Double-shaft multi-optical path channel switching device suitable for large solar telescope

Abstract

Provided is a double-shaft multi-optical path channel switching device suitable for a large solar telescope. The switching device consists of a radial adjusting seat 1, an inclined fixed seat 2, a support 3, a view field diaphragm 4, a vertical rotation shaft motor 5, an axial adjusting seat 6, a double-channel rotation shaft 7, a polarization device 8, a driving worm and gear pair 9, a horizontal rotation motor 10, a positioning switch 11, a connection plate 43, a circular separation plate 12, a locking screw 42, an adjusting screw 13, an adjusting screw 31 and an adjusting screw 41. According to the invention, rapid switching and precise positioning of polarization devices or other optical devices can be achieved through computer control; rapid switching and precise positioning of different sizes of view field diaphragms or other devices can be achieved through computer control; by setting a five-dimensional manual adjusting mechanism, positions of the polarization devices and the diaphragms can be precisely adjusted and firmly locked; and the switching device is compact in structure and will not shield optical paths.

Description

technical field [0001] The invention relates to the field of structural design of astronomical telescopes, in particular to the support and switching structure design of a polarization device and a field of view diaphragm at the focal point of a large solar telescope F2. Background technique [0002] Large-scale solar telescopes are generally equipped with multiple focal points for arranging different functional components, such as the thermal field of view diaphragm at the main focus F1; the Gregorian focal point F2 with magnetic analysis instruments and the second field of view diaphragm; the folding axis focus F3 is equipped with various scientific instruments. [0003] For the magnetic analysis instrument arranged in front of F2, it is necessary to have the function of moving in and out of the optical path, so as to avoid frequent removal and replacement of the magnetic analysis instrument when the telescope switches between magnetic field measurement and other observati...

AI Technical Summary

Problems solved by technology

[0004] The Gregorian focus F2 is located in the center of the lens barrel, and its front end needs to be arranged with two components, the magnetic analysis instrument and the second field of view diaphragm. At present, there are technical problems to be solved: 1) The two components need a support mechanism, the support mechanism Need to have full degree of freedom adjustment and locking function; 2) Magnetic analysis instrument needs to switch structure to realize cutting in and out; 3) The second field of view diaphragm also needs to switch mechanism to realize switching between different sizes of diaphragm; 4) Support mechanism and switching The structure requires high precision and is limited by the size of the space; 5) the support and switching mechanism itself and the parts are not allowed to block the optical path in the cut-out position

Images