Multilayer curve compound eye type imaging system with large visual field of 180 DEG

Abstract

The invention discloses a multilayer curve compound eye type imaging system with a large visual field of 180 DEG. The system comprises a first layer of lens array, a second layer of lens array, a third layer of lens array, a fourth layer of lens array and an image sensor array arranged in sequence; all layers of lens arrays are arranged on the same spherical substrate, a spherical peak is used as a center, a micro lens is placed as a central lens, the optical axis of the micro lens passes through the spherical peak and a spherical center, six micro lenses are arranged outside the micro lens by using hexagonal structures, and the included angles between the optical axes of the six micro lenses and the optical axis of the central lens are all equal to theta; and all the lens arrays and the image sensor array are arranged in the same way. The design concept of a multilayer compound eye structure is adopted, and incident light from different visual fields is received in a way of multi-path CCD (Charge Coupled Detector) combination, so that the lens can obtain an image with higher quality while ensuring the characteristics of compound eye and large visual field; and in addition, the multilayer curve compound eye type imaging system is small and compact in whole structure and convenient to apply.

Description

technical field [0001] The invention relates to the field of bionic compound eye imaging, in particular to a large field of view imaging system. Background technique [0002] In recent years, the bionic compound eye imaging system has attracted extensive attention of researchers. Its unique characteristics of large field of view, small size, and high sensitivity to moving objects make it have great potential for applications in medical, industrial, and national defense fields. . The compound eye is a small and precise optical structure existing in nature. Different from the single-aperture imaging system we are familiar with, the compound eye is composed of many hexagonal sub-eye units, and these hexagonal sub-eyes are closely arranged on a curved surface. Each sub-eye is composed of corneal lens, cone, rods and photoreceptor cells. Due to the small size, each sub-eye can only image a certain field of view in the space. When all the sub-eyes work together, they can detect...

AI Technical Summary

Problems solved by technology

[0005] To sum up, due to the constraints of current processing technology, imaging quality and other factors, a compound eye system with a field of view of 180°, a compact overall structure, and high image quality has not yet been realized.

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