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

Brandon Hellman, Yuzuru Takashima

Research output: Contribution to journalArticle

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 étendue 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.

Original languageEnglish (US)
Pages (from-to)21477-21496
Number of pages20
JournalOptics Express
Volume27
Issue number15
DOIs
StatePublished - Jul 22 2019

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light modulation
light modulators
output
projection
illumination
sequencing
beam steering
pupils
degrees of freedom
pixels
gratings

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Angular and spatial light modulation by single digital micromirror device for multi-image output and nearly-doubled étendue. / Hellman, Brandon; Takashima, Yuzuru.

In: Optics Express, Vol. 27, No. 15, 22.07.2019, p. 21477-21496.

Research output: Contribution to journalArticle

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