ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,835, issued on May 19, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Optical receiver" was invented by Kazuaki Mii (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, there is provided an optical receiver including: a beam reducer including an incident lens condensing first collimated light having a first diameter to a focal point, an emitting lens receiving light emitted from the incident lens and emitting second collimated light having a second diameter smaller than the first diameter, and a main body provided between the incident lens and the emitting lens, the main body having the focal p...