ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,898, issued on Jan. 20, was assigned to Snap Inc. (Santa Monica, Calif.).
"Waveguide for an augmented reality or virtual reality display" was invented by Tom Vidar Michalsen (Reading, Great Britain) and Mohmed Salim Valera (Sutton Coldfield, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A waveguide (1) for use in an augmented reality or virtual reality display, comprising: an output diffractive element comprising a plurality of optical structures (22, 28, 26) in a photonic crystal; a first major surface of the waveguide, and a second major surface of the waveguide, the first major surface separated in a direction perpendicular to a pl...