A Wide Field of View High Resolution Optical System

Abstract

The invention discloses a wide-visual-field and high-resolution optical system. The optical system comprises an imaging lens array, an image sensor array, a signal processing unit, a first projection objective lens located between an object surface and a first image surface and a segmentation lens array, wherein units in the three arrays are in corresponding one-to-one mapping relation; the first image surface is segmented by the segmentation lens array into sub-visual-field arrays to allow the object surface to be imaged to the light sensing face of the image sensor array through the imaging lens array, the image sensor array is allowed to collect an image information array, the signal processing unit performs image processing on the image information array to obtain wide-visual-field and high-resolution calculation images; the first image surface is a concave spherical surface facing the object surface; the segmentation lens array, the imaging lens array and the image sensor array form units equally dividing a visual field imaging array and are radially regularly arranged by using the sphere center of the concave spherical surface or a close one point on the central line of the first projection lens as the center.

Description

technical field [0001] The invention relates to an optical system, in particular to a wide-field-of-view high-resolution optical system. Background technique [0002] Wide-field-of-view and high-resolution optical systems are widely used in fields such as biomedicine, aerial reconnaissance, and terrain mapping. However, due to the mutual restriction between the field of view and the resolution, it is generally impossible to obtain a wide-format high-resolution image with only one exposure. If it is necessary to increase the width during high-resolution imaging, mechanical scanning is generally used. However, it takes a long time to scan and acquire a wide-format image, and there is a time interval between frames, so this method is only effective for static scenes. For some applications, such as large-scale continuous monitoring, while obtaining a large field of view, it is necessary to ensure that the detailed information of the target cannot be lost, and it must be comple...

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Problems solved by technology

[0003] Generally speaking, under the current technical conditions, there are three main technical difficulties in wide-field high-resolution imaging: 1) The number of pixels on the current single-chip image sensor is far from meeting the requirements of wide-field high-resolution imaging On the order of 1 billion; 2) From the perspective of optical design, due to the existence of aberrations, it is very difficult to design and process a lens system that matches the resolution of a 1 billion-pixel image sensor; 3) Due to the wide field of view and high resolution The amount of information in the photos obtained by imaging is huge, which puts forward very high real-time requirements for image transmission and image processing, which is still a major technical problem for the current technical level

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