Patents Represented by Law Firm Stroock & Stroock & Lavon
  • Eyeglass lens
    Patent number: 5335026
    Abstract: A lens for eyeglasses which corrects an astigmatism includes a first refracting surface and a second refracting surface. Each refracting surface has an optical center and a periphery. At least one of the refracting surfaces is divided into a first portion and a second portion in which the first portion has a variation in curvature of the lens which is greater than the variation of curvature of the second portion.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: August 2, 1994
    Assignee: Seiko Epson Corporation
    Inventors: Kazutoshi Kato, Toshiharu Katada, Osamu Yokoyama