ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,205, issued on Aug. 12, was assigned to COOPERVISION INTERNATIONAL Ltd. (Fareham, Great Britain).
"Films having asymmetric grin optical elements for application to spectacles or other ophthalmic lenses" was invented by Paul Chamberlain (Livermore, Calif.), Sourav Saha (Pleasanton, Calif.) and Arthur Bradley (Bloomington, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A film (1), an ophthalmic lens including a film (1), spectacles comprising an ophthalmic lens including a film (1), and a method of manufacturing a film (1) are described. The film (1) has a base refractive index and includes at least one gradient index optical element (7a, 7b) hav...