Angular and spatial light modulation by single digital micromirror device for multi-image output and nearly-doubled étendue

Abstract

The "Angular Spatial Light Modulator" (ASLM) achieves simultaneous angular and spatial light modulation at a plane by combining Digital Micromirror Device (DMD) based programmable blazed grating beam steering and binary pattern sequencing. The ASLM system multiplies the number of effective output pixels of the DMD for increased spatial and/or angular degrees of freedom, and nearly-doubles the etendue output of the DMD. We implement multiple illumination and projection schemes to demonstrate ASLM-based extended FOV display, light-field projection, and multi-view display. We also implement time-multiplexed pupil segmented illumination to extend the pattern steering to two dimensions. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing AgreementUniversity of Arizona; Department of Defense (DoD) National Defense Science and Engineering Graduate (NDSEG); Air Force Research Laboratory (AFRL); ARCS FoundationOpen access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]