Koninklijke Philips Corporation N.v.

Signify Holding B.v.

Philips Lighting Holding B.v.

Merck Patent Gmbh

Lumileds LLC

Koninklijke Philips Electronics N.v.

Rene Theodorus Wegh

Martinus Petrus Joseph Peeters

Johan Lub

Christoph Gerard August Hoelen

Rifat Ata Mustafa Hikmet

Jeroen Alphons Pikkemaat

Holger Gruell

Nicolaas Petrus Willard

Rudolf Mathias Johannes Nicolaas Lamerichs

Rene Jan Hendriks

Ties Van Bommel

Vincent Stefan David Gielen

Matthijs Hendrik Keuper

Martijn Henri Richard Lankhorst

Nicolaas Antonie Van Rijswijk

Peter Josef Schmidt

Johannes Petrus Maria Ansems

Hugo Johan Cornelissen

Lei Shi

Cornelis Reinder Ronda

Simon Greenfield

Thomas Juestel

Michael Graetzel

Olexandr Valentynovych Vdovin

Ramon Pascal Van Gorkom

Coen Theodorus Hubertus Fransiscus Liedenbaum

Mohammad Khaja Nazeeruddin

Eduard Johannes Meijer

Detlef Uwe Wiechert

Alison Linda May

Petrus Adrianus Josephus Holten

Joris Hubertus Antonius Hagelaar

Claus Feldmann

Robert Van Asselt

Marcellus Jacobus Johannes Van Der Lubbe

Xiaoqing Duan

Richard Harding

Tobias Richard Schaeffter

Giorgia Tordini

Jan Cornelis Kriege

Ludo Haenen

Henricus Mathijs Maria Creemers

Bart-Hendrik Huisman

Lars Rene Christian Waumans

Grigory Alexandrovich Onushkin

Josephus Paulus Augustinus Deeben

Gerardus Wilhelmus Gerbe Van Dreumel

Joost Peter Andre Vogels

Andries Meijerink

Gerardus Everardus Marie Hannen

Cornelia Titia Staats

Vincent Fabriek

Ciska Doornkamp

Martijn H R Lankhorst

Gerardus Arnoldus Rita Van Dijk

Chantal Sweegers

René Jan Hendriks

Steve Klink

Koert Oskam

Timothy Howard Rider

Nicolas Gerardus Antonius Peeters

Wilhelmus Peter Martinus Nijssen

Josephus P A Deeben

Willibrordus Hubertus Martinus Maria Van De Spijker

Andreas Martinus Theodorus Paulus Van Der Putten

George Hubert Borel

Jan Broere

Edward Allen Plummer

Luisa De Cola

Cedric Nicolas Klein

Anna Wilhelmina Wondergem-De Best

Paulus Alberts Van Hal

Anna Wilhelmina Maria Dergem-De Best

Brankica Jovanovic

Roger Cornelis Petrus Hoskens

Nibu Ampalathumkal George

Vicky Lammens

Johannes P Ansems

Christoph G Hoelen

Roger C Hoskens

Timothy H Rider

Christoph G A Hoelen

Matthijs H Keuper

Lars R C Waumans

Martinus P J Peeters

George H Borel

Johannes P M Ansems

Roger C P Hoskens

Vicky B Lammens

Coen T H F Liedenbaum

René J Hendriks

Rudolf M J N Lamerichs

A light generating system generating system light, comprising a first and second light generating devices, wherein: the first light generating device generates first device light, the first light generating device comprises (i) a first light source generating first light source light having a first dominant wavelength selected from the range of 470-500 nm, and (ii) a first luminescent material converting part of the first light source light into first luminescent material light; wherein the first device light comprises the first light source light and the first luminescent material light; the first device light has a first color point; the second light generating device generates second device light, the second light generating device comprises (i) a second light source generating second light source light having a second dominant wavelength, and (ii) a second luminescent material configured to convert at least part of the second light source light into second luminescent material light; wherein the second device light comprises the second luminescent material light; and wherein the second device light is white light having a second color point and a second correlated color temperature.

Melanopic light system using cyan pumped white LEDs

The invention provides a light generating device () configured to generate device light (), wherein the light generating device () comprises a first light source (), a first luminescent material (), a second light source () of second light source light (), and a second light source (), wherein: the first light source () is configured to generate blue first light source light () having a first peak wavelength &#x3bb;selected from the spectral wavelength range of 437-472 nm, wherein the first light source () is a first laser light source (); the first luminescent material () is configured to convert at least part of the first light source light () into first luminescent material light () having an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein the first luminescent material () comprises a luminescent material of the type ABO:Ce, wherein A comprises one or more of Y, La, Gd, Tb and Lu, especially (at least) one or more of Y, Gd, Tb and Lu, and wherein B comprises one or more of Al, Ga, In and Sc; the second light source () of second light source light () is configured to provide the second light source light () having an emission band having a dominant wavelength or peak wavelength in the spectral wavelength range of 580-610 nm; the second light source () is configured to generate red second light source light () having a second peak wavelength &#x3bb;selected from the spectral wavelength range of 630-670 nm, wherein the second light source () is a second laser light source (); the light generating device () is configured to provide in a first operational mode white device light () comprising the first light source light (), the first luminescent material light (), the second light source light (), and the second light source light (), with a correlated color temperature selected from the range of 2000-3150 K and a color rendering index (CRI) of at least 80.

High intensity light source with high CRI and R9

A panel module (), comprising a first frame () arranged in a first plane (P), and at least one optical element () elongating along the first plane. The first frame is at least partially hollow and arranged to hold at least a peripheral portion of the at least one optical element. The panel module further comprises a lighting arrangement () comprising at least one light-emitting diode, wherein the lighting arrangement is arranged within the first frame and at an edge portion of the at least one optical element. The panel further comprises a driver unit () coupled to the lighting arrangement and configured to supply power thereto. The first frame comprises a first space () provided behind the at least one optical element in a direction (D) perpendicular to the first plane, wherein the driver unit is arranged within the first space.

Panel module and method for obtaining the same

The invention provides alighting device () comprising a solid state light source () configured to generate light source light () and a converter element () configured to convert at least part of the light source light () into converter element light (), wherein the converter element () comprises a polymeric host matrix element () hosting a particulate first luminescent material () of the type MAXdoped with tetravalent manganese, wherein M comprises an alkaline cation, wherein A comprises a tetravalent cation, and wherein X comprises a monovalent anion, at least comprising fluorine (F), wherein the particulate first luminescent material () is available in the polymeric host matrix element () with an average weight percentage x averaged over the polymeric host matrix element (), wherein the polymeric host matrix element () has a first outer face (), wherein an outer layer volume defined by at least part of the first outer face () and a first distance (d) from said first outer face () hosts the particulate first luminescent material () with a first local weight percentage y averaged over the outer layer volume with a ratio of the first local weight percentage y over the averaged weight percentage x of y/x&#x2264;0.1, and wherein the first distance (d) is at least 10 &#x3bc;m.

LED light source with fluoride phosphor

The invention provides a light generating device () configured to generate in a first control mode device light (), wherein the light generating device () comprises (i) a first source () of first light (), and (ii) a second source () of second light (), different from the first light (), wherein the second light () comprises cyan-like light having a wavelength selected from the range of 470-520 nm, wherein the device light () comprises the first light () and the second light (), and wherein in the first control mode the first light () is white light and the device light () is white light enriched with cyan-like light.

Cyan enriched white light

The invention provides a lighting device () configured to provide lighting device light (), the lighting device () comprising a solid state light source () configured to provide blue light () having a peak wavelength (&#x3bb;) selected from the range of 430-455 nm, a first luminescent material () configured to convert part of the blue light () into first luminescent material light () and a second luminescent material () configured to convert part of one or more of the blue light () and the first luminescent material light () into second luminescent material light (), wherein the solid state light source (), the first luminescent material (), and the second luminescent material () are selected to provide at a first setting of the lighting device () white lighting device light () having a CRI of at least 90, a Rvalue of at least 70, and a Rvalue of at maximum 465 nm, wherein the Rvalue is defined as a first wavelength (&#x3bb;) in a spectral distribution of the white lighting device light () at the first setting, wherein the first wavelength (&#x3bb;) is a wavelength closest to the peak wavelength (&#x3bb;) but at a longer wavelength than the peak wavelength (&#x3bb;) of the blue light () where the peak intensity (I) is 50% of the intensity (I) at the peak wavelength (&#x3bb;).

Warm white LED spectrum especially for retail applications

A lighting module assembly () comprising a stack of optical elements (), a plurality of elongated arms () forming a frame () for supporting the stack of optical elements (), at least one arm () having a cavity () extending in an elongation direction of the arm (), and at least one lighting element (). The cavity () is arranged for receiving the at least one lighting element () and for directing the light () of the lighting element (), in use, to the stack (), and each elongated arm () is formed by a first elongated arm part (). The stack () comprises a diffuser (), a light guide plate (), and a reflector (). At least one first elongated arm parts () is integrally formed with at least one of the diffuser (), and the light guide plate ().

Lighting module assembly

The invention provides a lighting device () comprising a plurality of light sources (), a light guide plate (), a rim (), and an IR sensor (), wherein: (i) the light sources () are configured to provide light source light (), and wherein the light sources () are configured in an edge-lighting configuration with the light guide plate (); (ii) the light guide plate () comprises a circumferential edge () of which at least part is configured as light incoupling face for the light source light (), and a first face () of which at least part is configured as light outcoupling face; (iii) the rim () comprises the plurality of light sources () and the IR sensor (); and (iv) the IR sensor () is configured to sense IR radiation () via the light guide plate ().

Integrated IR receiver in side-lit panels

A coated luminescent particle, a luminescent converter element, a light source, a luminaire and a method of manufacturing coating luminescent particles are provided. The coated luminescent particlecomprises a luminescent particle, a first coating layerand a second coating layer. The luminescent particlecomprises luminescent material for absorbing light in a first spectral range and for converting the absorbed light towards light of a second spectral range. The luminescent material is sensitive for water. The first coating layerforms a first barrier for water and comprises a metal oxide or a nitride, phosphide, sulfide based coating. The second coating layerforms a second barrier for water and comprises a silicon based polymer or comprises a continuous layer of one of the materials AlPO, SiO, AlO, and LaPO. The first coating layerand the second coating layerare light transmitting. The first coating layerencapsulates the luminescent particle and the second coating layerencapsulates the luminescent particlewith the first coating layer

Coated luminescent particle, a luminescent converter element, a light source, a luminaire and a method of manufacturing a coated luminescent particle

A wavelength converting element () comprising a polymeric carrier material comprising a first wavelength converting material adapted to convert light of a first wavelength to light of a second wavelength, wherein the oxygen diffusion coefficient (D) of the polymeric carrier material is 8&#xd7;10cm/s or less at 25&#xb0; C. A prolonged lifetime of the wavelength converting material is achieved by selecting a polymeric carrier material with an oxygen diffusion coefficient (D) at 8&#xd7;10cm/s or less at 25&#xb0; C.

Wavelength converting element

The invention relates to a luminescent converter () for a phosphor-enhanced light source (). The luminescent converter comprises a first luminescent material () configured for absorbing at least a part of excitation light (hv) emitted by a light emitter () of the phosphor-enhanced light source, and for converting at least a part of the absorbed excitation light into first emission light (hv) comprising a longer wavelength compared to the excitation light. The luminescent converter further comprising a second luminescent material () comprising organic luminescent material () and configured for absorbing at least a part of the first emission light emitted by the first luminescent material, and for converting at least a part of the absorbed first emission light into second emission light (hv) having a longer wavelength compared to the first emission light. An effect of the luminescent converter according to the invention is that the two-step light conversion according to the invention generates a relatively small Stokes shift of the light emitted by the organic luminescent material. The inventors have found that by reducing the Stokes shift of the organic luminescent material, the width of the spectrum of the second emission light is limited to reduce an infrared part in the emission spectrum. As such, the efficiency is improved.

Luminescent converter for a phosphor-enhanced light source

The invention provides a light-emitting arrangement () comprising a light source () adapted to emit light of a first wavelength, and a wavelength converting member () arranged to receive light of said first wavelength and adapted to convert at least part of the light of said first wavelength to light of a second wavelength, said wavelength converting member comprising i) a carrier polymeric material comprising a polyester backbone comprising an aromatic moiety, and ii) at least one wavelength converting material of a specified general formula. The perylene derived compounds have been found to have excellent stability when incorporated into said matrix material.

Light-emitting arrangement with organic phosphor

The invention relates to an illumination system (), to a remote phosphor layer (), to a scattering layer (), to a luminaire (), to a display device () and to a method of at least partially correcting a light emission characteristic of at least one light source () in the illumination system. The illumination system comprises an array of light sources () and a remote phosphor layer and/or a scattering layer arranged between the array of light sources and a light output window () for emitting the light from the light sources. At least one light source of the array of light sources comprises a light emission characteristic different from the other light sources of the array of light sources. The luminescent material () is distributed across the remote phosphor layer and/or the scattering structures () and/or scattering material () are distributed across the scattering layer for compensating at least partially the difference in light emission characteristic of the at least one light source. The effect of the illumination system according to the invention is that the deviation of the at least one light source can be compensated, and as such, binning of light sources may be omitted.

Illumination system with remote phosphor layer and/or scattering layer

The invention relates to a light source () comprising a light emitter () arranged inside a translucent outer envelope (). The light emitter comprising a light emitting device () and comprising a translucent inner envelope () at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (d) of the translucent inner envelope is smaller than a diameter (d) of the translucent outer envelope. The translucent outer envelope is connected to a base () not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope. The connection point is a light transmitting part of the translucent outer envelope at an interface between the translucent outer envelope and the base at a furthest distance from a center (M) of the translucent outer envelope.

Light source comprising a light emitter arranged inside a translucent outer envelope

Growing community of inventors

Eindhoven, Netherlands

Rene Theodorus Wegh