Patents Assigned to A B G S.r.l.
  • Liquid crystal eyeglasses
    Patent number: 5552841
    Abstract: The optical instrument comprises at least one lens (5) and application means (9) for applying the optical device. The lens is constituted at least in part by a liquid crystal device (LCD); power supply means of regulable voltage (11) are provided, to control the transparency of the lens.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: September 3, 1996
    Assignee: A B G S.r.l.
    Inventors: Massimo Gallorini, Bruno Angilella, Sandro Bocci