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Proceedings Paper

Angular and spatial light modulation by single digital micromirror device for display applications
Author(s): Brandon Hellman; Ted Lee; Yuzuru Takashima
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Paper 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.

Paper Details

Date Published: 19 February 2020
PDF: 6 pages
Proc. SPIE 11310, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR), 113100W (19 February 2020); doi: 10.1117/12.2545147
Show Author Affiliations
Brandon Hellman, James C. Wyant College of Optical Sciences, The Univ. of Arizona (United States)
Ted Lee, James C. Wyant College of Optical Sciences, The Univ. of Arizona (United States)
Yuzuru Takashima, James C. Wyant College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 11310:
Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR)
Bernard C. Kress; Christophe Peroz, Editor(s)

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