Distortion-eliminating ultra-micro nano optical system based on pixel-level polaroid

Abstract

The invention discloses a distortion-eliminating ultra-micro nano optical system based on a pixel-level polaroid, and relates to the technical field of space optics. The distortion-eliminating ultra-micro nano system solves the problems that an existing satellite-borne ocean remote sensing system is high in implementation cost, complex in structure, incapable of achieving real-time observation and the like. The system comprises a ground correction lens and spaceflight anti-radiation lens set, a double-Gaussian imaging lens set, an image quality correction lens set and a pixel-level detector, wherein part of stray light is filtered by a light beam emitted by a target through an outer light shield, the light beam is finally imaged and received at the pixel-level polarization detector through the imaging lens set and the image quality correction lens set, and polarization image information of four ocean targets of 0 degree, 45 degrees, 90 degrees and 135 degrees of the target is obtained by a receiving image surface; and the optical system is provided with a field diaphragm, an inner light shield and an outer light shield. The optical system is designed into a form of double Gaussian objective lenses, the total length of the optical system is strictly controlled, space on a satellite is saved when the optical system is used for satellite-borne imaging, the camera quality is reduced, and the emission cost is saved.

Description

technical field [0001] The invention relates to the technical field of space optics. Specifically, it relates to a distortion-eliminating ultra-micro-nano optical system based on a pixel-level polarizer. Background technique [0002] As a new technology in the field of remote sensing and earth observation imaging, polarization imaging technology can obtain information of long-distance images in harsh environments, and characterize the intensity, roughness, texture and other aspects of the target. Compared with traditional imaging detection, it can provide comprehensive information including polarization and all its intensity information, and enhance the discrimination or recognition ability of the target. Utilizing the differences in radiation intensity and polarization characteristics of the target itself to distinguish the target from the background can effectively highlight the outline information of the target, enhance the details of the image, and facilitate the survey...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high cost, complex structure, and inability to observe in real time in the existing satellite-borne ocean remote sensing system, the present invention proposes a distortion-eliminating ultra-micro-nano optical system based on pixel-level polarizers

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