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Electromagnet driven rapid zooming lens

A zoom lens and electromagnet technology, applied in electrical components, electromechanical devices, installation, etc., can solve the problems of small security coverage area, inability to meet fixed-focus monitoring lenses, etc., and achieve the effects of low cost, high speed, and simple control circuit

Active Publication Date: 2014-11-19
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to overcome the problem that the fixed-focus surveillance lens in the prior art cannot meet the requirements for clear imaging at different distances and its security coverage area is small, the present invention provides an electromagnet drive with high imaging quality, high precision, high reliability and fast zooming fast zoom lens

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  • Electromagnet driven rapid zooming lens

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Embodiment Construction

[0011] The device of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 As shown, the electromagnet of the present invention drives a fast zoom lens, and the lens includes: a front lens barrel assembly 1 , a zoom assembly 2 and a field of view switching assembly 3 . The front lens barrel assembly 1 is arranged at the front end of the variable magnification assembly 2, and the field of view switching assembly 3 is arranged above the magnification variable assembly 2 for driving the variable magnification assembly.

[0013] The front lens barrel assembly 1 includes a front lens barrel, which is a hollow cylinder along the optical axis of the lens, and at least one focusing lens is arranged inside the front lens barrel, which is mainly used for coordinating imaging and protecting the rear group optical system.

[0014] Such as figure 2 As shown, the zoom assembly 2 is a hollow cylinder with a...

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Abstract

The invention discloses an electromagnet driven rapid zooming lens, belonging to the technical field of security and protection monitoring. The electromagnet driven rapid zooming lens is invented to overcome the problems that a fixed-focus monitoring lens in the prior art cannot satisfy with requirements of imaging clearly at different distances and the security and protection cover area is small. The electromagnet driven rapid zooming lens comprises a front lens barrel component, a zooming component and a view field switching component, wherein the front lens barrel component is arranged at the front end of the zooming component; the view field switching component is arranged above the zooming component and is used for driving the zooming component to realize the zooming of an optical system. The e electromagnet driven rapid zooming lens, disclosed by the invention, is widely applied in the technical field of security and protection monitoring.

Description

technical field [0001] The invention belongs to the technical field of security monitoring, in particular to a lens that utilizes magnetic force to control mirror group shifting to realize fast zooming. Background technique [0002] At present, the field of security monitoring requires that the pictures taken by security cameras are very clear, and the monitors are installed in traffic flow channels, dead corners of public security, financial institutions or other places that require surveillance photography, so that crimes can be hidden and the development of events can be controlled. Or other related photography, so the monitor is quite practical and important to the public. [0003] At present, fixed-focus surveillance lenses are mostly used in the field of security monitoring on the market. The disadvantage is that they cannot meet the requirements for clear imaging at different distances, which greatly reduces the security coverage area. On the market, there are few zo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04H02K33/18
Inventor 张新曲贺盟张继真王灵杰伍雁雄
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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