Zoom radiation-resistant lens
A radiation-resistant and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of difficult manufacturing, high cost, complex structure, etc., and achieve the effect of reducing manufacturing difficulty and production cost, simplifying structure, and reducing quantity
Pending Publication Date: 2021-02-26
WUHAN LIANYI HELI TECH CO LTD
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Problems solved by technology
[0003] The main purpose of the present invention is to propose a zoom radiation-resistant lens, which aims to solve the shortcomings of the existing technology in order to realize the zoom function of more than 3 times, there are too many lens moving groups, the structure is too complicated, the manufacture is difficult, and the cost is high.
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0042] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0043] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses a zoom radiation-resistant lens, and the lens enables a zoom group to move towards an object side along an optical axis through the cooperation of a first fixed group, the zoomgroup, a second fixed group and a focusing group, achieves the zooming from a telescoping end to a wide-angle end when the focusing group moves towards an image side along the optical axis, and enables the zoom group to move towards the image side along the optical axis. When the focusing group moves towards the object side along the optical axis, zooming from the wide-angle end to the telescopicend is realized, so that the moving group for zooming between the telescopic end and the wide-angle end is divided into the zooming group and the focusing group; in addition, the number of the movinggroups is reduced, the structure of the zoom lens is simplified, and the manufacturing difficulty and the production cost are reduced.
Description
technical field [0001] The invention relates to the field of optical elements, in particular to a zoom radiation resistant lens. Background technique [0002] Most of the known zoom lenses have the first fixed group of positive diopter, the second mobile group of negative diopter, the third mobile group of negative diopter, the fourth mobile group of positive diopter, and the fifth mobile group of fixed positive diopter Although the above structure has achieved high performance, including a zoom function of more than 3 times, it has the disadvantages of too many moving groups, an overly complex structure, difficult manufacturing, and high cost. Contents of the invention [0003] The main purpose of the present invention is to propose a zoom radiation-resistant lens, which aims to solve the shortcomings of the existing technology in order to realize the zoom function of more than 3 times, there are too many lens moving groups, the structure is too complicated, the manufactu...
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Login to View More IPC IPC(8): G02B15/14
CPCG02B15/144113
Inventor 邹爽朱红伟刘玉芳邹盛武向恒宇丁俊雅陈乐王潇枫朱艳明秦辉卢昆利
Owner WUHAN LIANYI HELI TECH CO LTD