US Patent Issued to META PLATFORMS TECHNOLOGIES on March 18 for "Polarization volume hologram combiner enabling wide population coverage, eye tracking accuracy, and glint generation" (Washington Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,153, issued on March 18, was assigned to META PLATFORMS TECHNOLOGIES LLC (Menlo Park, Calif.).

"Polarization volume hologram combiner enabling wide population coverage, eye tracking accuracy, and glint generation" was invented by Yun-Han Lee (Redmond, Wash.), Matthieu Charles Raoul Leibovici (Seattle), Chulwoo Oh (Sammamish, Wash.), Hyunmin Song (Redmond, Wash.) and Junren Wang (Kirkland, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments set forth eye tracking systems. In some embodiments, an eye tracking system includes a polarization volume hologram (PVH) combiner having a rolling k-vector design that provides relatively wi...