Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Osram Sylvania Inc.

Patent-treuhand-gesellschaft Fuer Elektrische Gluehlampen Mbh

Osram Gmbh

Osram Ag

Osram Gesellschaft MIT Beschrankter Haftung

Arnulf Rupp

Guenther Hirschmann

Ming Chu Li

Gerhard Behr

Keng Chen

Oskar Schallmoser

Robert Reed Harrison

Matthias Burkhardt

Peter Helbig

Robert Kraus

Harald Dellian

Andrew Johnsen

Igor Kartashev

Guy P Bouchard

Dennis Sprenger

Bernhard Ertl

Ming Li

Gerwin Thiel

Karl Kyrberg

Thomas Hanisch

Bontcho Gotchev

Ferdinand Walther

Robert Harrison

In various embodiments, a transom light arrangement may include a transom, which is arranged between a construction element and a transom light, a light source arrangement, which is mounted at least one of on or in the transom, with the light source arrangement or the transom defining a horizontal plane, and a screen structure. The light source arrangement and the screen structure are arranged relative to one another and are configured such that a spatial region above the horizontal plane is illuminated using the light source arrangement.

Transom light arrangement and method for producing a transom light arrangement

Flexible light engines capable of being cut, and methods thereof, are provided. A cuttable flexible light engine includes a flexible strip and strings of solid state light sources coupled in parallel. A voltage balancer establishes a desired current flow through the strings of solid state light sources when the flexible strip is cut to a desired length, and may be part of a connector placed where the strip is cut. The strings may be provided in a first set of strings coupled in parallel between a first conductive path and an intermediate conductive path and a second set of strings coupled in parallel between the intermediated conductive path and a second conductive path. A cuttable flexible light engine may also include test points positioned within the strings.

Cuttable flexible light engines

A circuit for actuating semiconductor light-emitting elements, wherein the circuit is supplied by a rectified mains voltage, may include at least two series-connected segments, which each have one or more series-connected semiconductor light-emitting elements, wherein the semiconductor light-emitting elements in at least two of the segments are different, which results in different forward voltages of the segments, and in each case one driver for actuating a segment, wherein the driver has at least one electronic switch, by means of which the segment may be bypassed, wherein the circuit arrangement is designed to decide to bypass the segment assigned to the circuit arrangement, on the basis of an instantaneous value of the rectified mains voltage and on the basis of the bypass state of the adjacent segments.

Actuation of semiconductor light-emitting elements on the basis of the bypass state of adjacent semiconductor light-emitting elements

The present invention relates to a circuit arrangement having a transformation apparatus, which has a primary side (P) and a secondary side (S), wherein the primary side and the secondary side (S) are DC-isolated from one another, wherein the primary side (P) has a terminal for a supply voltage (UE) and is connected to a first reference potential, wherein the secondary side (S) comprises a first and a second output line, which, in the normal case, are not coupled to a reference potential and which form an output terminal, at which a voltage for a load (LA) can be provided, wherein it furthermore comprises: an apparatus for tapping off a measured voltage potential (CP) on the secondary side (S); and an apparatus (10) for determining whether the measured voltage potential is in a permissible range. The invention moreover relates to an operating method for a lamp using a circuit arrangement.

Circuit arrangement having a transformation apparatus and operating method for a lamp using a circuit arrangement having a transformation apparatus

Circuit arrangement having a converter without a transformer but with an inductor for the pulsed operation of dielectric barrier discharge lamps The circuit arrangement according to the invention comprises an inductor-type converter for the pulsed operation of dielectric barrier discharge lamps (EL). The invention proposes both a half bridge variant and a full bridge variant. By selecting the inductance value of the inductor (L), it is possible to influence the edge steepness of the pulses, in the case of more than one inductor even independently for the rising and falling edges.

Circuit arrangement having a converter without a transformer but with an inductor for the pulsed operation of dielectric barrier discharge lamps

A transformer for being fitted in a lamp base and to a lamp base having a transformer arranged in it, the transformer housing being provided with guide elements which serve the purpose of inserting the transformer in the correct position in the lamp base. The transformer is preferably in the form of a starting transformer of a pulse starting apparatus integrated in the lamp base of a high-pressure discharge lamp.

Transformer, lamp base having a transformer and high-pressure discharge lamp

A circuit for operating a high intensity discharge (HID) lamp includes an H-bridge connected between a common terminal and a power line, and a control circuit connected to the H-bridge. A boost circuit is connected in parallel with the H-bridge between the power line and the common terminal, where the boost circuit includes a resistor, a Zener diode and a capacitor connected in series.

High intensity discharge lamp with boost circuit

The invention relates to a lamp base for a high-pressure discharge lamp and to a high-pressure discharge lamp having a mounting plate for electronic modules and having a plug socket for connecting a voltage source to the lamp base, the plug socket being in the form of a surface-mounted module on the mounting plate.

Lamp base for a high-pressure discharge lamp and high-pressure discharge lamp

The following circuit is proposed for discharge lamps having a particularly high starting voltage. An a.c. voltage generator () provides a corresponding a.c. voltage. A starting voltage generating device, which comprises a piezo transformer (), is connected to the a.c. voltage generator () and can be connected at its output to a discharge lamp (), generates a starting voltage from the a.c. voltage. The starting voltage generating device in this case comprises at least one diode () which is connected in parallel with the output of the starting voltage generating device. A zero-order pump circuit is thus integrated in the starting circuit. Advantageous here is the use of higher-order pump circuits.

Switching apparatus for operating discharge lamps

The invention relates to a lighting system with a high-pressure discharge lamp and a control unit (W, FS, C , W) for the high-pressure discharge lamp ( ), where the lamp base ( ) has at least two housing parts ( ) which are connected to one another by a releasable closure ( ). The first housing part ( ) has fastening means ( ) for the at least one lamp vessel ( ). The high-voltage part (TR) of the ignition device (TR, FS, C ) is accommodated in the first housing part ( ), whilst the second housing part ( ) is provided with the electrical connections ( ) for the high-pressure discharge lamp ( ) and preferably contains the remaining components (FS, C ) of the ignition device and the voltage converter (W) of the control unit.

Lighting system with a high-pressure discharge lamp

A circuit arrangement for operating at least one high-pressure discharge lamp with a high-frequency alternating voltage, the circuit arrangement having a voltage converter (W) with an alternating voltage output (j,j,), a load circuit which is connected to the alternating voltage output (j,j,) and which has at least one lamp inductor (L,), a coupling capacitor (C,) and terminals (j,j,) for at least one high-pressure discharge lamp (LP), and a starter (Z) with a high-voltage source and a high-voltage DC output (j,j,) for starting a gas discharge in the at least one high-pressure discharge lamp (LP). The coupling capacitor (C,) is connected to the high-voltage DC output (j,j,) via a charging resistor (R,).

Circuit arrangement and method for operating at least one high-pressure discharge lamp

The invention relates to a high-pressure discharge lamp having a base at one end and whose return conductor (,) is protected with the aid of a bidirectional trigger (D) against high induced voltages of the radio interference suppression reactor (L,) connected to the return conductor (,).

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Oberhaching, Germany

Arnulf Rupp