Day and night high-resolution fish-eye lens

Abstract

The invention relates to a day and night high-resolution fish-eye lens. An optical system of the lens is sequentially provided with a front set A with negative focal power, an iris diaphragm C and a rear set B with positive focal power along the incident direction of light, wherein the front set A is sequentially provided with a negative meniscus lens A-1, a negative meniscus lens A-2, a negative meniscus lens A-3, a biconcave lens A-4 and a biconcave lens A-5; and the rear set B is sequentially provided with a gluing set which is hermetically connected with a biconcave lens B-1, a biconcave lens B-2 and a biconcave lens B-3 as well as a biconcave lens B-4. The light path of the day and night high-resolution fish-eye lens is in a fish-eye optical structure, has the advantages of low distortion, large relative aperture, high in resolution, and confocal broadband spectrum and the like and can satisfy 360-degree panorama monitoring demand. The edge amplification multiplying power is great, and definition of the edge picture is ensured, so that the lens is a novel development direction of a micro-TV monitoring and picture pick-up system.

Description

technical field [0001] The invention relates to a camera lens device of a miniature video camera system, in particular to a high-resolution day and night dual-purpose fisheye lens. Background technique [0002] It has been 20 to 30 years since the appearance of small TV surveillance cameras. After years of innovation and development, different series of miniature camera lenses with various specifications and models have been formed for supporting use. However, the performance indicators of these lenses are mixed, and most of them are low-end products with low performance indicators, which are only suitable for ordinary cameras with megapixels; the image distortion of these products is relatively large, and the difference between image distortion and the real scene becomes larger, and the authenticity is poor. , the edge resolution is not enough to meet the current needs. [0003] With the expansion of the optical material library and the enhancement of social security aware...

AI Technical Summary

Problems solved by technology

However, the performance indicators of these lenses vary, and most of them are low-end products with low performance indicators, which are only suitable for ordinary cameras with megapixels; the image distortion of these products is large, and the difference between image distortion and the real scene becomes larger, and the authenticity is poor. , the edge resolution is not enough to meet the current needs

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