Two-dimensional multi-domain field-of-view expansion by MEMS SLM for near to eye display

Yexin Pei, Gregory Nero, Tianyao Zhang, Jeff Chan, Xianyue Deng, Ted Lee, Parker Liu, Yuzuru Takashima

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

Abstract

To facilitate Augmented Reality (AR) displays suitable for all-day-long usage, technologies are anticipated to realize compact form factor, low power consumption without compromising key aspects such as field-of-view (FOV), brightness, resolution, and uniformity. The balance among those requirements is crucial for creating a better AR experiences that are both comfortable and visually appealing for extended use. One of the challenges, FOV-resolution-form factor trade-off is addressed by using a MEMS based micro display panel, Digital Micromirror Device (DMD) in diffractive image steering mode. The DMD is paired with synchronized and short laser pulse illumination and a prism array expands FOV. This setup facilitates steering images into one of the multiple diffraction orders in a time sequential manner. The FOV is horizontally increased by fivefold. The vertical FOV is increased by twofold by incorporating illumination multiplexing. The resulting FOV reaches 30 degrees horizontally and 12 degrees vertically, all while sustaining a resolution of 1.86 arc minutes per pixel. This method increases FOV without sacrificing resolution nor increasing the form factor of micro display panel.

Original languageEnglish (US)
Title of host publicationOptical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V
EditorsNaamah Argaman, Hong Hua, Daniel K. Nikolov
PublisherSPIE
ISBN (Electronic)9781510670860
DOIs
StatePublished - 2024
EventOptical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V 2024 - San Francisco, United States
Duration: Jan 29 2024 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12913
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V 2024
Country/TerritoryUnited States
CitySan Francisco
Period1/29/24 → …

Keywords

  • Augmented reality
  • Digital Micromirror Device
  • field-of-view
  • image steering
  • near-eye displays
  • prism array

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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