Patents by Inventor Stefan Grotsch

Stefan Grotsch 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: 8809082
    Abstract: A method for producing luminous means proposes providing a carrier serving as a heat sink, said carrier comprising a planar chip mounting region. The planar chip mounting region is structured for the purpose of producing a first partial region and at least one second partial region. In this case, the first partial region has a solder-repellent property after structuring. Afterward, a solder is applied to the planar chip mounting region, such that said solder wets the at least one second partial region. At least one optoelectronic body is fixed into the at least one second partial region with the solder at the carrier. Finally, contact-connections are formed for the purpose of feeding electrical energy to the optoelectronic luminous body.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: August 19, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Klaus Müller
  • Patent number: 8733950
    Abstract: An LED projector includes a plurality of light sources; and an image generator which includes an arrangement of pixels, each pixel including at least one light source; wherein the LEDs are stacked epi-LEDs which include layers arranged above one another for different colors, or each pixel includes an emission surface and at least two LEDs are arranged adjacent one another in the emission surface.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: May 27, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Ewald Karl Michael Günther, Alexander Wilm, Siegfried Herrmann
  • Publication number: 20140098556
    Abstract: An optoelectronic semiconductor module includes a plurality of light-emitting areas, which emit light when in operation. At least two abutting lateral edges of at least one light-emitting area are arranged at an angle of more than 0 degrees and less than 90 degrees to each other. Further embodiments relate to a display having a plurality of such modules.
    Type: Application
    Filed: March 16, 2012
    Publication date: April 10, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Norwin von Malm, Georg Bogner, Joachim Reill, Stefan Grötsch
  • Patent number: 8684540
    Abstract: An optical projection apparatus includes a first light source, a second light source, and an imaging element, which is illuminated by the first light source and the second light source during operation. The light source includes a light-emitting diode chip that emits red light during operation. The second light source includes a first light-emitting diode chip, which emits green light during operation. A second light-emitting diode chip emits blue light during operation. The second light-emitting diode chip is arranged on the first light-emitting diode chip at a radiation exit surface of the first light-emitting diode chip. Electromagnetic radiation generated in the first light-emitting diode chip during operation passes through the second light-emitting diode chip.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: April 1, 2014
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Simon Kocur, Matthias Sabathil
  • Patent number: 8585246
    Abstract: An optoelectronic module for emitting monochromatic radiation in the visible wavelength range is specified. The module has a plurality of light emitting diode chips which generate UV radiation. The UV radiation is converted into light in the visible range, for example, into green light, by a wavelength converter. The coupling-out of light from the module is optimized by the use of two selectively reflecting and transmitting filters. This module can be used as a light source in a projection apparatus.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: November 19, 2013
    Assignee: OSRAM Optosemiconductors GmbH
    Inventors: Kirstin Petersen, Stefan Grötsch, Stephan Miller, Günter Spath, Norbert Linder, Dominik Eisert, Matthias Peter
  • Publication number: 20130207133
    Abstract: A light-emitting diode includes a carrier with a mounting face and includes a metallic basic body and at least two light-emitting diode chips affixed to the carrier at least indirectly at the mounting face, wherein an outer face of the metallic basic body includes the mounting face, the at least two light-emitting diode chips connect in parallel with one another, the at least two light-emitting diode chips are embedded in a reflective coating, the reflective coating covering the mounting face and side faces of the light-emitting diode chips, and the light-emitting diode chips protrude with their radiation exit surfaces out of the reflective coating, and the radiation exit surfaces face away from the carrier.
    Type: Application
    Filed: May 24, 2011
    Publication date: August 15, 2013
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Joachim Reill, Georg Bogner, Stefan Grötsch
  • Publication number: 20130200412
    Abstract: An optoelectronic semiconductor component includes a carrier and at least one optoelectronic semiconductor chip mounted on the carrier top. The semiconductor component includes at least one bonding wire, via which the semiconductor chip is electrically contacted, and at least one covering body mounted on a main radiation side and projects beyond the bonding wire. At least one reflective potting compound encloses the semiconductor chip laterally and extends at least as far as the main radiation side of the semiconductor chip. The bonding wire is covered completely by the reflective potting compound or completely by the reflective potting compound together with the covering body.
    Type: Application
    Filed: June 10, 2011
    Publication date: August 8, 2013
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Johann Ramchen, David Racz, Hans-Christoph Gallmeier, Stefan Grötsch, Simon Jerebic
  • Patent number: 8494337
    Abstract: A light guide is provided. The light guide has an uneven light input face and even side faces, which are arranged directly downstream of the light input face. Furthermore, an optoelectronic component with such a light guide is provided.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: July 23, 2013
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Stefan Grötsch
  • Patent number: 8487323
    Abstract: An LED housing having a housing cavity, a carrier element, LED chips, the LED housing being formed in such a way that it may connect a plurality of LED housings of identical construction and, by its shaping, is additionally mountable in various ways.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: July 16, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Steffen Köhler, Stefan Grötsch, Herbert Brunner, Rainer Huber
  • Patent number: 8439529
    Abstract: Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: May 14, 2013
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Moritz Engl, Stefan Grötsch, Markus Hofmann, Rainer Huber, Kurt-Jürgen Lang, Joachim Reill, Michael Sailer, Mario Wanninger
  • Patent number: 8373186
    Abstract: A radiation-emitting component includes a semiconductor layer stack having an active region that emits electromagnetic radiation, and at least one surface of the semiconductor layer stack or of an optical element that transmits the electromagnetic radiation wherein the surface has a normal vector, wherein on the at least one surface of the semiconductor layer stack or of the optical element through which the electromagnetic radiation passes, an antireflection layer is arranged such that, for a predetermined wavelength, it has a minimum reflection at a viewing angle relative to the normal vector of the surface at which an increase in a zonal luminous flux of the electromagnetic radiation has approximately a maximum.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: February 12, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Jan Marfeld, Jörg Erich Sorg, Moritz Engl, Steffen Köhler
  • Patent number: 8354682
    Abstract: A radiation-emitting component (10) having a layer stack (1) which is based on a semiconductor material and which has an active layer sequence (4) for generating electromagnetic radiation, and a filter element (2) which is arranged after the active layer sequence (4) in the irradiation direction (A) and by means of which a first radiation component is transmitted, and a second radiation component is reflected into the layer stack (1), wherein the second radiation component is subjected to a deflection process or an absorption and emission process, and the deflected or emitted radiation impinges on the filter element (2).
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: January 15, 2013
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Franz Eberhard, Stefan Grötsch, Norbert Linder, Jürgen Moosburger, Klaus Streubel, Ralph Wirth, Matthias Sabathil, Julius Muschaweck, Krister Bergenek
  • Patent number: 8299484
    Abstract: An optoelectronic semiconductor chip including a radiation passage area, where a contact metallization is applied to the radiation passage area, and a first reflective layer sequence is applied to that surface of the contact metallization which is remote from the radiation passage area, and an optoelectronic component that includes such a chip.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: October 30, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Norbert Linder
  • Publication number: 20120256161
    Abstract: A light-emitting diode is specified, comprising a first semiconductor body (10), which comprises at least one active region (11) which is electrically contact-connected, wherein electromagnetic radiation (110) in a first wavelength range is generated in the active region (11) during the operation of the light-emitting diode, a second semiconductor body (20), which is fixed to the first semiconductor body (10) at a top side (10a) of the first semiconductor body (10), wherein the second semiconductor body (20) has a re-emission region (21) with a multiple quantum well structure (213), and wherein electromagnetic radiation (110) in the first wavelength range is absorbed and electromagnetic radiation in a second wavelength range (220) is re-emitted in the re-emission region (21) during the operation of the light-emitting diode, and a connecting material (30) arranged between the first (10) and second semiconductor body (20), wherein the connecting material (30) mechanically connects the first (10) and the second
    Type: Application
    Filed: March 15, 2010
    Publication date: October 11, 2012
    Inventors: Matthias Sabathil, Simon Kocur, Stefan Grötsch
  • Publication number: 20120133908
    Abstract: An optical projection apparatus includes a first light source, a second light source, and an imaging element, which is illuminated by the first light source and the second light source during operation. The light source includes a light-emitting diode chip that emits red light during operation. The second light source includes a first light-emitting diode chip, which emits green light during operation. A second light-emitting diode chip emits blue light during operation. The second light-emitting diode chip is arranged on the first light-emitting diode chip at a radiation exit surface of the first light-emitting diode chip. Electromagnetic radiation generated in the first light-emitting diode chip during operation passes through the second light-emitting diode chip.
    Type: Application
    Filed: June 15, 2010
    Publication date: May 31, 2012
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Simon Kocur, Matthias Sabathil
  • Patent number: 8189123
    Abstract: A projection apparatus is specified, comprising a light modulator having a light receiving region with a cross-sectional area to be illuminated of the size AM and a maximum acceptance angle ? for incident light, and at least one light source by means of which, during its operation, a light cone is produced for illuminating said cross-sectional area of said light receiving region and which comprises a number N of LED chips having a maximum radiation angle ?. At least one of the LED chips has a radiation decoupling area of the size AD. The relation 0.7·(AM·sin2(?))/(AD·sin2(?)·n2)?N?1.3·(AM·sin2(?))/(AD·sin2(?)·n2) applies, where n is equal to 1 or to the refractive index of a coupling medium with which the LED chips are provided.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 29, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Gerhard Kuhn, Moritz Engl, Patrick Kromotis, Stefan Grötsch, Josef Hüttner, Mario Wanninger, Georg Bogner
  • Publication number: 20120107973
    Abstract: A method for producing luminous means proposes providing a carrier serving as a heat sink, said carrier comprising a planar chip mounting region. The planar chip mounting region is structured for the purpose of producing a first partial region and at least one second partial region. In this case, the first partial region has a solder-repellent property after structuring. Afterward, a solder is applied to the planar chip mounting region, such that said solder wets the at least one second partial region. At least one optoelectronic body is fixed into the at least one second partial region with the solder at the carrier. Finally, contact-connections are formed for the purpose of feeding electrical energy to the optoelectronic luminous body.
    Type: Application
    Filed: November 27, 2009
    Publication date: May 3, 2012
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Klaus Müller
  • Patent number: 8154031
    Abstract: A module comprising a regular arrangement of individual radiation-emitting semiconductor bodies (1) which are applied on a mounting area (6) of a carrier (2), wherein a wire connection is fitted between two adjacent radiation-emitting semiconductor bodies (1) on a top side, opposite to the mounting area (6), of the two radiation-emitting semiconductor bodies (1).
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: April 10, 2012
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Berthold Hahn, Stefan Illek, Wolfgang Schnabel
  • Patent number: 8096689
    Abstract: A motor-vehicle headlight is specified, having at least one light-emitting diode, and an apparatus for controllable manipulation of the beam path of the electromagnetic radiation emitted from the light-emitting diode. The described motor-vehicle headlight is distinguished inter alia by a particularly variable emission characteristic.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: January 17, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Moritz Engl, Stefan Grötsch, Markus Hofmann, Rainer Huber, Kurt Jürgen Lang, Mario Wanninger
  • Patent number: 8071990
    Abstract: An optoelectronic component emitting electromagnetic radiation, comprising a housing body which has a cavity, the cavity being fashioned trenchlike and in the cavity a plurality of semiconductor chips being arranged in a linear arrangement. Two neighboring semiconductor chips have a distance from one another which is less than or equal to one-and-a-half lateral edge lengths of the semiconductor chips and greater than or equal to 0 ?m. In addition, an illumination module comprising such a component is disclosed.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: December 6, 2011
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Georg Bogner, Moritz Engl, Stefan Grötsch, Patrick Joseph Kromotis