ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,762, issued on Sept. 16, was assigned to SHENZHEN HYPERNANO OPTICS TECHNOLOGY Co. LTD. (Shenzhen, China).
"Tunable optical filter device" was invented by Bin Guo (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an adjustable optical filter device. The device comprises a first glass thin film provided with a first mirror and a second glass thin film provided with a second mirror. The peripheries of the surfaces of the first glass thin film and the second glass thin film that have a mirror are bonded to each other by means of a bond to form a cavity between the mirrors. The first glass thin film or the second glass thin fi...