High-precision focusing mechanism for space optical remote sensor

A space optical remote sensing, high-precision technology, applied in the field of space remote sensing, can solve the problems of non-linear focusing amount, increase the difficulty of focusing control and assembly, complex mechanism, etc., and achieve small size, light weight and high focusing precision Effect

Inactive Publication Date: 2015-05-27
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of this high-precision light and small focusing mechanism are: the focusing mechanism uses a link mechanism as a connecting part, the mechanism is complex, and the focusing amount is nonlinear, which increases the difficulty of focusing control and assembly

Method used

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  • High-precision focusing mechanism for space optical remote sensor
  • High-precision focusing mechanism for space optical remote sensor
  • High-precision focusing mechanism for space optical remote sensor

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Such as Figure 3-5 As shown, the high-precision focusing mechanism applied to space optical remote sensors includes: a driving part and an execution part; wherein, the driving part includes: a motor 23, a first coupling 24, a first bearing 36-1 and a worm 37 The actuator includes: encoder 25, second coupling 26, bearing housing 27, second bearing 36-2, third bearing 36-3, worm wheel 28, Hall element 29, magnetic steel 30, lead screw 35, Special-shaped nut 34, screw 33, linear bearing seat 40, linear bearing 39, sliding shaft 38, adapter seat 41, focusing lens assembly 32, linear guide pair 31 and focusing base 42.

[0023] The output shaft of the motor 23 is fixedly connected to the input shaft of the worm 37 through the first coupling 24, and the two ends of the worm 37 are fixedly connected to the focusing base 42 through the first bearing 36-1, an...

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Abstract

The invention discloses a high-precision focusing mechanism for a space optical remote sensor, and belongs to the technical field of space remote sensing, and solves the problems that the existing focusing mechanism is complicated in structure and nonlinear in focusing amount, and increases the focusing control and assembly difficulty as a connecting rod mechanism is used as a connecting part. A driving part comprises a motor, a first coupler and a worm; an executing mechanism comprises an encoder, a second coupler, a bearing pedestal, a bearing, a worm gear, Hall elements, magnetic steel, a lead screw, a special-shaped nut, a screw, a linear bearing pedestal, a linear bearing, a sliding shaft, an adapting seat, a focusing lens assembly, a linear guide rail pair and a focusing base. The high-precision focusing mechanism adopts the worm and gear pair and the lead screw and nut pair to realize transmission, and the nut is used for directly driving the focusing lens assembly to move horizontally; the high-precision focusing mechanism is high in focusing precision and capable of linearly controlling the focusing amount.

Description

technical field [0001] The invention relates to a high-precision focusing mechanism applied to a space optical remote sensor, and belongs to the technical field of space remote sensing. Background technique [0002] Space optical remote sensors will experience complex mechanical environments such as shock, vibration, and overload, as well as space temperature changes during the rocket launch process. Due to environmental changes, the focal plane of the camera will be shifted to varying degrees. To ensure that the space remote sensor Imaging quality under complex environmental conditions requires correction of changes in the image plane of the space remote sensor, and adjusting the position of the mirror can just solve this problem. [0003] The existing technology closest to the present invention is a kind of high-precision light and small focusing mechanism applied to space optical remote sensors disclosed by Jia Xuezhi, Changchun Institute of Optics, Fine Mechanics and Phy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/04
CPCG02B7/04
Inventor 邢利娜金光张雷徐振李宋轩解鹏
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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