ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,290, issued on July 14, was assigned to II-VI Photonics Inc. (Fuzhou, China).
"Variable optical attenuator with shutter type mems" was invented by Jiangming Lin (Fuzhou, China), Baozhong Zheng (Fuzhou, China), Yunbing Xu (Fuzhou, China) and Yang Li (Fuzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a variable optical attenuator (VOA) and a method of variably optically attenuating a light beam, a input lens receives an input light beam and an output lens outputs an output light beam. A mirror reflects the input light beam as the output light beam. The mirror or a moveable element is movable in a manner to block, pass, and/or reflect at ...