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
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  • 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

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

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[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Reference figure 1 ￣3 shows a two-stage composite large-stroke high-precision fast mirror in the embodiment of the present invention,

[0025] It includes a base 1, an intermediate platform 2, an output platform 3, a voice coil drive unit 4, a piezoelectric drive unit 5, a first flexible support 6, a second flexible support 7, and a third flexible support 8, wherein the intermediate platform 2 is provided 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 seat 502 and a second flexible hinge 503.

[0026] The two ends of the first flexible support 6 and the sec...

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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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