| 摘要 |
PROBLEM TO BE SOLVED: To easily apply a mark with superior visibility to a contact lens at low cost, and to prevent the lens strength caused by marking. SOLUTION: When the contact lens is marked by imprinting mark characters or patterns on an optical molding surface of a metal mold used to manufacture a molding resin mold for the contact lens and transferring the characters or the patterns via the resin mold, the engraved mark given to the metal mold is formed of a plurality of uneven parts so as to represent the characters or the patterns of the marked contact lens with fine irregularities. COPYRIGHT: (C)2009,JPO&INPIT |
