ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,360, issued on Aug. 26, was assigned to Meta Platforms Technologies LLC (Menlo Park, Calif.).
"Enabling eye tracking in pancake lens optics" was invented by Yusufu Njoni Bamaxam Sulai (Snohomish, Wash.), Wai Sze Tiffany Lam (Lynnwood, Wash.), Fenglin Peng (Redmond, Wash.) and Jacques Gollier (Sammamish, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Ghost images can interfere with eye tracking in a system that uses folded optics, such as is an artificial-reality display. Optical elements, such as waveplates and/or polarizers, can be used to attenuate or eliminate light causing the ghost images."
The patent was filed on May 24, 2022, under App...