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A high-stability support structure applied to a long space mirror

A technology of supporting structure and mirror, applied in the field of aerospace optical remote sensor, can solve the problem of instability of the supporting structure of the mirror, and achieve the effects of good environmental adaptability, strong practicability and wide application range

Active Publication Date: 2022-07-29
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this support structure, the long strip mirror can achieve second-level stability, and has good resistance to mechanical environments. It can maintain high surface accuracy of the mirror in harsh mechanical environments, and solve the problem of poor support structure of the mirror. stability problem

Method used

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  • A high-stability support structure applied to a long space mirror
  • A high-stability support structure applied to a long space mirror
  • A high-stability support structure applied to a long space mirror

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The reflector supported by the elongated reflector support structure in the present invention is an off-axis reflector with a diameter of 505mm×235mm and a working temperature of 20±2°C, including a mirror frame 1, a center support 3, a side support 4, an upper Support 5, lower support 6 and 8 auxiliary glue points 7, such as figure 1 shown.

[0037] According to the principle of kinematics, the constraint of 6 degrees of freedom of the mirror is realized. The central support 3 is located in the center of the reflector 2, inserted from the back of the reflector 2 to play a supporting role, and the rest of the supports are inserted from the side of the reflector to play a support role.

[0038] The support point of the center support 3 coincides with the center of mass of the mirror 2, and its axis is parallel to the optical axis, so as to realize the constraint of the translation of the long axis direction and the short axis direction of the mirror 2; the side support ...

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Abstract

The invention relates to a highly stable support structure applied to a long space reflector, comprising a mirror frame, a central support, a side support, an upper support and a lower support; the mirror is installed in the mirror frame, and the central support is located at the center of the mirror; The support is inserted into the mirror from the side of the mirror frame; the upper support and the lower support are inserted into the mirror from the side of the mirror frame and are located on the other side of the side support, and the axes of the upper and lower supports are coincident; the upper and lower supports are based on the mirror The long axis of is placed symmetrically with respect to the axis of symmetry. By applying the support structure of the present invention, the elongated reflector can achieve second-level stability, and at the same time has a good ability to resist the mechanical environment, can maintain a high reflector surface shape accuracy in a harsh mechanical environment, and solve the problem of reflector support. The problem of structural instability.

Description

technical field [0001] The invention relates to a support structure for a long space mirror of an aerospace remote sensor, which belongs to the technical field of aerospace optical remote sensors and can improve the stability of the space mirror. Background technique [0002] In recent years, space earth observation remote sensing technology has developed rapidly, among which the off-axis three-mirror space camera has become an important space detection optical instrument. The mirror assembly is one of the core components of the off-axis three-mirror space camera. The surface shape accuracy of the mirror directly affects the imaging quality of the camera. The off-axis three-mirror optical system consists of three mirrors, of which the main mirror and the three-mirror are generally elongated. Compared with the coaxial camera, the clear aperture of the mirror is relatively large. During the process from development to on-orbit use, the mirror assembly must be able to withstan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/182
CPCG02B7/182
Inventor 张楠庞寿成黄颖李庆林常君磊张凤芹于生全魏志勇王媛媛杨沐赵南王春雨王聪
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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