ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,436,400, issued on Oct. 7, was assigned to Lumus Ltd. (Ness Ziona, Israel).

"Optical system" was invented by Yochay Danziger (Kfar Vradim, Israel), Shimon Grabarnik (Rehovot, Israel), Ronen Chriki (Lod, Israel), Eitan Ronen (Rehovot, Israel) and Elad Sharlin (Mishmar David, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system employs a waveguide including a first set of partially-reflecting surfaces ("facets") for progressively redirecting image illumination propagating from a coupling-in region towards a second region, and a second set of facets in the second region for progressively coupling-out the redirected image illumination towa...