US Patent Issued to 3M Innovative Properties on Aug. 12 for "Optical film and polarizing beam splitter" (Minnesota, Washington Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,191, issued on Aug. 12, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Optical film and polarizing beam splitter" was invented by David J. W. Aastuen (Shoreview, Minn.), Zhisheng Yun (Sammamish, Wash.), Timothy J. Nevitt (Red Wing, Minn.), John D. Le (Woodbury, Minn.), Susan L. Kent (Shorewood, Minn.), Gilles J. Benoit (Minneapolis) and David T. Yust (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical film and a polarizing beam splitter (PBS) including the optical film is described. The optical film includes a first optical stack disposed on, and spaced apart by one or more spacer layers from, a second optica...