US Patent Issued to HOYA Optical Labs of America on May 13 for "Direct surfacing optimized lens blank" (Minnesota Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,603, issued on May 13, was assigned to HOYA Optical Labs of America Inc. (Lewisville, Texas).

"Direct surfacing optimized lens blank" was invented by Jose A. Orozco Rodriguez (Saint Paul, Minn.) and David Olund (Stanchfield, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semi-finished ophthalmic lens for formation of a plurality of different finished ophthalmic lenses requiring reduced amounts of lens material to be removed for formation of the finished ophthalmic lenses and reduced rates of departure of a surfacing tool and methods of making same. Lens material is reduced by providing first and second surfaces that have different optical po...