Patents Assigned to Fraunhofer Gesellschaft fur Foerderung der angewandten Forschung e.V.
  • METHOD AND ARRANGEMENT FOR INCREASING THE BEAM QUALITY AND STABILITY OF AN OPTICAL RESONATOR
    Publication number: 20240146013
    Abstract: A method and arrangement for compensation of thermally induced depolarising effects in an optical resonator employ a retroreflective prism effecting multiple instances of total internal reflection as one end mirror of the resonator. The retroreflective prism has a first roof edge face pair made of two perpendicular roof edge faces and at least one second face with total internal reflection or a second roof edge face pair. Laser radiation entering parallel to the optical axis of the resonator undergoes total internal reflection through an angle ? at the second face or the second roof edge face pair before it undergoes total internal reflection at the first roof edge face pair and emerges again from the retroreflective prism in a manner parallel to the optical axis of the resonator following another instance of total internal reflection at the second face or the second roof edge face pair.
    Type: Application
    Filed: March 3, 2022
    Publication date: May 2, 2024
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Karlsruher Institut für Technologie
    Inventors: Marc EICHHORN, Christelle KIELECK
  • Computer icon for general status and functions of a microscope system on a portion of a display panel or microscope display
    Patent number: D496371
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: September 21, 2004
    Assignees: Leica Microsystems Wetzlar GmbH, Fraunhofer Gesellschaft fur Foerderung der angewandten Forschung e.V.
    Inventors: Katja Peter, Frank Toennissen, Christian Knoll, Dietmar Kempf, Hendrik Kuijs