An ultra-miniature, high-magnification, high-definition continuous zoom airborne camera lens

Abstract

A subminiature, large-multiple proportion, high-definition and continuously variable focal length airborne camera lens of the present invention is characterized in that an optical system of the lens is orderly equipped with, along a light ray incident direction from left to right, a front fixing group A of which the focal power is positive, a zoom group B of which the focal power is negative, a compensation group C of which the focal power is positive, a fixing diaphragm D and a rear fixing group E of which the focal power is positive. The front fixing group A comprises a first gluing group in which a planoconvex lens A-1, a negative meniscus lens A-2 and a biconvex lens A-3 are connected tightly and a positive meniscus lens A-4, the zoom group B comprises a second gluing group in which a negative meniscus lens B-1, a biconvex lens B-2 and a biconcave lens B-3 are connected tightly, the compensation group C comprises a third gluing group in which a biconcave lens C-1 and a positive meniscus lens C-2 are connected tightly, and the rear fixing group E comprises a fourth gluing group in which a front biconvex lens E-1, a positive meniscus lens E-2, a biconvex lens E-3 and a biconcave lens E-4 are connected tightly and a fifth gluing group in which a middle negative meniscus lens E-5, a rear biconvex lens E-6 and a biconcave lens E-7 are connected tightly. The subminiature, large-multiple proportion, high-definition and continuously variable focal length airborne camera lens is simple in structure.

Description

technical field [0001] The invention relates to an airborne camera lens with super miniaturization, high magnification ratio and high-definition continuous zooming, which is suitable for the field of airborne camera. Background technique [0002] At present, the airborne detection system requires the lens to be small in size, light in weight, large in detection distance, and high in definition. It can not only perform panoramic search of large areas with small magnifications, but also perform magnified observations of small areas with large magnifications. The optical structure of the traditional mechanically compensated zoom lens consists of four components: the front fixed group, the zoom group, the compensation group and the rear fixed group. However, there are generally disadvantages such as large volume, small zoom ratio, low resolution, poor image quality, unsuitable for airborne environment, and mismatch with high-definition cameras. [0003] With the continuous redu...

AI Technical Summary

Problems solved by technology

However, there are generally disadvantages such as large volume, small zoom ratio, low resolution, poor image quality, unsuitable for airborne environment, and mismatch with high-definition cameras.

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