Koninklijke Philips Corporation N.v.

Signify Holding B.v.

Philips Lighting Holding B.v.

Lumileds LLC

Lumileds Holding B.v.

Lumencor, Inc.

Dirk Kornelis Gerhardus De Boer

Rifat Ata Mustafa Hikmet

Ties Van Bommel

Marcus Antonius Verschuuren

Mark Thomas Johnson

Hugo Johan Cornelissen

Christoph Gerard August Hoelen

Hendrik Johannes Boudewijn Jagt

Dominique Maria Bruls

Ludovicus Johannes Lambertus Haenen

Alwin Rogier Martijn Verschueren

Gerrit Oversluizen

Sander Jurgen Roosendaal

Johannes Martinus Jansen

Cornelis Reinder Ronda

Dirk Jan Broer

Simon Eme Kadijk

Joris Jan Vrehen

Marcellinus Petrus Carolus Michael Krijn

Martin Jacobus Johan Jak

Roelof Koole

Masahiro Yoshiga

Michiel Adriaanszoon Klompenhouwer

Evert Jan Van Loenen

Yun Gang Li

Hendrik Jan Eggink

Erno Hermanus Antonius Langendijk

Gerben Johan Hekstra

Jianghong Yu

Manuela Lunz

Lingli Wang

Leo Jan Velthoven

Gerard Cnossen

Jaime Gomez Rivas

Leendert Van Der Tempel

Marcellinus P C M Krijn

Thomas Caspar Kraan

Gabriel Sebastian Lozano Barbero

Daniël Anton Benoy

Gerardus Everardus Marie Hannen

Jacobus Gerardus Boerekamp

Marius Gabriel Ivan

Cornelis Johannes Maria Denissen

Albert Bijlsma

Jeffrey Alan Chapman

Armanda Cinderella Nieuwkerk

Wilhelmina Maria Hardeman

Dmitri Anatolievich Chestakov

Johannes Albertus Matthijs Maria Van Haaren

Abraham Vamattathil Scaria

Thomas Casper Kraan

Said Rahimzadeh Kalaleh Rodriguez

Ke Guo

Anne Souren

Stefan Willi Julius Gruhlke

Jaime Gómez Rivas

Daniel Anton Benoy

Masakazu Fukumoto

Adriaan Yde Raap

Davy Louwers

Raymond Jean Louis Van Kooyk

Gerald Frederik Belder

Cornelis Reinder M Ronda

Rahimzadeh Kalaleh Rodriguez

Jamie Gómez Rivas

Gabriel Lozano

Sunsuke Murai

Jaime GÓMEZ Rivas

Silke Luzia Diedenhofen

A light generating system () comprising a plurality of light sources () configured to provide light source light (), an elongated luminescent body () having a first face () and a second face () defining a length (L) of the elongated luminescent body (), the elongated luminescent body comprising one or more side faces (), the elongated luminescent body () comprising a radiation input face () and the second face () comprising a first radiation exit window (), wherein the radiation input face () is configured in a light receiving relationship with the plurality of light sources (), wherein the elongated luminescent body () comprises luminescent material () configured to convert at least part of the light source light () into luminescent material light (), and a beam shaping optical element ().

Light generating device with a beam shaping optical element

The invention provides an elongated luminescent body () comprising an elongated support () and a coating layer (), wherein the elongated luminescent body () further comprises a body axis (BA), and a length parameter P of a body dimension perpendicular to the body axis (BA), wherein the length parameter P is selected from height (H), width (W) and diameter (D), wherein: &#x2014;the elongated support () comprises a support material (), a support material index of refraction n1, wherein the support material index of refraction n1 is at least 1.4, a support surface (), and a support length (L); &#x2014;the coating layer () is configured on at least part of the support surface () over at least part of the support length (L), wherein the coating layer () comprises a coating layer material (), a coating layer index of refraction n2, wherein coating layer index of refraction n2 is at least 1.4, and a coating layer thickness (d), wherein the coating layer material () has a composition different from the support material (), wherein the coating layer material () comprises a luminescent material () configured to absorb one or more of UV radiation and visible light, and to convert into luminescent material light () having one or more wavelengths in one or more of the visible and the infrared; and &#x2014;the support material () is transmissive for the luminescent material light (), and (i) &#x2212;0.2&#x2264;n1&#x2212;n2&#x2264;0.2 and (ii) d/P&#x2264;0.25 apply.

Light generating system comprising an elongated luminescent body

The invention provides a lighting device () comprising (i) a plurality of sets () of each one or more light sources () configured to provide light source light (), and (ii) a plurality of luminescent elements (), each luminescent element () comprising an elongated luminescent body () having a radiation input face () for receipt of the light source light (), each luminescent element () comprising a luminescent material () for conversion of at least part of the light source light () into luminescent material light (), and each luminescent element () have an luminescent element exit window () for the luminescent material light (); wherein the luminescent elements () are configured in a configuration wherein an average distance (d) between neighboring luminescent bodies () is larger than a shortest luminescent element exit window distance (d) between the neighboring luminescent element exit windows (), thereby defining an interspace () between the neighboring luminescent bodies ().

Pixelated high brightness light engine

A lighting system includes a plurality of light sources; an elongated luminescent body defining a length (L) and a height or diameter (H), and having a light input face, a light output face, and at least one side face bridging the height or diameter (H); a garnet type ABOluminescent material including trivalent cerium, provided in the elongated luminescent body with a height dependent concentration range defined by a minimum concentration y=0.036*xand a maximum concentration y=0.17*x, where y is the trivalent cerium concentration in % relative to the A element, and x is the height (H) in mm; at least one heat transfer elements in thermal contact with the elongated luminescent body; and a reflector provided opposite the light sources on the elongated luminescent body. The garnet type ABOluminescent material converts at least part of light from the light sources into converted light.

Lighting system with light guiding body having trivalent cerium luminescent material

The invention provides a lighting device () comprising: &#x2014;one or more light sources () configured to provide light source light (); &#x2014;a luminescent element () comprising an elongated light transmissive body (); the elongated light transmissive body () comprising a luminescent material () configured to convert at least part of light source light () received at one or more radiation input faces () into luminescent material light (), and the luminescent element () configured to couple at least part of the luminescent material light () out at the first radiation exit window () as converter light (); wherein the light transmissive body () has a first index of refraction n1; &#x2014;a beam shaping optical element () optically coupled with the first radiation exit window (), the beam shaping optical element comprising a radiation entrance window () configured to receive at least part of the converter light (); wherein the beam shaping optical element () has a second index of refraction n2; wherein: &#x2212;0.75&#x2264;n1/n2&#x2264;1.25; 15 &#x2014;the beam shaping optical element () or an optical connector () configured between the elongated light transmissive body () and the beam shaping optical element () comprise a glass material (), wherein the glass material () is based on at least one or more of bismuth oxide, boron oxide, potassium oxide, lithium oxide, phosphorus oxide, lead oxide, tin oxide, antimony oxide, tellurium oxide, silicon dioxide, and vanadium oxide.

Light concentrator module with high refractive index interconnect

The invention provides a lighting device () comprising a luminescent element () comprising an elongated light transmissive body (), the elongated light transmissive body () comprising a side face (), wherein the elongated light transmissive body () comprises a luminescent material () configured to convert at least part of a light source light () selected from one or more of the UV, visible light, and IR received by the elongated light transmissive body () into luminescent material radiation (). The invention further provides such luminescent element per se.

Light concentrator module

The invention provides a lighting device () comprising a plurality of light sources () configured to generate light source light (), a plurality of light converter elements (), wherein each light converter element () is radiationally coupled with one or more light sources (), wherein the light sources () are configured at a non-zero distance from the light converter elements (), wherein the light converter elements () are configured to convert at least part of the light source light into light converter light (), the lighting device () further comprising a plurality of compound parabolic concentrators () configured in an array (), each compound parabolic concentrator () having a first end () and a second end (), and having a shape tapering from the first end () to the second end (), wherein the light converter elements () are configured at the second ends () of the compound parabolic concentrators (), wherein the light converter elements () and the compound parabolic concentrators () are configured to provide light converter light () emanating from the first ends () of the compound parabolic concentrators (), and wherein the light converter elements () are in thermal contact with a heat sink ().

Compound parabolic collimator array for high intensity lighting

A light emitting device () comprising a luminescent element () comprising a first face () and a second face (), the first face comprising a light input surface and one of the first face and the second face comprising a light exit surface, the luminescent element () being adapted for receiving first light () with a first spectral distribution emitted by at least one laser light source () at the light input surface, converting at least a part of the first light with the first spectral distribution to second light () with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling at least a part of the second light with the second spectral distribution out of the light exit surface, and a heat sink element () arranged to be in thermal contact with at least a part of the luminescent element () extending between the first face () and the second face (), wherein the first face () comprises a cross-sectional area A and the luminescent element () further comprises a length L being defined as the shortest distance between the first face and the second face and a characteristic length B of the cross sectional area A, the characteristic length B being defined as the square root of the cross sectional area A, and wherein, and wherein the length L and the characteristic length B of the cross sectional area A are chosen such that they satisfy any one of the relations L/B&#x2265;2*E/44(W/mm) for &#x3bb;&#x3c;6 W/mK, L/B&#x2265;1.3*E/44(W/mm) for 6 W/mK&#x2264;&#x3bb;&#x2264;8 W/mK, and L/B&#x2265;0.85*E/44(W/mm) for 8 W/mK&#x3c;&#x3bb;, where Eis the irradiance of the at least one laser light sources measured in W/mmand &#x3bb;is the thermal heat coefficient of the luminescent element at room temperature.

Light emitting device

An illumination device comprising a plurality of solid state light sources and a concentrating wave length converter arranged to inject light from said light sources through at least one entrance surface and to extract wave length converted light from at least one exit surface, comprising a structured layer provided on said exit surface, said structured layer having a structure period less than 5 micrometers, thereby enabling out-coupling through the exit surface by a combination of refraction and diffraction. In a situation where the angle of incidence on a surface is within a limited range, a combination of refraction and diffraction may provide a superior out-coupling from that surface.

Light source with diffractive outcoupling

There is provided an illumination device () comprising: a periodic plasmonic antenna array (), comprising a plurality of individual antenna elements () arranged in an antenna array plane, the plasmonic antenna array being configured to support surface lattice resonances at a first wavelength, arising from diffractive coupling of localized surface plasmon resonances in the individual antenna elements; a photon emitter () configured to emit photons at the first wavelength, the photon emitter being arranged in close proximity of the plasmonic antenna array such that at least a portion of the emitted photons are emitted by a coupled system comprising said photon emitter and said plasmonic antenna array, wherein the plasmonic antenna array is configured to comprise plasmon resonance modes being out-of plane asymmetric, such that light emitted from the plasmonic antenna array has an anisotropic angle distribution.

Solid state illumination device having plasmonic antenna array for anisotropic emission

A light emitting device () comprising a light source () having a light exit surface, a wavelength converter () configured to convert light from a first wavelength to a second wavelength, said wavelength converter having a light exit surface () and a light entrance surface, a heat sink () and an optical coupling element (), arranged in thermal connection with said heat sink () and said wavelength converter (), wherein said optical coupling element () is selected to have a refractive index lower than a refractive index of said wavelength converter (). The optical coupling element () will allow for an efficient heat transfer from the wavelength converter () to the heat sink () while avoiding loss of light from unwanted surfaces.

Light emitting device comprising wavelength converter

The invention provides a lighting device comprising a light source and a light converter, wherein the light source is configured to provide light source light, wherein the light converter comprises a donor luminescent material able to convert at least part of the first light source light into donor light, and a acceptor luminescent material, wherein the donor luminescent material and acceptor luminescent material are configured as donor-acceptor luminescent materials which, upon excitation of the donor luminescent material by the light source light provide acceptor light having an acceptor light spectral distribution different from a donor light spectral distribution of the donor light, wherein the light converter further comprises a periodic plasmonic antenna array configured to enhance generation of said donor light, and wherein the lighting device is configured to provide lighting device light comprising said donor light and said acceptor light.

Plasmonic white light source based on FRET coupled emitters

Illumination structure () and illumination devices comprising such illumination structure are described. The illumination structure comprises a wavelength conversion layer () configured for receiving light of at least a first wavelength () and converting said received light into light of at least a second wavelength; and, an array of nanoparticles () arranged in a plane in close proximity to said wavelength conversion layer, at least part of said array forming a lattice characterized by at least one lattice period, wherein said lattice period is selected such that in operation: localized resonances of said nanoparticles are diffractively coupled into collective resonant modes at said second wavelength in said wavelength conversion layer (); and, a sideward emitting radiation pattern is generated by said illumination structure that comprises field intensities in one or more directions of large inclination angle &#x398;() with respect to said array plane that are larger than field intensities in one or more directions of small inclination angle.

Sideward emitting luminescent structures and illumination device comprising such luminescent structures

A light emitting device comprising at least one first light source () adapted for, in operation, emitting first light () with a first spectral distribution, a first light guide () comprising a first light input surface (), a first light exit surface () and at least one first further surface (), the first light guide being adapted for receiving the first light with the first spectral distribution at the first light input surface, guiding the first light to the first light exit surface and coupling the first light with the first spectral distribution out of the first light exit surface, at least one luminescent element () arranged on the first light exit surface of the first light guide, the at least one luminescent element comprising a second light input surface (), a second light exit surface () and at least one light exit surface () and at least one second further surface (), the luminescent element spectral distribution at the second light input surface, converting at least a part of the first light with the first spectral distribution to second light () with a second spectral distribution, guiding the second light to the second light exit surface and coupling the second light with the second spectral distribution out of the second light exit surface, the light emitting device further comprising at least one first heat sink element () arranged at or on a surface of the luminescent element facing away from the second light input surface ().

Light emitting device with spectral conversion element

A light emitting device () comprising a light source () adapted for, in operation, emitting light () with a first spectral distribution, a first light guide () comprising a first light input surface () and a first light exit surface () arranged opposite to one another, and further comprising an end surface () extending perpendicular with respect to the first light input surface (), and a second light guide () comprising a second light input surface () and a second light exit surface () extending perpendicular with respect to one another. The first light guide () is adapted for receiving the light with the first spectral distribution from the light source () at the first light input surface (), guiding the light with the first spectral distribution to the first light exit surface () and to the end surface () and coupling a part of the light with the first spectral distribution out of the first light exit surface () into the second light guide () and coupling another part of the light with the first spectral distribution out of the end surface (). The second light guide () is adapted for receiving light with the first spectral distribution coupled out of the first light guide () at the second light input surface (), guiding the light to the second light exit surface (), converting at least a part of the light () with the first spectral distribution to light () with a second spectral distribution and coupling the light with the second spectral distribution out of the second light exit surface ().

Growing community of inventors

Eindhoven, Netherlands

Dirk Kornelis Gerhardus De Boer