Patents Assigned to Rotlex (1994) Ltd.
  • Patent number: 6270220
    Abstract: A multifocal lens having far and near vision zones is presented. The lens comprises a substrate in the form of a progressive addition lens and a modulation formed on a surface of the substrate. The substrate lens has far and near vision zones, selected in accordance with respective prescribed values of optical power required for the patient's eye at his distance and reading vision, and an intermediate transition region between the far and near vision zones. The modulation is of kind producing locally variable power addition such that the far and near vision zones of the multifocal lens are wider than the far and near vision zones of the substrate.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: August 7, 2001
    Assignee: Rotlex (1994) Ltd.
    Inventor: Eliezer Keren