A continuous zoom optical system with fast image motion compensation capability

Abstract

The present invention provides a continuous zoom optical system capable of fast image motion compensation, which solves the problems in the prior art that the resolution of the imaging system is low, it is difficult to take into account the search functions of large and small fields of view, and it is impossible to realize effective compensation for high-speed image motion. The system includes a front fixed mirror group, a variable power mirror group, a compensation mirror group, a diaphragm, a fifth negative lens, a first folding mirror, a relay mirror group, and a second folding mirror arranged in sequence from the object plane to the focal plane. , rear fixed lens group and filter; the front fixed lens group includes the first negative lens, the first positive lens and the second positive lens; the zoom lens group includes the second negative lens and the first cemented lens group; the compensation lens group includes The fourth positive lens, the second cemented lens group and the sixth positive lens; the relay lens group includes the sixth negative lens, the seventh positive lens, the seventh negative lens, the eighth positive lens and the third cemented lens group; the rear fixed mirror The group includes the ninth negative lens and the tenth positive lens; the zoom lens group and the compensation lens group can move linearly back and forth along the optical axis to realize continuous zooming.

Description

technical field [0001] The invention belongs to the field of photoelectric technology and relates to a continuous zoom optical system, in particular to a continuous zoom optical system with fast image motion compensation capability. Background technique [0002] In recent years, the scanning area array detection and imaging system has developed rapidly in response to application requirements such as aerial remote sensing and peripheral vision early warning. Among them, with continuous zoom function, it can realize area scan imaging of large field of view search and small field of view detailed inspection The system gets focused attention. This type of imaging system requires the photoelectric platform to scan and image in azimuth 360° or within a specific angle range at a certain speed, and perform gaze tracking for a specific target area. However, due to the relative motion between the focal plane and the scene of the area array detector within the integration time, result...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of low compensation ability, poor reliability, or large component inertia, the existing technology cannot achieve effective compensation for high-speed image motion, and the resolution of the area scan zoom imaging system working in the mid- and long-wave infrared spectrum is low. Since the area array scanning equipment in the visible spectrum is mostly a fixed-focus system, it is difficult to take into account the technical problems of the search and detailed search function of the large and small fields of view. The present invention provides a continuous zoom optical system with fast image motion compensation capability

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