Lumileds LLC

Koninklijke Philips Corporation N.v.

Marcus Jozef Henricus Kessels

Hans-Helmut Bechtel

Floris Maria Hermansz Crompvoets

Wouter Anthon Soer

Georg Henninger

Matthias Daniel Epmeier

Johannes Willem Herman Sillevis Smitt

Bernd Schoenfelder

Wilbert Heffels

Matthias Epmeier

Benno Spinger

Klaus Schoeller

Gennadi Tochadse

Frank Giese

Ralph Hubert Peters

Matthias Holtrup

Ton Theunissen

Aloke Gaur

A lighting device for mounting to an optical element includes a center ring, a heat sink, at least one housing part and at least one fan. The center ring has a first side and a second side and includes a mechanical interface for mechanically coupling the center ring to the optical element. The heat sink includes a lighting module mounting part for connection with at least one relative to the center ring with the entire at least one hollow structure over the first side of the lighting module and at least one hollow structure within the heat sink. The heat sink is positioned center ring. The at least one fan includes at least one blade and a driver. At least a portion of the at least one fan is contained within the at least one housing part with the at least one blade within the at least one hollow structure.

Lighting device for mounting to an optical element having a mounting ring, heat sink with a hollow structure and fan

A method for manufacturing light emitting elements is described and includes providing an un-coated light converting platelet. The un-coated light converting platelet has a top surface, a bottom surface, and side surfaces. A plurality of LED dies is provided. Side surfaces of the un-coated light converting platelet are coated with an at least partly reflective material to form a coated light converting platelet. The coated light converting platelet is separated into light converting tiles. An outline of the light converting tiles substantially corresponds to an outline of one of the plurality of LED dies. The light converting tiles and the plurality of LED dies are assembled to form light emitting elements.

Method for manufacturing light emitting elements, light emitting element, lighting device and automotive headlamp

A light source includes a first light emitting diode (LED) die configured to emit a first die color and a second LED die configured to emit a second die color, the first and second LED dies provided on a substrate. A first filling covering the first LED die, and includes a first phosphor to convert the first die color to a first illuminous color. A second filling covering the second LED die and extending to the first filling, and includes a second phosphor to convert the second die color to a second illuminous color that has a higher absorption energy than an illumination energy of the first illuminous color.

Multi-color LED light source with plurality of phosphor fillings

An automotive lighting device, a vehicle and a method for operating an automotive lighting device are described. To economically fulfil different lighting functions the automotive lighting device includes a first and a second lighting unit. The first lighting unit is disposed to emit a first light of a first colour. The second lighting unit is disposed to emit a second light of a second colour different from the first colour. A mixing space is arranged to merge the first light and the second light to a third light of a third colour. The third light is disposed to fulfil a first automotive lighting function and the second light is disposed to fulfil a second automotive lighting function. The first automotive lighting function requires a colour within a first colour range and the second automotive lighting function requires a colour within a second colour range which is different from the first colour range. The third colour is within the first colour range and the second colour is within the second colour range.

Lighting device for multiple automotive lighting functions

A lighting device () is provided comprising a support structure ('), the support structure (&#x2032;) comprising a first layer (&#x2032;) comprising metal and a second layer (&#x2032;) comprising metal; a central mounting face () formed by a portion of the first layer (&#x2032;) and by a portion of the second layer (&#x2032;); and at least one lateral mounting face () formed by a portion of one of the first layer (&#x2032;) and the second layer (&#x2032;); the lighting device () further comprising: at least one first light emitting element () arranged on the central mounting face () in contact with the first layer (&#x2032;) and in contact with the second layer (&#x2032;); at least one second light emitting element () arranged on the lateral mounting face () in contact with the one of the first layer (&#x2032;) and the second layer (&#x2032;) forming the lateral mounting face (), and separated from the other one of the first layer (&#x2032;) and the second layer (&#x2032;). Furthermore, a method for manufacturing such lighting device () and an automotive headlight comprising such lighting device () are provided.

Lighting device comprising support structure with improved thermal and optical properties

A light emitting device comprises a first group of one or more LEDs each configured to emit light having a blue color point in the 1931 CIE x,y Chromaticity Diagram, a second group of one or more LEDs each configured to emit light having a cyan or yellow color point in the 1931 CIE x,y Chromaticity Diagram, and a third group of one or more LEDs each configured to emit light having a red color point in the 1931 CIE x,y Chromaticity Diagram.

LED and phosphor combinations for high luminous efficacy lighting with superior color control

An LED lamp () for a vehicle light, the LED lamp () comprising a retrofit body () defining a longitudinal direction and being integrally configured as a heat sink, a conductive structure () being arranged in a cavity of the retrofit body () and at least one LED module () being electrically connected to the conductive structure (), the at least one LED module () comprising a substrate () and a diode semiconductor () applied onto the substrate (); a retrofit body (), a conductive structure (), and a method for manufacturing an LED lamp () for a vehicle.

Retrofit LED lamp for a vehicle light

The invention refers to a lighting device () comprising a light-emitting module () and an optical system. The optical system comprises a first reference face (), wherein the first reference face () is configured to accommodate the light-emitting module (); and at least one spring element () is provided for fixing the light-emitting module () to the optical system in a clamping position, wherein the at least one spring element () comprises a first spring section () configured to exert a spring force in a first spatial direction (f) towards the first reference face () in the clamping position, wherein the at least one spring element further comprises a second spring section () configured to exert a spring force towards a second spatial direction (f) in the clamping position, and wherein the second spatial direction (f) is different from the first spatial direction (f). The invention further relates to a method for fixing a light-emitting module () to an optical system.

Lighting device comprising spring element

A lighting device () is provided comprising a support structure () extending from a heat sink () and comprising a mounting section () with a central mounting face (), first and second lateral mounting faces (), and at least one heat dissipation member () extending from an outer face () of the support structure () comprising a respective one of the first and the second lateral mounting faces (), the at least one first heat dissipation member () comprising an inclined surface () which is inclined with respect to the respective one of the first and the second lateral mounting faces () such that a thickness of the at least one first heat dissipation member () increases along a direction () away from the mounting section ().

Retrofit lighting device with improved thermal properties

A light emitting device is provided comprising:

Light emitting device

A light emitting device () for illuminating a backlight device is provided. The device comprises an array () of light sources and at least one reflector () arranged along an edge of the array () of light sources. The array is arranged with alternating first () and second () light sources, the first light sources (a,a) emitting light of a first colour (G) and the second light sources () emitting light of a second colour (P). The combined intensity of at least one light source () arranged adjacent to the at least one reflector () and its virtual image in the reflector is about 80-120% of the average intensity of the light sources () of the same colour which are not arranged adjacent to the at least one reflector. The present invention further provides an edge lit or direct lit backlight device comprising such a light emitting device, the at least one reflector being at least one inner wall of the backlight device arranged along an edge of said array of light sources. A method of operating a light emitting device for illuminating a backlight device is also provided.

Light emitting device for backlight device and method of operating the light emitting device

A gas-discharge lamp () is described having two electrodes () that project into the discharge vessel () of the lamp. The lamp further comprises an outer envelope () that surrounds the discharge vessel (), with an airtight seal, while leaving an outer cavity () between itself and the discharge vessel () and that is filled with a gas at a pressure of not more than 1,000 mbar. In the outer cavity (), there is a single conductor, electrically connected to one of the electrodes, that is in direct contact with the gas filling in the cavity () to allow a high-voltage pulse to be applied for igniting a discharge between the conductor and its surroundings. Also described are a method of operating a gas-discharge lamp of this kind and various methods of producing gas-discharge lamps of this kind.

Growing community of inventors

Eindhoven, Netherlands

Marcus Jozef Henricus Kessels