ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,837, issued on April 21.

"Optical lens assembly and head-mounted electronic device" was invented by Ping-Yi Chen (Taichung City, Taiwan), Fei-Hsin Tsai (Taichung City, Taiwan) and Cong Ge (Guangdong Province, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical lens assembly includes a phase retarder; a partial-reflective-partial-transmissive element; and in order from a visual side to an image source side: an absorptive polarizer, a reflective polarizer, a first lens with refractive power, a second lens with refractive power, and a third lens with positive refractive power; wherein the phase retarder and the partial-reflective-partial-t...