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Semi-active mirror support and positioning system

A mirror-surface, semi-active technology, applied in instruments, installations, optics, etc., can solve the problems of superposition of structural layers, complex systems, and large structural limitations.

Inactive Publication Date: 2019-02-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Claims
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Problems solved by technology

[0004] The disadvantages of the above-mentioned mirror support method are: the structure of the axial support and lateral support based on the traditional passive support is complex, and the structure is relatively limited, and the increase of support points will lead to the superposition of structural layers; while the advanced active support method requires real-time detection. Closed-loop control, complex system, high cost

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  • Semi-active mirror support and positioning system
  • Semi-active mirror support and positioning system
  • Semi-active mirror support and positioning system

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Relative arrangements of components and steps are set forth in these embodiments unless specifically stated otherwise. Expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for the convenience of description, the sizes of th...

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Abstract

The invention discloses a semi-active mirror support and positioning system for supporting and positioning the mirror, including a mirror support system and a mirror pose adjustment system; the mirror support system includes an axial support system and a lateral support system, and The mirror pose adjustment system includes an axial mirror pose adjustment system and a lateral mirror pose adjustment system; the axial mirror pose adjustment system is used to adjust the translation of the mirror surface along the Z axis, around the X axis, and the Y axis Three degrees of freedom of rotation, including displacement actuators for axial pose adjustment, axial displacement sensors; axial support system, used to bear the axial component W*sinθ of gravity of the mirror surface, including axial fluid force actuator. Therefore, the axial support and positioning of the reflective mirror surface of the present invention are controlled and driven based on fluid pressure, which can realize the precise axial positioning function of the mirror surface.

Description

technical field [0001] The invention relates to a positioning and supporting device, which is used for supporting and positioning a large precision optical reflection mirror, and is especially suitable for supporting and positioning a main mirror of a large astronomical telescope. Background technique [0002] Precision optical mirrors need stable and precise support and positioning. For example, in the process of tracking and observing celestial bodies with astronomical telescopes, the mirrors often need to start from the lowest pointing close to the ground level and turn to the highest pointing at the zenith, that is, often need to realize the pitch angle The range is from 0 degrees to 90 degrees, and it is necessary to ensure that the mirror surface always maintains the required surface shape accuracy and positioning accuracy during the tracking process. This requires good positioning and support of all mirrors of the astronomical telescope, especially the primary mirror....

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/198
CPCG02B7/198
Inventor 杨德华王正兰吴常铖费飞
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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