ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,601, issued on Jan. 27, was assigned to NTT Inc. (Tokyo).
"Optical element, image sensor and imaging device" was invented by Masashi Miyata (Musashino, Japan), Naru Nemoto (Musashino, Japan), Mitsumasa Nakajima (Musashino, Japan) and Toshikazu Hashimoto (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical element includes a transparent layer for covering a pixel including a photoelectric conversion element, and a plurality of columnar structures which are disposed on the transparent layer or in the transparent layer in a plane direction of the transparent layer and guide incident light to the corresponding photoelectric conver...