ALEXANDRIA, Va., June 2 -- United States Patent no. 12,645,078, issued on June 2, was assigned to Meta Platforms Technologies LLC (Menlo Park, Calif.).
"Scanning display device with a switchable grating" was invented by Renate Eva Klementine Landig (Kirkland, Wash.), Daniel Guenther Greif (Kirkland, Wash.), Sihui He (Sunnyvale, Calif.), Babak Amirsolaimani (Redmond, Wash.) and Jacques Gollier (Sammamish, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display device includes a scanning projector coupled to a lightguide having at least one of in-coupling or out-coupling gratings switchable. The switchable in-coupling grating lessens optical losses related to beam walkoff and out-coupling by the in-coup...