ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,628, issued on June 23, was assigned to 3M INNOVATIVE PROPERTIES COMPNAY (St. Paul, Minn.).
"Optical system" was invented by John D. Le (Woodbury, Minn.), Timothy L. Wong (West St. Paul, Minn.), Bing Hao (Woodbury, Minn.), Gregg A. Ambur (San Clemente, Calif.) and Susan L. Kent (Shorewood, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes an optical cavity defined by a reflective polarizer and a partial reflector. The optical cavity includes one or more optical components including a first optical lens spaced apart from the reflective polarizer. Each optical component within the optical cavity has a substantially unifor...