Lens cone structure of large-aperture solar telescope

Abstract

The invention discloses a lens cone structure of a large-aperture solar telescope. The lens cone structure comprises a four-leaf beam, an F1 focus, a truss, a four-way joint and a balance weight; thetruss is fixedly connected to the upper portion of the four-way joint; the four-leaf beam is fixedly connected with the upper end of the truss; the F1 focus is fixed to the portion, below the four-leaf beam, of the truss; and the detachable balance weight is arranged at the lower end of the four-way joint. The main lens chamber of the solar telescope is connected with the four-way upper ring; thelens cone pitch axis of the solar telescope is located on the upper center of the four-way joint; and the main lens chamber of the solar telescope is completely exposed on the four-way joint. The lenscone structure is convenient to mount and dismount; the counterweight weight of the lens cone can be effectively reduced, and the influence of the turbulence phenomenon formed by the heat effect of sunlight irradiated on the four-way joint on the imaging quality of the telescope can be effectively reduced; the area of sunlight irradiated on the surface of the truss can be effectively reduced, sothat the influence of turbulence formed by heat effect on the imaging quality of the telescope is reduced.

Description

technical field [0001] The invention belongs to the field of astronomical telescopes, and in particular relates to a lens barrel truss structure of a large-diameter solar telescope. Background technique [0002] As the aperture increases, the structure of the telescope also increases rapidly. The primary mirror of the solar telescope is very sensitive to the thermal environment. On the one hand, as the thermal inertia of the primary mirror increases, the temperature gradient inside the primary mirror and the hysteresis of the primary mirror temperature relative to the ambient temperature become more and more obvious, which affects the accuracy of the reflective surface of the telescope; on the other hand, the relationship between the outer surface of the primary mirror and the external environment The contact area is larger, but the relative heat dissipation area is smaller. The temperature difference between the reflective surface and the environment causes strong thermal ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of large volume and mass of the lens barrel, and to design a detachable connected truss structure to facilitate the transportation, installation and disassembly of the overall structure of the lens barrel

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