Patents Assigned to Wernicke & Co.
  • Process for the production of an edged opthalmic lens
    Patent number: 5545075
    Abstract: Disclosed is a process for the production of an edged ophthalmic lens wherein an ophthalmic lens which initially is finished on one side and not yet edged according to a prescribed disk shape, i.e. a so-called blank having only one finished effective surface, is produced and the so-called prescription surface is produced in another manufacturing step, if need be, including optimization of the critical thickness.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: August 13, 1996
    Assignee: Wernicke & Co.
    Inventor: Lutz Gottschald