ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,085, issued on Aug. 25, was assigned to Snap Inc. (Santa Monica, Calif.).
"Optical device" was invented by Roland Piper (London) and Arseny Alexeev (Drayton, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device for an augmented reality or virtual reality display. A first input diffractive optical element is arranged on a waveguide to receive light from a projector, couple a first portion of the light into the waveguide along a first path, and allow a second portion of the light to pass through. A second input diffractive optical element is arranged to receive the second portion of the light and couple a third portion of the...