US Patent Issued to Northwestern University on April 29 for "High-throughput 3D printing of customized aspheric imaging lenses" (Illinois Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,909, issued on April 29, was assigned to Northwestern University (Evanston, Ill.).

"High-throughput 3D printing of customized aspheric imaging lenses" was invented by Xiangfan Chen (Evanston, Ill.), Wenzhong Liu (Evanston, Ill.), Hao F. Zhang (Evanston, Ill.) and Cheng Sun (Evanston, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In an aspect, a method for additive manufacture of a three-dimensional object based on a computational model comprises steps of: grayscale photohardening a precursor material to form a portion of the object; and applying a hardened meniscus coating at a feature of the object; wherein the three-dimensional object is form...