ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,711, issued on Nov. 18, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Optical system" was invented by Andrew J. Ouderkirk (Kirkland, Wash.), Zhisheng Yun (Sammamish, Wash.), Timothy L. Wong (St. Paul, Minn.), Erin A. McDowell (Afton, Minn.), Jo A. Etter (Kirkland, Wash.) and Robert M. Jennings (Shoreview, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system including at least a first lens, a partial reflector and a reflective polarizer is described. The optical system has an optical axis such that a light ray propagating along the optical axis passes through the first lens the partial reflector and the reflective...