US Patent Issued to Teknologian tutkimuskeskus VTT on May 6 for "Split refracting or split reflecting light received by cellulose-based film comprising surface pattern" (Finnish Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,379, issued on May 6, was assigned to Teknologian tutkimuskeskus VTT Oy (Espoo, Finland).

"Split refracting or split reflecting light received by cellulose-based film comprising surface pattern" was invented by Tapio Makela (Espoo, Finland) and Ari Hokkanen (Espoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided detecting modification of optically active cellulose-based film. A method comprises split refracting or split reflecting light received by a surface pattern of an optically active cellulose-based film into a plurality of output light patterns, wherein an output light pattern is determined from the plurality of output...