Patents Assigned to ESSILOR ITALIA SOCIETA PER AZIONI
  • Patent number: 11474381
    Abstract: The invention relates to an ophthalmic article (1) in particular for sunglasses, comprising: first layer (9) made of photochromic cellulose triacetate having a rear face (9R) to be oriented toward an eye (7) of a user and a front face (9F) to be oriented toward the field of vision (13) of the user, and a second layer (10) made of polyamide having a rear face (10R) to be oriented toward an eye (7) of a user and a front face (10F) to be oriented toward the field of vision (13) of the user, the first layer (9) being disposed proximate to the field of vision (13) of the user with regard to the second layer (10) being disposed proximate to the eye (7) of the user.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: October 18, 2022
    Assignee: ESSILOR ITALIA SOCIETA PER AZIONI
    Inventor: Matteo Lagasi