ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,216,284, issued on Feb. 4, was assigned to LUMUS LTD. (Ness Ziona, Israel).

"Optical system with compact coupling from a projector into a waveguide" was invented by Ronen Chriki (Lod, Israel), Tsion Eisenfeld (Ashkelon, Israel) and Elad Sharlin (Mishmar David, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes a light-guide optical element (LOE) (10) having mutually-parallel first and second major external surfaces (11, 12) for guiding light by internal reflection, and a projector (100) that projects illumination corresponding to a collimated image from an aperture (101). The projector injects light in to the LOE via a coupl...