ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,326, issued on Aug. 26, was assigned to DigiLens Inc. (Sunnyvale, Calif.).
"Grating structures for color waveguides" was invented by Jonathan David Waldern (Diablo, Calif.), Alastair John Grant (San Jose, Calif.) and Milan Momcilo Popovich (Leicester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a waveguide-based display comprising: a waveguide, a source of image modulated light projected over a field of view; an input coupler for coupling said light into a total internal reflection (TIR) path within the waveguide; and a grating structure for providing beam expansion of the TIR light in at least one direction and ...