Patents by Inventor Gerard Le Paih

Gerard Le Paih has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Head-mounted visor with variable transmission
    Patent number: 5640711
    Abstract: A head-mounted visor with variable transmission has at least two zones with different values of absorption of light. Should the visor be mounted on a pilot's helmet, an upper zone designed for looking at the exterior of the aircraft absorbs more light than a lower zone designed for looking at the dashboard instruments. The application is directed to helmet equipment for tasks comprising swift passages from a very bright space to a darkened space.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: June 24, 1997
    Assignee: Sextant Avionique
    Inventors: Yves Lefort, Gerard Le Paih
  • Holographic filter for protection from radiation, notably laser radiation
    Patent number: 5539544
    Abstract: A holographic filter for protection from radiation, notably laser radiation. At least one support is covered with at least two holograms. Each hologram is constituted by a stack of strata. The holograms are fixed to each other by an optical bonder associated with a selective absorbent material.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: July 23, 1996
    Assignee: Sextant Avionique
    Inventors: Gerard Le Paih, Jean B. Migozzi