Large-target-surface high-resolution zoom digital camera lens

Abstract

The invention discloses a large-target-surface high-resolution zoom digital camera lens. The large-target-surface high-resolution zoom digital camera lens is characterized in that the lens is sequentially provided with a front fixing group with positive focal power, a zooming group with negative focal power, a compensating group with positive focal power, a variable aperture component and a rear fixing group with positive focal power which are all arranged along the incident direction of the light; the front fixing group is sequentially provided with a front-fixing-group gluing lens, a biconvex lens and a second crescent lens; the zooming group is sequentially provided with a zooming-group gluing lens and a negative crescent lens; the compensating group is sequentially provided with a compensating-group gluing lens hermitically connected through the compensating-group negative crescent lens and the compensating-group biconvex lens and a compensating-group crescent lens; the rear fixing group is sequentially provided with a first biconcave lens, a first positive crescent lens, a rear-fixing-group reflective lens, a rear-fixing-group gluing lens hermitically connected through the second biconcave lens and the second positive crescent lens, a first biconvex lens, the negative crescent lens and a second biconvex lens. By the arrangement, problems that a small lens system is small in target surface and low in resolution can be solved on the small-sized lens.

Description

technical field [0001] The invention relates to a high-resolution zoom digital camera lens with a large target surface, which belongs to the field of optoelectronic technology, and is especially suitable for the field of unmanned investigation and photographing such as airborne. Background technique [0002] Lenses suitable for unmanned reconnaissance such as airborne not only require small size and light weight, but also require large-scale search and small-scale observation and identification of targets, and can achieve continuous detection in rain, snow, fog and other severe weather conditions. Observe and take pictures. Therefore, this type of lens should also have requirements such as high resolution, long focal length, and large field of view. The existing airborne and other unmanned reconnaissance zoom lenses have a small target area, short focal length, poor image quality, limited ability to search and identify targets, and their application range is greatly restric...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a large-target high-resolution zoom digital camera lens with long focal length, large field of view, and high resolution, which is suitable for unmanned investigation fields such as airborne, and can solve the problem of existing small lens systems on small-sized lenses. The problem of small target area and low resolution

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