Patents by Inventor Herbert Walter Klaus Petermann

Herbert Walter Klaus Petermann 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).

  • Laser
    Patent number: 8831060
    Abstract: The invention relates to a laser (1) for emitting laser light in the visible spectral range. A rare earth doped anisotropic crystal (2) comprising a 5d-4f transition is arranged within a laser resonator (7, 8), and a pumping light source (3) pumps the crystal (2) for generating laser light in the visible spectral range by using the 5d-4f transition. The 5d-4f transition of the rare earth doped anisotropic crystal comprises an absorption band extending over several nm. Thus, pump light having a wavelength within a relatively broad wavelength range can be used. This reduces the requirements with respect to the wavelength accuracy of the pumping light source and, thus, more pumping light sources of an amount of produced pumping light sources can be used for assembling the laser, thereby reducing the amount of rejects.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: September 9, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Ulrich Weichmann, Matthias Alexander Wilhelm Fechner, Fabian Reichert, Herbert Walter Klaus Petermann, Gunter Huber
  • METHOD FOR INCREASING THE CONTENT OF CE3+ IN LASER MATERIALS
    Publication number: 20130248764
    Abstract: The invention relates to a method of making Ce3+ containing laser materials with a fast cooling rate.
    Type: Application
    Filed: December 2, 2011
    Publication date: September 26, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Ulrich Weichmann, Matthias Alexander Wilhelm Fechner, Fabian Reichert, Herbert Walter Klaus Petermann, Gunter Huber
  • LASER
    Publication number: 20130094533
    Abstract: The invention relates to a laser (1) for emitting laser light in the visible spectral range. A rare earth doped anisotropic crystal (2) comprising a 5d-4f transition is arranged within a laser resonator (7, 8), and a pumping light source (3) pumps the crystal (2) for generating laser light in the visible spectral range by using the 5d-4f transition. The 5d-4f transition of the rare earth doped anisotropic crystal comprises an absorption band extending over several nm. Thus, pump light having a wavelength within a relatively broad wavelength range can be used. This reduces the requirements with respect to the wavelength accuracy of the pumping light source and, thus, more pumping light sources of an amount of produced pumping light sources can be used for assembling the laser, thereby reducing the amount of rejects.
    Type: Application
    Filed: June 10, 2011
    Publication date: April 18, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Ulrich Weichmann, Matthias Alexander Wilhelm Fechner, Fabian Reichert, Herbert Walter Klaus Petermann, Gunter Huber