Patents by Inventor Andre J. Vachet

Andre J. Vachet 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).

  • Composite ophthalmic lenses and their manufacture
    Patent number: 5343260
    Abstract: This invention is directed to the fabrication of composite lenses consisting of a transparent thermoset polymer exhibiting an index of refraction of at least 1.58 and a thin glass element of essentially constant thickness adhered to the front surface of the polymer without the use of an adhesive, the glass element having a thickness not exceeding 0.3 mm and the thermoset polymer being an aromatic epoxy resin.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: August 30, 1994
    Assignee: Corning Incorporated
    Inventors: David Henry, Andre J. Vachet, Jacques J. Vial
  • Composite ophthalmic lenses
    Patent number: 5323191
    Abstract: This invention is directed to the production of glass-plastic lenses consisting of a thin glass element bonded to a relatively thick transparent lens or lens preform made of poly(diethylene glycol)bis(allyl carbonate) by a transparent thermoset, polyurethane adhesive layer of optical quality having an elongation at rupture of at least 200% and an elastic modulus in the range of 0.13-10 MPa and at 100% elongation.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: June 21, 1994
    Assignee: Corning Incorporated
    Inventors: Eric Firtion, David Henry, Jean-Jacques Theron, Andre J. Vachet, Jacques J. Vial
  • Transparent laminated polarizing glasses
    Patent number: 4683153
    Abstract: This invention is concerned with a method for preparing transparent laminated polarizing glass articles consisting of a support of an inorganic or organic glass, a coating exhibiting polarizing properties disposed on one of the surfaces of the support, and an optically transparent layer adhered to the coating which protects the coating from humidity. The vital feature of the method comprises a first treatment by a gamma-aminopropyltrialkoxysilane and a second treatment by an epoxyalkyltrialkoxysilane which is designed to improve the adherence of the optically transparent layer to the polarizing coating.The invention is especially useful in the fabrication of eyeglass lenses.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: July 28, 1987
    Assignee: Corning Glass Works
    Inventors: Serge P. P. Goepfert, Serge A. M. Renault, Francoise M. M. Roger, Jean-Pierre Themont, Andre J. Vachet