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Voice coil motor and fast reflector

A voice coil motor and mirror technology, applied in electrical components, electromechanical devices, electric components, etc., can solve problems such as incomplete technical problems, achieve high working bandwidth, small magnetic field air gap, and ensure the effect of output efficiency

Active Publication Date: 2019-12-06
北京瑞控信科技股份有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0006] In addition, such as: Chinese patent application numbers: CN2013105438658, CN2014100277404, CN2014100713846, CN201610844344X, CN2018113780531, CN2018206526118 and Japanese patent publication numbers: JPH09201030, US patent publication number: US97466 field, but the above-mentioned prior art does not completely solve the technical problems existing in the above-mentioned prior art

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  • Voice coil motor and fast reflector
  • Voice coil motor and fast reflector
  • Voice coil motor and fast reflector

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0035] figure 1 is a perspective view of a specific embodiment of the fast mirror 100 of the present invention, figure 2 yes figure 1 A top view of the fast mirror 100. Such as figure 1 As shown, the fast mirror 100 includes a mirror (not shown), a voice coil motor 110 , a voice coil motor fixing frame and a component base 101 . The figure schematically shows that there are four voice coil motors 110 and correspondi...

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Abstract

The invention provides a voice coil motor and a fast reflector including the voice coil motor. The voice coil motor 110 comprises a fixed part and a movable part. The fixed part comprises magnets 104and an E-shaped soft magnetic material 105. The movable part comprises a coil 102. The magnets 104 are respectively fixed on the inner sides of the two ends of the E-shaped soft magnetic material 105,A coil is wound on the soft magnetic material and passes through the middle legs of the E-shaped soft magnetic material 105, and the middle legs are separated by a certain air gap. The two opposite magnets 104 of the fixed part have opposite magnetic polarities. The coil, the magnets and the soft magnetic material of the voice coil motor are all designed by the spherical surface, and the center of the spherical surface is consistent with the center of rotation of the fast reflector so that a larger rotation range can be obtained and the rotation angle range in two directions of 15 degrees ormore can be realized. Moreover, the air gap of the magnetic field is small so as to ensure the output efficiency of the voice coil motor and realize higher working bandwidth.

Description

technical field [0001] The invention relates to the technical field of photoelectric scanning and tracking, in particular to a voice coil motor and a fast reflector. Background technique [0002] The fast reflector is a component that works between the light source or receiver and the target to adjust and stabilize the visual axis of the optical system or the beam pointing. By using a voice coil motor to precisely control the deflection direction of the reflector, the beam deflection angle can be precisely controlled. It is used to realize the rapid adjustment of the "deflection-tilt" azimuth angle of the mirror, and can be used in applications such as line-of-sight stabilization or scan compensation in the optoelectronic field. Due to its advantages of compact structure, fast response, high working bandwidth and high pointing accuracy, it is widely used in astronomical telescopes, adaptive optics, image motion compensation, free space optical communication, precision tracki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/035H02K1/06G02B26/10
CPCG02B26/10H02K1/06H02K41/0354
Inventor 孔凡辉肖立亮
Owner 北京瑞控信科技股份有限公司
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