Andrew R Sparks

US Patent:

20200301240, Sep 24, 2020

Filed:

Mar 19, 2019

Appl. No.:

16/358529

Inventors:

Michael Ziemkiewicz - Lakewood CO, US
Michael Howard Anderson - Lyons CO, US
Tyler Adam Dunn - North Reading MA, US
David Edward Fish - Littleton CO, US
Scott Dennis Rommel - Lakewood CO, US
Andrew William Sparks - Arlington MA, US
Scott Robert Davis - Denver CO, US

International Classification:

G02F 1/295

Abstract:

A Liquid Crystal Waveguide (LCW) system can provide sub-aperture incoupling or outcoupling of light having an input wavelength and input beamsize defining an aperture characteristic of the system. A Liquid Crystal Waveguide (LCW) can include a generally planar LCW core to receive light via a light input zone for communication toward a light output zone. Sub-aperture interfacial light couplers can be planarly arranged in or parallel to the planar LCW core in the light input zone or the light output zone. Sub-aperture interfacial light couplers can include teeth, prisms, or facets, a photonic crystal metasurface, or a geometric-phased holograph (GPH)). Overall LCW thickness can be reduced, which can be helpful in space-limited applications or for reducing material costs.