Multi-band high-resolution tomographic imaging device for solar atmosphere based on adaptive optical system

Abstract

The invention discloses a multi-band high-resolution tomographic imaging device for solar atmosphere based on an adaptive optical system. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system is mainly composed of a collimating mirror, a wave front corrector, a shrinkage beam system, a dichroic beam splitter, a shack-hartmann wave front sensor, a fine tracking wave front sensor, a wave front controller, a blue light imaging channel, a red light imaging channel, a near infrared imaging channel and a data storage system. Different bands of sunlight are corresponding to different heights of the solar atmosphere. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system realizes the high-resolution tomographic imaging of the solar atmosphere through simultaneously imaging multiple bands of sunlight and using the adaptive optical system to eliminate the influence of atmosphere turbulence on ground-based telescope imaging. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system uses the adaptive optical system to guarantee the space definition of images, multiple bands of sunlight enter different imaging channels successively according to the wavelength, and the energy utilization of each imaging channel is improved. The multi-band high-resolution tomographic imaging device for the solar atmosphere based on the adaptive optical system has an important application prospect in the sun observation field and is significant for the solar physics research.

Description

technical field [0001] The invention relates to a solar atmosphere multi-band high-resolution tomography device, in particular to a solar atmosphere multi-band high-resolution tomography device based on an adaptive optical system. Background technique [0002] According to the theory of solar physics, the solar atmosphere at different altitudes has different temperatures, which correspond to different spectra. By using filters or spectrometers to observe the sun at different wavelengths, we can obtain different levels of solar structure maps (see: solar activity area physics, written by Fang Cheng, Ding Mingde, and Chen Pengfei, Nanjing University Press, pp.5-8), on the other hand, with the deepening of solar physics research, the requirement for the space scale in solar observation is getting smaller and smaller, that is, Observing instruments are required to have higher spatial resolution. Ground-based large-aperture solar telescopes are affected by atmospheric turbulence,...

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The high-resolution images of the sun at different wavelengths are collected and stored by the data recording system 5

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