US Patent Issued to OPTINVENT on Nov. 3 for "Optical guide and corresponding manufacturing method" (French Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,728, issued on Nov. 3, was assigned to OPTINVENT (Rennes, France).

"Optical guide and corresponding manufacturing method" was invented by Julien Simon (Rennes, France), Khaled Sarayeddine (Rennes, France) and Yao Liu (Rennes, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical guide including a first piece made from a transparent material, the first piece including on the surface an array of extraction microstructures composed of a succession of extraction microstructures arranged for projecting to a finite distance an image injected into the optical guide. Each extraction microstructure has a prismatic shape with two faces, one face bei...