Patents by Inventor Frederic Moisan

Frederic Moisan 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).

  • Method for optimizing contrast in an image of a sample
    Patent number: 4991970
    Abstract: This invention concerns a method for optimizing contrast in an image of a sample.This sample (5) comprises a whole number of zones having different reflection or transmittance factors. These zones are illuminated by a light source (7) and the image is obtained at the output of an optical system (4) to be analyzed by a sensor (10) supplying on the outputs recording signals of this image. Contrast optimization consists of determining the characteristics of an optimal fiber to be inserted between the source (7) and the sample (5) to be controlled.Application in particular for the control of in-production integrated circuits.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: February 12, 1991
    Assignee: Commissariat A l'Energie Atomique
    Inventors: Michel Darboux, Gilles Grand, Frederic Moisan