US Patent Issued to Microsoft Technology Licensing on Sept. 16 for "Waveguide combiner with separate in-coupling and out-coupling plates" (Finnish Inventor)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,808, issued on Sept. 16, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Waveguide combiner with separate in-coupling and out-coupling plates" was invented by Long Yang (Espoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A waveguide-based see-through combiner for mixed-reality head mounted display (HMD) devices uses input and output couplers comprising holographic optical elements (HOEs) to respectively in-couple light for virtual images from a display engine to the waveguide combiner and out-couple the virtual images to an HMD user's eyes. The in-coupling and out-coupling HOEs are respectively disposed on separate ...