Ledvance Gmbh

Osram Ag

Osram Gmbh

Osram Gesellschaft MIT Beschraenkter Haftung

Osram Gesellschaft MIT Beschrankter Haftung

Andreas Kloss

Krister Bergenek

Steffen Walter

Frank Vollkommer

Andreas Dobner

Tobias D Schmidt

Klaus Stockwald

Carsten Schuh

Jürgen Gräf

Joachim Mühlschlegel

Florian Bösl

Ute Liepold

Gia Khanh Pham

Thorsten Steinkopff

Philipp Erhard

Ulrich Henger

Meik Weckbecker

Philip Clissold Howell

Juergen Graef

Wolfgang Poeppel

Raquel De La Pena Alonso

Bernhard Schalk

Stephan Finger

The present disclosure relates to a luminous means having a cap and an outer bulb in which LEDs are arranged on a flat multilayer substrate which is constructed, at least in regions, from at least two substrate layers between two outside surfaces which are opposite one another, wherein the at least two substrate layers are formed from a flat substrate sheet which is laid back on itself, and wherein the LEDs are mounted on a side surface of the substrate sheet, which at least proportionally forms the two outside surfaces of the multilayer substrate in each case on account of the substrate sheet being laid back, in such a manner that at least one of the LEDs is mounted in each case on both of the two outside surfaces of the multilayer substrate.

Luminous means having LEDs

A light fixture comprises two cooling elements and a plurality of semiconductor lighting elements, wherein each cooling element has a central portion and a wall portion which extends away from the central portion and at least partially surrounds an interior of a cooling element. The two cooling elements are arranged opposite one another. An annular opening for exchange of air with the environment is present between the two cooling elements. The semiconductor lighting elements are arranged on the outside of the wall portion of the cooling elements. A corresponding cooling element has two or more vanes, wherein all vanes are connected to one another by means of a central connecting element. Each vane extends in an axial direction and in a circumferential direction and has a curvature in the axial direction and preferably a curvature in the circumferential direction.

LED retrofit lamp and cooling element for a LED retrofit lamp

The present invention relates to a lighting means comprising at least two LEDs mounted on opposite sides of a flat printed circuit board, said printed circuit board being combined with a reflector which is free of LEDs, a part of the light emitted by each LED being reflected by the reflector to homogenize the light distribution generated by the lighting means, and specifically in each case with a directional component parallel to a surface direction of the flat printed circuit board.

Lighting means comprising LEDs

A luminous means is disclosed, the luminous means having LEDs on a substrate, an outer bulb in which the substrate having the LEDs is arranged, and a cap, wherein at least two partial surfaces of the substrate are folded out with respect to the remaining substrate around a bridge area in each case, via which the particular partial surface is connected to the remaining substrate, and are thus set obliquely with respect to the remaining substrate which is flat per se, wherein, for each side surface of the remaining substrate, which side surfaces are opposite one another with respect to a thickness direction of the remaining substrate, at least one partial surface is folded out in each case, and wherein at least one of the LEDs is arranged on each of the partial surfaces.

Luminous means having LEDs arranged on fold-out surfaces

The present invention relates to a luminous means comprising an enveloping bulb, a base, a first LED and a second LED, which are assembled on a planar printed circuit board, to be precise on the opposite side thereof in relation to a thickness direction, wherein a first diverging lens is mounted on the first side of the printed circuit board in a manner assigned to the first LED and a second diverging lens is mounted on the second side of the printed circuit board in a manner assigned to the second LED for the purposes of homogenizing the light distribution generated by the luminous means, and the light emitted by the respective LED has a widened luminous intensity distribution downstream of the respective diverging lens in comparison with upstream of the respective diverging lens.

An illuminant with at least two LEDs mounted on mutually opposite sides of a support plate and a reflection surface formed as a concave mirror, in which concave mirror the LEDs are arranged, wherein a housing part of the illuminant made of a transparent housing material is provided, which housing part at the same time forms an in relation to the main propagation direction lateral external surface of the illuminant and supports a reflecting layer forming the reflection surface at an internal surface opposite to the external surface.

Illuminant with LEDs

A bushing for a high-pressure discharge lamp, which is suitable for connecting an electrode in the interior of a ceramic discharge vessel to a supply lead in a gastight manner on the exterior of the discharge vessel, wherein the bushing is an electrically conductive ceramic composite consisting of a mixture of LaBand at least one second material from the group AlO, DyAlO, AlN, AlON and DyOis disclosed.

Ceramic bushing for a high-pressure discharge lamp

An electrode for a high-pressure discharge lamp may include a shaft and a head mounted thereon, wherein at least a section of the head includes ceramic material, wherein the ceramic material is a boride or carbide.

Ceramic electrode for a high-pressure discharge lamp

A high-voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is implemented as an LTCC component and is wound from at least two ceramic and at least two metal-containing layers, and the high-voltage pulse generator can be introduced into a cylindrical volume V=d2*&#x3c0;*3*d whose length is three times as long as the diameter of the volume, and the volume of the high-voltage pulse generator is greater than one-third of the cylindrical volume. Also disclosed is a high-pressure discharge lamp having a tubular outer piston, wherein the outer piston of the high-pressure discharge lamp has an aforesaid high-voltage pulse generator.

High-voltage pulse generator and high-pressure discharge lamp having a high-voltage pulse generator

A method for producing a ceramic spiral pulse generator is provided. The method may include providing a film composite comprising at least one ceramic green film and at least one metal layer; winding the film composite to form a spirally wound winding; laminating the winding; and sintering the laminated winding so as to create a spiral pulse generator.

Method for the production of a ceramic spiral pulse generator and ceramic spiral pulse generator

High pressure discharge lamp () with improved ignitability. A spiral pulse generator () that is directly mounted inside the outer piston () of the lamp is used for igniting the high pressure discharge lamp.

High-pressure discharge lamp with improved ignitability and high-voltage pulse generator

A spiral pulse generator is used to start the high-pressure discharge lamp, and is accommodated directly in the outer bulb of the lamp. The spiral pulse generator uses a material with a matched &#x2208; and &#x3bc;.

Growing community of inventors

Neubiberg, Germany

Andreas Kloss