US Patent Issued to Lumus on April 21 for "Method of fabrication of compound light-guide optical elements" (Israeli Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,796, issued on April 21, was assigned to Lumus LTD. (Ness Ziona, Israel).

"Method of fabrication of compound light-guide optical elements" was invented by Shimon Grabarnik (Rehovot, Israel) and Tsion Eisenfeld (Ashkelon, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating a compound light-guide optical element (LOE) is provided. A bonded stack of a plurality of LOE precursors and a plurality of transparent spacer plates alternating therebetween is bonded to a first optical block having a plurality of mutually parallel obliquely angled internal surfaces. The block is joined to the stack such that first plurality of partiall...