Patents by Inventor Patrick Kromotis
Patrick Kromotis 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: 9564566Abstract: An optoelectronic component includes a housing having an electrically conductive first contact section, and an optoelectronic semiconductor chip arranged on the first contact section, wherein the optoelectronic semiconductor chip and the first contact section are at least partly covered by a first layer including a silicone, a second layer including SiO2 is arranged at a surface of the first layer, the second layer has a thickness of 10 nm to 1 ?m, and a third layer is arranged above the second layer.Type: GrantFiled: August 5, 2014Date of Patent: February 7, 2017Assignee: OSRAM Opto Semiconductors GmbHInventors: Patrick Kromotis, Emanuel Hofmann, Ludwig Peyker, Torsten Baade, Simone Kiener, Kristin Grosse
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Publication number: 20160190410Abstract: An optoelectronic component includes a housing having an electrically conductive first contact section, and an optoelectronic semiconductor chip arranged on the first contact section, wherein the optoelectronic semiconductor chip and the first contact section are at least partly covered by a first layer including a silicone, a second layer including SiO2 is arranged at a surface of the first layer, the second layer has a thickness of 10 nm to 1 ?m, and a third layer is arranged above the second layer.Type: ApplicationFiled: August 5, 2014Publication date: June 30, 2016Inventors: Patrick Kromotis, Emanuel Hofmann, Ludwig Peyker, Torsten Baade, Simone Kiener, Kristin Grosse
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Patent number: 8314441Abstract: An optoelectronic component having a basic housing or frame and at least one semiconductor chip, specifically a radiation-emitting or -receiving semiconductor chip, in a cavity of the basic housing. In order to increase the efficiency of the optoelectronic component, reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound filled at least partly into the cavity is provided, the material and the quantity of the filling compound being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas of the filling compound serve as reflector.Type: GrantFiled: April 11, 2011Date of Patent: November 20, 2012Assignee: OSRAM Opto Semiconductors GmbHInventors: Marcus Ruhnau, Bert Braune, Patrick Kromotis, Georg Bogner
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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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Patent number: 8042964Abstract: An illumination device for backlighting an image reproduction device containing light valves, the illumination device including a plurality of luminous spots arranged in grid format on a flat thermally conductive carrier. Each luminous spot having a plurality of light emitting diodes electrically insulated from one another, and a submount exhibiting good thermal conductivity and being connected to the carrier.Type: GrantFiled: September 1, 2003Date of Patent: October 25, 2011Assignees: Siemens Aktiengesellschaft, OSRAM Opto Semiconductors GmbHInventors: Georg Bogner, Patrick Kromotis, Ralf Mayer, Heinrich Noll
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Publication number: 20110205146Abstract: A display device, in particular a screen unit (6) for a screen (4), is provided which has a backlighting unit (8) for backlighting the screen (4), a polarisation filter (10), which is arranged in an emission direction of the backlighting unit (8) and which at least partially covers the backlighting unit (8), a liquid crystal layer (14), which is arranged on the side of the polarisation filter (10) remote from the backlighting unit (8), and a filter arrangement (16), which comprises at least one colour filter and which is arranged on the side of the liquid crystal layer (14) remote from the backlighting unit (8), wherein the backlighting unit (8) comprises a light-emitting diode (22) which emits blue light, and wherein at least two different phosphors are arranged downstream of the blue-light-emitting light-emitting diode (22), which phosphors absorb the blue light from the light-emitting diode (22) and re-emit light of mutually different colours, which mixes with the blue light from the light-emitting diode (Type: ApplicationFiled: January 26, 2009Publication date: August 25, 2011Applicant: OSRAM Opto Semiconductors GmbHInventors: Matthias Winter, Patrick Kromotis
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Publication number: 20110180822Abstract: An optoelectronic component having a basic housing or frame and at least one semiconductor chip, specifically a radiation-emitting or—receiving semiconductor chip, in a cavity of the basic housing. In order to increase the efficiency of the optoelectronic component, reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound filled at least partly into the cavity is provided, the material and the quantity of the filling compound being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas of the filling compound serve as reflector.Type: ApplicationFiled: April 11, 2011Publication date: July 28, 2011Inventors: Marcus RUHNAU, Bert BRAUNE, Patrick KROMOTIS, Georg BOGNER
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Patent number: 7948046Abstract: An optoelectronic component having a basic housing or frame and at least one semiconductor chip, specifically a radiation-emitting or-receiving semiconductor chip, in a cavity of the basic housing. In order to increase the efficiency of the optoelectronic component, reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound filled at least partly into the cavity is provided, the material and the quantity of the filling compound being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas of the filling compound serve as reflector.Type: GrantFiled: September 10, 2010Date of Patent: May 24, 2011Assignee: OSRAM Opto Semiconductor GmbHInventors: Marcus Ruhnau, Bert Braune, Patrick Kromotis, Georg Bogner
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Publication number: 20100327307Abstract: An optoelectronic component having a basic housing or frame and at least one semiconductor chip, specifically a radiation-emitting or-receiving semiconductor chip, in a cavity of the basic housing. In order to increase the efficiency of the optoelectronic component, reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound filled at least partly into the cavity is provided, the material and the quantity of the filling compound being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas of the filling compound serve as reflector.Type: ApplicationFiled: September 10, 2010Publication date: December 30, 2010Inventors: Marcus Ruhnau, Bert Braune, Patrick Kromotis, Georg Bogner
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Patent number: 7795633Abstract: An optoelectronic component having a basic housing or frame and at least one semiconductor chip, specifically a radiation-emitting or-receiving semiconductor chip, in a cavity of the basic housing. In order to increase the efficiency of the optoelectronic component, reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound filled at least partly into the cavity is provided, the material and the quantity of the filling compound being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas of the filling compound serve as reflector.Type: GrantFiled: September 30, 2008Date of Patent: September 14, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Marcus Ruhnau, Bert Braune, Patrick Kromotis, Georg Bogner
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Patent number: 7726835Abstract: 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: GrantFiled: February 6, 2006Date of Patent: June 1, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Georg Bogner, Moritz Engl, Stefan Grötsch, Patrick Kromotis, Jorg Erich Sorg
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Patent number: 7586190Abstract: An optoelectronic component (1) having a semiconductor arrangement (4) which emits and/or receives electromagnetic radiation and which is arranged on a carrier (22) which is thermally conductively connected to a heat sink (12). External electrical connections (9) are connected to the semiconductor arrangement (4), where the external electrical connections (9) are arranged in electrically insulated fashion on the heat sink (12) at a distance from the carrier (22). This results in an optimized component in terms of the dissipation of heat loss and the radiation of light and also in terms of making electrical contact and the packing density in modules.Type: GrantFiled: September 29, 2003Date of Patent: September 8, 2009Assignee: Osram Opto Semiconductors GmbHInventors: Georg Bogner, Patrick Kromotis, Ralf Mayer, Heinrich Noll, Matthias Winter
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Publication number: 20090103297Abstract: 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: ApplicationFiled: February 6, 2006Publication date: April 23, 2009Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Georg Bogner, Moritz Engl, Stefan Grotsch, Patrick Kromotis, Jorg Erich Sorg
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Patent number: 7514279Abstract: An optoelectronic component having a basic housing or frame (12) and at least one semiconductor chip (20), specifically a radiation-emitting or -receiving semiconductor chip, in a cavity (18) of the basic housing. In order to increase the efficiency of the optoelectronic component (10), reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound (28) filled at least partly into the cavity (18) is provided, the material and the quantity of the filling compound (28) being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas (30) of the filling compound serve as reflector.Type: GrantFiled: December 2, 2004Date of Patent: April 7, 2009Assignee: Osram Opto Semiconductors GmbHInventors: Marcus Ruhnau, Bert Braune, Patrick Kromotis, Georg Bogner
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Publication number: 20090026482Abstract: An optoelectronic component having a basic housing or frame and at least one semiconductor chip, specifically a radiation-emitting or-receiving semiconductor chip, in a cavity of the basic housing. In order to increase the efficiency of the optoelectronic component, reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound filled at least partly into the cavity is provided, the material and the quantity of the filling compound being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas of the filling compound serve as reflector.Type: ApplicationFiled: September 30, 2008Publication date: January 29, 2009Inventors: Marcus RUHNAU, Bert Braune, Patrick Kromotis, Georg Bogner
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Publication number: 20090001490Abstract: 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: ApplicationFiled: July 21, 2005Publication date: January 1, 2009Inventors: Georg Bogner, Moritz Engl, Stefan Grotsch, Patrick Kromotis
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Patent number: 7456500Abstract: A light source module having a plurality of LEDs connected to a metal carrier (4) by means of an insulating layer (3). In order to afford protection against mechanical effects and in order to form a reflector, the LEDs are surrounded by a frame (10), which is segmented into a plurality of parts by expansion joints (13), in order that stresses occurring as a result of temperature fluctuations are absorbed.Type: GrantFiled: September 24, 2003Date of Patent: November 25, 2008Assignee: Osram Opto Semiconductors GmbHInventors: Patrick Kromotis, Günter Waitl
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Patent number: 7429758Abstract: An optoelectronic component having a basic housing or frame (12) and at least one semiconductor chip (20), specifically a radiation-emitting or -receiving semiconductor chip, in a cavity (18) of the basic housing. In order to increase the efficiency of the optoelectronic component (10), reflectors are provided in the cavity in the region around the semiconductor chip. These reflectors are formed by virtue of the fact that a filling compound (28) filled at least partly into the cavity (18) is provided, the material and the quantity of the filling compound (28) being chosen in such a way that the filling compound, on account of the adhesion force between the filling compound and the basic housing, assumes a form which widens essentially conically from bottom to top in the cavity, and the conical inner areas (30) of the filling compound serve as reflector.Type: GrantFiled: May 31, 2005Date of Patent: September 30, 2008Assignee: Osram Opto Semiconductor GmbHInventors: Marcus Ruhnau, Bert Braune, Patrick Kromotis, Georg Bogner
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Patent number: 7414269Abstract: 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: GrantFiled: May 28, 2004Date of Patent: August 19, 2008Assignee: Osram Opto Semiconductors GmbHInventors: Stefan Grötsch, Patrick Kromotis
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Publication number: 20080192153Abstract: 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: ApplicationFiled: April 21, 2006Publication date: August 14, 2008Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Gerhard Kuhn, Moritz Engl, Patrick Kromotis, Stefan Grotsch, Josef Huttner, Mario Wanninger, Georg Bogner