A high-precision large-aperture fast mirror system
A reflective mirror and large-diameter technology, applied in the direction of instruments, installation, optics, etc., can solve the problems of small maximum stroke, poor versatility, difficult engineering practice, etc., and achieve small system error, compact structure layout, and fast response speed Effect
Active Publication Date: 2022-03-29
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology
This system has high precision, but due to the limitations of the structure itself, the PSD module exists as a single component, and is not designed as a whole with the fast reflector. It also needs auxiliary light sources and other equipment to work. The overall structure is large and difficult to directly applied to engineering practice
[0007] Chinese Academy of Sciences Changchun Optics, Fine Mechanics and Physics Research Institute Xu Xinxing, Gao Yunguo et al. "Vehicle Large Aperture Rigid Support Fast Mirror" (Optical Precision Engineering, 2014 No. 1), designed a large aperture fast mirror system for the working environment of the vehicle platform , the system uses a ball hinge structure as a support, which has good load-carrying performance; and the rotation center is fixed during operation, so the system has high precision, but due to the limitation of the hinge structure, the maximum stroke of the structure is very small, which can only be used under specific working conditions. bad sex
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[0029] The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.
[0030] The invention provides a large-diameter, high-precision fast mirror system based on a rigid support structure. The system uses a rigid universal hinge structure with a fixed center of rotation as the support structure; The symmetrically distributed voice coil motor realizes the two-dimensional scanning of the fast mirror; the angle feedback is achieved through the laser emission module and PSD to achieve high-precision control.
[0031] Such as figure 1 Shown is an external view of the fast mirror system of the present invention.
[0032] Such as figure 2 As shown, the fast mirror system of the present invention includes: a mirror assembly 1 , a universal hinge support assembly 2 , a voice coil motor 3 , a control electronic cabin assembly 4 , a housing 5 , and a laser emitting module assembly 6 .
[0033] The connection relatio...
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The invention discloses a high-precision large-diameter fast mirror system, which includes: a mirror assembly, a universal hinge support assembly, a voice coil motor, a control electronic cabin assembly, a casing, and a laser emitting module assembly; the universal The hinge support assembly and the control electronic cabin assembly are respectively fixedly connected to the housing, and the mirror assembly is fixedly connected to the universal hinge support assembly; the control electronic cabin assembly includes PSD, and the The laser emitting module assembly can emit laser signals and reflect them onto the PSD. The present invention adopts a rigid universal hinge structure with a fixed center of rotation as a supporting structure; two groups of four orthogonally symmetrically distributed voice coil motors are used to realize the two-dimensional scanning of the fast mirror; feedback to achieve high-precision control.
Description
technical field [0001] The invention relates to the technical field of precision optical mechanical design, in particular to a high-precision large-diameter fast mirror system. Background technique [0002] Fast mirror systems are widely used in precision tracking, beam control and other fields. With the rapid development of laser detection technology, it is urgent to develop fast mirror systems with large aperture and high precision. [0003] Wang Baoxu from the General Engineering Research Institute of China Academy of Engineering Physics; Zhu Mingzhi and others invented a fast mirror system based on flexible support (application number 201310557481.1). This invention is a system with high structural reliability and wide control bandwidth, but The caliber and stroke will be greatly limited; in addition, due to the flexible support structure, the rotation center of the mirror will shift during the working process, resulting in uncertain errors. [0004] Chinese Academy of ...
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IPC IPC(8): G02B7/183G02B7/198G02B7/182
CPCG02B7/1821G02B7/183
Inventor 吴妙章陶坤宇董延涛都金丹田永明高天宇
Owner SHANGHAI RADIO EQUIP RES INST