ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,701, issued on June 30, was assigned to BEIJING UNICORN TECHNOLOGY Co. LTD. (Beijing).

"Optical apparatus and head-mounted device" was invented by Bing Xiao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of this specification provide an optical apparatus and a head-mounted device. The optical apparatus may include an image assembly, a first optical assembly, a second optical assembly, and a third optical assembly, the image assembly is configured to emit image light. The image assembly, the first optical assembly, the second optical assembly, and the third optical assembly are configured to enable that the image light is transmi...