Patents by Inventor Paul Guering

Paul Guering 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).

  • Patent number: 5146282
    Abstract: A method for evaluating the optical quality of a glazing using a projection technique in which the shadow of glazing (3) projected with a localized light source (2, 15) is analyzed by a camera (6) assisted by a computer. The illumination at a point (M) of screen (4) is compared to the illumination at same point (M) in the absence of glazing (3) and the measurement is weighted by the optical and geometric parameters of corresponding point (m) of glazing (3). The resolving power in one direction is adjustable by the modification of the dimension of the source in this direction. Application is to the inspection of windshields on a production line.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: September 8, 1992
    Assignee: Saint-Gobain Vitrage International
    Inventors: Paul Guering, Patrick Gayout, Philippe Vizet