US Patent Issued to HOYA LENS THAILAND on Aug. 4 for "Method of producing spectacle lens" (Japanese Inventor)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,792, issued on Aug. 4, was assigned to HOYA LENS THAILAND LTD. (Pathumthani, Thailand).

"Method of producing spectacle lens" was invented by Takumi Nomura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a method of producing a spectacle lens, wherein the spectacle lens has a water-repellent layer, and the method including film-forming the water-repellent layer by a heat deposition method and heating a plurality of deposition sources according to different temperature profiles in the film-forming by the heat deposition method, wherein, in the plurality of deposition sources, at least one deposition source contains a water-repel...