ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,208,570, issued on Jan. 28, was assigned to Alcon Inc. (Fribourg, Switzerland).
"3D printing of an intraocular lens having smooth, curved surfaces" was invented by Brian Craig Cox (Arlington, Texas), Fernando Enrique Ortiz (Fort Worth, Texas) and Austin Xavier Rodeheaver (Arlington, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A continuous additive fabrication system comprises a bath of photopolymer resin and a light source assembly having a light source and a motorized variable aperture. The light source assembly is operable to generate a focus point in the bath of photopolymer resin, the shape of the focus point at a curing plane within the ba...