ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,493,187, issued on Dec. 9, was assigned to Snap Inc. (Santa Monica, Calif.).
"Device for augmented reality or virtual reality display" was invented by Ciaran Phelan (Wallingford, Great Britain), Sophia Antonia Fox (Abingdon, Great Britain), Mohmed Salim Valera (Sutton Coldfield, Great Britain) and Arseny Alexeev (Abingdon, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical structure for an augmented reality display includes a waveguide and an input diffractive optical structure to receive light from a projector and couple the received light into the waveguide. An output diffractive optical structure, comprising first and second diffr...