Ultrahigh-resolution imaging optical system and imaging method of submicron pixels

Abstract

Provided is an ultrahigh-resolution imaging optical system and imaging method of submicron pixels. The system comprises a first aspheric correction lens (1), a second aspheric correction lens (2), a reflex lens (3), a main reflector (4), a field lens (5) and an imaging image plane (6), and light is reflected through the correcting lens group and the reflex lens (3) and collected to the imaging image plane in the field lens (5) through the main reflector (4). The problem that a conventional optical system fails to handle a high-precision optical detector with correcting lenses of large apertureis overcome, and the system is applicable to conventional optical detectors.

Description

technical field [0001] The invention relates to an ultra-high resolution imaging optical system and an imaging method of a submicron-level pixel, belonging to the technical field of optical design. Background technique [0002] The imaging detector is the key core device of the space optical remote sensing camera, and the pixel size and pixel density of the detector are key indicators that affect the camera's capabilities. Traditional spaceborne high-resolution imaging remote sensors generally use detectors with pixel sizes above 7 μm. With the development of commercial remote sensing technology, more and more micro-nano satellite payloads use detectors with small pixel sizes to reduce the cost of system implementation. Imaging devices with small pixel size are one of the ways to realize the payload of tiny satellites. [0003] In recent years, with the development of semiconductor technology and imaging detector technology, the pixel size has exceeded 1um. Internationall...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: in view of the relatively large focal length and aperture of the traditional optical system in the current prior art, it is difficult to meet the requirement of a relatively small focal length and aperture ratio matched by the ultra-high sampling frequency, and a submicron-level pixel is proposed. Ultra-high resolution imaging optical system and imaging method

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