ALEXANDRIA, Va., June 6 -- United States Patent no. 12,282,181, issued on April 22, was assigned to FUJIFILM Corp. (Tokyo).
"Sensor" was invented by Hiroshi Sato (Minamiashigara, Japan), Katsumi Sasata (Minamiashigara, Japan) and Yukito Saitoh (Minamiashigara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sensor having a high SN ratio. The sensor includes a light source, a band pass filter, and a light-receiving element, in which the band pass filter includes two cholesteric liquid crystal layers and a discontinuous layer disposed between the two cholesteric liquid crystal layers, in the two cholesteric liquid crystal layers, helical twisted directions and helical pitches are the same, a...