Angular and spatial light modulation by single digital micromirror device for display applications

Brandon Hellman, Ted Lee, Yuzuru Takashima

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

Abstract

A single Digital Micromirror Device with a single illumination source projects multiple, independent patterns into corresponding directions across a nearly-doubled angular extent by time multiplexing and by nanosecond illumination pulse synchronization for a binary patterned programmable blazed grating. The resulting "Angular Spatial Light Modulator" (ASLM) system nearly-doubles the étendue of a DMD-type SLM and creates a multiplication factor for the output pixel count and effective pixel density. We demonstrate an extended FOV display, a light-field projector, and a multi-view display which can be implemented into AR/VR systems. We present an implementation update using the DLP7000 DMD, increasing output pixel count by and effective pixel density orders-of-magnitude beyond traditional SLM systems while achieving an extended field-of-view and/or eye-box size due to the increased étendue.

Original languageEnglish (US)
Title of host publicationOptical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR)
EditorsBernard C. Kress, Christophe Peroz
PublisherSPIE
ISBN (Electronic)9781510633872
DOIs
StatePublished - Jan 1 2020
EventOptical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) 2020 - San Francisco, United States
Duration: Feb 2 2020 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11310
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) 2020
CountryUnited States
CitySan Francisco
Period2/2/20 → …

Keywords

  • AR
  • ASLM
  • Beam steering
  • Display
  • DMD
  • Micromirror
  • Pattern steering
  • VR

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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  • Cite this

    Hellman, B., Lee, T., & Takashima, Y. (2020). Angular and spatial light modulation by single digital micromirror device for display applications. In B. C. Kress, & C. Peroz (Eds.), Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) [113100W] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11310). SPIE. https://doi.org/10.1117/12.2545147