Whiffletree support structure applied to statically determined support of large-aperture reflector

Abstract

The invention relates to a whiffletree support structure applied to the statically determined support of a large-aperture reflector. The whiffletree support structure comprises a rotary shaft, a cross bar, a polishing pad, a rotary shaft and cross bar connection screw, a rotary shaft and cross bar positioning pin, a lens body back bonding part, a flexible rod and lens back bonding part connection screw, a flexible rod and lens back bonding part positioning pin, two flexible rods, a cross bar and flexible rod connection screw, a cross bar and flexible rod positioning pin, a polishing pad and rotary shaft connection screw, and a polishing pad and rotary shaft positioning pin. According to the invention, the number of support points of a reflector is increased on the condition that no extra-constraint is adopted. In this way, the resistance of the reflector to the gravity-caused deformation is effectively improved and the accuracy of the mirror surface of the reflector is also increased. The rotary shaft and the flexible rods are embedded into the design of the cross bar, so that the problem that the Whiffletree support structure is overlarge in dimension along the optical axis direction of the reflector can be effectively solved. The engineering implementation is facilitated.

Description

technical field [0001] The invention belongs to the technical field of ground and space remote sensing, and relates to a whiffletree support structure applied to the static support of large-diameter reflectors. Background technique [0002] Ground and space remote sensors are used to conduct general surveys and detailed surveys of earth and space resources, and their applications in fields such as ground observation and space exploration have important scientific and economic significance. The optical elements in the ground and space remote sensors, especially the large-aperture mirrors are the most important components in the entire optical system, and its surface shape accuracy is directly related to the imaging quality of the entire remote sensor. In the field of optics, those with a clear aperture greater than 600mm are usually called large apertures. Due to the large size and high quality of the mirror surface, it often causes deformation of the mirror surface. The qua...

AI Technical Summary

Problems solved by technology

The advantages and disadvantages of this structure are: due to the limited rigidity of the mirror body itself, when the mirror body increases to a certain size, under the action of gravity, the deformation of the mirror body itself under the three-point support exceeds the design index requirements, which cannot meet the optical requirements. System Imaging Usage Requirements

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