US Patent Issued to NINGBO SUNNY OPOTECH on July 28 for "Augmented reality display device" (Chinese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,535, issued on July 28, was assigned to NINGBO SUNNY OPOTECH Co. LTD. (Yuyao City, China).

"Augmented reality display device" was invented by Keqi Ma (Yuyao City, China), Yiqi Wang (Yuyao City, China) and Qinfeng Xu (Yuyao City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An augmented reality display device (100), comprising: a light engine (102) for emitting image light; and at least one layer of optical waveguide lens (101) comprising an in-coupling grating region (1012), an optical waveguide substrate (1011) and a turning and out-coupling grating region (1013), wherein the in-coupling grating region (1012) is disposed on a first optical ...