US Patent Issued to Alcon on June 24 for "Ophthalmic lens with phase-shift structure and method" (Texas Inventor)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,525, issued on June 24, was assigned to Alcon Inc. (Fribourg, Switzerland).

"Ophthalmic lens with phase-shift structure and method" was invented by Xin Hong (Fort Worth, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ophthalmic lens includes an optic with a first surface, a second surface, and a phase-shift structure having one or more phase-shift regions. A method for fabricating an ophthalmic lens includes designing an optic with a first surface, a second surface, and a phase-shift structure having one or more phase-shift regions. The phase-shift regions may be adapted to generate respective chromatic focal shifts such that an incident ra...