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1. (WO2018140939) ELECTRO-HOLOGRAPHIC LIGHT FIELD GENERATORS AND DISPLAYS

Pub. No.:    WO/2018/140939    International Application No.:    PCT/US2018/015930
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Wed Jan 31 00:59:59 CET 2018
IPC: G03H 1/22
G03H 1/02
G02F 1/335
G02B 6/12
Applicants: THE CHARLES STARK DRAPER LABORATORY, INC.
Inventors: BYRNES, Steven J.
FAVALORA, Gregg E.
REGISTER, Joseph J.
FRANK, Ian W.
CALLAHAN, Dennis M.
MOEBIUS, Michael G.
LAINE, Juha-Pekka J.
Title: ELECTRO-HOLOGRAPHIC LIGHT FIELD GENERATORS AND DISPLAYS
Abstract:
An electro-holographic light field generator device is disclosed. The light field generator device has an optical substrate with a waveguide face and an exit face. One or more surface acoustic wave (SAW) optical modulator devices are included within each light field generator device. The SAW devices each include a light input, a waveguide, and a SAW transducer, all configured for guided mode confinement of input light within the waveguide. A leaky mode deflection of a portion of the waveguided light, or diffractive light, impinges upon the exit face. Multiple output optics at the exit face are configured for developing from each of the output optics a radiated exit light from the diffracted light for at least one of the waveguides. An RF controller is configured to control the SAW devices to develop the radiated exit light as a three-dimensional output light field with horizontal parallax and compatible with observer vertical motion.