A large size MEMS scanning mirror for speckle reduction application

  • Fanya Li
  • , Jiahui He
  • , Wenjiang Shen
  • , Peng Zhou
  • , Huijun Yu
  • , Fei Ma

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Based on the micro electronic mechanical system (MEMS) processing, a large size 2-D scanning mirror driven by electromagnetic force was designed and implemented in this paper. Here we fabricated micromirror with the silicon wafer and electroplated soft Ni film on the backside of mirror. The no-coil structural micro-mirror prevented heat produced on the mirror effectively. The scanning resonant frequency for the mirror is 674Hz along slow axis, and 1870Hz along fast axis. Finally, the MEMS mirror was used in laser display system to reduce the laser speckle. With the 2-D scanning of the MEMS mirror, the speckle contrast could be reduced to 4.2%. We demonstrated that the image quality of a laser display system could be greatly improved with the MEMS mirror.

Original languageEnglish
Title of host publication2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages539-543
Number of pages5
ISBN (Electronic)9781509030590
DOIs
StatePublished - 25 Aug 2017
Event12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 - Los Angeles, United States
Duration: 9 Apr 201712 Apr 2017

Publication series

Name2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017

Conference

Conference12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
Country/TerritoryUnited States
CityLos Angeles
Period9/04/1712/04/17

Keywords

  • MEMS
  • electromagnetic force
  • optical scanning
  • speckle reduction

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