ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,269, issued on Sept. 8, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Optical ferrules" was invented by Xiaoguang Sun (Woodbury, Minn.) and Michael A. Haase (St. Paul, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical ferrule for transmitting and propagating light having a predetermined wavelength includes a polymeric ferrule body having a fiber alignment feature for receiving an optical fiber, a redirecting side for redirecting light, and an output side window for exiting light therethrough. A multilayer anti-reflection film is disposed on the output side window and includes at least two first layers including titan...