Ledvance Gmbh

Osram Ag

Osram Gmbh

Klaus Eckert

Markus Hofmann

Henrike Streppel

Juergen Komar

Moritz Engl

Nicole Breidenassel

Lambert Frye

Bernd Pilhoefer

Lene Haberkorn

Fabian Reingruber

Michael Rosenauer

Florian Wagner

Marianne Auernhammer

Johannes Hoechtl

Thomas Bittmann

Jitao Liu

Carolin Muehlbauer

Georg Scheipl

HuaLi Yu

Baijin Xu

Qian Xie

Liqin Li

Thomas Preuschl

Bernhard Rieder

Georg Rosenbauer

Tobias Frost

Thomas Klafta

Jürgen Komar

Marcel Vuc

Florian Zeus

Andreas Hammer

Patrick Kotal

Andreas Lovich

Steffen Tegethoff

Isabell Sklorz

Carolin Mühlbauer

Christoph Strauss

Huali Yu

A lighting device contains a first circuit board and a second circuit board. The first circuit board has one or more connecting sections having overall at least two contact areas. The second circuit board has an opening through which the connecting section of the first circuit board can extend. At least two contact elements, which are electrically connected to conductive tracks of the second circuit board, are arranged on the second circuit board. Each contact element has a contact region by which the contact element butts against one of the contact areas of the first circuit board. As a result, an electrical connection is produced between the two circuit boards.

Lighting device with plug connection for electrical connection of two circuit boards

A method for producing a tube lamp uses at least one leadframe. A leadframe is a flat structure which has two opposing surfaces extending substantially parallel and spaced apart by the sheet thickness. One or more stabilizing sections are applied to the leadframe. The leadframe is fastened with the stabilizing sections in a tubular housing of the tube lamp.

Method for producing a tube lamp and corresponding tube lamp

A lamp includes a base, a light-permeable bulb containing at least one light source, and a driver for powering the light source. The driver is located within the base. The bulb has outwardly leading supply lines on the base side, and the driver has at least one contact element which projects in the direction of the bulb into which a free-standing section of the respective supply line is inserted to make contact. The technology is particularly applicable to lamps with LEDs as light sources, in particular for replacement of conventional lamps such as incandescent lamps.

Lamp

A lighting device includes a translucent bulb and a light engine arranged in said bulb. The bulb comprises a base with two connection wires for connecting the light engine. The light engine comprises two connection elements which are electrically and mechanically connected to the connection wires. The connection elements each comprise a gripping region for holding the light engine and a connecting region for connecting the light engine to the connection wires.

Lighting device with improved connection to the power supply

A light fixture includes a light-permeable tube with an end cap pushed onto a free end of the tube, a light module arranged inside the tube and a driver device at least partially received in the tube for driving the light module, wherein the tube has a substantially constant external diameter over its entire longitudinal extent.

Cementing endcap onto straight glass tubes

A light fixture and a method of making a light fixture include a light-permeable tube, at least one end cap pushed onto a free end of the tube for closure, and a driver device received at least partially in the tube and held in the tube by the end cap for driving a light module arranged in the tube. The end cap is fastened on the tube by an expanded adhesive and the driver device is fastened to the end cap or to the tube by the expanded adhesive.

Driver fixation with cement for LED tubes

A light fixture includes a light-emitting diode chip, a driver electronic, a first circuit board and a second circuit board, wherein the light-emitting diode chip is mounted on one of the two circuit boards and the driver electronic is mounted on the other one of the two circuit boards and a first conductive track of the first circuit board and a second conductive track of the second circuit board are connected electrically to one another with a spring contact.

Electrical connection of PCBs by clamp spring connector

A lamp includes a base with at least two electrical connecting elements. A bulb is rotatably mounted relative to the base. A light engine is arranged in the bulb with at least one light-emitting element and an electrically conductive substrate on which the light-emitting element is arranged. An electronic driver is connected to the electrically conductive substrate for activation of the light-emitting element. The base has a base sleeve in which the electronic driver is arranged. The electrically conductive substrate has a flexible connecting section between the electronic driver and the light-emitting element.

Rotateable endcap / base for tube lamps

A retrofit lamp comprises a heat sink, a light source module with a circuit board, whose rear side lies two-dimensionally on the heat sink and at the front side of which at least one semiconductor light source is arranged, and a ring partially covering the front side of the light source module, wherein the ring presses the light source module onto the heat sink. A method serves for producing a retrofit lamp, wherein the rear side of the circuit board of the light source module is laid on the heat sink and the ring is put on the retrofit lamp from the front such that it presses the light source module onto the heat sink. The invention is particularly applicable to LED retrofit lamps for replacing conventional light bulbs or halogen lamps.

Retrofit lamp

A lighting device comprises a holder for LED filaments. The holder has a first electrically conductive holding structure and a second electrically conductive holding structure. Each holding structure comprises an essentially longitudinal connection section and an attachment section essentially perpendicular to the connection section.

LED filament light source and lamp

In various embodiments, a lighting device is provided. The lighting device includes an optical unit having at least one optical element, which optical unit is fastened to the lighting device by means of at least one fastening region; wherein the optical unit is fastened with a force fit in at least one direction; wherein the at least one fastening region is formed as a spring element; and wherein the optical unit can be moved through the at least one fastening region in the direction of the force-fit fastening.

Lighting device

A lighting device includes a heat sink, through which air can flow transversely to its longitudinal extension and a plurality of semiconductor light sources, in particular light-emitting diodes, arranged on the heat sink, wherein at least two of the semiconductor light sources are aligned in different directions.

Disclosed is a lamp () comprising a driver circuit board () and a base () which are electrically connected to one another by a plug connector (). The invention applies to semiconductor lamps, for example, especially LED lamps, in particular retrofit lamps, e.g. to replace conventional incandescent lamps or halogen lamps.

Lamp comprising a driver circuit board and a base

LED lighting device having an improved LED holder

The semiconductor lamp () is equipped with a heat sink () which has a first part () and a second part () connected to each other by way of a press fit and which together delimit a receptacle () for a driver (), the first part () having an insert region () for insertion into the second part (), which insert region consists of spring elements () that can be pushed inwards. The invention is particularly useful for retrofit lamps, in particular incandescent or halogen retrofit lamps.

Growing community of inventors

Herbrechtingen, Germany

Klaus Eckert