Spatial observation optical remote sensing equipment very large diameter expansible primary mirror precision locking apparatus

An optical remote sensor and locking device technology, applied in the directions of measuring devices, optics, optical components, etc., can solve the problems of difficulty in realization, difficulty in manufacturing, and difficulty in changing, so as to reduce the difficulty of processing, reduce the difficulty of control, and improve the accuracy of locking Effect
CN101236288AInactive Publication Date: 2008-08-06BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Publication Date
2008-08-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a precise locking device for a super-large caliber expandable primary mirror of an optical sensor for space observation, comprising a positioning device and a locking device, wherein the positioning device comprises a set of positioning blocks confining three free degrees, a set of positioning blocks confining two free degrees and a set of positioning blocks confining one free degree; each set of positioning block a positioning block fixed on a bracing structure of a middle mirror of the primary mirror and a sub-positioning block fixed on a bracing structure of a block mirror of the primary mirror. The locking device comprises a fixed spring nut, a front foundation, a spring, a locking nut, a rear foundation, a push bearing, a locking bolt, a decelerator and a stepper motor. The locking device of the precise locking device carries out positioning and locking separately so as to de-skill the processing and controlling difficulty, improves the precision of positioning and the stability of locking and realizes the nano-scale stability. The invention is also applicable to other large space expansion mechanism.
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Description

technical field

[0001] The invention belongs to the field of space optics precision deployment mechanism, in particular to a space observation optical remote sensor extra-large diameter expandable primary mirror locking device for precise locking. Background technique

[0002] With the rapid development of space camera technology and the continuous improvement of demand, the requirements for space camera resolution are getting higher and higher, and the basic way to improve the resolution is to increase the aperture of the optical system. If the primary mirror of the super-large aperture (β‰₯4m) of the space observation optical remote sensor adopts the traditional integral large-aperture optical system, considering the requirements of energy and transfer function, the optical system has a large aperture and a long focal length (β‰₯35m), and the primary mirror is very large. Heavy (18,000kg). If the traditional weight reduction method is used to reduce weight, the main mirror wi...

Claims

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