG C～+60 DEG C; (6) light path overall length is less than 200mm; (7) gross weight is less than 2.5Kg.
As shown in Fig. 2 ~ 5, the frame for movement of described pick-up lens is followed successively by front fixation kit 2-1 from left to right, zoom assembly 2-2, zoom cam pack 2-3, compensate assembly 2-4, rear fixation kit 2-5, camera assembly 2-6, panel 2-7, power panel 2-8, the front portion of described pick-up lens is provided with Power focus mechanism 2-9, the middle part of described pick-up lens is provided with electric continuous zooming heat mechanism 2-10, the rear portion of described pick-up lens is provided with electronic dimming mechanism 2-11, the rear portion of described pick-up lens can " mega pixel ccd video camera docks with 1/3, described Power focus mechanism 2-9, electric continuous zooming heat mechanism 2-10 and electronic dimming mechanism 2-11 is respectively around all sides being distributed in pick-up lens. wherein, described electric continuous zooming heat mechanism 2-10 is provided with a zoom potentiometer 4-10 realizing focal length Real-time Feedback function, and described zoom potentiometer 4-10 is precision potentiator, it is achieved focal length Real-time Feedback function.
As shown in Fig. 6 ~ 8, described front fixation kit 2-1 is by biconcave lens A-4(3-4 with front group of trim ring I (3-5)), biconvex lens A-3(3-3), biconvex lens A-2(3-2) and negative crescent moon lens A-1(3-1) the first glued group of touching is respectively charged in front group of lens barrel 3-11 and is pressed in focusing barrel 3-8 by front group of trim ring II (3-6), described negative crescent moon lens A-1(3-1) it is be pressed in front group of lens barrel 3-11 by front group of trim ring I (3-5), described first glued group and biconvex lens A-3(3-3) between be provided with front group of spacer ring I (3-10), described biconvex lens A-3(3-3) and biconcave lens A-4(3-4) between be provided with front group of spacer ring II (3-12). described Power focus mechanism 2-9 includes focus motor 3-20, the focusing Hall element 3-16 of focusing barrel 3-8 and accurately control focal position, described focus motor 3-20 is placed on body tube 4-1 by focus motor frame 3-13, described focusing Hall element 3-16 is arranged on body tube 4-1 by focusing on limited support 3-15, described body tube 4-1 offers three Precision Machining and guide groove 120 ° uniform, the motor shaft of described focus motor 3-20 is provided with focusing gear 3-14, described focusing barrel 3-8 is provided with focusing ring 3-7, described focusing gear 3-14 rotates by driving focusing ring 3-7 with focusing ring 3-7 gear after engaging, described focusing ring 3-7 drives focusing barrel 3-8, described focusing barrel 3-8 week side is fixed with three focusing 120 ° uniform and dials nail 3-9, dial nail 3-9 and match with the guide groove on body tube 4-1 by focusing on and to be converted to axially-movable with the relative body tube 4-1 of guided focused lens barrel 3-8 by screw, thus driving moving forward and backward of front fixation kit 2-1, realize the focusing function to far and near target.
As shown in Fig. 9 ~ 11, described zoom assembly 2-2 and compensation assembly 2-4 is installed on three guide rod 4-3 and can be smoothly performed slip, described three guide rod 4-3 are separately fixed on body tube 4-1 by cam cover 4-2, the zoom cam 4-4 of described zoom cam pack 2-3 inserts in body tube 4-1 and is fixed in body tube 4-1 by cam cover 4-2, ensure that zoom cam 4-4 flexible rotating in body tube 4-1 must not have play by researching, described zoom cam 4-4 offers precision machined two curved grooves, described body tube 4-1 is connected with being connected base 4-5.Described electric continuous zooming heat mechanism 2-10 includes zoom motor 4-14, zoom cam 4-4 and the zoom Hall element 4-9 for accurately control length Jiao position, described zoom Hall element 4-9 is arranged on body tube 4-1 by zoom limited support 4-8, described zoom motor 4-14 is arranged on body tube 4-1 by zoom motor frame 4-13, the motor shaft of described zoom motor 4-14 is provided with zoom gear 4-12, described zoom gear 4-12 rotates by driving zoom cam 4-4 with zoom cam 4-4 gear after engaging, described zoom cam 4-4 drives zoom assembly 2-2 by rotating and compensates assembly 2-4 along zoom cam 4-4 curved groove relative movement, thus realizing the change of lens focus, complete zooming procedure. simultaneously, described zoom gear 4-12 rotates by driving zoom potentiometer gear 4-11 with zoom potentiometer gear 4-11 after engaging, the rotation of described zoom potentiometer gear 4-11 makes the resistance of zoom potentiometer 4-10 change, thus, form man-to-man relation between focal length and zoom potentiometer 4-10 resistance, the Real-time Feedback function of focal length can be realized by this approach sensor.
As shown in Figure 12 ~ 14, described rear fixation kit 2-5 is by biconvex lens E-1(5-1), positive crescent moon lens E-2(5-2), biconvex lens E-3(5-3) and biconcave lens E-4(5-4) the 4th glued group touched, positive crescent moon lens E-5(5-5) it is respectively arranged in diaphragm seat 5-7, described positive crescent moon lens E-5(5-5) it is pressed in diaphragm seat 5-10 by rear group of trim ring I (5-19), described biconvex lens E-1(5-1) and positive crescent moon lens E-2(5-2) between be provided with rear group of spacer ring I (5-22), described positive crescent moon lens E-2(5-2) and the 4th glued group between be provided with rear group of spacer ring II (5-21), described 4th glued group and positive crescent moon lens E-5(5-5) between be provided with rear group of spacer ring III (5-20), described rear fixation kit 2-5 is also by negative crescent moon lens E-6(5-15) and positive crescent moon lens E-7(5-17) be respectively charged in rear group of lens barrel 5-16 by rear group of trim ring II (5-14), rear group trim ring II (5-18). described electronic dimming mechanism 2-11 includes Iris motor 5-28, aperture setting ring 5-12, diaphragm rotating ring 5-9, diaphragm sheet 5-6 and the diaphragm limit switch 5-25 for accurately control diaphragm openings of sizes position, described diaphragm limit switch 5-25 is arranged on diaphragm seat 5-7 by diaphragm limited support 5-24, described Iris motor 5-28 is arranged on diaphragm seat 5-7 by Iris motor frame 5-27, the motor shaft of described Iris motor 5-28 is provided with diaphragm gear 5-26, described diaphragm gear 5-26 rotates by driving aperture setting ring 5-12 with aperture setting ring 5-12 gear after engaging, described aperture setting ring 5-12 is pressed on diaphragm seat 5-7 by aperture setting ring trim ring 5-13, described aperture setting ring 5-12 dials nail 5-11 by the diaphragm being fixed on diaphragm rotating ring 5-9 and drives diaphragm rotating ring 5-9 to rotate, described diaphragm rotating ring 5-9 is pressed in diaphragm seat 5-7 by diaphragm rotating ring trim ring 5-8, described diaphragm rotating ring 5-9 drives diaphragm sheet 5-6 to rotate, thus controlling the change of aperture openings size, realize the process of Electronic control aperture size.
The foregoing is only presently preferred embodiments of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of the present invention.
Claims (10)
1. one kind 25.2 times zoom high definition television pick-up lenss, it is characterized in that: the optical texture of described pick-up lens along light direction be sequentially provided with focal power be positive before fixing group A, focal power is negative zoom group B, focal power is negative compensation group C, iris assembly D and focal power are rear fixing group of positive E, before described, fixing group A is sequentially provided with the by negative crescent moon lens A-1 and biconvex lens A-2 contiguity first glued group, biconvex lens A-3 and biconcave lens A-4, described zoom group B is sequentially provided with biconcave lens B-1 and by the second glued group of biconcave lens B-2 and biconvex lens B-3 contiguity, described compensation group C is provided with the 3rd glued group touched by biconcave lens C-1 and positive crescent moon lens C-2, after described, fixing group E front portion is sequentially provided with biconvex lens E-1, positive crescent moon lens E-2, by the 4th of biconvex lens E-3 and biconcave lens E-4 contiguity the glued group and positive crescent moon lens E-5, rear portion is sequentially provided with negative crescent moon lens E-6 and positive crescent moon lens E-7.
2. 25.2 times of zoom high definition television pick-up lenss according to claim 1, it is characterized in that: before described, the airspace between fixing group A and zoom group B is 1.7～83.5mm, airspace between described zoom group B and compensation group C is 71.5～3.1mm, and the airspace between described compensation group C and rear fixing group E is 21.5～3.2mm.
3. 25.2 times of zoom high definition television pick-up lenss according to claim 1 and 2, it is characterized in that: before described, the airspace between the first glued group and the biconvex lens A-3 in fixing group A is 0.2mm, and the airspace between described biconvex lens A-3 and biconcave lens A-4 is 2.2mm.
4. 25.2 times of zoom high definition television pick-up lenss according to claim 1 and 2, it is characterised in that: the airspace between the glued group of biconcave lens B-1 and second in described zoom group B is 1.6mm.
5. 25.2 times of zoom high definition television pick-up lenss according to claim 1 and 2, it is characterized in that: after described, the airspace between the biconvex lens E-1 in fixing group E and positive crescent moon lens E-2 is 0.2mm, airspace between the glued group of described positive crescent moon lens E-2 and the 4th is 0.2mm, airspace between described 4th glued group and positive crescent moon lens E-5 is 0.2mm, airspace between described positive crescent moon lens E-5 and negative crescent moon lens E-6 is 6.0mm, airspace between described negative crescent moon lens E-6 and positive crescent moon lens E-7 is 24.5mm.
6. 25.2 times of zoom high definition television pick-up lenss according to claim 1, it is characterized in that: the frame for movement of described pick-up lens includes front fixation kit, zoom assembly, zoom cam pack, compensates assembly, rear fixation kit, camera assembly, panel and power panel, the side of anterior week of described pick-up lens is provided with Power focus mechanism, the middle part week side of described pick-up lens is provided with electric continuous zooming heat mechanism, and the rear portion week side of described pick-up lens is provided with electronic dimming mechanism.
7. 25.2 times of zoom high definition television pick-up lenss according to claim 6, it is characterised in that: described electric continuous zooming heat mechanism is provided with the zoom potentiometer realizing focal length Real-time Feedback function, and described zoom potentiometer is precision potentiator.
8. 25.2 times of zoom high definition television pick-up lenss according to claim 6, it is characterized in that: described front fixation kit includes front group of lens barrel and focusing barrel, described biconcave lens A-4, biconvex lens A-3, the first glued group are sequentially loaded in front group of lens barrel and by front group of trim ring I compression, it is provided with front group of spacer ring I between described first glued group and biconvex lens A-3, being provided with front group of spacer ring II between described biconvex lens A-3 and biconcave lens A-4, before described, group lens barrel is pressed in focusing barrel by front group of trim ring II, described Power focus mechanism includes focus motor, the focusing Hall element of focusing barrel and accurately control focal position, described focus motor is placed on body tube by focus motor frame, described focusing Hall element is arranged on body tube by focusing on limited support, described body tube offers three Precision Machining and guide groove 120 ° uniform, the motor shaft of described focus motor is provided with focusing gear, described focusing barrel is provided with and focuses on the focusing ring that gear is meshed, described focusing barrel week side is fixed with three focusing 120 ° uniform and dials nail, described focusing is dialled nail and is matched with the guide groove on body tube.
9. 25.2 times of zoom high definition television pick-up lenss according to claim 6, it is characterized in that: described zoom assembly and compensation assembly are installed on three guide rods and can be smoothly performed slip, described three guide rods are separately fixed on body tube by cam cover, the zoom cam of described zoom cam pack is fixed in body tube by cam cover, offering precision machined two curved grooves on described zoom cam, described body tube is connected with being connected base; Described electric continuous zooming heat mechanism includes zoom motor, zoom cam and for accurately controlling the zoom Hall element of length Jiao position, described zoom Hall element is arranged on body tube by zoom limited support, described zoom motor is arranged on body tube by zoom motor frame, and the motor shaft of described zoom motor is provided with the zoom gear being meshed with zoom cam, zoom potentiometer gear respectively.
10. 25.2 times of zoom high definition television pick-up lenss according to claim 6, it is characterized in that: described rear fixation kit includes diaphragm seat and rear group of lens barrel, described biconvex lens E-1, positive crescent moon lens E-2, the 4th glued group, positive crescent moon lens E-5 are installed in diaphragm seat and by rear group of trim ring I compression successively, it is provided with rear group of spacer ring I between described biconvex lens E-1 and positive crescent moon lens E-2, it is provided with rear group of spacer ring II between the glued group of described positive crescent moon lens E-2 and the 4th, between the described 4th glued group and positive crescent moon lens E-5, is provided with rear group of spacer ring III, described negative crescent moon lens E-6 and positive crescent moon lens E-7 is respectively and fixedly installed in rear group of lens barrel respectively through rear group of trim ring II, rear group trim ring II, described electronic dimming mechanism includes Iris motor, aperture setting ring, diaphragm rotating ring, diaphragm sheet and the diaphragm limit switch for accurately control diaphragm openings of sizes position, described diaphragm limit switch is arranged on diaphragm seat by diaphragm limited support, described Iris motor is arranged on diaphragm seat by Iris motor frame, the motor shaft of described Iris motor is provided with the diaphragm gear being meshed with aperture setting ring, described aperture setting ring is pressed on diaphragm seat by aperture setting ring trim ring, described diaphragm rotating ring is fixed with the diaphragm that head matches with aperture setting ring inboard groove and dials nail, described diaphragm rotating ring is pressed in diaphragm seat by diaphragm rotating ring trim ring, described diaphragm rotating ring drives diaphragm sheet to rotate.
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| CN201410540350.7A CN104267486B (en) | 2014-10-14 | 2014-10-14 | 25.2 zoom high definition television pick-up lens again |
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| CN201410540350.7A CN104267486B (en) | 2014-10-14 | 2014-10-14 | 25.2 zoom high definition television pick-up lens again |
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| CN104267486B true CN104267486B (en) | 2016-06-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116526B (en) * | 2015-09-21 | 2017-08-25 | 福建福光股份有限公司 | High zoom ratio continuous vari-focus telephotography camera lens and its control method |
| CN106125270A (en) * | 2016-08-17 | 2016-11-16 | 福建福光股份有限公司 | High-resolution miniaturization telephotography camera lens |
| CN107065154B (en) * | 2017-06-08 | 2022-11-08 | 西安中科飞图光电科技有限公司 | Compact continuous zoom optical system |
| 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 |
| CN111077630B (en) * | 2018-10-18 | 2024-01-05 | 扬明光学股份有限公司 | Lens device and method for manufacturing the same |
| CN110542974A (en) * | 2019-01-25 | 2019-12-06 | 广州长步道光电科技有限公司 | Realize high-accuracy zoom industrial lens structure |
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