Patents by Inventor Harald Kanduth

Harald Kanduth 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).

  • Optical strain sensor for the measurement of microdeformations of surfaces
    Patent number: 5757473
    Abstract: An optical strain sensor for measuring microdeformations of a surface with a resolution of at least 0.2 microns. The sensor comprises at least one camera for taking photographs of areas of the surface, the photographs being separated by a known fixed distance from one another before deformation has occurred. Templates are selected on the photographs taken before deformation, relocalized on photographs taken after deformation of the surface, and the deformation is derived from the computation of the difference in distances between the templates before and after deformation has occurred.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: May 26, 1998
    Assignee: Noranda, Inc.
    Inventors: Harald Kanduth, Denis Jacob, Christian Renaud, Michel Cantin, Alain Coulombe