US Patent Issued to KOWA on Sept. 15 for "Optical design method and diffractive optical element" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,737,776, issued on Sept. 15, was assigned to KOWA COMPANY Ltd. (Aichi, Japan).

"Optical design method and diffractive optical element" was invented by Hideki Ina (Nagoya, Japan), Yasunari Oguchi (Nagoya, Japan) and Jun Maruyama (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical design method attempting facilitation of optical design of a configuration including a metalens. The optical design method includes a setting step, a first calculating step, a first identifying step, a second calculating step, a second identifying step, and a designing step. The first calculating step calculates first phase data indicating a relation of a p...