Miniaturization, large zoom ratio, high definition, airborne continuous zoom lens
A high-definition, large zoom ratio technology, used in installation, optics, instruments, etc., can solve the problems of inability to match high-precision cameras, large weight and volume, low zoom ratio, etc., to achieve a wide range of climate adaptation, small size , the effect of large zoom ratio
Active Publication Date: 2015-09-30
FUJIAN FORECAM OPTICS CO LTD
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[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a miniaturization, large zoom ratio, high definition, airborne continuous zoom lens; , low zoom ratio, poor definition, can not match with high-precision cameras and other defects
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[0019] Such as figure 1 As shown, a miniaturized, large zoom ratio, high-definition, airborne continuous zoom lens, the optical system of the lens is respectively equipped with front fixed lenses with positive focal powers along the incident direction of light from left to right. Group A, zoom group B with negative refractive power, compensation group C with negative refractive power, diaphragm assembly D, and rear fixed group E with positive refractive power; Dental lens A-1, positive crescent lens A-2, and the first cemented group that is tightly bonded by negative crescent lens A-3 and positive crescent lens A-4, and the variable power group B is provided with double concave lens B-1 and negative The second glued group of the crescent lens B-2 and the positive crescent lens B-3 is tightly bonded, and the compensation group C is provided with the third glued group tightly bonded by the biconcave lens C-1 and the positive crescent lens C-2; the rear fixation The front part o...
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The invention relates to a miniature airborne continuous zoom lens with large zoom ratio and high definition. A front fixation group with positive focal power, a zoom group with negative focal power, a compensation group with negative focal power, a variable diaphragm assembly and a rear fixation group with positive focal power are successively arranged along the incidence direction of light. The front fixation group is successively provided with a positive meniscus lens, a positive meniscus lens and a gummed group formed by close connection of a negative meniscus lens and a positive meniscus lens. The zoom group is provided with a biconcave lens and a gummed group formed by close connection of a negative meniscus lens and a positive meniscus lens. The compensation group is equipped with a gummed group formed by close connection of a biconcave lens and a positive meniscus lens. The front part of the rear fixation group is successively provided with a biconvex lens, a positive meniscus lens, a gummed group formed by close connection of a biconvex lens and a biconcave lens and a positive meniscus lens, and the rear part of the rear fixation group is provided with a gummed group formed by close connection of a biconvex lens and a negative meniscus lens. The miniature airborne continuous zoom lens provided by the invention has functions of continuous electric zooming, electric focusing, electric dimming, focal length real-time feedback and the like.
Description
technical field [0001] The invention relates to an optical camera device of video technology, in particular to a miniaturized, large zoom ratio, high-definition, airborne continuous zoom lens. Background technique [0002] At present, airborne detection systems not only have strict requirements on weight, volume, detection range, etc., but also put forward high requirements on resolution. The optical structure of the traditional mechanically compensated zoom lens consists of four components: the front fixed group, the zoom group, the compensation group and the rear fixed group. Poor, can not match with high-precision cameras and other deficiencies. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a miniaturization, large zoom ratio, high definition, airborne continuous zoom lens; , Low zoom ratio, poor definition, can not match with high-precision cameras and other defects. [0004] In or...
Claims
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IPC IPC(8): G02B15/17G02B7/04G02B7/00
Inventor 肖维军林春生刘辉魏岩丽
Owner FUJIAN FORECAM OPTICS CO LTD