Five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors

An off-axis aspheric surface and platform adjustment technology, which is applied in installation, optics, instruments, etc., can solve the problems of restricting the manufacturing technology of large-diameter reflective elements, lack of assembly standards, and low efficiency, so as to achieve high position adjustment accuracy and improve motion adjustment High precision and high adjustment efficiency

Pending Publication Date: 2021-07-16
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The splicing and assembly of large-diameter aspheric surfaces currently relies on experienced engineers and technicians to manually adjust through trial and error, which is not only inefficient, but also lacks a unified assembly standard, which also restricts large-diameter Manufacturing Technology of Reflective Elements

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  • Five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors
  • Five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors
  • Five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors

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Embodiment Construction

[0034] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifyi...

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Abstract

The invention discloses a five-degree-of-freedom adjusting platform for splicing off-axis aspheric sub-mirrors, a first mobile platform is used for realizing two-degree-of-freedom adjustment of movement in X and Y directions, a second mobile platform is arranged above the first mobile platform, and the second mobile platform is used for realizing three-degree-of-freedom adjustment of movement in Z direction and turnover movement in X and Y directions. The second mobile platform is provided with an off-axis aspheric sub-mirror, and five-degree-of-freedom pose adjustment of the off-axis aspheric sub-mirror is realized through the first mobile platform and the second mobile platform. According to the invention, the motion position information of the linear motor can be collected in real time, the position adjustment precision is high, the adjustment efficiency is high, and the micron-order adjustment precision of the position attitude of the off-axis aspheric sub-mirror is realized.

Description

technical field [0001] The invention belongs to the technical field of manufacturing large-scale aspheric reflective elements, and in particular relates to a five-degree-of-freedom adjustment platform for splicing off-axis aspheric sub-mirrors. Background technique [0002] Terahertz radar has become one of the development directions of high-precision and anti-stealth radar in the future. The terahertz antenna system usually requires an aspheric array with an aperture of more than 3m. In my country's medium-term development plan, the use of The aspheric surface of the caliber is used as the reflective element of the terahertz radar. In the long-term plan, it is planned to further expand the caliber of the reflective element to above. [0003] In view of the current limited manufacturing capacity of large-caliber aspheric lenses, at present, the maximum diameter of aspheric lenses produced by my country is 4.03m, and the precision is micron level. In order to realize the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/198G02B7/183G02B7/182
CPCG02B7/1821G02B7/183G02B7/198
Inventor 李兵兰梦辉魏翔吴修远
Owner XI AN JIAOTONG UNIV
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