US Patent Issued to Valve on March 3 for "Compact optics for head-mounted display systems" (Washington Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,322, issued on March 3, was assigned to Valve Corp. (Bellevue, Wash.).

"Compact optics for head-mounted display systems" was invented by Joshua Mark Hudman (Issaquah, Wash.) and Kameron Wade Rausch (Sammamish, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system of a head-mounted display (HMD) system that includes a diffractive optical element coupled to a display, for example, via lamination or a suitable optically clear adhesive. The optical system may include a reflective polarizer and a quarter-wave plate that, together with the diffractive optical element, form a catadioptric or "pancake" configuration that focuses light from ...