ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,508, issued on May 13, was assigned to Snap Inc. (Santa Monica, Calif.).

"Imaging waveguide" was invented by Arseny Alexeev (Abingdon, Great Britain), Cheng Shi (Oxford, Great Britain), Christian William Olavi Sol (London), Parashara Panduranga (Banbury, Great Britain) and Venkata Karthik Nagareddy (Swindon, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical waveguide combiner includes an optical waveguide substrate and an optical input region. The optical input region includes an optical input diffractive grating integrated in, or disposed on, the optical waveguide substrate. An optical output region includes an optical output ...