CN104049347B - Compact super large image planes continuous magnification lens - Google Patents
Compact super large image planes continuous magnification lens Download PDFInfo
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- CN104049347B CN104049347B CN201410277347.0A CN201410277347A CN104049347B CN 104049347 B CN104049347 B CN 104049347B CN 201410277347 A CN201410277347 A CN 201410277347A CN 104049347 B CN104049347 B CN 104049347B
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Abstract
The present invention relates to a kind of compact super large image planes continuous magnification lens, being provided with focal power along light direction is positive front fixed mirror group, focal power is negative zoom mirror group, focal power is negative compensating glass group, iris and focal power are positive rear fixed mirror group, described front fixed mirror group is provided with positive selenodont eyeglass and glued group touched by negative selenodont eyeglass and positive selenodont eyeglass, described zoom mirror group is provided with biconvex eyeglass, glued group and negative selenodont eyeglass by concave-concave eyeglass with positive selenodont eyeglass contiguity, described compensating glass group is provided with glued group touched by positive selenodont eyeglass and negative selenodont eyeglass, described rear fixed mirror group is provided with biconvex eyeglass, glued group touched by negative selenodont eyeglass and biconvex eyeglass, planoconcave lens, positive selenodont eyeglass, by glued group of planoconcave lens and biconvex eyeglass contiguity and by with biconvex eyeglass contiguity glued group of concave-concave eyeglass. instant invention overcomes the defect that the intrinsic vertical axial aberration of big target surface imaging system is bigger, can be adaptive with high-pixel camera machine.
Description
Technical field
The present invention relates to a kind of compact super large image planes continuous magnification lens, belong to field of photoelectric technology.
Background technology
Long distance type system is because of the feature of its distinctive compact conformation, and is widely used in the occasion that system proposes the restriction requirement of strict geometric shape. But this system also has intrinsic shortcoming, such as: the main focal power of system concentrates on system forward part, the correction difficulty of the axial aberration such as aberration especially second order spectrum on spherical aberration, axle is added; Focal power separate front and back phenomenon ratio is more serious, and off-axis aberration especially chromatic longitudiinal aberration, distortion etc. seriously limit the angle of visual field of long distance type system, it is difficult to apply in big target surface system; Particularly when requiring this kind of system and high definition camera adaptation, further increase design difficulty.
Summary of the invention
In order to overcome drawbacks described above, it is an object of the invention to provide a kind of compact super large image planes continuous magnification lens for video camera system, it is possible to adaptive with the video camera of high definition, it is provided that high performance video image.
To achieve these goals, the technical scheme is that a kind of compact super large image planes continuous magnification lens, being sequentially provided with focal power along light incident direction from left to right in the optical system of described camera lens is positive front fixed mirror group, focal power is negative zoom mirror group, focal power is negative compensating glass group, iris and focal power are positive rear fixed mirror group, described front fixed mirror group is sequentially provided with positive selenodont eyeglass A-1 and by the glued group I of negative selenodont eyeglass A-2 and positive selenodont eyeglass A-3 contiguity, described zoom mirror group is sequentially provided with biconvex eyeglass B-1, by the glued group II of concave-concave eyeglass B-2 and positive selenodont eyeglass B-3 contiguity and negative selenodont eyeglass B-4, described compensating glass group is sequentially provided with by the glued group III of positive selenodont eyeglass C-1 and negative selenodont eyeglass C-2 contiguity, described rear fixed mirror group is sequentially provided with biconvex eyeglass E-1, by the glued group IV of negative selenodont eyeglass E-2 and biconvex eyeglass E-3 contiguity, planoconcave lens E-4, positive selenodont eyeglass E-5, by the glued group V of planoconcave lens E-6 and biconvex eyeglass E-7 contiguity and by the glued group VI of concave-concave eyeglass E-8 and biconvex eyeglass E-9 contiguity.
Further, airspace between described front fixed mirror group and zoom mirror group is 62.39mm ~ 1.73mm, airspace between described zoom mirror group and compensating glass group is 4.52mm ~ 58.72mm, and the airspace between described compensating glass group and rear fixed mirror group is 0.8mm ~ 7.26mm.
Further, the positive selenodont eyeglass A-1 in described front fixed mirror group and the airspace between glued group I are 0.15mm; The airspace between biconvex eyeglass B-1 and glued group II in described zoom mirror group is 0.10mm, and the airspace between described glued group II and negative selenodont eyeglass B-4 is 3.01mm; The airspace between biconvex eyeglass E-1 and glued group IV in described rear fixed mirror group is 0.12mm, airspace between described glued group IV and planoconcave lens E-4 is 0.91mm, airspace between described planoconcave lens E-4 and positive selenodont eyeglass E-5 is 0.10mm, airspace between described positive selenodont eyeglass E-5 and glued group V is 12.31mm, and the airspace between described glued group V and glued group VI is 0.54mm.
Compared with prior art, the invention have the advantages that
(1) by the focal power of reasonable distribution A, tetra-constituent elements of B, C, E, the ratio of the optical system overall length maximum focus value with camera lens is made to reach 0.54, far below general long distance type dioptric system (0.75 ~ 0.85).
(2) particular demographic is suitably complicated, achieve the densification of system, and by the optical glass material of application height refraction unusual on eyeglass E-7, E-9, high dispersion, correct the vertical axial aberration that big target surface imaging system is intrinsic, make it adaptive with high-pixel camera machine.
(3) select the optical glass material H-FK61 of ED at eyeglass A-3, solve the intrinsic second order spectrum aberration of big logical light quantity long distance type system, spherochromatism, high-order spherical aberration etc. and be difficult to the problem of correction, make the resolution of camera lens improve.
(4) there is the functions such as Power focus, electric continuous zooming heat, electronic light modulation and focal length be preset, it may be achieved the automatization of control, under the premise ensureing compact conformation, improve the anti-seismic performance of camera lens so that it is can under severe vibration environment normal operation.
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of the embodiment of the present invention.
Fig. 2 is the mechanical construction drawing of the embodiment of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the right view of Fig. 2.
Fig. 5 is the axonometric chart of Fig. 2.
Fig. 6 is the Power focus mechanism map of the embodiment of the present invention.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the power zoom mechanism map of the embodiment of the present invention.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the electric adjustable light mechanism map of the embodiment of the present invention.
Figure 11 is the sectional view at A-A place in Figure 10.
In Fig. 1: fixed mirror group before A., A-1. positive selenodont eyeglass A-1, A-2. bear selenodont eyeglass A-2, A-3. positive selenodont eyeglass A-3, B. zoom mirror group, B-1. biconvex eyeglass B-1, B-2. concave-concave eyeglass B-2, B-3. positive selenodont eyeglass B-3, B-4. negative selenodont eyeglass B-4, C. compensating glass group, the positive selenodont eyeglass C-1 of C-1., C-2. negative selenodont eyeglass C-2, D. iris; E. fixed mirror group after, E-1. biconvex eyeglass E-1, E-2. bear selenodont eyeglass E-2, E-3. biconvex eyeglass E-3, E-4. planoconcave lens E-4, E-5. positive selenodont eyeglass E-5, E-6. planoconcave lens E-6, E-7. biconvex eyeglass E-7, E-8. concave-concave eyeglass E-8, E-9. biconvex eyeglass E-9, F. image planes.
In Fig. 2 ~ 5: fixed mirror assembly before 2-1., 2-2. zoom mirror assembly, 2-3. compensates assembly, 2-4. body tube, 2-5. iris, fixation kit after 2-6., 2-7. camera assembly, 2-8. Power focus mechanism, 2-9. power zoom mechanism, the electronic dimming mechanism of 2-10..
In Fig. 6 ~ 7: 3-1. positive selenodont eyeglass A-1,3-2. bear the positive selenodont eyeglass A-3 of selenodont eyeglass A-2,3-3., organize spacer ring before 3-4., before 3-5., organize trim ring I, before 3-6., organize trim ring II, 3-7. focusing ring, organizes lens barrel, 3-9. focusing barrel before 3-8., 3-10. focuses on and dials nail, and 3-11. focuses on gear, 3-12. focus motor, 3-13. focus motor frame, 3-14. focuses on limited support, and 3-15. focuses on limit switch, and 3-16. focuses on banking pin.
In Fig. 8 ~ 9: 4-1. body tube, 4-2. cam cover, 4-3. zoom cam, 4-4. guide rod, 4-5. steel ball, 4-6. zoom bearing, 4-7. zoom cam trim ring, 4-8. connects base, 4-9. zoom limited support, 4-10. zoom limit switch, 4-11. zoom banking pin, 4-12. zoom motor, 4-13. zoom drivewheel, 4-14. zoom potentiometer gear, 4-15. zoom potentiometer, 4-16. zoom motor frame.
In Figure 10 ~ 11: 5-1. biconvex eyeglass E-1, 5-2. bears selenodont eyeglass E-2, 5-3. biconvex eyeglass E-3, 5-4. planoconcave lens E-4, the positive selenodont eyeglass E-5 of 5-5., 5-6. diaphragm sheet, 5-7. diaphragm rivet, spacer ring I is organized after 5-8., 5-9. diaphragm rotating ring trim ring, 5-10. diaphragm rotating ring, 5.11 diaphragm seats, 5-12. aperture setting ring, 5-13. diaphragm dials nail, 5-14. light hurdle regulates ring trim ring, pad is organized after 5-15., spacer ring II is organized after 5-16., trim ring I is organized after 5-17., trim ring II is organized after 5-18., lens barrel is organized after 5-19., 5-20. planoconcave lens E-6, 5-21. biconvex eyeglass E-7, 5-22. concave-concave eyeglass E-8, 5-23. biconvex eyeglass E-9, 5-24. diaphragm limit switch, the spacing plectrum of 5-25. diaphragm, 5-26. diaphragm limited support, 5-27. Iris motor frame, 5-28. Iris motor gear, 5-29. Iris motor.
Detailed description of the invention
As shown in Figure 1, a kind of compact super large image planes continuous magnification lens, being sequentially provided with focal power along light incident direction from left to right in the optical system of described camera lens is positive front fixed mirror group A, focal power is negative zoom mirror group B, focal power is negative compensating glass group C, iris D and focal power are positive rear fixed mirror group E, described front fixed mirror group A is sequentially provided with positive selenodont eyeglass A-1 and by the glued group I of negative selenodont eyeglass A-2 and positive selenodont eyeglass A-3 contiguity, described zoom mirror group B is sequentially provided with biconvex eyeglass B-1, by the glued group II of concave-concave eyeglass B-2 and positive selenodont eyeglass B-3 contiguity and negative selenodont eyeglass B-4, described compensating glass group C is sequentially provided with by the glued group III of positive selenodont eyeglass C-1 and negative selenodont eyeglass C-2 contiguity, described rear fixed mirror group E is sequentially provided with biconvex eyeglass E-1, by the glued group IV of negative selenodont eyeglass E-2 and biconvex eyeglass E-3 contiguity, planoconcave lens E-4, positive selenodont eyeglass E-5, by the glued group V of planoconcave lens E-6 and biconvex eyeglass E-7 contiguity and by the glued group VI of concave-concave eyeglass E-8 and biconvex eyeglass E-9 contiguity.
In the present embodiment, airspace between described front fixed mirror group A and zoom mirror group B is 62.39mm ~ 1.73mm, airspace between described zoom mirror group B and compensating glass group C is 4.52mm ~ 58.72mm, and the airspace between described compensating glass group C and rear fixed mirror group E is 0.8mm ~ 7.26mm.Wherein, the positive selenodont eyeglass A-3 in described front fixed mirror group A adopts ED glass material to make.
In the present embodiment, the positive selenodont eyeglass A-1 in described front fixed mirror group A and the airspace between glued group I are 0.15mm; The airspace between biconvex eyeglass B-1 and glued group II in described zoom mirror group B is 0.10mm, and the airspace between described glued group II and negative selenodont eyeglass B-4 is 3.01mm; The airspace between biconvex eyeglass E-1 and glued group IV in described rear fixed mirror group E is 0.12mm, airspace between described glued group IV and planoconcave lens E-4 is 0.91mm, airspace between described planoconcave lens E-4 and positive selenodont eyeglass E-5 is 0.10mm, airspace between described positive selenodont eyeglass E-5 and glued group V is 12.31mm, and the airspace between described glued group V and glued group VI is 0.54mm.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index: (1) focal length: f '=65.6～398.5mm; (2) zoom ratio: 6 times; (3) relative aperture D/f '=1/6; (4) angle of visual field 2 ω: 20.1 °～3.25 °; (5) resolution: adaptive with high-definition camera; (6) light path overall length ∑ D≤214.8mm; (7) it is suitable for spectral line scope: 450nm～700nm.
The present invention, when light path design, selects long distance type structure, reasonable arrangement optical power profile, makes the ratio reduction as far as possible of optical system overall length and system maximum focus value; Owing to the main focal power of system concentrates on forward part, add the correction difficulty of the axial aberration such as aberration especially second order spectrum on spherical aberration, axle, particularly front fixed mirror group A, assume responsibility for the task of aberration on major part correction system axle, therefore employ the optical glass (positive selenodont eyeglass A-3) of a piece of ED, make the resolution of camera lens be greatly improved; Owing to long distance type system focal power separate front and back phenomenon ratio is more serious, off-axis aberration especially chromatic longitudiinal aberration, distortion etc. seriously limit the angle of visual field of long distance type system, it is difficult in big target surface system and applies, simultaneously in order to avoid the aberration correction pressure too big to system forward part, therefore in rear fixed mirror group E, the arrangement of focal power is carried out elaborately planned and suitably complicated, particularly the application of latter two glue pellet, greatly help system correction chromatic longitudiinal aberration; Biconvex eyeglass E-7, biconvex eyeglass E-9 break through traditional lens materials matching method, the unusual optical glass material applying high index of refraction, high dispersion, improves image quality.
As shown in Fig. 2 ~ 5, the frame for movement of described camera lens is sequentially provided with front fixed mirror assembly 2-1, zoom mirror assembly 2-2 from left to right, compensates assembly 2-3, iris assembly 2-5, rear fixation kit 2-6 and camera assembly 2-7, the front portion of described camera lens is provided with Power focus mechanism 2-8, the middle part of described camera lens is provided with power zoom mechanism 2-9, the rear portion of described camera lens is provided with electronic dimming mechanism 2-10, and described Power focus mechanism 2-8, power zoom mechanism 2-9 and electronic dimming mechanism 2-10 are respectively around the surrounding being distributed in camera lens. Wherein, described power zoom mechanism 2-9 is provided with a zoom potentiometer 4-15 realizing focal length preparatory function, and described zoom potentiometer 4-15 is precision potentiator.
As shown in Fig. 6 ~ 7, described front fixed mirror assembly 2-1 is by positive selenodont eyeglass A-1(3-1 with front group of trim ring I 3-5), negative selenodont eyeglass A-2(3-2), positive selenodont eyeglass A-3(3-3) it is respectively arranged in front group of lens barrel 3-8 and is pressed in focusing barrel 3-9 by front group of trim ring II 3-6, described positive selenodont eyeglass A-1(3-1) it is be pressed in front group of lens barrel 3-8 by front group of trim ring I 3-5, described negative selenodont eyeglass A-2(3-2) and positive selenodont eyeglass A-3(3-3) organize I for the glued of contiguity, described positive selenodont eyeglass A-1(3-1) and glued group I between be provided with front group of spacer ring 3-4.Described Power focus mechanism 2-8 includes focus motor 3-12, the focusing limit switch 3-15 of focusing barrel 3-9 and accurately control focal position, described focus motor 3-12 is placed on body tube 4-1 by focus motor frame 3-13, described focusing limit switch 3-15 is arranged on body tube 4-1 by focusing on limited support 3-14, described body tube 4-1 offers precision machined 3 120 ° of uniform guide grooves, the motor shaft of described focus motor 3-12 is provided with focusing gear 3-11, described focusing barrel 3-9 is provided with focusing ring 3-7, described focusing gear 3-11 rotates by driving focusing ring 3-7 with focusing ring 3-7 gear after engaging, described focusing ring 3-7 drives focusing barrel 3-9, described focusing barrel 3-9 week side is fixed with 3 focusing 120 ° uniform and dials nail 3-10, dial nail 3-10 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 3-9 by screw, thus driving moving forward and backward of front fixed mirror assembly 4-2, realize focusing function.
As shown in Fig. 8 ~ 9, described zoom mirror assembly 2-2 and compensation assembly 2-3 is installed on guide rod 4-4 and is slidably matched, three guide rod 4-4 are separately fixed on body tube 4-1 by cam cover 4-2, described zoom cam 4-3 is pressed on body tube 4-1 by zoom bearing 4-6 and zoom cam trim ring 4-7, offering precision machined two curved grooves on described zoom cam 4-3, described body tube 4-1 is connected with being connected base 4-8. the power zoom mechanism 2-9 of described camera lens includes zoom motor 4-12, and for accurately controlling the zoom limit switch 4-10 of length Jiao position, described zoom limit switch 4-10 is arranged on body tube 4-1 by zoom limited support 4-9, described zoom motor 4-12 is placed on body tube 4-1 by zoom motor frame 4-16, the motor shaft of described zoom motor 4-12 is provided with zoom gear 4-13, described zoom gear 4-13 rotates by driving zoom cam 4-3 with zoom cam 4-3 gear after engaging, described zoom cam 4-3 drives zoom mirror assembly 2-2 by the rolling of steel ball 4-5 and compensates assembly 2-3 along zoom cam 4-3 curved groove relative movement, thus realizing the change of lens focus, complete zooming procedure. simultaneously, described zoom gear 4-13 rotates by driving zoom potentiometer gear 4-14 with zoom potentiometer gear 4-14 after engaging, the rotation of described zoom potentiometer gear 4-14 makes the resistance of zoom potentiometer 4-15 change, thus, form man-to-man relation between focal length and zoom potentiometer 4-15 resistance, the preparatory function of focal length can be realized by this approach sensor.
As shown in Figure 10 ~ 11, described rear fixation kit 2-6 is by by biconvex eyeglass E-1(5-1), negative selenodont eyeglass E-2(5-2) and biconvex eyeglass E-3(5-3) touch glued organize IV, planoconcave lens E-4(5-4), positive selenodont eyeglass E-5(5-5) it is respectively arranged in diaphragm seat 5-11, described positive selenodont eyeglass E-5(5-5) it is pressed in diaphragm seat 5-11 by rear group of trim ring I 5-17, described biconvex eyeglass E-1(5-1) and glued group IV between be provided with rear group of spacer ring I 5-8, described planoconcave lens E-4(5-4) and positive selenodont eyeglass E-5(5-5) between be provided with rear group of spacer ring II, described rear fixation kit 2-6 is also by planoconcave lens E-6(5-20) and biconvex eyeglass E-7(5-21) touch glued group V, concave-concave eyeglass E-8(5-22) and biconvex eyeglass E-9(5-23) the glued group VI touched is respectively arranged in rear group of lens barrel 5-19, described glued organize V and be pressed in rear group of lens barrel 5-19 by rear group of trim ring II 5-18.Described electronic dimming mechanism 2-10 includes Iris motor 5-29 and for accurately controlling the diaphragm limit switch 5-24 of diaphragm openings of sizes position, described diaphragm limit switch 5-24 is arranged on diaphragm seat 5-11 by diaphragm limited support 5-26, described aperture setting ring 5-12 is further fixed on diaphragm switch plectrum 5-25, described Iris motor 5-29 is placed on diaphragm seat 5-11 by Iris motor frame 5-27, the motor shaft of described Iris motor 5-29 is provided with diaphragm gear 5-28, described diaphragm gear 5-28 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 5-11 by aperture setting ring trim ring 5-14, described aperture setting ring 5-12 dials nail 5-13 by the diaphragm being fixed on diaphragm rotating ring 5-10 and drives diaphragm rotating ring 5-10 to rotate, described diaphragm rotating ring 5-10 is pressed in diaphragm seat 5-11 by diaphragm rotating ring trim ring 5-9, described diaphragm rotating ring 5-10 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 (4)
1. a compact super large image planes continuous magnification lens, it is characterized in that: being sequentially provided with focal power along light incident direction from left to right in the optical system of described camera lens is positive front fixed mirror group, focal power is negative zoom mirror group, focal power is negative compensating glass group, iris and focal power are positive rear fixed mirror group, described front fixed mirror group is sequentially provided with positive selenodont eyeglass A-1 and by the glued group I of negative selenodont eyeglass A-2 and positive selenodont eyeglass A-3 contiguity, described zoom mirror group is sequentially provided with biconvex eyeglass B-1, by the glued group II of concave-concave eyeglass B-2 and positive selenodont eyeglass B-3 contiguity and negative selenodont eyeglass B-4, described compensating glass group is sequentially provided with by the glued group III of positive selenodont eyeglass C-1 and negative selenodont eyeglass C-2 contiguity, described rear fixed mirror group is sequentially provided with biconvex eyeglass E-1, by the glued group IV of negative selenodont eyeglass E-2 and biconvex eyeglass E-3 contiguity, planoconcave lens E-4, positive selenodont eyeglass E-5, by the glued group V of planoconcave lens E-6 and biconvex eyeglass E-7 contiguity and by the glued group VI of concave-concave eyeglass E-8 and biconvex eyeglass E-9 contiguity, described positive selenodont eyeglass A-1, negative selenodont eyeglass A-2, positive selenodont eyeglass A-3, positive selenodont eyeglass B-3, negative selenodont eyeglass E-2 and positive selenodont eyeglass E-5 all protrude to side, thing side, and described negative selenodont eyeglass B-4, positive selenodont eyeglass C-1 and negative selenodont eyeglass C-2 all protrude to image side, airspace between described front fixed mirror group and zoom mirror group is 62.39mm ~ 1.73mm, airspace between described zoom mirror group and compensating glass group is 4.52mm ~ 58.72mm, and the airspace between described compensating glass group and rear fixed mirror group is 0.8mm ~ 7.26mm, the airspace between positive selenodont eyeglass A-1 and glued group I in described front fixed mirror group is 0.15mm, the airspace between biconvex eyeglass B-1 and glued group II in described zoom mirror group is 0.10mm, and the airspace between described glued group II and negative selenodont eyeglass B-4 is 3.01mm, the airspace between biconvex eyeglass E-1 and glued group IV in described rear fixed mirror group is 0.12mm, airspace between described glued group IV and planoconcave lens E-4 is 0.91mm, airspace between described planoconcave lens E-4 and positive selenodont eyeglass E-5 is 0.10mm, airspace between described positive selenodont eyeglass E-5 and glued group V is 12.31mm, and the airspace between described glued group V and glued group VI is 0.54mm.
2. compact super large image planes continuous magnification lens according to claim 1, it is characterised in that: the positive selenodont eyeglass A-3 in described front fixed mirror group adopts optical glass material H-FK61 to make.
3. compact super large image planes continuous magnification lens according to claim 1, it is characterised in that: the frame for movement front portion of described camera lens is provided with Power focus mechanism, and middle part is provided with power zoom mechanism, and rear portion is provided with electronic dimming mechanism.
4. compact super large image planes continuous magnification lens according to claim 3, it is characterised in that: described power zoom mechanism is provided with a precision potentiator for realizing focal length preparatory function.
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| CN104965297B (en) * | 2015-06-25 | 2017-05-24 | 福建省光学技术研究所 | Rear group adjusting video shooting high-definition zoom lens and rear group adjusting method for lens |
| CN105044889B (en) * | 2015-08-06 | 2017-10-03 | 福建福光股份有限公司 | High-resolution zoom with strong fog penetrating function is away from pick-up lens and its control method |
| CN107589534B (en) | 2017-09-04 | 2019-09-17 | 浙江大华技术股份有限公司 | A kind of lens system and camera lens |
| CN108873277B (en) * | 2018-08-17 | 2021-06-01 | 福建福光股份有限公司 | Compact wide-angle high-zoom-ratio high-definition zoom lens |
| CN111929800B (en) * | 2020-08-14 | 2022-07-08 | 西安应用光学研究所 | Multi-channel continuous zooming camera device suitable for airborne multispectral reconnaissance equipment |
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| JP3810061B2 (en) * | 2001-12-28 | 2006-08-16 | フジノン株式会社 | Zoom lens |
| JP5162305B2 (en) * | 2008-04-02 | 2013-03-13 | パナソニック株式会社 | Zoom lens system, interchangeable lens device, and camera system |
| JP4891441B2 (en) * | 2011-01-18 | 2012-03-07 | オリンパス株式会社 | Zoom lens and imaging apparatus |
| CN104024912B (en) * | 2011-11-04 | 2016-09-07 | 富士胶片株式会社 | Zoom lens and camera head |
| CN102998779B (en) * | 2012-08-08 | 2015-11-25 | 中国科学院长春光学精密机械与物理研究所 | A kind of varifocal lithographic objective system |
| CN103345048B (en) * | 2013-07-03 | 2015-03-25 | 福建福光数码科技有限公司 | High magnification zoom camera lens suitable for image stabilization system |
| CN203930188U (en) * | 2014-06-20 | 2014-11-05 | 福建福光数码科技有限公司 | Compact super large image planes continuous magnification lens |
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