A Two-Stage Composite Large Stroke High Precision Fast Mirror

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

Active Publication Date: 2021-05-25
SHANTOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A Two-Stage Composite Large Stroke High Precision Fast Mirror
  • A Two-Stage Composite Large Stroke High Precision Fast Mirror
  • A Two-Stage Composite Large Stroke High Precision Fast 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 present invention discloses a two-stage composite large-stroke high-precision fast mirror. By setting the middle platform and the through hole of the middle platform, the piezoelectric driving part passes through the through hole of the middle platform, effectively reducing the overall size of the composite structure. At the same time, by adjusting the rigidity and flexibility of the flexible support, the piezoelectric drive and the voice coil drive can be relatively independent, reducing the coupling effect between the piezoelectric drive and the voice coil drive, so that the two can be better combined, and finally achieve a large angle , high precision, high response and high load-bearing pointing and stability.

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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Patent Type & Authority Patents(China)
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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