ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,709, issued on Sept. 30, was assigned to HOYA LENS THAILAND LTD. (Pathumthani, Thailand).
"Eyeglass lens" was invented by Hua Qi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an eyeglass lens and its related techniques, the eyeglass lens including: a base region that causes a luminous flux that has entered from an object-side face to exit from an eyeball-side face, and to enter an eye and converge on a retina; and a plurality of defocus regions that are in contact with the base region and that are each configured such that a luminous flux that passes through at least a part of the corresponding defocus region ...