A thermal diaphragm adjustable segmented support device for coaxial solar telescope

Abstract

The invention discloses a hot diaphragm adjustable segmentation supporting device for a coaxial solar telescope. The hot diaphragm adjustable segmentation supporting device is composed of a hot diaphragm, inner-ring narrow beams, metal capillary tubes, an inner ring, hoses, outer-ring wide beams, guide rails and an outer ring. The hot diaphragm adjustable segmentation supporting device for the coaxial solar telescope has the advantages of being less in blocked light, adjustable and the like, further improves the accuracy of wavefront detection of a solar telescope self-adaptation optical system, and finally improves the imaging quality of the solar telescope. Meanwhile, optical assembly and adjustment of the hot diaphragm are greatly simplified. The hot diaphragm adjustable segmentation supporting device for the coaxial solar telescope can be applied to supporting various hot diaphragms of the coaxial solar telescope, and is remarkable in innovation performance and practicability.

Description

Technical field [0001] The invention relates to the field of solar watch structure design, in particular to a thermal aperture adjustable segmented support device for a coaxial solar telescope. Background technique [0002] Solar telescopes, especially large-aperture solar telescopes, mainly adopt a coaxial Gregorian optical system or an off-axis Gregorian optical system. Compared with the off-axis Gregorian optical system, the coaxial Gregorian optical system has the characteristics of relatively low processing and assembly difficulty, and relatively small engineering risk. Therefore, it is regarded as the new generation of large-aperture solar telescopes by most countries in the world. Optical system. [0003] On the one hand, with the continuous increase in the aperture of the solar telescope, while improving the observation resolution of the solar telescope, it also greatly improves the light-gathering ability of the solar telescope. When the diameter of the large-aperture pr...

AI Technical Summary

Problems solved by technology

Secondly, due to the coaxial Gregorian optical system, the light beam from the primary mirror M1 to the third mirror M3 through the secondary mirror M2 is on the same optical axis (as shown in the attached figure 2 As shown), therefore, the thermal diaphragm support structure and the cooling pipeline will inevitably block the light, and finally form a spider-like support shadow on the pupil surface, causing the partial sub-aperture of the Hartmann sensor used for wavefront detection in the rear-end adaptive optics system to be blocked , affecting the accuracy of wavefront detection, reducing the ability of the adaptive optics system to correct wavefront aberrations, and ultimately deteriorating the imaging quality of the telescope

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