Large-view-field high-resolution imaging device based on solar surface layer conjugate adaptive optical system

Abstract

A large-view-field high-resolution imaging device based on a solar surface layer conjugate adaptive optical system is composed of the surface layer conjugate adaptive optical system and a high-resolution image reconstruction system, wherein the surface layer conjugate adaptive optical system comprises a tracking subsystem, a multi-sight-line wavefront sensor, a surface layer atmosphere wavefront corrector, a wavefront controller and an imaging subsystem. The device is characterized in that the surface layer conjugate adaptive optical system is used firstly for detecting and correcting surface layer turbulent flows and improving the imaging quality in a large view field; and part of corrected images are reconstructed by the high-resolution image reconstruction system, so that high-resolution sun images are obtained. According to the device, the surface layer conjugate adaptive optical system is used for eliminating the influence of surface layer turbulent flows, improving the atmospheric seeing, enhancing the imaging signal-to-noise ratio and improving the imaging quality, so that the high-resolution reconstruction of sun images is accurate and efficient, and the device is of great importance to solar physics research.

Description

technical field [0001] The invention relates to a large field of view adaptive optics system, in particular to a large field of view high-resolution imaging device based on a conjugate adaptive optics system on the surface of the sun, belonging to the field of adaptive optics technology. Background technique [0002] Adaptive optics is the main technical means for ground-based large-aperture telescopes to solve atmospheric turbulence and obtain high-resolution imaging. At present, adaptive optics systems have become an indispensable part of ground-based large-aperture telescopes; however, due to the influence of atmospheric anisotropy, automatic The corrected field of view of the adaptive optical system is very small. Usually, a good correction effect can only be obtained within a few milliseconds of the field of view in the visible light band. For this reason, at the beginning of the realization of this technology, people have been working on how to break through the limita...

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Problems solved by technology

[0004] The technology of the present invention solves the problem: Aiming at the problem that the existing solar observation cannot satisfy the large field of view and high resolution at the same time, a large field of view high resolution imaging device based on the conjugate large field of view adaptive optics technology on the surface of the sun is provided. The device first obtains a large field of view partially corrected image through the surface conjugate adaptive optics system, and then uses a high-resolution image reconstruction system to perform high-resolution reconstruction of the solar surface structure image, and finally obtains a large field of view high-resolution image

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