Compact type high magnification and high definition continuous zooming optical system

Abstract

The invention relates to the technical field of photo-electronic imaging. Aiming at the problems that an existing zooming optical system has relatively short long-focal length and difficulty to meet the requirements of high zoom ratio, miniaturization, visible light and through-frog dual band high-definition imaging and the like, the invention provides a compact type high magnification and high definition continuous zooming optical system. The system comprises a front fixed assembly, a first moving assembly, a second moving assembly, a third moving assembly, a rear fixed assembly and an optical filter which are sequentially and coaxially arranged in the optical axis direction from left to right; an aperture is arranged on an optical path between the first moving assembly and the second moving assembly; the left side of the front fixed assembly is an object plane and the right side of the optical filter is an image plane; continuous zooming and compensation are realized by front-back relative motion of the first moving assembly, the second moving assembly and the third moving assembly in the optical axis direction.

Description

technical field [0001] The invention relates to the field of photoelectric imaging technology, in particular to a compact high-magnification high-definition continuous zoom optical system. Background technique [0002] With the development of modern society and the advancement of science and technology, especially the continuous emergence of small pixel high-resolution image detectors and the networking of video surveillance, continuous zoom optical systems have been widely used in all aspects of life, such as security, monitoring, Skynet, transportation, production safety, forest fire prevention and other fields. As a result, people's requirements and expectations for zoom lenses are getting higher and higher. Not only are they required to see far and clearly, but also the system structure is compact and small. The zoom system must not only be able to continuously monitor under harsh conditions such as rain, snow, and mist, but also have high imaging resolution and large z...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a compact high-magnification high-definition continuous zoom in order to solve the requirements of the existing zoom optical system with short telephoto focal length and difficulty in achieving high zoom ratio, miniaturization, visible light and fog-permeable dual-band high-definition imaging. The optical system uses spherical lenses, which have the characteristics of large zoom ratio, long focal length, high resolution, high-definition imaging, and compact structure. Requirements for target imaging and detection under foggy weather conditions such as fog, rain, and snow

Images