ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,430, issued on Nov. 18, was assigned to Valstybinis moksliniu tyrimu institutas Fiziniu ir technologijos mokslu centras (Vilnius, Lithuania).

"Detection device, system and method for determination of incidence angle of an optical beam" was invented by Julijanas Zeludevicius (Vilnius, Lithuania) and Giedrius Dubosas (Vilnius, Lithuania).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to the fields of optical technologies and telecommunication technologies, and is dedicated to determination of the direction of optical beam in free-space optical communication systems. The invention is based on the property of interference optical fi...