AR and lidar applications enabled by beam and image steering by MEMS SLM

Yuzuru Takashima; Xianyue Deng; Chin-I Tang; Eunmo Kang; Heejoo Choi; Jeff Ching-Wen Chan; Jeff Chen; Brandon Friedman; Ted Liang-Tai Lee; Parker Liu; Gregory Michael Nero; Tianyao Zhang; Yexin Pei

doi:10.1117/12.2656192

8 March 2023 AR and lidar applications enabled by beam and image steering by MEMS SLM

Yuzuru Takashima, Xianyue Deng, Chin-I Tang, Eunmo Kang, Heejoo Choi, Jeff Ching-Wen Chan, Jeff Chen, Brandon Friedman, Ted Liang-Tai Lee, Parker Liu, Gregory Michael Nero, Tianyao Zhang, Yexin Pei

Author Affiliations +

Proceedings Volume 12445, Practical Holography XXXVII: Displays, Materials, and Applications; 124450G (2023) https://doi.org/10.1117/12.2656192
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Micro Mechanical Electronics System based Spatial Light Modulators (MEMS-SLM) enables unique capability “Just in time photon delivery” or steering beam images to where and when they are needed. The beam and image steering solves challenges commonly found in both lidar and AR optical engines dominated by classical tradeoffs, such as image FOV, resolution and SLM size or form factor of optical engine. As a novel beam and image steering device, we transformed Texas Instruments Digital Micromirror Device (TI-DMD) into a diffractive beam and image steering device. TI-DMD is known as a binary spatial light modulator. Micromirros’ tilt re-directs light into on- or off-states. Without modifying TIDMD, but with employing a nano-second pulse illumination synchronized to the transitional movement of micromirrors between the of- and off-states turns DMD into a diffractive beam and image steering device.

Conference Presentation

Citation Download Citation

Yuzuru Takashima, Xianyue Deng, Chin-I Tang, Eunmo Kang, Heejoo Choi, Jeff Ching-Wen Chan, Jeff Chen, Brandon Friedman, Ted Liang-Tai Lee, Parker Liu, Gregory Michael Nero, Tianyao Zhang, and Yexin Pei "AR and lidar applications enabled by beam and image steering by MEMS SLM", Proc. SPIE 12445, Practical Holography XXXVII: Displays, Materials, and Applications, 124450G (8 March 2023); https://doi.org/10.1117/12.2656192

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