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).
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Patent number: 8809082Abstract: 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: GrantFiled: November 27, 2009Date of Patent: August 19, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Klaus Müller
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Patent number: 8733950Abstract: 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: GrantFiled: September 9, 2009Date of Patent: May 27, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Ewald Karl Michael Günther, Alexander Wilm, Siegfried Herrmann
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Publication number: 20140098556Abstract: 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: ApplicationFiled: March 16, 2012Publication date: April 10, 2014Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Norwin von Malm, Georg Bogner, Joachim Reill, Stefan Grötsch
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Patent number: 8684540Abstract: 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: GrantFiled: June 15, 2010Date of Patent: April 1, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Simon Kocur, Matthias Sabathil
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Patent number: 8585246Abstract: 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: GrantFiled: January 26, 2009Date of Patent: November 19, 2013Assignee: OSRAM Optosemiconductors GmbHInventors: Kirstin Petersen, Stefan Grötsch, Stephan Miller, Günter Spath, Norbert Linder, Dominik Eisert, Matthias Peter
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Publication number: 20130207133Abstract: 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: ApplicationFiled: May 24, 2011Publication date: August 15, 2013Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Joachim Reill, Georg Bogner, Stefan Grötsch
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Publication number: 20130200412Abstract: 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: ApplicationFiled: June 10, 2011Publication date: August 8, 2013Applicant: OSRAM Opto Semiconductors GmbHInventors: Johann Ramchen, David Racz, Hans-Christoph Gallmeier, Stefan Grötsch, Simon Jerebic
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Patent number: 8494337Abstract: 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: GrantFiled: February 2, 2006Date of Patent: July 23, 2013Assignee: Osram Opto Semiconductors GmbHInventor: Stefan Grötsch
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Patent number: 8487323Abstract: 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: GrantFiled: August 6, 2008Date of Patent: July 16, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Steffen Köhler, Stefan Grötsch, Herbert Brunner, Rainer Huber
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Patent number: 8439529Abstract: 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: GrantFiled: October 20, 2005Date of Patent: May 14, 2013Assignee: Osram Opto Semiconductors GmbHInventors: Moritz Engl, Stefan Grötsch, Markus Hofmann, Rainer Huber, Kurt-Jürgen Lang, Joachim Reill, Michael Sailer, Mario Wanninger
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Patent number: 8373186Abstract: 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: GrantFiled: August 28, 2008Date of Patent: February 12, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Jan Marfeld, Jörg Erich Sorg, Moritz Engl, Steffen Köhler
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Patent number: 8354682Abstract: 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: GrantFiled: August 13, 2007Date of Patent: January 15, 2013Assignee: Osram Opto Semiconductors GmbHInventors: Franz Eberhard, Stefan Grötsch, Norbert Linder, Jürgen Moosburger, Klaus Streubel, Ralph Wirth, Matthias Sabathil, Julius Muschaweck, Krister Bergenek
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Patent number: 8299484Abstract: 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: GrantFiled: June 23, 2008Date of Patent: October 30, 2012Assignee: Osram Opto Semiconductors GmbHInventors: Stefan Grötsch, Norbert Linder
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Publication number: 20120256161Abstract: 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 secondType: ApplicationFiled: March 15, 2010Publication date: October 11, 2012Inventors: Matthias Sabathil, Simon Kocur, Stefan Grötsch
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Publication number: 20120133908Abstract: 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: ApplicationFiled: June 15, 2010Publication date: May 31, 2012Applicant: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Simon Kocur, Matthias Sabathil
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Patent number: 8189123Abstract: 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: GrantFiled: April 21, 2006Date of Patent: May 29, 2012Assignee: Osram Opto Semiconductors GmbHInventors: Gerhard Kuhn, Moritz Engl, Patrick Kromotis, Stefan Grötsch, Josef Hüttner, Mario Wanninger, Georg Bogner
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Publication number: 20120107973Abstract: 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: ApplicationFiled: November 27, 2009Publication date: May 3, 2012Applicant: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Klaus Müller
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Patent number: 8154031Abstract: 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: GrantFiled: February 10, 2006Date of Patent: April 10, 2012Assignee: OSRAM Opto Semiconductors GmbHInventors: Stefan Grötsch, Berthold Hahn, Stefan Illek, Wolfgang Schnabel
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Patent number: 8096689Abstract: 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: GrantFiled: October 25, 2007Date of Patent: January 17, 2012Assignee: Osram Opto Semiconductors GmbHInventors: Moritz Engl, Stefan Grötsch, Markus Hofmann, Rainer Huber, Kurt Jürgen Lang, Mario Wanninger
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Patent number: 8071990Abstract: 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: GrantFiled: July 21, 2005Date of Patent: December 6, 2011Assignee: OSRAM Opto Semiconductors GmbHInventors: Georg Bogner, Moritz Engl, Stefan Grötsch, Patrick Joseph Kromotis