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Radial support mechanism of primary mirror of large aperture telescope for eliminating temperature stress

A technology of radial support and temperature stress, applied in telescopes, optics, instruments, etc., can solve the problems of large dimensions affecting the overall structural performance, inconsistent thermal expansion coefficients, etc., achieve high support accuracy, avoid mirror distortion, and eliminate the effects of influence

Active Publication Date: 2011-06-01
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of inconsistent thermal expansion coefficients of primary mirror materials and supporting materials in the prior art, the support accuracy of large relative aperture primary mirrors, and the problem that large external dimensions affect the overall structural performance, the purpose of the present invention is to eliminate temperature stress. Radial Support Mechanism for Primary Mirror of Large Aperture Telescope

Method used

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  • Radial support mechanism of primary mirror of large aperture telescope for eliminating temperature stress
  • Radial support mechanism of primary mirror of large aperture telescope for eliminating temperature stress

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] The present invention uses the principle of lever balance to propose a structural diagram of the radial support mechanism for the primary mirror of a large-aperture telescope that eliminates temperature stress. figure 1 As shown, it includes: radial support seat 2, main mirror seat 3, lever bracket 4, counterweight 5, lever 6, lower auxiliary slide rod 7, bearing cover plate 8, mounting screws 9, 10, rolling bearing 11, indium steel Sleeve 12; wherein the indium steel sleeve 12 is set on the radial support seat 2, and the radial support seat 2 is located in the middle of the indium steel sleeve 12, and silica gel is placed at their clearance fit, so that the indium steel sleeve 12 is fixed on the radial support on ...

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Abstract

The invention provides a radial support mechanism of a primary mirror of a large aperture telescope for eliminating the temperature stress, which consists of a radial support base, a lever bracket, clump weights, a lever, a lower pair slider bar, rolling bearings and an indium steel sleeve. The indium steel sleeve is sleeved on the radial support base which is located in the middle of the indium steel sleeve. Silica gel is dotted at a gap fit position between the radial support base and indium steel sleeve so that the indium steel sleeve is fixed on the radial support base. The lever is connected to the radial support base via two mounting screws. The pivot end of the lever is connected to the lever bracket by two rolling bearings through the lower pair slider bar. The clump weights are screwed in the lower end part of the lever in threaded connection. Two bearing cover plates cover the bearing holes on the lever bracket. When the radial support mechanism of the primary mirror works, the radial support mechanism is connected to and fixed on the primary mirror base by means of two mounting screws via the lever bracket, and the radial support base extends to the radial support holesof the primary mirror to be mounted.

Description

technical field [0001] The invention belongs to the technical fields of space exploration, astronomical observation, etc., and relates to a radial support mechanism and a support method for a primary mirror of a large-aperture telescope. Background technique [0002] In the technical fields of space detection and astronomical observation, in order to realize space long-distance target detection and explore the mysteries of the universe, it is necessary to increase the aperture of photoelectric detection equipment to improve the resolution of the system and collect more target energy, so that it is easier to find and identify targets . The large-aperture primary mirror in these optoelectronic devices is a key part of the entire device. It is affected by both the external environment and the support system. The surface shape distortion of the primary mirror generated by these effects will lead to a decrease in the optical image quality of the entire device. decline. The supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B23/16
Inventor 任戈谭毅梁文科史建亮秦苏立赵华向思桦边疆
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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