Patents Assigned to OSRAM Gesellschaft mit beschraenkter Haftung
  • Patent number: 9116280
    Abstract: The holding frame is equipped for holding at least one optical element, the holding frame consisting of an opaque material.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: August 25, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Peter Frey, Thomas Reiners, Ralf Vollmer
  • Patent number: 9106878
    Abstract: A method for adjusting the color point of a lighting unit including semiconductor-based lasers for generating an RGB signal. The method may include supplying at least one component of the RGB signal to a sensor via a filter; and actuating at least one of the semiconductor-based lasers by means of a signal detected by the sensor.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: August 11, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Jan Oliver Drumm, Jens Richter, Claus Seibert
  • Patent number: 9039198
    Abstract: In a method for projecting an image onto a projection area (10) by at least one first (110) and second (210) beam, in order to create an improved image on the projection area, the deviation of the projection of the first and second beam on the projection area is determined, and the intensity of the first and/or second beam is varied over time according to the previously determined deviations.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: May 26, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Jan Oliver Drumm, Henning Rehn, Bakuri Lanchava, Wolfgang Pabst, Robert Kraus
  • Patent number: 8994039
    Abstract: A lighting module may include a lighting band with a band-shaped flexible substrate, wherein at least one semiconductor light source is applied to a top side of the substrate, wherein the lighting module is faced with a protective layer such that at least one emission area of the at least one semiconductor light source is exposed thereby.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: March 31, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Thomas Donauer, Robert Kraus, Christine Maier, Giovanni Scilla, Steffen Strauss
  • Patent number: 8974087
    Abstract: A luminous device with a semiconductor light source and a light-transmissive converter element including a wavelength-converting phosphor sensitive to the light emitted by the semiconductor light source is disclosed. The semiconductor light source can be at least partly covered by the converter element and the converter element is movable such that the proportion of light which is wavelength-converted by the converter element is adjustable depending on the position of the converter element.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 10, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Martin Moeck, Raimund Oberschmid
  • Patent number: 8944657
    Abstract: A light source comprises a light-emitting device to emit electromagnetic radiation from an emitting surface and an optical element having a light input surface, a light output surface and side surfaces connecting the light input surface to the light output surface. The light input surface is located in the optical path of the light-emitting device, the electromagnetic radiation entering the optical element through the light input surface, and the light input surface has a concave curvature and an area being smaller than the area of the light output surface.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: February 3, 2015
    Assignees: OSRAM Opto Semiconductors GmbH, OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Alessandro Scordino, Julius Muschawek, Jan Marfeld
  • Patent number: 8946980
    Abstract: A method for fitting a base for a discharge lamp is provided. The method may include providing a discharge lamp with an end region, on which an option is provided for making contact with an electrode located in the interior of the discharge vessel; applying material to the end region; positioning a base sleeve onto the end region with the material; and positioning a clamping ring onto the base sleeve; wherein the clamping ring is of the kind that has at least one bead.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: February 3, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Swen-Uwe Baacke, Gerhard Loeffler, Dirk Rosenthal, Wolfgang Seitz
  • Patent number: 8941334
    Abstract: A method for minimizing the insulation stress of a high-pressure discharge lamp system, with an operating device, which generates a high voltage for starting the high-pressure discharge lamp, wherein a starting voltage time sum applied during lamp starting is minimized, the starting voltage time sum is the sum of all time segments Zi during which the magnitude of the starting voltage exceeds a starting voltage limit, and the starting voltage limit is defined as the factor range of a maximum value, in terms of magnitude, of the applied high voltages.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: January 27, 2015
    Assignee: OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Alois Braun, Joachim Mühlschlegel
  • Patent number: 8933639
    Abstract: In various embodiments, a device for dimming a light source is provided. The device may include a two-wire power supply line having interposed therein a switch for controlling transfer of the power supply towards the light source; a capacitance located downstream of the switch being traversed by a charge current as the switch is switched on; and a pre-charge stage interposed between the switch and the capacitance; the pre-charge stage being configured to limit to a given value the charge current.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: January 13, 2015
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Francesco Bianco, Alessandro Bizzotto, Paolo De Anna, Alessandro Scordino, Nicola Zanforlin
  • Patent number: 8901857
    Abstract: A light-emitting module may include at least one receiver configured to wirelessly tap off energy from an alternating field, and at least one light source, which is connected to the receiver for tapping off electrical power, wherein the at least one light-emitting module is surrounded at least partially by a protective housing, wherein the light-emitting module is self-aligning.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: December 2, 2014
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Bakuri Lanchava, Robert Kraus, Steven Wetzel
  • Patent number: 8896006
    Abstract: A red-emitting luminescent material that belongs to the class of nitridosilicates and is doped with at least one activator D, in particular Eu, wherein the material is a modified D-doped alkaline earth nitridosilicate M2Si5N8, where M=one or more elements belonging to the group Sr, Ca, Ba, with the nitridosilicate having been stabilized by an oxidic or oxinitridic—in particular alkaline earth—phase.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: November 25, 2014
    Assignee: OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Daniel Becker, Tim Fiedler, Frank Jermann, Bianca Pohl
  • Patent number: 8884544
    Abstract: A method for operating a lamp may include: Connecting a device to a pair of input connections of an electronic ballast and by this means determining a respective dimming duration for at least one predetermined situation; and Activating the lamp by the electronic ballast in at least one predetermined situation such that the lamp emits light with a reduced intensity compared with the normal intensity at which the lamp otherwise emits light over a period of a dimming duration determined for this situation.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 11, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Walter Limmer, Thomas Rossmanith
  • Patent number: 8878462
    Abstract: Various embodiments relate to a circuit arrangement for operating at least one discharge lamp. In order to prevent intrinsic flicker at low dimming settings and low temperatures, according to various embodiments, a direct current which is fed into the discharge lamp so as to avoid striated discharges at relatively high dimming settings is reduced or entirely eliminated.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: November 4, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventor: Peter Krummel
  • Patent number: 8861206
    Abstract: A casing for electronic ballast, in which a PCB assembly is received, may include: a top wall; a bottom wall opposite to the top wall; two opposite side walls extending integrally between the top wall and bottom wall; and two opposite end walls extending integrally from the top wall, wherein the top wall, bottom wall, side walls and end walls are formed integrally, the top wall, bottom wall and side walls define openings at both ends of the casing in a lengthwise direction of the casing, the end walls are arranged to be pivotable relative to the top wall so as to close the openings formed by the top wall, bottom wall and side walls.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: October 14, 2014
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Michele Tiso, Rene Twardzik, Fubing Xie
  • Patent number: 8836238
    Abstract: A detect method is provided for performing step dimming selection in an electronic ballast including an End of Lamp Life detect circuit and a half-bridge inverter, the End of Lamp Life detect circuit being connected to an input terminal of the control circuit, wherein each time when the power switch is turned on, it is judged whether the electronic ballast should enter the dimming mode or not by detecting the voltage at the input terminal of the control circuit before the half-bridge inverter starts operating.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: September 16, 2014
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Wei Gao, Markus Heckmann, Rene Twardzik, Yanshun Xue
  • Patent number: 8829793
    Abstract: In various embodiments, a high pressure discharge lamp is provided. The high pressure discharge lamp may include a lamp axis, and a two-ended discharge vessel that surrounds a discharge volume, electrodes extending into the discharge volume enveloped by the discharge vessel, and a fill that includes metal halides being accommodated in the discharge volume, the discharge vessel being surrounded by an outer bulb with a base at one end and being held therein by a frame, wherein the frame comprises a short supply lead and a long supply lead, the long supply lead comprising two straight conductors with a winding part therebetween, the winding part executing at most 1.25 turns about the discharge vessel.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 9, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Michael Beau, Yan Ming Li, Thomas Schroeder
  • Patent number: 8814397
    Abstract: A cooling element for a lighting device having a plurality of cooling fins, wherein adjacent cooling fins delimit a cooling fin intermediate space with at least one air duct for connecting at least two cooling fin intermediate spaces.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: August 26, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Nicole Breidenassel, Guenter Hoetzl, Fabian Reingruber
  • Patent number: 8816598
    Abstract: A circuit for driving a luminous means is provided. The circuit may include a driver circuit having an input and an output, wherein the output of the driver circuit is connected to the luminous means; and a detector circuit, on the basis of which, depending on an input signal of the driver circuit, a capacitor can be connected to the output of the driver circuit or to the input of the driver circuit.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: August 26, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventor: Richard Dilger
  • Patent number: 8796941
    Abstract: A method for operating a lamp, wherein in the preheating phase a first value of the voltage drop correlated with the reciprocal of the electrical resistance of a coil of the lamp is determined across a resistor at a first instant, and a second value of the voltage drop is determined at a second instant, may include: a) determining the difference between a first and the second value; b) b1) if the difference is greater than a first threshold value: carrying out an algorithm for lamp-type recognition; b2) if the difference is not greater than the first threshold value: c1) if the difference is greater than a second threshold value: d1) if the second value is greater than a third threshold value: determining a coil short circuit; d2) if the second value is not greater than the third threshold value: operating the lamp with the current set of operating parameters.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: August 5, 2014
    Assignee: OSRAM Gesellschaft mit Beschraenkter Haftung
    Inventors: Peter Krummel, Andreas Mitze
  • Patent number: 8754582
    Abstract: A detector circuit for actuating at least one fluorescent lamp may be configured such that the actuation of at least one fluorescent lamp occurs as a function of a first signal at a first input and as a function of a second signal at a second input if the first signal and the second signal are each greater than a first prescribed voltage and less than a second prescribed voltage during a start-up phase.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: June 17, 2014
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Juergen Klier, Richard Pfaller