ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,477,851, issued on Nov. 18, was assigned to Magnolia White Corp. (Tokyo).
"Optical sensor" was invented by Kazuki Matsunaga (Tokyo), Shigesumi Araki (Tokyo) and Yasushi Tomioka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensor includes a light receiving part including a plurality of pixels and receiving light from a measuring object, the pixels being disposed in a matrix along a first direction and a second direction, and a louver film in which a first layer and a second layer are laminated, the first layer including a transmissive portion that transmits light of a predetermined wavelength band a light shielding portion that spiels...