A digital neutral density filter for image capture

Gary D. Sharp; Dave Coleman

doi:10.1117/12.2577643

5 March 2021 A digital neutral density filter for image capture

Gary D. Sharp, Dave Coleman

Proceedings Volume 11707, Emerging Liquid Crystal Technologies XVI; 1170707 (2021) https://doi.org/10.1117/12.2577643
Event: SPIE OPTO, 2021, Online Only

Abstract

An architecture for a wide angle-of-view (AOV) liquid-crystal based digital-neutral-density (DND) filter is proposed and analyzed. The DND filter is a unique arrangement of liquid crystal display materials which shows promise for use at the input of ultra-wide-angle image capture lenses. Relevant platforms include drones, action video cameras, DSLRs, and broadcast/cinema cameras.

Conference Presentation

Citation Download Citation

Gary D. Sharp and Dave Coleman "A digital neutral density filter for image capture", Proc. SPIE 11707, Emerging Liquid Crystal Technologies XVI, 1170707 (5 March 2021); https://doi.org/10.1117/12.2577643

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