Patents by Inventor Franz Lanzl

Franz Lanzl 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).

  • Device for measuring the angle of rotation or of the angular position of a rotating object
    Patent number: 5200797
    Abstract: An optical interferometer used for measuring the rotational angle or the anglular position of a rotating object, in which a path deflection is caused by means of the rotation of a reflector, the rotational movement of which is coupled with that of the object to be measured and thus is synchronous with its rotation. Furthermore, a laser beam is introduced into the interferometer. The path deflection caused by the rotation of the retro-reflector creates in the introduced laser beam varying interferences of defined wave length, which are proportional to the rotational angle of the reflector and of the object to be measured which drives it. Furthermore, the angular resolution is inversely proportional to the wave length of the laser beam.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: April 6, 1993
    Assignee: Deutsche Forschungsanstalt fur Luft- und Raumfahrt e.v.
    Inventors: Volker Tank, Helmut Dietl, Franz Lanzl