Patents Assigned to Schott Technologies, Inc.
  • Thermal expansion measurements using Fabry-Perot etalons
    Patent number: 6860633
    Abstract: A method for determining the thermal expansion coefficient of a substance comprises, determining at each of two or more temperatures the absolute position of more than one resonant interference peaks of a Fabry-Perot etalon whose optical path is defined by said substance and calculating said coefficient from observed difference(s) in wavelength or frequency of said positions at said two or more temperatures.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: March 1, 2005
    Assignee: Schott Technologies, Inc.
    Inventors: Mark J. Davis, Joseph S. Hayden