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).

  • Publication number: 20090129079
    Abstract: A light-emitting module is specified, comprising at least two light sources disposed on a common carrier. At least one of said light sources includes at least two LED chips. Each light source (1) of the module is followed downstream by an optic body of an optical element, and the optic bodies are suitable for guiding electromagnetic radiation to a light exit surface of the optical element. An optical projection apparatus comprising such a light-emitting module is also specified.
    Type: Application
    Filed: August 31, 2006
    Publication date: May 21, 2009
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Stefan Grotsch, Sergey Kudaev, Bryce Anton Moffat, Peter Schreiber
  • Publication number: 20090109699
    Abstract: A light source, such as for a projection system, having a plurality of semiconductor chips and at least two different, electromagnetic-radiation-emitting chip types with different emission spectra, each semiconductor chip having a chip coupling-out area through which radiation is coupled out. Furthermore, the light source has a plurality of primary optical elements, each semiconductor chip being assigned a primary optical element, which in each case has a light input and a light output and reduces the divergence of at least part of the radiation emitted by the semiconductor chip during the operation thereof. The semiconductor chips with the primary optical elements are arranged in at least two groups that are spatially separate from one another, with the result that the groups emit separate light cones during operation of the semiconductor chips. The separate light cones of the groups are superposed by means of a secondary optical arrangement to form a common light cone.
    Type: Application
    Filed: December 23, 2008
    Publication date: April 30, 2009
    Inventors: Stefan GROTSCH, Georg BOGNER
  • Publication number: 20090103297
    Abstract: In an LED array comprising a plurality of radiation-emitting semiconductor chips each of which has a radiation outcoupling surface, the radiation emitted by the semiconductor chips being outcoupled substantially through said radiation outcoupling surface , and a cover body that is transparent to the emitted radiation, the transparent cover body comprises, on a surface facing toward the radiation outcoupling surfaces of the semiconductor chips, one or more conductive traces made of a conductive material that is transparent to the emitted radiation, and the semiconductor chips each comprise, on the radiation outcoupling surface, at least one electrical contact that is connected to the conductive trace or to at least one of the plurality of conductive traces. At least one luminescence conversion material is contained in the transparent cover body and/or applied in a layer to the cover body and/or the semiconductor chips.
    Type: Application
    Filed: February 6, 2006
    Publication date: April 23, 2009
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Georg Bogner, Moritz Engl, Stefan Grotsch, Patrick Kromotis, Jorg Erich Sorg
  • Patent number: 7510890
    Abstract: A method for producing a luminescence diode chip, in which provision is made of a semiconductor body is provided having an epitaxially grown semiconductor layer sequence having an active zone and a radiation coupling-out area, the active zone emitting an electromagnetic radiation during operation of the luminescence diode, a large part of said electromagnetic radiation being coupled out via the radiation coupling-out area. A luminescence conversion material is arranged downstream of the radiation coupling-out area in an emission direction of the semiconductor body. A radiation-transmissive covering body having a first main area, a second main area opposite to the first main area, and also side areas connecting the first and second main areas. The covering body is applied to the radiation coupling-out area of the semiconductor layer sequence in such a way that the first main area faces the radiation coupling-out area.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: March 31, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Hubert Ott, Stefan Grötsch, Herbert Brunner
  • Patent number: 7501660
    Abstract: A housing is specified for an electronic component having at least two connecting parts (4a, 4b), which are partially in contact with the housing. The conductivity of at least subareas of the housing are set in a defined manner and current paths through the housing are formed between the connecting parts. The housing thus has a defined resistance (2), which is connected in parallel with an electronic component (1), and provides ESD protection for the component (1).
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 10, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Josef Schmid, Stefan Grötsch, Michael Hiegler, Moritz Engl, Georg Bogner, Karlheinz Arndt, Markus Schneider
  • Publication number: 20090001490
    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: Application
    Filed: July 21, 2005
    Publication date: January 1, 2009
    Inventors: Georg Bogner, Moritz Engl, Stefan Grotsch, Patrick Kromotis
  • Publication number: 20080315227
    Abstract: A light-emitting diode arrangement is disclosed, comprising at least one light-emitting diode (LED) chip with a radiation decoupling surface through which a large portion of the electromagnetic radiation generated in the LED chip exits in a main direction of emission; a housing laterally surrounding the LED chip; and a reflective optic disposed after the radiation decoupling surface in the main direction of emission. The LED arrangement is particularly well suited for use in devices such as camera-equipped cell phones, digital cameras or video cameras.
    Type: Application
    Filed: May 18, 2005
    Publication date: December 25, 2008
    Inventors: Georg Bogner, Stefan Grotsch, Gunter Waitl, Mario Wanninger
  • Patent number: 7467885
    Abstract: A light source, such as for a projection system, having a plurality of semiconductor chips and at least two different, electromagnetic-radiation-emitting chip types with different emission spectra, each semiconductor chip having a chip coupling-out area through which radiation is coupled out. Furthermore, the light source has a plurality of primary optical elements, each semiconductor chip being assigned a primary optical element, which in each case has a light input and a light output and reduces the divergence of at least part of the radiation emitted by the semiconductor chip during the operation thereof. The semiconductor chips with the primary optical elements are arranged in at least two groups that are spatially separate from one another, with the result that the groups emit separate light cones during operation of the semiconductor chips. The separate light cones of the groups are superposed by means of a secondary optical arrangement to form a common light cone.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: December 23, 2008
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Georg Bogner
  • Publication number: 20080303038
    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: Application
    Filed: February 10, 2006
    Publication date: December 11, 2008
    Inventors: Stefan Grotsch, Berthold Hahn, Stefan Illek, Wolfgang Schnabel
  • Publication number: 20080266884
    Abstract: The invention relates to a cooling device for cooling a semiconductor component (1), in particular an optoelectronic semiconductor component, comprising at least partially first and second layers and a heal dissipation device (4), wherein said first and second layers are flatly placed on top of each other and one layer is provided, at least partially, with a structure for receiving said heat dissipation device (4).
    Type: Application
    Filed: December 1, 2005
    Publication date: October 30, 2008
    Inventors: Georg Bogner, Herbert Brunner, Stefan Grotsch, Guy Lefranc
  • Patent number: 7414269
    Abstract: The invention proposes a housing for at least two radiation-emitting components, particularly LEDs, comprising a system carrier (1) and a reflector arrangement (2) disposed on said system carrier (1), the reflector arrangement comprising a number of reflectors each of which serves to receive at least one radiation-emitting component and which are fastened to one another by means of a holding device (4).
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: August 19, 2008
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Stefan Grötsch, Patrick Kromotis
  • Publication number: 20080192153
    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 a 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: Application
    Filed: April 21, 2006
    Publication date: August 14, 2008
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Gerhard Kuhn, Moritz Engl, Patrick Kromotis, Stefan Grotsch, Josef Huttner, Mario Wanninger, Georg Bogner
  • Publication number: 20080151547
    Abstract: A light-emitting module is specified that comprises a light source, a carrier for said light source, and an optical element, wherein the optical element comprises dowel pins that engage in corresponding recesses in the carrier. The light-emitting module is particularly well suited for use in optical projection apparatuses and in motor vehicle projection lamps.
    Type: Application
    Filed: September 11, 2007
    Publication date: June 26, 2008
    Inventors: Stefan Grotsch, Moritz Engl, Florin Oswald, Michael Sailer, Alexander Wilm
  • Publication number: 20080116551
    Abstract: A method for producing a laser diode component having an electrically insulating housing basic body (1) and electrical connecting conductors (5a, 5b), which are led out from the housing basic body and are accessible from outside the housing basic body (1). The housing basic body (1) is produced from a material which is transmissive to a laser radiation to be emitted by the laser diode component, and comprises a chip mounting region (3). A beam axis (100) of the laser diode component runs through the housing basic body (1). A housing that can be produced in this way and laser diode component having a housing of this type are also disclosed.
    Type: Application
    Filed: May 26, 2004
    Publication date: May 22, 2008
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Christian Ferstl, Stefan Grotsch, Markus Zeiler
  • Publication number: 20080094851
    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: Application
    Filed: October 25, 2007
    Publication date: April 24, 2008
    Inventors: Moritz Engl, Stefan Grotsch, Markus Hofmann, Rainer Huber, Kurt Lang, Mario Wanninger
  • Publication number: 20080035944
    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: Application
    Filed: August 13, 2007
    Publication date: February 14, 2008
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Franz Eberhard, Stefan Grotsch, Norbert Linder, Jurgen Moosburger, Klaus Streubel, Ralph Wirth, Matthias Sabathil, Julius Muschaweck, Krister Bergenek
  • Publication number: 20070069227
    Abstract: The invention relates to a housing for at least two radiation-emitting components, especially LEDs, comprising a system carrier (1) and a reflector arrangement (2) arranged on said system carrier (1). Said reflector arrangement comprises a number of reflectors that are respectively used to receive at least one radiation-emitting component and are fixed together by means of a holding device (4).
    Type: Application
    Filed: May 28, 2004
    Publication date: March 29, 2007
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Stefan Grötsch, Patrick Kromotis
  • Publication number: 20070008734
    Abstract: A headlight having a multitude of headlight elements, which each have at least one semiconductor chip which emits electromagnetic radiation; a primary optics element, which reduces the divergence of the light which is incident through the light input; and at least one headlight element output, which emits a part of the headlight light from the headlight element. At least some of the headlight element outputs are arranged in at least two groups in such a way that the arrangement of at least one of the groups and/or at least overall arrangement of headlight element outputs of multiple groups corresponds essentially to a desired emission characteristic of the headlight, in that, in particular, it has a shape which corresponds essentially to the cross-sectional shape of a desired headlight beam, wherein the semiconductor chips which belong to the headlight element outputs of one group can each be operated independently of other semiconductor chips.
    Type: Application
    Filed: March 24, 2004
    Publication date: January 11, 2007
    Inventors: Georg Bogner, Stefan Grotsch, Joachim Reill
  • Patent number: 7115962
    Abstract: In a process for producing a ceramic housing (1), first of all a ceramic base body (4) comprising a ceramic base (2) and side parts (3) is produced. Then, a metal frame (7) is placed onto the ceramic base body (4) and a window (11) is soldered onto a side opening (6). After a photoactive semiconductor chip has been introduced into the ceramic base body (4), the ceramic housing (1) is closed off using a metal cover (12).
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: October 3, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Stefan Grötsch
  • Publication number: 20060076572
    Abstract: A light-emitting diode arrangement having at least one light-emitting diode chip (1), each light-emitting diode chip (1) being assigned at least one optical element (4). In addition, the light-emitting diode arrangement has at least one heat-conducting element (13) which is suitable to carry away the heat generated by the light-emitting diode chip, and at least one cooling apparatus which is suitable to carry heat away from the heat-conducting element. The light-emitting diode arrangement is particularly well suited, for example, to use in motor vehicle headlamps.
    Type: Application
    Filed: September 29, 2005
    Publication date: April 13, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Rainer Huber, Joachim Reill, Kurt-Jurgen Lang, Moritz Engl, Markus Hofmann, Mario Wanninger, Michael Sailer, Stefan Grotsch