Supporting device for front filter lens of space solar telescope

Abstract

The invention discloses a supporting device for a front filter lens of a space solar telescope. The supporting device comprises an upper support module, a lower support module and a middle support; an upper optical filter support is formed in the upper support module, and an upper optical filter is embedded in the upper support module through the upper optical filter support; a lower optical filter support is formed in the lower support module, and a lower optical filter is embedded in the lower support module through the lower optical filter support; the middle support is provided with an upper surface close to one side of the upper support module and a lower surface close to one side of the lower support module; and the lower surface is a reference surface, the upper surface is obliquely arranged relative to the lower surface, and a 2-degree included angle is formed between the upper surface and the lower surface. According to the supporting device, the three-section structure of the upper support module, the lower support module and the middle support is adopted, and the upper surface and the lower surface which form the included angle of 2 degrees are designed on the middle support, so that the machining difficulty of the mirror base is greatly reduced, the machining cost is correspondingly reduced, and the three-section structure also reduces the assembly difficulty.

Description

technical field [0001] The invention relates to the technical field of space optical remote sensing, in particular to a support device for a pre-filter of a space solar telescope. Background technique [0002] In the space optical system, in order to accept light of a specific wavelength, a filter is often installed in front of the lens of the space camera. When the space camera is working, multi-spectrum optics enter the optical system, and the filter allows the specific required spectrum of light to pass through. , reflecting light from other spectral bands. In the general sense, the filter has only one lens. The Hα-band solar telescope is the first in the world to image the sun in this band. It uses two lens bodies and is set at an angle of 2°, so it is very difficult to support. In order to more accurately screen the spectral light incident into the optical system, double-layer filters are often used. Since the double-layer filters are parallel to each other, light inc...

AI Technical Summary

Problems solved by technology

In terms of processing and design, this method requires a 2° angle between the two mirrors. Not only is the structure of the mirror base difficult to process, but the processing accuracy of the mirror base is also high, and high requirements are also required for assembly. The corresponding cost is higher

At the same time, there may be assembly stress during assembly, which affects the surface shape accuracy of the filter

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