Signify Holding B.v.

Philips Lighting Holding B.v.

Koninklijke Philips Corporation N.v.

Philips Lumileds Lighting Company LLC

Lumileds Holding B.v.

Lumencor, Inc.

Jianghong Yu

Giovanni Cennini

Hugo Johan Cornelissen

Martinus Hermanus Wilhelmus Maria Van Delden

Hendrikus Hubertus Petrus Gommans

Leon Wilhelmus Godefridus Stofmeel

Marcellinus Petrus Carolus Michael Krijn

Daiyu Hayashi

Rifat Ata Mustafa Hikmet

Ties Van Bommel

Dirk Jan Broer

Simon Eme Kadijk

Christoph Gerard August Hoelen

Kenneth John Vampola

Dirk Kornelis Gerhardus De Boer

Hendrik Johannes Boudewijn Jagt

Ludovicus Johannes Lambertus Haenen

Georg Greuel

Durandus Kornelius Dijken

Manuela Lunz

Paul Dijkstra

Hans Kroes

Kamal Asadi

Daniël Anton Benoy

Marius Gabriel Ivan

Renatus Hendricus Maria Sanders

Genevieve Martin

Johannes Martinus Jansen

Roy Antoin Bastiaan Engelen

Abraham Vamattathil Scaria

Thomas Jüstel

Daniel Anton Benoy

Cornelis Reinder Reinder Ronda

Cornelis Reinder Ronda

Hendrik Johannes Jagt

Hugo Johan Comelissen

Nicolaas Joseph Martin Van Leth

Kamlesh Kumar

Arie Jan Hovestad

Michiel Van Der Meer

Kenneth Vampola

Thomas JÜSTEL

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 a vapor chamber unit (), a heat sink (), and a plurality of light sources (), wherein: the vapor chamber unit () comprises a vapor chamber () defined by at least a first plate () and a second plate () having an average plate distance (d), wherein the vapor chamber () comprises a first A chamber end () and a second chamber end () defining a chamber length (L), wherein the vapor chamber unit () comprises (i) a first external face () defined by at least part of the first plate (), wherein the first external face () is convex, and (ii) a second external face () defined by at least part of the second plate (); the heat sink () is thermally coupled to the vapor chamber unit (); and the light sources () are configured to generate light source light.

LED lighting device

A lighting system comprises a housing, an arrangement of UV-B LEDs in the housing and a fabric output screen which provides a UV-B exit surface. This provides UV-B light for an indoor application in order to replicate the health benefits of natural sunlight.

Vitamin D lighting system

A lighting device having a 3D-printed heat sink. The 3D-printed heat sink includes a stack of a core layer and at least one further layer stacked along a stack axis normal to the core layer. The core layer and the at least one further layer having a same polymer material each with a thermally conductive filler, wherein a concentration of the thermally conductive filler in the polymer material decreases, starting from the core layer, consecutively with each of the at least one further layer for improving resistance to mechanical failure and thermal conduction of said 3D-printed heat sink.

Lighting device, 3D-printed cooling element, and a method of producing a lighting device

Methods and apparatus are provided for ultraviolet (UV) water purification, comprising UV-C LED modules having improved light extraction efficiency. UV-C LED dies () are solidly coupled to associated translucent output windows (), such that light is transmitted directly from light-emitting surface(s) of the dies () to output window(s) () of the LED package&#x2014;without propagation across interstitial air gaps. Gas-to-solid (and solid-to-gas) light transition boundaries are thus eliminated, significantly reducing the amount of light lost through inter-medium boundary reflection, and thereby increasing efficiency of light extraction.

UV-C water purification device

The invention provides a lighting device () comprising a light source () configured to generate light source light () and a light converter element (), wherein the light converter element () comprises a light transmissive matrix (), wherein the light transmissive matrix () comprises: (i) a first luminescent material () configured to convert at least part of one or more of (a) the light source light () and (b) optionally a second luminescent material light () from an optional second luminescent material () into a first luminescent material light (); and (ii) a thermo-responsive liquid crystalline compound (); wherein the light transmissive matrix () is configured in thermal contact with the light source (), and wherein the lighting device () is further configured to provide lighting device light () comprising said light source light (), said first luminescent material light () and optionally said second luminescent material light (), and wherein said light converter element is arranged for changing one or more of the color and color temperature of the lighting device light with the electrical power provided to the light source.

LED with thermo-responsive black-body line dimming

The invention relates to an UV radiation device, comprising an LED comprising a nitridic material which is arranged to emit first UV radiation in a wavelength range of 200 nm-300 nm and a luminescent material doped with at least one of the following activators selected out of the group Eu, Ce, Pr, Nd, Gd, Tm, Sb, Tl, Pband Bi, wherein the luminescent material is configured to convert at least a part of the primary UV radiation into secondary UV radiation, the primary UV radiation and the secondary UV radiation having a different spectral distribution.

UV radiation device

Application of a wavelength conversion element is substantially independent of the fabrication of a side-emitting light emitting device. In an example embodiment, the wavelength conversion element is situated around the periphery of a non-wavelength converting lightguide that is situated above the light emitting surface. One or more specular and/or diffusing reflectors are used to direct the light in the lightguide toward the wavelength conversion element at the periphery. In another embodiment, an interference filter may be used to provide predominantly side-emitted light at interfaces between the elements of the light emitting device.

Flip-chip side emitting LED with top reflector, peripheral wavelength conversion element, and optical element between light emitting element and lightguide element

A lighting assembly, a light source and a luminaire are provided. The lighting assemblycomprises a primary thermal layer, a plurality of Lighting Emitting Diode assembliesand a plurality of wires. The primary thermal layeris of a thermally conductive material. The wiresare electrically coupled between electrodesof at least two different Light Emitting Diode assemblies. The Light Emitting Diode assembliescomprise a sub-mount, a first and a second metal electrodeand a Light Emitting Diode die. The sub-mountis of a thermally conductive and electrically insulating ceramic. The sub-mounthas a first side which is thermally coupled to the primary thermal layerand has a second side being opposite the first side. The first and the second metal electrodeare arranged at the second side of the sub-mount. The Light Emitting Diode dieis electrically and thermally coupled with an anode of the Light Emitting Diode to the first metal electrode and with a cathode of the Light Emitting Diode to the second metal electrode.

Lighting assembly, a light source and a luminaire

A lighting module () and a method () of manufacturing a lighting module, wherein the method comprises the steps of providing a heat sink material () in a fluid state and providing a light-source assembly () comprising a plurality of light sources () being electrically connected to a carrier (), wherein each of the light sources has a light-emitting surface (). The method further comprises the steps of embedding () the light-source assembly into the heat sink material such that the carrier and a part of each of the light sources are covered by the heat sink material while the light-emitting surface of each of the light sources is uncovered by the heat sink material, and solidifying () the heat sink material.

Lighting module and method of manufacturing a lighting module

The present invention relates to lighting module, wherein a light exit window () of the lighting module is engraved such that the output color temperature of said lighting module is tuned. The present invention also relates to a method for tuning an output color temperature of a lighting module, said method comprising providing said lighting module comprising a light exit window (), and a light source arranged to provide light having an optical path through said light exit window (), said lighting module having a first output color temperature; and engraving a surface of said light exit window () such that the output color temperature of said lighting module is tuned to a second output color temperature.

Light emitting diode module with improved light characteristics

The present invention relates to a UV light reflective composition comprising a light transmissive matrix comprising a silicone resin, and UV light reflective particles comprising boron nitride, the particles being dispersed in the transmissive matrix. The light reflective particles of the UV light reflective composition has an average particle size within the range of from 0.2 to 0.7 &#x3bc;m. An advantage of the present invention is that it provides a highly light reflective composition, especially in the UV range.

Reflective composition

A light output device and manufacturing method in which an array of LEDs is embedded in an encapsulation layer. An array of cavities (or regions of different refractive index) is formed in the encapsulation layer. The cavities/regions have a density or size that is dependent on their proximity to the light emitting diode locations, in order to reduce hot spots (local high light intensity areas) and thereby render the light output more uniform over the area of the device.

Light output device and method of manufacture

A lighting device has an array of light emitting diodes (LEDs), an adhesion layer having portions with photo-activated electrical conductivity over the LEDs, and electrically charged scattering particles adhered by electrostatic attraction to the adhesion layer portions, thereby forming scattering regions that are self-aligned to the light emitting diodes. A method for manufacturing the lighting device includes photo-activating the adhesion layer using light output from the light emitting diodes to locally vary the conductivity of the adhesion layer; and attaching electrically charged scattering particles to the adhesion layer by electrostatic attraction.

Lighting device with electrostatically adhered scattering particles and method of manufacture

A flexible lighting assembly, a luminaire, a method of manufacturing a flexible layerand a use of the flexible layeris provided. The flexible lighting assemblycomprises a flexible layerof a flexible polymer and comprises a C light sourcewhich is thermally coupled to the flexible layer. The flexible layercomprises boron nitride particlesthat have a hexagonal crystal structure.

Flexible lighting assembly, a luminaire, and a method of manufacturing a flexible layer

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Jianghong Yu