Optical passive heat -elimination difference continuous zoom high -resolution lens

Abstract

The invention relates to an optical passive athermal continuous zooming high-resolution lens. The lens is sequentially provided with a front fixed lens set, a zoom lens set, a compensating lens set, a variable diaphragm, a rear fixed lens set and a light splitting assembly in the light incidence direction. The front fixed lens set is sequentially provided with double convex lenses, a gluing set and crescent-type lenses, wherein the gluing set is formed by tightly connecting a planoconvex lens and the double convex lenses. The zoom lens set is sequentially provided with double concave lenses, a gluing set and a crescent-type lens, wherein the gluing set is formed by tightly connecting double convex lenses and the double concave lenses. The compensating lens set is provided with a gluing set formed by tightly connecting a crescent-type lens and double concave lenses. The rear fixed lens set is sequentially provided with double convex lenses, a planoconvex lens, a gluing set formed by tightly connecting double convex lenses and double concave lenses, a gluing set formed by tightly connecting double convex lenses and a planoconcave lens, a crescent-type lens and double convex lenses. The light splitting assembly is sequentially provided with a light splitting prism and a reflecting mirror. The lens does not need an active compensation mechanism, and can achieve stable imaging in environment in the temperature range of minus 30 DEG C to 60 DEG C.

Description

technical field [0001] The invention relates to an optical passive athermal difference continuous zoom high-resolution lens, which belongs to the field of optoelectronic technology. Background technique [0002] Changes in the ambient temperature will lead to changes in the refractive index, curvature, thickness, and spacing of optical components, thereby changing the system aberration and focal length, shifting the best image plane, and deteriorating image quality. Imaging systems, especially high-resolution imaging systems have an impact that cannot be ignored. Therefore, the influence of temperature changes on imaging quality should be fully considered in the design process of military optical or space optical lenses. [0003] At present, the adiabatic technology adopted at home and abroad can be divided into three categories: mechanical passive adiabatic technology, electromechanical active adiabatic technology and optical passive adiabatic technology. Among them, the ...

AI Technical Summary

Problems solved by technology

Therefore, high-resolution continuous zoom lenses generally use electromechanical active athermalization technology to meet the application requirements under different ambient temperatures, and there are no reports on optical passive athermalization continuous zoom high-resolution lenses.

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