ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,641, issued on Dec. 23.
"Optical lens assembly and head-mounted electronic device" was invented by Ping-Yi Chen (Taichung, Taiwan), Po-Yu Chen (Taichung, Taiwan) and Fei-Hsin Tsai (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical lens assembly includes, in order from a visual side to an image source side: a first lens with positive refractive power; an optical element including, in order from the visual side to the image source side, an absorptive polarizer, a reflective polarizer and a first phase retarder; a second lens with positive refractive power; a partial-reflective-partial-transmissive element; a second phase retar...