AR and Lidar Applications Enabled by Beam and Image Steering by MEMS SLM

Yuzuru Takashima, Xianyue Deng, Chin I. Tang, Eunmo Kang, Heejoo Choi, Jeff Ching Wen Chan, Jeff Chen, Brandon Friedman, Ted Liang Tai Lee, Parker Liu, Gregory Michael Nero, Tianyao Zhang, Yexin Pei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Micro Mechanical Electronics System based Spatial Light Modulators (MEMS-SLM) enables unique capability “Just in time photon delivery” or steering beam images to where and when they are needed. The beam and image steering solves challenges commonly found in both lidar and AR optical engines dominated by classical tradeoffs, such as image FOV, resolution and SLM size or form factor of optical engine. As a novel beam and image steering device, we transformed Texas Instruments Digital Micromirror Device (TI-DMD) into a diffractive beam and image steering device. TI-DMD is known as a binary spatial light modulator. Micromirros' tilt re-directs light into on- or off-states. Without modifying TI-DMD, but with employing a nano-second pulse illumination synchronized to the transitional movement of micromirrors between the of- and off-states turns DMD into a diffractive beam and image steering device.

Original languageEnglish (US)
Title of host publicationPractical Holography XXXVII
Subtitle of host publicationDisplays, Materials, and Applications
EditorsPierre-Alexandre J. Blanche, Seung-Hyun Lee
PublisherSPIE
ISBN (Electronic)9781510659957
DOIs
StatePublished - 2023
EventPractical Holography XXXVII: Displays, Materials, and Applications 2023 - San Francisco, United States
Duration: Jan 31 2023Feb 1 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12445

Conference

ConferencePractical Holography XXXVII: Displays, Materials, and Applications 2023
Country/TerritoryUnited States
CitySan Francisco
Period1/31/232/1/23

Keywords

  • AR display
  • DMD
  • Digital Micromirror Device
  • MEMS
  • MEMS phased array
  • beam steering
  • image steering
  • lidar

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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