Metal frame for supporting spherically-distributed large-aperture optical components

Abstract

The invention discloses a metal frame for supporting spherically-distributed large-aperture optical components. The metal frame comprises an inner-layer metal frame body of a dome-type structure and an outer-layer metal frame body of a dome-type structure. The inner-layer metal frame body and the outer-layer metal frame body are in rigid connection to form a whole through a plurality of connecting rods between the frame bodies. The inner-layer metal frame body and the outer-layer metal frame body are each formed by welding a plurality of arc stand columns, an upper circular beam and a lower circular beam parallel to the upper circular beam. The arc stand columns of the inner-layer metal frame body and the arc stand columns of the outer-layer metal frame body are each provided with a plurality of optical component module supporting units. The optical component module supporting units of the inner-layer metal frame body and the optical component module supporting units of the outer-layer metal frame body are opposite in installation direction. The lower circular beam of the outer-layer metal frame body is provided with a plurality of transverse supporting structures with the shock-proof function. A fixing piece is arranged at the column foot of each arc stand column. The metal frame is compact in structure, and large-aperture optical component segmented installation and operating maintenance are promoted through the overall structure.

Description

technical field [0001] The invention belongs to the technical field of inertial confinement nuclear fusion device development, and in particular relates to a metal frame for supporting spherically arranged large-diameter optical elements. Background technique [0002] Large-aperture optical components used in large-scale inertial confinement fusion (abbreviation: ICF) devices undertake the tasks of high-energy laser harmonic conversion and beam focusing. A certain number of large-aperture optical elements are arranged on the spherical surface with the bull's-eye as the center of the sphere, and are stably supported and positioned precisely by the supporting structure, so that the focal point of the beam coincides with the bull's-eye within a long time interval and a high-precision range to complete the laser The beam is focused on the target. Therefore, the support structure of large-aperture optical components needs to have good micro-vibration dynamic stability performanc...

AI Technical Summary

Problems solved by technology

The French megajoule device (LMJ for short) adopts a large cylindrical cage frame support and a cantilever structure frame platform to install and position large-aperture optical elements, and realizes the stable support of moderately densely arranged large-aperture optical elements. Restricted by limitations and stability requirements, it is still unable to meet the stable support requirements of large-aperture optical elements with higher density, greater quantity, and larger aspect ratio

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