A Miniature Lens Scanner with an Electrothermally-Actuated Micro-Stage

Liang Zhou, Xiaoyang Zhang, Yulung Sung, Wei Chuan Shih, Huikai Xie

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

2 Citations (Scopus)

Abstract

This paper reports the design and characterization of a MEMS lens scanner based on a novel electrothermally-Actuated MEMS stage and a planoconvex polymer lens. Cu and W are used in the electrothermal bimorph actuators, replacing previously employed Al and SiO2 to improve the stiffness of the MEMS stage. At the same time, the lens is made of PDMS, greatly reducing the weight compared to glass lenses. The MEMS lens scanner can generate a large vertical movement of over 100μm at only 5 V, while still keeping its piston resonant frequency as high as 293 Hz. The footprint of this MEMS lens scanner is only 3.8× 3.8 mm2.

Original languageEnglish
Title of host publicationInternational Conference on Optical MEMS and Nanophotonics, OMN 2018 - Proceedings
PublisherIEEE Computer Society
ISBN (Print)9781509063727
DOIs
Publication statusPublished - 4 Sept 2018
Externally publishedYes
Event23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018 - Lausanne, Switzerland
Duration: 29 Jul 20182 Aug 2018

Publication series

NameInternational Conference on Optical MEMS and Nanophotonics
Volume2018-July
ISSN (Print)2160-5033
ISSN (Electronic)2160-5041

Conference

Conference23rd International Conference on Optical MEMS and Nanophotonics, OMN 2018
Country/TerritorySwitzerland
CityLausanne
Period29/07/182/08/18

Keywords

  • Cu/W bimorph
  • MEMS stage
  • electrothermal actuation
  • lens scanner
  • polymer lens

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