Angular and spatial light modulation by single digital micromirror device for beam and pattern steering

Brandon Hellman; Joshua Rodriguez; Chuan Luo; Heejoo Choi; Yuzuru Takashima

doi:10.1117/12.2546355

28 February 2020 Angular and spatial light modulation by single digital micromirror device for beam and pattern steering

Brandon Hellman, Joshua Rodriguez, Chuan Luo, Heejoo Choi, Yuzuru Takashima

Author Affiliations +

Proceedings Volume 11294, Emerging Digital Micromirror Device Based Systems and Applications XII; 112940C (2020) https://doi.org/10.1117/12.2546355
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

The “Angular Spatial Light Modulator” (ASLM) utilizes digital micromirror device (DMD) as a binary patterned programmable blazed grating to increase number of output pixels of a DMD by merging geometric and diffractive optical capabilities of the DMD. We demonstrate series of capabilities of the ASLM for beam and pattern steering. In particular, a single-chip beam steering lidar, an extended FOV display, a light-field projector, and a multi-view display which can be implemented into AR/VR systems. We also present our metrology results of wavefront distortion of DMD while micro mirrors are transitioning over between on and off states.

Conference Presentation

Citation Download Citation

Brandon Hellman, Joshua Rodriguez, Chuan Luo, Heejoo Choi, and Yuzuru Takashima "Angular and spatial light modulation by single digital micromirror device for beam and pattern steering", Proc. SPIE 11294, Emerging Digital Micromirror Device Based Systems and Applications XII, 112940C (28 February 2020); https://doi.org/10.1117/12.2546355

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