Patents by Inventor Ulrich Roellig

Ulrich Roellig 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).

  • Patent number: 7801190
    Abstract: A laser radiation source which is scalable with respect to output is designed in such a way that laser diode elements can be arranged on a carrier so as to be stacked equidistantly and with low stress at a low manufacturing cost. The laser radiation source comprises a vertical stack of laser diode elements contacted on both sides via electrically conductive substrate layers, and at least one multi-layer carrier comprising a first and a second metallic layer which are separated by at least one electrically insulating layer of nonmetallic material. At least one of the metallic layers is divided into metallic layer regions which are arranged adjacent to one another and at a distance from one another. Oppositely polarized substrate layers of adjacent laser diode elements are arranged on common layer regions of a metallic layer. Collimating lenses serve to collimate the radiation emitted by the laser diode elements.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: September 21, 2010
    Assignee: JENOPTIK Laser GmbH
    Inventors: Dirk Lorenzen, Petra Hennig, Matthias Schroeder, Ulrich Roellig
  • Publication number: 20090016398
    Abstract: A laser radiation source which is scalable with respect to output is designed in such a way that laser diode elements can be arranged on a carrier so as to be stacked equidistantly and with low stress at a low manufacturing cost. The laser radiation source comprises a vertical stack of laser diode elements contacted on both sides via electrically conductive substrate layers, and at least one multi-layer carrier comprising a first and a second metallic layer which are separated by at least one electrically insulating layer of nonmetallic material. At least one of the metallic layers is divided into metallic layer regions which are arranged adjacent to one another and at a distance from one another. Oppositely polarized substrate layers of adjacent laser diode elements are arranged on common layer regions of a metallic layer. Collimating lenses serve to collimate the radiation emitted by the laser diode elements.
    Type: Application
    Filed: January 16, 2007
    Publication date: January 15, 2009
    Applicant: JENOPTIK LASERDIODE GMBH
    Inventors: Dirk Lorenzen, Petra Hennig, Matthias Schroeder, Ulrich Roellig
  • Patent number: 6754244
    Abstract: A diode laser component is disclosed for providing a passive cooling heatsink with improved heat spreading such that a diode laser component which uses a heatsink of this type is constructed so as to be thermally symmetrical and compact and can be used for multiple purposes, particularly as regards beam control and electrical circuitry. The heatsink, which carries a diode laser bar on a mounting surface, contains an area for heat spreading which is enclosed by material and surrounds all edges of the mounting surface. Recesses for fastening of elements are arranged in the heatsink outside of the area for heat spreading.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: June 22, 2004
    Assignee: Jenoptik Laserdiode GmbH
    Inventors: Ulrich Roellig, Dirk Lorenzen
  • Publication number: 20020136250
    Abstract: A diode laser component is disclosed for providing a passive cooling heatsink with improved heat spreading such that a diode laser component which uses a heatsink of this type is constructed so as to be thermally symmetrical and compact and can be used for multiple purposes, particularly as regards beam control and electrical circuitry. The heatsink, which carries a diode laser bar on a mounting surface, contains an area for heat spreading which is enclosed by material and surrounds all edges of the mounting surface. Recesses for fastening of elements are arranged in the heatsink outside of the area for heat spreading.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 26, 2002
    Applicant: JENOPTIK Laserdiode GmbH
    Inventors: Ulrich Roellig, Dirk Lorenzen
  • Patent number: 6337873
    Abstract: An optical arrangement is provided for balancing the beam of one or more high-power diode lasers (HP-DL) arranged one above another. The beam, which is known to diverge very differently in the direction of the pn junction and perpendicular to the pn junction of the emitters of an HP-DL arranged in a row is imaged at a point with high power density and high beam quality the arrangement. Present for this purpose are optical devices which spread out the radiation in a mutually offset fashion in the direction of the pn junction while the radiation is superimposed perpendicular to the pn junction.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: January 8, 2002
    Assignee: Jenoptik Aktiengesellschaft
    Inventors: Rolf Goering, Peter Schreiber, Stefan Heinemann, Ulrich Roellig, Michael Nickel