Patents Assigned to Osram GmbH
  • Light Source
    Publication number: 20130170200
    Abstract: A light source comprising at least one illumination unit having a plurality of light-emitting diodes comprising a plurality of first light-emitting diodes and a plurality of second light-emitting diodes, wherein the first and second light-emitting diodes emit light having mutually different colors, and wherein the plurality of the light-emitting diodes are arranged along a bent curve.
    Type: Application
    Filed: June 3, 2011
    Publication date: July 4, 2013
    Applicant: OSRAM GmbH
    Inventor: Martin Moeck
  • ELECTRONIC BALLAST FOR LIGHTING UNIT AND LIGHTING APPARATUS
    Publication number: 20130169185
    Abstract: An electronic ballast for a lighting unit may include: a Power Factor Correction (PFC) circuit, an inverter, and a control circuit for controlling startup of the inverter, wherein the control circuit is coupled between the PFC circuit and the inverter and includes: a switching device coupled in a startup loop for the inverter; a unidirectional conductive device coupled between a PFC power supply circuit for providing an operation current to a PFC controller of the PFC circuit and an input of the PFC controller, for preventing a startup current flowing through the PFC circuit from triggering the switching device; and a triggering device coupled to the switching device and a connection point between the unidirectional conductive device and the PFC power supply circuit, for controlling switch-on and -off of the switching device.
    Type: Application
    Filed: August 25, 2011
    Publication date: July 4, 2013
    Applicant: OSRAM GMBH
    Inventors: Hong Dai, Yuancheng Guo, Wei Gao, Changsong Ma
  • REFLECTOR AND A LIGHTING DEVICE HAVING THE SAME
    Publication number: 20130170226
    Abstract: A reflector for a lighting device is provided. The reflector may include: a plurality of reflecting bodies each having a plurality of internal reflecting facets; wherein the plurality of reflecting bodies are arranged to rotate by different rotation angles around their respective rotation axes, so as to be capable of compensating unsmooth light distribution caused by the internal reflecting facets.
    Type: Application
    Filed: August 8, 2011
    Publication date: July 4, 2013
    Applicant: OSRAM GMBH
    Inventors: Aiai Li, Yabin Luo, Tengzhi Qin, Hui Wu
  • Compounds as Ligands for Transition Metal Complexes and Materials Made Thereof, and Use Therefor
    Publication number: 20130158262
    Abstract: The invention relates to novel compounds as ligands for transition metal complexes and materials made thereof that can be used, for example, as emitters in organic light-emitting electrochemical cells (OLEECs). According to the invention, non-fluorinated electron-poor emitter materials are disclosed for the first time that can be used in organic light-emitting electrochemical cells.
    Type: Application
    Filed: May 31, 2011
    Publication date: June 20, 2013
    Applicant: OSRAM GMBH
    Inventors: Andreas Kanitz, Daniel Stark
  • Lighting Device and Associated Method
    Publication number: 20130148349
    Abstract: A lighting device comprises a housing carrying a linear array of light radiation sources and one or more elongated diffusive screens arranged facing the array of light sources so as to be passed through by the light radiation. The screen or screens have a pattern of geometric features for producing a radiation pattern of the light radiation emitted by the lighting device as a result of passing through the diffusive screen or screens. By replacing the diffusive screen or screens with screens which have a different pattern of geometric features it is possible to vary the radiation pattern of the light radiation emitted by the lighting device.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 13, 2013
    Applicant: OSRAM GmbH
    Inventor: OSRAM GmbH
  • METHOD FOR OPERATING A HIGH-PRESSURE DISCHARGE LAMP OUTSIDE THE NOMINAL POWER RANGE THEREOF
    Publication number: 20130134899
    Abstract: A method for operating a high-pressure discharge lamp outside the nominal power range thereof is provided. The method may include: providing the high-pressure discharge lamp; and varying relative to operation at nominal power, one of at a lamp power of less than 85% of the nominal power and at a lamp power of greater than 110% of the nominal power at least one or more of the following parameters: lamp frequency, lamp current in a commutation pulse, length of the commutation pulse, and the commutation pattern.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 30, 2013
    Applicant: OSRAM GMBH
    Inventor: Norbert Magg
  • Fastening Element, Luminous Module and Luminous Apparatus
    Publication number: 20130121759
    Abstract: A fastening element for fastening a light source substrate to a support, wherein the fastening element is configured to be seated on the light source substrate, and includes at least one fastening means for fastening to the support.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 16, 2013
    Applicant: OSRAM GmbH
    Inventors: Nicole Breidenassel, Tobias Frost, Guenter Hoetzl, Thomas Preuschl, Peter Sachsenweger
  • BUCK CONVERTER AND METHOD FOR PROVIDING A CURRENT FOR AT LEAST ONE LED
    Publication number: 20130119883
    Abstract: A converter for providing a current for an LED includes: a buck diode, a buck inductor and a buck switch; and a first auxiliary switch, wherein the buck switch and the buck diode are coupled in series, wherein the buck inductor is coupled between the interconnection point between the buck diode and the buck switch, on one side, and a first output connection, on the other side. A reference electrode of the first auxiliary switch is coupled to a second node, at which a second voltage can be provided, which second voltage is correlated with the current provided to the LED, wherein the first auxiliary switch is coupled to the buck switch such that the disconnection time of the buck switch is fixed by the first voltage and the switch-on time of the buck switch is fixed by the sum of the first voltage and the second voltage.
    Type: Application
    Filed: July 13, 2011
    Publication date: May 16, 2013
    Applicant: OSRAM GMBH
    Inventor: Bernd Rudolph
  • Light-emitting-diode chip comprising a sequence of GaN-based epitaxial layers which emit radiation and a method for producing the same
    Patent number: 8436393
    Abstract: A light-emitting diode chip comprises a GaN-based, radiation-emitting epitaxial layer sequence, an active region, an n-doped layer and a p-doped layer. The p-doped layer is provided, on its main surface facing away from the active region, with a reflective contact metallization comprising a radioparent contact layer and a reflective layer. Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 7, 2013
    Assignee: Osram GmbH
    Inventors: Berthold Hahn, Ulrich Jacob, Hans-Jürgen Lugauer, Manfred Mundbrod-Vangerow
  • Lighting device having a rail device that can be fixed to a surface of an object
    Patent number: 8344642
    Abstract: A lighting device may include a transformer; a rail device, configured to be attached to a surface of an object, wherein the rail device has two rails, which are arranged so as to be spaced apart from one another, to which rail device a lamp can be attached and on which the lamp can be supplied with power, the rails being electrically connected to the transformer, at least one first lamp being arranged on the rails and being configured to be supplied with power in the low-voltage range via the transformer and the rails; and at least one second lamp being arranged on a housing of the transformer and being connected to the system voltage.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: January 1, 2013
    Assignee: OSRAM GmbH
    Inventor: Thomas Noll
  • Arrangement for cooling semiconductor light sources and floodlight having this arrangement
    Patent number: 8342728
    Abstract: An arrangement for cooling semiconductor light sources (5), wherein the semiconductor light sources (5) are arranged on a heat-conducting module (11), which is operatively connected to an evaporator zone (27) of a heat pipe (20), wherein a first condensation zone (23) of the heat pipe (20) is connected to a first heat sink (33), wherein the heat pipe (20) is connected to at least one second condensation zone (25) with at least one second heat sink (25), and a heat flow can be switched over between the condensation zones (23, 25) or the second condensation zone (25) can be switched in.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: January 1, 2013
    Assignee: OSRAM GmbH
    Inventors: Alois Biebl, Stefan Dietz
  • Circuit arrangement, and method for the operation of a high-pressure discharge lamp
    Patent number: 8339057
    Abstract: A circuit arrangement for operating a high-pressure discharge lamp with an electronic ballast, which is designed to provide an AC feed signal for the high-pressure discharge lamp, the frequency of the AC feed signal being at least 1 MHz, wherein the electronic ballast is adapted to modulate the amplitude of the AC feed signal.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: December 25, 2012
    Assignee: OSRAM GmbH
    Inventors: Martin Honsberg-Riedl, Peter Niedermeier, Burkhard Ulrich
  • High-pressure discharge lamp for operation with longitudinal acoustic modulation
    Patent number: 8334652
    Abstract: A high-pressure discharge lamp may include an elongate ceramic discharge vessel, at the ends of which an electrode system with an electrode tip pointing towards the discharge is mounted in a seal, the seal being tubular, the discharge vessel having an aspect ratio of at least 1.5, the discharge vessel having a metal halide fill and a wall load of more than 25 W/cm2, wherein the lamp is configured for operation with longitudinal acoustic modulation, the specific rated power of the entire outer surface area of the discharge vessel lying between 17 and 22 W/cm2, while at the same time the wall load in a subregion of the surface area, which extends between the tips of the electrodes, lies in the range of between 28 and 40 W/cm2.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: December 18, 2012
    Assignee: OSRAM GmbH
    Inventors: Patrick Mueller, Klaus Stockwald, Herbert Weiss
  • LED module
    Patent number: 8328387
    Abstract: An LED module (10) comprising a thermally conductive circuit board (12); at least one LED chip (14a to 14f) mounted on the thermally conductive circuit board (12); at least one temperature sensor (24) mounted on the thermally conductive circuit board (12), for determining the temperature of the at least one LED chip (14a to 14f); an optical arrangement (16), which is arranged above the at least one LED chip (14a to 14f) and is mounted on the thermally conductive circuit board (12), wherein the optical arrangement (16) has at least one light-guiding section (20); and a light sensor (18) arranged on the thermally conductive circuit board (12), said light sensor being arranged with respect to the at least one light-guiding section (20) in such a way that it can sense light guided in the light-guiding section (20).
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: December 11, 2012
    Assignee: OSRAM GmbH
    Inventors: Ralf Hying, Peter Niedermeier, Oskar Schallmoser
  • Method for Fabricating a Semiconductor Component based on GaN
    Publication number: 20120211787
    Abstract: A semiconductor component has a plurality of GaN-based layers, which are preferably used to generate radiation, produced in a fabrication process. In the process, the plurality of GaN-based layers are applied to a composite substrate that includes a substrate body and an interlayer. A coefficient of thermal expansion of the substrate body is similar to or preferably greater than the coefficient of thermal expansion of the GaN-based layers, and the GaN-based layers are deposited on the interlayer. The interlayer and the substrate body are preferably joined by a wafer bonding process.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 23, 2012
    Applicant: Osram GmbH
    Inventors: Stefan BADER, Dominik Eisert, Berthold Hahn, Volker Härle
  • Wavelength-converting casting composition and light-emitting semiconductor component
    Patent number: 8071996
    Abstract: The wavelength-converting casting composition is based on a transparent epoxy casting resin with a luminous substance admixed. The composition is used in an electroluminescent component having a body that emits ultraviolet, blue or green light. An inorganic luminous substance pigment powder with luminous substance pigments is dispersed in the transparent epoxy casting resin. The luminous substance is a powder of Ce-doped phosphors and the luminous substance pigments have particle sizes ?20 ?m and a mean grain diameter d50?5 ?m.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: December 6, 2011
    Assignee: OSRAM GmbH
    Inventors: Klaus Höhn, Alexandra Debray, Peter Schlotter, Ralf Schmidt, Jürgen Schneider
  • Radiation-emitting optical component
    Patent number: 8039855
    Abstract: A radiation-emitting semiconductor component, having a layer structure (30) which includes an active layer (32) which, in operation, emits radiation with a spectral distribution (60), and electrical contacts (36, 38, 40) for applying a current to the layer structure (30), includes a coating layer (44) which at least partially surrounds the active layer (32) and holds back a short-wave component of the emitted radiation (60).
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: October 18, 2011
    Assignee: OSRAM GmbH
    Inventors: Ulrich Jacob, Gertrud Kräuter, Andreas Plössl
  • Light-emitting-diode chip comprising a sequence of GAN-based epitaxial layers which emit radiation and a method for producing the same
    Patent number: 7939844
    Abstract: A light-emitting diode chip (1) comprises a GaN-based, radiation-emitting epitaxial layer sequence (3), an active region (19), an n-doped layer (4) and a p-doped layer (5). The p-doped layer (5) is provided, on its main surface (9) facing away from the active region (19), with a reflective contact metallization (6) comprising a radioparent contact layer (15) and a reflective layer (16). Methods for fabricating LED chips of this type by thin-film technology are provided, as are LED components containing such LED chips.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: May 10, 2011
    Assignee: OSRAM GmbH
    Inventors: Berthold Hahn, Ulrich Jacob, Hans-Jürgen Lugauer, Manfred Mundbrod-Vangerow
  • Configuration of Multiple LED Module
    Publication number: 20110095311
    Abstract: A configuration of multiple LED modules having a plurality of LED modules that each contain a carrier that has a first main area, a second main area and at least one semiconductor layer. The first main area has a planar configuration. The LED modules also include a plurality of LED semiconductor bodies that applied on the first main area of the carrier. In addition, the multiple LED modules include a common heat sink, where the carrier of the LED modules in each case are connected to the common heat sink on the second main area.
    Type: Application
    Filed: January 4, 2011
    Publication date: April 28, 2011
    Applicant: Osram GmbH
    Inventors: Werner Marchl, Werner Späth, Günter Waitl
  • Light
    Patent number: D634881
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 22, 2011
    Assignee: OSRAM GmbH
    Inventor: Martin Moeck