Patents Assigned to Patent-Treuhand-Gesellschaft
  • Light Bulb Comprising An Illumination Body That Contains Carbide
    Publication number: 20080036377
    Abstract: The invention relates to a light bulb (1) comprising an illumination body (7), which is inserted, together with a filler material, into a bulb (2) in a vacuum-tight manner. The illumination body (7) has a metal carbide, whose melting point lies above that of tungsten. The current supply (10) is configured in two parts from a first section (6) and a second section (15). The first section is configured integrally with the illumination body (7) and consists of a wire and the second section, which functions as the actual current supply (15) is produced from a highly heat-resistant material.
    Type: Application
    Filed: July 6, 2005
    Publication date: February 14, 2008
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Axel Bunk, Matthias Damm, Georg Rosenbauer
  • Step-down controller circuit
    Patent number: 7330018
    Abstract: A step-down controller has an input having a first and a second input terminal for applying an input voltage, an output having a first and a second output terminal at which an output voltage can be provided, a series circuit including a switch and an inductance which is coupled between the first input terminal and the first output terminal. The switch has a control input for applying a control signal. A first diode is coupled between a junction point between the switch and the inductance and a reference potential such that, when the inductance is freewheeling, a current flow through the first diode (D1) is possible. There is a snubber network with a snubber capacitor, a second and third diode and an auxiliary inductance, a series circuit including the snubber capacitor, the third diode and the auxiliary inductance being coupled in parallel with the inductance.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: February 12, 2008
    Assignee: Patent-Treuhand-Gesellschaft fuer Gluehlampen mbH
    Inventors: Andreas Huber, Peter Niedermeier, Bernhard Reiter
  • Ballast having a dimming device
    Patent number: 7330001
    Abstract: A ballast having a dimming device for a low-pressure discharge lamp. It has two technically different possibilities for controlling the lamp brightness. The first possibility for controlling the lamp brightness is by means of adjusting the amplitude of the lamp current. The second possibility for brightness control is based on the fact that the low-pressure discharge lamp can be operated with a pulsed lamp current. In particular, both operating modes are used in combination in specific brightness ranges.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: February 12, 2008
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Klaus Fischer, Josef Kreittmayr
  • Optoelectronic module
    Publication number: 20080031575
    Abstract: An optoelectronic module having an optoelectronic device with a contact conductor and a connection carrier with a connection area. The contact conductor is electrically conductively and/or thermally conductively connected to the connection area. A local, delimited heating region is formed on the contact conductor or the connection carrier has a cutout, which is at least partly covered by the contact conductor. A method which enables simplified and reliable production of an optoelectronic module is also described.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 7, 2008
    Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventor: Roland Rittner
  • Circuit arrangement and method for operating at least one electric lamp
    Patent number: 7327094
    Abstract: The present invention relates to a circuit arrangement for operating at least one electric lamp (LP) having a drive circuit (16), which has at least one terminal for a system voltage (UN) on the input side and at least one terminal for the at least one electric lamp (LP) on the output side; the drive circuit (16) having a control unit (18) and a step-up converter having a step-up converter inductor (L2) and a switch (S1), and the control unit (18) being designed to operate the step-up converter in a discontinuous mode, in which the current (IN) through the step-up converter inductor (L2) has gaps, the duration (?t) of these gaps being varied. It also relates to an operating method for at least one electric lamp (LP) using such a circuit arrangement.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: February 5, 2008
    Assignee: Patent-Treuhand-Gesellschaft fur Elektrische Gluhlampen mbH
    Inventors: Olaf Busse, Markus Heckmann, Reinhard Lecheler, Alfons Lechner, Siegfried Mayer, Thomas Pollischansky, Bernd Rudolph, Bernhard Schemmel, Kay Schmidtmann, Harald Schmitt, Thomas Siegmund, Arwed Storm, Horst Werni
  • Ballast having a dimming device
    Patent number: 7327099
    Abstract: A ballast having a dimming device for a low-pressure discharge lamp. For brightness control, the DC component of the periodically modulated envelope of the lamp current is varied. In this case, the current does not fall below predetermined minimum values for the lamp current. Phases with a high lamp current are characterized by a steep rising edge, compared with a flatter falling edge.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: February 5, 2008
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlamplen mbH
    Inventors: Klaus Fischer, Josef Kreittmayr
  • Energy transducer module and light apparatus
    Publication number: 20080022920
    Abstract: An energy transducer module (1) which has a turbine (2) for converting the flow energy of a fluid (4) to rotation energy, and has a generator (3) for converting the rotation energy to electrical energy, with the energy transducer module (1) being provided as an energy source for a unit which produces radiation. The energy transducer module (1) can alternatively be used as a flow sensor.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 31, 2008
    Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventor: Udo Custodis
  • Incandescent lamp having a carbide containing luminous element
    Publication number: 20080024061
    Abstract: An incandescent lamp having a carbide containing luminous element, uses a wire for the luminous element that is coated on the outside with at least two different high melting metal compounds from at least one of the groups of carbides, borides and nitrides. The luminous element reaches a temperature of at least 3000° K during operation.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 31, 2008
    Applicants: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH, IP2H AG
    Inventors: Axel Bunk, Matthias Damm, Frank Friess, Adalbert Kovacs, Georg Rosenbauer, Georg Schwarz, Gerhard Wolf, Christa Bunk
  • Metal halide lamp
    Patent number: 7323820
    Abstract: The metal halide lamp has a ceramic discharge vessel and contains two groups of metal halides: a first group made up of the emitters and a second group made up of the wetters. The second group comprises at least one of the metal halides of Mg or Yb.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: January 29, 2008
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Stefan Jüngst, Klaus Stockwald
  • Light Bulb Containing an Illumination Body That Contains Carbide
    Publication number: 20080012488
    Abstract: The invention relates to a light bulb comprising an illumination body, which is inserted, together with a filler material, into a bulb in a vacuum-tight manner. The illumination body has a metal carbide, whose melting point lies above that of tungsten. The current supply is configured in two parts from a first section and a second section. The current supply is configured integrally with the illumination body from a single wire and is covered with a coating that reduces the susceptibility to breakage.
    Type: Application
    Filed: July 6, 2005
    Publication date: January 17, 2008
    Applicant: Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen MBH
    Inventors: Axel Bunk, Matthias Damm, Georg Rosenbauer
  • Metal halide high pressure discharge lamp
    Patent number: 7319294
    Abstract: In the metal halide high-pressure discharge lamp for stage, film and television lighting systems and for projection technology and effect lighting, the discharge vessel contains dysprosium and cesium as fill metals for the metal halides. Optimum results for dimmability, arc instability and color rendering are achieved if the fill additionally includes 0.12 to 3.8 ?mol of vanadium and if appropriate 0.05 to 1.0 ?mol of zirconium per ml of vessel volume. These metals achieve improved color rendering, in particular red rendering, with an Ra of from 70 to 95 and an R9 of from 45 to 90.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: January 15, 2008
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventor: Hans-Werner Golling
  • Spiral-Wound Filament for an Incandescent Lamp and Incandescent Lamp
    Publication number: 20080001522
    Abstract: A spiral-wound filament (110) for an incandescent lamp, includes two lead-in wires (1102, 1103), the lead-in wires (1102, 1103) having one bent limb (11021, 11031) each which are arranged in a joint plane that extends off-set in parallel to the winding axis (1104) of the spiral-wound filament (110). An incandescent lamp that has an axially symmetric lamp base (100) and a spiral-wound filament (110) that is off-set in parallel to the lamp base axis (A-A) is also disclosed.
    Type: Application
    Filed: May 2, 2005
    Publication date: January 3, 2008
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHL
    Inventors: Frank Glockler, Christoph Krieglmeyer
  • DIELECTRIC BARRIER DISCHARGE LAMPS WITH A PREFABRICATED STOPPER AND ASSOCIATED MANUFACTURING METHOD
    Publication number: 20080001542
    Abstract: A dielectric barrier discharge lamp with a discharge vessel (6) having inner electrodes (7) and with a gas-impermeable stopper (10). The stopper (10) has power supply lines (2) making contact with the inner electrodes (7). The gas-impermeable stopper (10) is incorporated in the discharge vessel (6) as a cohesively handleable part, by it being introduced into an opening of the discharge vessel (6). In this case, the opening of the discharge vessel (6) is sealed in a gas-tight manner by the stopper (10) via a change in shape of the discharge vessel (6) and/or of the stopper (10).
    Type: Application
    Filed: June 19, 2007
    Publication date: January 3, 2008
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Georg Bschorer, Jorg Rink
  • Reflector device for a lighting device
    Publication number: 20070297180
    Abstract: A reflector device for a lighting device, having a reflector element that has a light emission side and a back side facing away from the light emission side. From the back side to the light emission side, at least one mounting opening is provided, through which an electrically conductive connection element is intended to be passed by its second end region and coupled with the reflector element. The connection element, in turn, serves the purpose of coupling to an individual lamp on the one hand and an electrical power source on the other, and in its first end region it has means for securing the reflector device in a retention device. It furthermore has a third region, adjoining the first end region, that has a round diameter in cross section, and this diameter does not increase between the third region and the second end region.
    Type: Application
    Filed: May 2, 2007
    Publication date: December 27, 2007
    Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlamplen mbH
    Inventors: Johann Holland, Andreas Nittke
  • Method For Operation Of A High Pressure Discharge Lamp Operating Device For A High Pressure Discharge Lamp And High Pressure Discharge Lamp With An Operating Device
    Publication number: 20070296349
    Abstract: The invention relates to a method and a device for operation of ah high pressure discharge lamp with a low-frequency current of alternating polarity, whereby the high pressure discharge lamp is operated during a start phase at a higher power than the rated power thereof. According to the invention, the high pressure discharge lamp is provided with a current, at least during the start phase, with a commutation time of less than or equal to 40 microseconds.
    Type: Application
    Filed: July 28, 2005
    Publication date: December 27, 2007
    Applicant: Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen MBH
    Inventors: Michael Bonigk, Matthias Lau, Ralf Romberg
  • Color-tunable illumination system for imaging illumination
    Publication number: 20070297171
    Abstract: A color-tunable illumination system for imaging illumination having a tuning means and at least two light sources of different colors. The illumination system comprises a reflector having a reflector contour, the light sources being accommodated in the vicinity of the reflector contour, and a compact diffusing medium accommodated at the focal point of the reflector. The light from the light sources is directed substantially onto the diffusing medium and then, from there, is diffused onto the reflector contour, electronic driving of the light sources making it possible to regulate the intensity of the light sources separately from one another, with the result that the light leaving the reflector can be color-tuned.
    Type: Application
    Filed: May 22, 2007
    Publication date: December 27, 2007
    Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlamplen mbH
    Inventors: Dirk Berben, Tim Fiedler, Frank Jermann
  • High-Pressure Discharge Lamp
    Publication number: 20070296339
    Abstract: A high-pressure discharge lamp includes a quartz glass discharge chamber (1) having at least one end (11) provided with a molybdenum film sealing element (2) and at least one electrode (4) which is connected to the sealing element (2) and is protruded in the lower chamber (10) of the discharge chamber (1), wherein the lamp includes a spiral (5) whose slope is equal to or greater than 600% and which encompasses the part of the electrode (4) in the end (11) area provided with the sealing element (2) of the discharge chamber (1) outside of the sealing element (2).
    Type: Application
    Filed: November 18, 2005
    Publication date: December 27, 2007
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHL
    Inventors: Dirk Grundmann, Andreas Naujoks, Conrad Schimke, Frank Werner
  • DRIVER ARRANGEMENT FOR LED LAMPS
    Publication number: 20070290625
    Abstract: A driver arrangement for LED light sources includes a transformer having primary and secondary winding connections. A first electronic switch (SW1) controls current flow through the primary winding, and a sensing resistor is coupled to the primary winding to produce a current sensing signal. A second electronic switch (SW2) is sensitive to the sensing signal to switch off SW1 as current flow through the primary winding reaches a given threshold. SW1 is thus alternatively turned-on and off in alternating turn-on and switch-off phases to power the LED light source via the secondary winding. SW1 is a field effect transistor, preferably a MOSFET. The transformer is SELV-rated. The sensing resistor may be a variable resistor to adjust the duration of the on/off phases to permit controlled dimming.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 20, 2007
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Xi Yuan HE, Rui Ma, Giovanni Scilla
  • Smoothing circuit for improving EMC
    Patent number: 7309963
    Abstract: The present invention relates to an electronic ballast for discharge lamps, for example low-pressure discharge lamps, having a converter having a switching element and a two-part lamp inductor which is connected upstream and downstream of the discharge lamp. An electronic ballast according to the invention has a smoothing circuit which reduces voltage jumps caused by switching operations in the converter at the lamp terminals.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: December 18, 2007
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Olaf Busse, Markus Heckmann, Reinhard Lecheler, Alfons Lechner, Siegfried Mayer, Thomas Pollischansky, Bernd Rudolph, Bernhard Schemmel, Kay Schmidtmann, Harald Schmitt, Thomas Siegmund, Arwed Storm, Horst Werni
  • Portable lamp
    Patent number: D561921
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 12, 2008
    Assignee: Patent-Treuhand - Gesellschaft fur eletrische Gluhlampen mbH
    Inventor: Miro Aleksjew