Osram Opto Semiconductors Gmbh

Osram Ag

Osram Gesellschaft MIT Beschrankter Haftung

Ledvance Gmbh

Osram Gmbh

Osram Gesellschaft MIT Beschraenkter Haftung

Osram Oled Gmbh

Osram Oledgmbh

Siemens Aktiengesellschaft

Markus Hofmann

Moritz Engl

Klaus Eckert

Rainer Huber

Mario Wanninger

Joachim Reill

Nicole Breidenassel

Fabian Reingruber

Stefan Grötsch

Ralph Bertram

Alexander Wilm

Michael Sailer

Juergen Komar

Peter Helbig

Günter Waitl

Gerhard Behr

Thomas Reiners

Ralf Vollmer

Thomas Schlereth

Alois Biebl

Günther Hirschmann

Heinz Haas

Michael Bestele

Stefan Hackenbuchner

Kurt-Jürgen Lang

Tony Albrecht

Julius Muschaweck

Thomas Preuschl

Harald Stoyan

Henrike Streppel

Thomas Klafta

Andre Kluge

Ludwig Plötz

Johannes Hoechtl

Florian Zeus

Marcel Vuc

Thomas-Dieter Tenrahm

Uwe Sieber

Marco Link

Vadim Shevchenko

Thomas Helmis

Andreas Lovich

Monika Rose

Torsten Matthias

Martin Lenze

Ulrich Beul

Carolin Muehlbauer

Sabine Grendel

Frank Mildner

Steffen Tegethoff

Michael Rasp

Hubertus Michael Wigger

Zoran Bosnjak

Kurt Jürgen Lang

Peter Hollnberger

Christoph Strauss

Elke Henschel

Markus Paus

Daniel Lindemann

Thomas Klemke

Manfred Hartmann

Christoph Buse

Adam Maguire

Achim Schirrmacher

Daniel Ecke

Arsène Brice Kadji

Meike Jaspers

Stefan GRÖTSCH

Dirk MÜLLER

Bernward Mertens

Thomas Brandenburg

Oliver Ricken

Oliver Ceranski

Frank Brumbi

Stefan Bentele

Andreas Stiehm

Manuel Ettler

A light fixture having at least one LED and at least one filament, wherein the at least one filament is connected in series to the at least one LED. A current supplied to the at least one LED in the light fixture is regulated by the electrical properties of the at least one filament. Thus the at least one LED in the light fixture can be run without an electrical driver.

Light fixture with at least one LED

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 filament includes a radiation-transmissive substrate, a plurality of LEDs, and a converter layer, wherein the substrate has an upper side and a lower side facing away from the upper side, the LEDs being arranged on the upper side of the substrate, the converter layer covers the LEDs, the upper side and the lower side of the substrate, and the converter layer has a first sublayer on the upper side and a second sublayer on the lower side, the converter layer is configured to obtain an improved radiation profile of the filament, along a lateral direction, the converter layer has a continuously varying vertical layer thickness, the lateral direction is a lateral longitudinal direction parallel to a main extension surface of the substrate, and the substrate has a length expanding along the lateral longitudinal direction that is greater than a width of the substrate along a lateral transverse direction.

Filament, method of producing a filament and a light source including a filament

A filament includes a radiation-transmissive substrate, a plurality of light emitting diodes and a converter layer, wherein the substrate has an upper side and a lower side facing away from the upper side, and the LEDs are arranged on the upper side of the substrate, the converter layer covers the LEDs, the upper side and the lower side of the substrate, and the converter layer has a first sublayer on the upper side and a second sublayer on the lower side, and the converter layer is configured to obtain an improved radiation profile of the filament such that the converter layer has a varying vertical layer thickness along a lateral direction, and/or the first sublayer and the second sublayer differ from one another in their geometry and/or material composition.

Various embodiments may relate to a semiconductor retrofit bulb, in particular a retrofit festoon bulb, having connecting elements that are arranged on two sides. The semiconductor retrofit bulb may include at least a tubular cooling body having at least one outer face support surface, wherein there is arranged on the support surface at least one semiconductor light source, in particular a light diode, a driver housing that is introduced into a hollow space of the tubular cooling body. At least one flow channel is provided between the driver housing and the cooling body.

Semiconductor retrofit lamp having connecting elements arranged on two sides

A semiconductor light-emitting device is disclosed. The device includes a plurality of semiconductor light sources and a driver with no galvanic isolation for operating the semiconductor light sources wherein the semiconductor light sources may be divided into at least two carriers, the carriers are applied on an electrically conductive substrate, and the driver, and current-conducting regions also provided on a surface of the carriers, are electrically insulated from the substrate.

Semiconductor light device having a galvanic non-insulated driver

A method for producing a plurality of LED illumination devices which each emit light having an average value of a first photometric parameter including producing a plurality of LED chips which emit light of the same color; measuring values of the first photometric parameter of the LED chips; combining the LED chips to form groups of at least two LED chips which have different values of the first photometric parameter such that differences in the average values of all the LED illumination devices are imperceptible to the human eye; and equipping a respective LED illumination device with a group of LED chips.

Method for producing a plurality of LED illumination devices and a plurality of LED chipsets for illumination devices, and LED illumination device

A lighting device includes at least one space for receiving at least one functional element, the space being connected to at least one semipermeable transmission element and otherwise closed off in a sealed manner and the at least one transmission element being transmissive to air in both directions and non-transmissive to water, at least in the direction of the space.

Lighting apparatus

A motor vehicle headlight element is specified which has at least one light-emitting diode and at least one control apparatus. The control apparatus is suitable for processing a signal which is dependent on a measurement variable and for applying a current, corresponding to the signal, to the light-emitting diode. The control apparatus and the light-emitting diode are arranged on a common mount.

Motor vehicle headlight element

Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight.

Lighting device, automotive headlights and method for producing a lighting device

A lamp with a base () and at least one light emitting semiconductor component () is disclosed. The base has at least two external electrical connections () and at least two electrical connection parts (). The electrical connection parts are provided for electrically connecting the light emitting semiconductor component and are respectively connected to one of the external electrical connections in an electrically conducting manner. The light emitting semiconductor component is mounted on a carrier () and is electrically connected to at least two electrical contacting elements (), which are arranged and/or fixed on the carrier. Each of the electrical contacting elements is directly adjacent to one of the electrical connection parts and connected to it in an electrically conducting manner.

Lamp comprising a base and at least one light-emitting semiconductor component

LED lamp

A motor vehicle headlight element is specified which has at least one light-emitting diode and at least one control apparatus. The control apparatus is suitable for processing a signal which is dependent on a measurement variable and for applying a current corresponding to the signal, to the light-emitting diode. The control apparatus and the light-emitting diode are arranged on a common mount.

A motor-vehicle headlight is specified, having at least one light-emitting diode, and an apparatus for controllable manipulation of the beam path of the electromagnetic radiation emitted from the light-emitting diode. The described motor-vehicle headlight is distinguished inter alia by a particularly variable emission characteristic.

Motor-vehicle headlight

Growing community of inventors

Bad Abbach, Germany

Markus Hofmann