ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,431, issued on April 29, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Optical member and image reading device" was invented by Hideki Matsui (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical member includes a lens array including lens bodies, and transmissive members. The transmissive members are made of a material having a uniform refractive index, and are disposed at positions nearer an object to be read or at positions farther from the object to be read than the corresponding lens bodies are disposed. The transmissive members have a columnar shape extending along the optical axes of the lens bodies, and allow light incident t...