ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,050, issued on Feb. 17, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Optical films with infrared filters" was invented by Zhaohui Yang (North Oaks, Minn.), Raghunath Padiyath (Woodbury, Minn.), John A. Wheatley (Stillwater, Minn.), Ryan T. Fabick (Shoreview, Minn.) and Bryan V. Hunt (Nowthen, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical film includes a plurality of first layers disposed on a plurality of second layers. For each angle of incidence in an incident angle range of 0-50 degrees, an optical transmittance of each of the optical film and the plurality of second layers versus wavelength includes a band e...