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Primary mirror flexible support mechanism

A flexible support and flexible technology, applied in the field of flexible support mechanism of the main mirror, can solve the problems of inability to isolate external temperature changes, mutual interference of radial support mechanisms, influence of the shape of the main mirror, etc., achieve good thermal adaptability, and ensure free decoupling. , the effect of high radial stiffness

Active Publication Date: 2017-05-31
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

[0005] In order to solve the problems that the existing primary mirror support mechanism cannot isolate the external temperature change, there are installation and adjustment errors, and the mutual interference between the axial support component mechanism and the radial support mechanism with different pitch angles, and then the influence on the surface shape of the primary mirror, etc., A primary mirror flexible support mechanism is provided

Method used

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  • Primary mirror flexible support mechanism

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specific Embodiment approach 1

[0025] Specific implementation mode 1. Combination Figure 1 to Figure 8 In this embodiment, a flexible support mechanism for a primary mirror includes a primary mirror 1, a support seat 2, an axial support assembly, a radial support assembly, and a protection assembly. Among them, the axial support components are divided into two parts: three groups of 120-degree uniform axial support components responsible for providing support force, such as Figure 5 As shown, it includes the following components: screw ball socket 9, fixed ball socket 10, ball head adjustment screw rod 11, support lock nut 12 and threaded mounting seat 13. Three groups of 120-degree uniformly distributed stretching components responsible for keeping the primary mirror close to the axial support component, such as Image 6 As shown, it includes the following components: indium steel bonding pad 3, spring holder 4, stretch rod 5, compression spring 6, fixed ring 7 and tension lock nut 8, and the radial sup...

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Abstract

A primary mirror flexible support mechanism relates to a primary mirror flexible support mechanism. The mechanism is provided to solve the problem of the existing primary mirror support mechanism, namely, the existing mechanism cannot isolate outside temperature change and has alignment error, the axial support component mechanism and the radial support mechanism interfere with each other as the pitch angle changes, and thus, the surface shape of the primary mirror is affected. The primary mirror flexible support mechanism comprises a support base, an axial support component supporting a primary mirror, a tensile component glued onto the back of the primary mirror, a radial support component glued to the center of the primary mirror, and a protective component. The radial support component comprises a flexible mandrel adhered into the center hole of the primary mirror, a center cylinder installed in the middle of the support base through spigot fitting, and a flexible diaphragm arranged between the center cylinder and the flexible mandrel. The protective component comprises an O-shaped rubber ring and a protective ring. The problem that the primary mirror may be broken due to overturn after failure of the axial support is prevented. The protective device ensures that the primary mirror can be protected under certain amplitude of vibration.

Description

technical field [0001] The invention relates to a flexible supporting mechanism for a primary mirror. Background technique [0002] In the technical fields of space detection and astronomical observation, in order to improve the resolution, it is necessary to increase the aperture of the photoelectric detection equipment, and with the increase of the aperture, the shape of the supporting surface of the primary mirror is easily affected by the external temperature change and the installation accuracy. It will lead to distortion of the main mirror shape, which will affect the imaging quality of the entire optoelectronic device. [0003] Although the existing primary mirror support device can meet the requirements of support accuracy, it cannot isolate the influence of external temperature changes and errors introduced by assembly and adjustment. Due to the different materials between the primary mirror and the support seat, the thermal expansion coefficient is also different. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/183
CPCG02B7/183
Inventor 孙敬伟吴小霞李剑锋张景旭
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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