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Two-stage composite large-stroke high-precision rapid reflection mirror

A fast mirror, large stroke technology, applied in optical components, optics, instruments, etc., can solve problems such as difficult to break through structure and drive, and achieve the effect of reducing overall size and high response

Active Publication Date: 2019-08-06
SHANTOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of information technology, national defense equipment and aerospace engineering technology, the development of large-angle, high-precision, high-response and high-load fast mirrors poses new requirements and challenges to existing technologies. Electrically driven fast mirrors correspond to two types of applications: large travel and small load and high frequency response and small travel respectively. It is difficult to break through the limitations of its own structure and drive while having both large travel and high-precision performance. It has become the current development of fast mirrors. one of the key issues

Method used

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  • Two-stage composite large-stroke high-precision rapid reflection mirror
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  • Two-stage composite large-stroke high-precision rapid reflection mirror

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Embodiment Construction

[0023] 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 conjunction with the accompanying drawings.

[0024] refer to figure 1 A kind of two-stage composite large-stroke high-precision fast reflector of the embodiment of the present invention shown in ~3,

[0025] It includes a base 1, an intermediate platform 2, an output platform 3, a voice coil driving part 4, a piezoelectric driving part 5, a first flexible support 6, a second flexible support 7, and a third flexible support 8, wherein the intermediate platform 2 is set There is a through hole 201 , the voice coil driving part 4 includes a voice coil motor 401 , a flexible translation pair 402 and a first flexible hinge 403 , and the piezoelectric driving part 5 includes a piezoelectric driver 501 , a piezoelectric mounting base 502 and a second flexible hinge 503 .

[0026] Both ends of the first flexible su...

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Abstract

The embodiment of the invention discloses a two-stage composite large-stroke high-precision rapid reflection mirror. Through arranging a middle platform and a through hole of the middle platform, a piezoelectric driving portion passes through the through hole of the middle platform and an overall size of a composite structure is effectively reduced. Simultaneously, through adjusting and controlling a rigid-flexible characteristic of flexible support, piezoelectric driving and voice coil driving are relatively independent, and a coupling effect between the piezoelectric driving and the voice coil driving is reduced so that the two can be better combined. And finally, large angle, high precision, high response and high load bearing pointing and stability are achieved.

Description

technical field [0001] The invention relates to the field of fast control reflectors, in particular to a two-stage composite large-stroke high-precision fast reflector. Background technique [0002] The fast reflector is an advanced opto-mechanical device that is located between the emitting end and the receiving end of the light source and realizes the adjustment of the beam direction by quickly and accurately controlling the deflection angle of the reflective mirror surface. It is the key to the new generation of information technology and aerospace engineering. One of the devices, it is widely used in astronomical telescopes, adaptive optics, boresight stabilization, laser communication, laser processing and other fields requiring precise pointing, tracking and stabilization. [0003] With the rapid development of information technology, national defense equipment and aerospace engineering technology, the development of large-angle, high-precision, high-response and high-...

Claims

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Application Information

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IPC IPC(8): G02B26/08
CPCG02B26/0816
Inventor 魏华贤牛小东王莉毛忠发邓勇
Owner SHANTOU UNIV
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