Osram Gesellschaft MIT Beschraenkter Haftung

Osram Ag

Osram Gesellschaft MIT Beschrankter Haftung

Osram Gmbh

Osram Opto Semiconductors Gmbh

Osram Sylvania Inc.

Osram Beteilungsverwaltung Gmbh

Moulded Optics Gmbh

Ralf Vollmer

Thomas Reiners

Peter Helbig

Peter Frey

Gerhard Behr

Alois Biebl

Moritz Engl

Markus Hofmann

Joachim Reill

Rainer Huber

Günther Hirschmann

Heinz Haas

Stefan Hackenbuchner

Charles M Coushaine

Thomas Tessnow

Michael D Tucker

Oliver Hering

Alexander Wilm

Juergen Hager

Ralph J Johnson

Angela Hohl-AbiChedid

William E Meyer

Angela Hohl-Abichedid

Martin Pfeil

A circuit for actuating a lighting module, comprising at least two semiconductor light-emitting elements (D, D) which are connected in series in a first operating mode; wherein, in the event of a predetermined threshold value for an operating voltage () being undershot, a second operating mode is detectable (); and wherein, in the second operating mode, the at least two semiconductor light-emitting elements (D, D) are alternately actuable.

Actuation of a lighting module

A light-emitting device may include: one first light source group having at least one light source and one second light source group having at least one light source, at least one reflector, which is configured and arranged for the purpose of reflecting light emitted by the first light source group to an optical plane, and at least one light conducting element, which is configured and arranged for the purpose of conducting light emitted by the second light source group to the optical plane, wherein the light conducting element is configured and arranged as an aperture for light reflected by the at least one reflector.

Light-emitting device having multiple light source groups

The holding frame is equipped for holding at least one optical element, the holding frame consisting of an opaque material.

Holding frame for an optical element

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

An illumination unit for vehicle headlights may include a light-emitting diode device, a housing and an assembly board on which components of an operating circuit for operating the light-emitting diode device are arranged, wherein the housing and the assembly board define an interior space, wherein the assembly board has at least one electrically conductive inner layer that is connected to a ground reference potential of the operating circuit and on its surface the assembly board has at least one electrical contact surface which is contacted with at least one electrically conductive inner layer, and the housing has an electromagnetic shielding structure configured to provide electromagnetic shielding of the interior space, wherein the electromagnetic shielding structure is connected to the at least one electrical contact surface.

Illumination unit for vehicle headlights and vehicle headlights

A lighting apparatus may include an electrically conductive housing, in whose interior at least one light source and at least one electromagnetic radiation-emitting circuit component configured to operate the at least one light source are arranged; and an electrically conductive cover configured to cover the at least one circuit component; wherein the cover and the housing are electrically connected to one another.

Lighting apparatus

A retaining frame () having at least one optical element () secured thereto by injection molding, with the at least one optical element () being embodied for beam shaping at least by means of total internal reflection and/or diffraction.

Retaining frame having at least one optical element

An illumination unit having at least one light emitting diode chip and a housing () that at least partially surrounds the at least one light emitting diode chip (), the housing () having fastening means for mounting the illumination unit in a luminaire, wherein the fastening means comprise at least one projection or one depression () that is arranged on the housing () and, in order to mount the illumination unit in the luminaire, cooperates with a counterpart (), coordinated in an accurately fitting fashion therewith, on a luminaire part () of the luminaire in such a way that the at least one projection or the at least one depression () and the counterpart () interlock in an accurately fitting fashion.

Illumination unit for vehicle headlights, and vehicle headlight

A luminous module is specified comprising luminous units and a carrier body, wherein the luminous units are connected and/or contact-connected in at least two planes and/or orientations on the carrier body with conductor tracks. A method for producing the luminous module is furthermore specified.

Luminous module and method for producing it

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 solid-state light source () comprising a plurality of LED units () arrayed to emit light generally about an axis (). Each of the LED units () can comprise a number of LEDs, for example, up to five. They may all emit in a single color or multiple colors can be combined for a specific effect. A light transmissive light guide () is associated with the LED units () and has a plurality of input widows (). Each LED unit () faces a respective input window () and each window () transversely intercepts the axis () and receives light from the LED units (). The input windows () lead to a common output window () that is axially aligned with the input windows (). The light guide () has smooth sidewalls () that extend between the input windows () and the output window ().

LED headlamp system

A motor vehicle headlight module having at least two lighting units () is specified. Here, each lighting unit () comprises at least one light-emitting diode chip (). Different lighting units () are provided here for different lighting functions. Furthermore, the motor vehicle headlight module has a common heat sink () for the lighting units, to which heat sink the lighting units are thermally connected, and a common current-stabilizing electronic system () for supplying voltage to the lighting units.

Multifunctional motor vehicle headlight module, in particular for the front region of a motor vehicle

A lighting device includes at least one light-emitting diode and a cooling aggregate () for cooling the at least one light-emitting diode, wherein the at least one light-emitting diode is arranged on the cooling aggregate () and the cooling aggregate () is provided with at least one recess in which a mounting plate () equipped with electrical components is located. Also described is a vehicle headlight including at least one lighting device of the aforementioned kind.

Lighting device comprising at least one light-emitting diode and vehicle headlight

A motor vehicle headlight () comprises at least two modules () for light production, the radiation characteristics of at least one of the modules () being adjustable in a reference system associated with the headlight. Preferably, modules () of the headlight () have different radiation characteristics and the irradiation characteristics of at least two of the modules () overlap to form an adjustable radiation characteristic of the headlight ().

Motor vehicle headlight

A lighting device includes at least one light-emitting diode () and a cooling aggregate () for cooling the at least one light-emitting diode (), wherein the cooling aggregate () is provided with locking elements () adapted to form a bayonet catch with a fixing device () holding the lighting device. Preferably, at least one of the lighting devices is mounted as the light source in a vehicle headlight.

Growing community of inventors

Ulm, Germany

Ralf Vollmer