Signify Holding B.v.

Philips Lighting Holding B.v.

Koninklijke Philips Corporation N.v.

Lumileds LLC

Asml Netherlands B.v.

Ties Van Bommel

Rifat Ata Mustafa Hikmet

Johannes Petrus Maria Ansems

Robert Jacob Pet

Olexandr Valentynovych Vdovin

Hugo Johan Cornelissen

Dirk Kornelis Gerhardus De Boer

Martinus Petrus Joseph Peeters

Robert Van Asselt

René Theodorus Wegh

Marcus Antonius Verschuuren

Eduard Johannes Meijer

Dominique Maria Bruls

Durandus Kornelius Dijken

Christoph Gerard August Hoelen

Alexander Henricus Waltherus Van Eeuwijk

Yongfeng Ni

Roy Gerardus Franciscus Antonius Verbeek

Peter Johannes Martinus Bukkems

Coen Adrianus Verschuren

Johan Lub

Rene Theodorus Wegh

Antonius Adrianus Maria Marinus

Ludovicus Johannes Lambertus Haenen

Paulus Albertus Van Hal

Georges Marie Calon

Marcellus Jacobus Johannes Van Der Lubbe

Dirk Jan Van Kaathoven

Leendert Van Der Tempel

Yacouba Louh

Simon Jacobus Maria Kuppens

Dirk Veldman

Gabriel Sebastian Lozano Barbero

Albert Bijlsma

Grigory Alexandrovich Onushkin

Gerardus Wilhelmus Gerbe Van Dreumel

Anna Wilhelmina Maria Wondergem-De Best

Frank Jan Baas

Rick Gerardus Nijkamp

Peter Josef Schmidt

Sander Frederik Wuister

Tim Corneel Wilhelmus Schenk

Kars-Michiel Hubert Lenssen

Roelof Koole

Coen Theodorus Hubertus Fransiscus Liedenbaum

Shu Xu

Hendrik Jan Eggink

Jianghong Yu

Elise Claude Valentine Talgorn

Jeffrey Huyghe

Hendrik Adrianus Van Sprang

Godefridus Johannes Verhoeckx

Jaime Gomez Rivas

Emile Johannes Karel Verstegen

Jan Cornelis Kriege

Marius Gabriel Ivan

Thomas Caspar Kraan

Rick Gerhardus Nijkamp

Josephus Paulus Augustinus Deeben

Rene Jan Hendriks

Dmitri Anatolievich Chestakov

Lars Christian Casper

Wilhelmina Maria Hardeman

Genevieve Martin

Nathalie Magali Danielle Dessaud

Gerardus Everardus Marie Hannen

Said Rahimzadeh Kalaleh Rodriguez

Stefan Willi Julius Gruhlke

Martijn Jochem Van Uden

Wijnand Evert Jacobus Van Kooten

Jaime Gómez Rivas

Oliver Francis Burke

Huibert Wouters

Chi Keung Lau

Hugo Johan Cornellisen

Marc Van Der Schans

Stefan Willi Jukius Gruhlke

Anna Wilhekmina Maria Wondergem-De Best

Alexander Henricus Walterus Van Eeuwijk

Yiu Wing Ha

Jan Frank Stromer

Sunsuke Murai

Albert Van Dijken

Davy Louwers

A light emitting diode, LED, filament arrangement (), comprising an elongated LED filament () comprising an array of a plurality of light emitting diodes (), LEDs, and a carrier () arranged to support the plurality of LEDs. The LED filament arrangement further comprises a heat sink (), wherein the LED filament is arranged upon the heat sink. The LED filament comprises a center axis, A, and elongates in a meandering shape in a first plane, P, wherein at least one of the LED filament and the heat sink is convex-shaped with respect to the center axis, A, along at least a first segment () of the LED filament, and at least one of the LED filament and the heat sink is concave-shaped with respect to the center axis, A, along at least a second segment () of the LED filament.

LED filament arrangement

The present invention describes a LED light unit () for providing LED light, the LED light unit () comprising a flexible printed circuit board (PCB) () having a first longitudinal axis (LA) and a plurality of elongated light sources () each having a second longitudinal axis (LA). The plurality of elongated light sources () is arranged on the flexible PCB () such that none of the second longitudinal axes (LA) of the plurality of elongated light sources () is parallel to the first longitudinal axis (LA) of the flexible PCB (). The LED light unit further comprises a carrier (), wherein the flexible PCB () is bent along the first longitudinal axis (LA) such that each of the elongated light sources () is arranged in the shape of a substantially circular arc, and wherein the flexible PCB () is subsequently at least partially attached to the carrier ().

Led light unit

The invention provides in embodiments a light generating system () comprising a first light generating device (), a first luminescent material (), and a second luminescent material (), wherein: A) the first light generating device () is configured to generate first device light (), wherein the first light generating device () comprises a first light source () selected from the group of a superluminescent diode and a laser; B) the first luminescent material () comprises a line absorber and line emitter luminescent material providing a first luminescent material emission () comprising a line emission at a first wavelength (λ) upon excitation with the first device light (); C) the second luminescent material () comprises a broad band emitter luminescent material providing a second luminescent material emission () comprising a broad band emission upon excitation with the first device light (), wherein the second luminescent material emission () has a second centroid wavelength (λ), wherein |λ-λ|≤20 nm; D) the first light generating device () is configured to pump one or more of the first luminescent material () and the second luminescent material () with the first device light (); and E) the light generating system () is configured to generate system light () comprising one or more of the first luminescent material emission () and the second luminescent material emission ().

High brightness light source

The invention provides a light generating system () comprising a light generating device (), a luminescent material layer (), and optics (), wherein: (I) the light generating device () is configured to generate polarized laser radiation (); (II) the luminescent material layer () comprises a luminescent material () configured in a light-receiving relationship with the light generating device () and configured to convert at least part of the polarized laser radiation () into luminescent material radiation (); (III) the light generating system () is configured to generate in an operational mode system light () at least comprising the luminescent material radiation (); (IV) the optics () comprise first optics () and second optics (); wherein the first optics () are configured to change the polarization of the polarized laser radiation (), and wherein the second optics () have one or more of (i) a polarization dependent transmission and (ii) a polarization dependent reflection for the polarized laser radiation (); and (V) the light generating device () and the optics () are configured such that, relative to an optical path of the luminescent material radiation () emanating from the luminescent material (), the second optics () are configured downstream from the first optics () and the luminescent material ().

Eye safe laser lighting system using built in safety

The invention provides a method for producing a 3D item () by means of fused deposition modeling, the method comprising a 3D printing stage comprising layer-wise depositing an extrudate () comprising 3D printable material (), to provide the 3D item () comprising 3D printed material (), wherein the 3D item () comprises layers () of 3D printed material (), wherein the method further comprises controlling a first temperature Tof the 3D printable material () within a first temperature range, wherein the 3D printable material () comprises a thermoplastic host material () and a dopant material () in the range of 1-20 vol %, the dopant material () comprising polymeric flake-like particles having a metal coating, wherein the 3D printable material () has an optical property that irreversibly changes from a low-temperature optical property to a high-temperature optical property when increasing a temperature of the 3D printable material (201) over a change temperature T, the optical property being selected from the group consisting of reflection, transmission, luminescence, absorption, and color, wherein the change temperature Tis within the first temperature range, wherein during at least a first part of the 3D printing stage the first temperature Tis below the change temperature T, and wherein during at least a second part of the 3D printing stage the first temperature Tis above the change temperature T.

FDM printed item with dopant material

The invention provides a light generating system () comprising: (i) a first set () comprising n1 first light generating devices (), (ii) a first optical element (), and (iii) a luminescent body (), wherein: —the n1 first light generating devices () are configured to generate first device light (); wherein the n1 first light generating devices () may be selected from the group of lasers and superluminescent diodes; —the first set () comprises k1 first subsets () of each at least one first light generating device () of the n1 first light generating devices (), wherein n1≥3, especially n1≥5, and 2≤k1≤n1; —the luminescent body () is configured to: (i) convert part of the first device light () into luminescent material light (), and (ii) transmit part of the first device light (); —the n1 first light generating devices () and the first optical element () are configured to provide first beams () of first device light () to the luminescent body (), wherein two or more first beams () of two or more first light generating devices () of the k1 first subsets () have different first angles of incidence (α) relative to a normal to the luminescent body (); and—in an operational mode of the light generating system () a first intensity of the first device light () of the k1 first subsets () is dependent upon the first angles of incidence (α).

High intensity white light source with good uniformity based on a plurality of light sources

A light emitting diode, LED, filament () comprising an array of a plurality of light emitting diodes (), LEDs, circuitry () coupled to the plurality of LEDs, a carrier () arranged to support the plurality of LEDs, an encapsulant () comprising a translucent material and a luminescent material configured to at least partially convert the LED light into converted light, wherein the plurality of LEDs comprises a first set () of LEDs arranged to emit first LED light in a first wavelength range of 430-490 nm, and a second set () of LEDs arranged to emit second LED light in a second wavelength range of 315-420 nm, wherein the circuitry is configured to provide the first set of LEDs with a first current, I, and to provide the second set of LEDs with a second current, I, during operation of the LED filament, wherein I>I.

LED filament for illumination and disinfection

The invention relates to a method of manufacturing a 3D item by means of fused deposition modeling. The method comprises the step of depositing a 3D printable material to form a layer stack of 3D printed material, wherein each layer of the layer stack has a layer height and a layer width. The 3D printable material comprises a thermoplastic polymer and light transmissive particles. The layer stack comprises a plurality of the light transmissive particles, each light transmissive particle having a particle width, being the dimension of the light transmissive particle in a direction parallel to the layer width. For the plurality of light transmissive particles, each ratio of the particle width and the layer width is at least 0.6 so that, in the layer stack, the plurality of light transmissive particles forms a plurality of pinholes delimited by a wall part. When the 3D item is illuminated by a light source, the pinholes create relatively small virtual light sources on the surface of the 3D item, opposite to the surface that is illuminated by the light source, thereby providing a sparkling light effect for an observer looking at the 3D item.

Method of manufacturing a 3D item by means of fused deposition modeling

The invention provides a light conversion system () comprising (a) one or more luminescent bodies (), (b) a thermally conductive body (), (c) a waveguide element (), and (d) a light generating device (), wherein: (A) the thermally conductive body () comprises a first reflective face (), and a first slit () in at least part of the first reflective face (), wherein the first slit () comprises a first slit opening (); (B) the waveguide element () comprises a light entrance part () and a light exit part (), wherein at least part of the light exit part () is configured in the first slit (); wherein the waveguide element () is configured to guide at least part of first light () coupled into the waveguide element () via the light entrance part () to the light exit part (); (C) the one or more luminescent bodies () comprise a reflector-directed part () and an optical output part (); wherein the reflector-directed part () is in thermal contact with at least part of the first reflective face () and wherein the reflector-directed part () encloses at least part of the first slit opening (); wherein the one or more luminescent bodies () are configured (a) to receive via at least part of the reflector-directed part () at least part of the first light () escaping from the light exit part () of the waveguide element () and (b) to convert in a light conversion process at least part of the first light () into luminescent material light (), wherein at least part of the luminescent material light () emanates from the optical output part (); and (D) the light generating device () is configured to generate the first light (), wherein the light generating device () is configured upstream of the light entrance part () of the waveguide element (); and wherein the light generating device () comprises a solid state light source.

Laser-based light engine with improved thermal management using tapered fiber

The invention provides light generating system () comprising a first light generating device (), a luminescent body (), one or more thermally conductive bodies (), and one or more optical elements (); wherein: (A) the first light generating device () is configured to generate first device light (), wherein the first light generating device () comprises a first light source () selected from the group of a superluminescent diode and a laser; (B) the luminescent body () comprises a luminescent material () configured to convert at least part of the first device light () into luminescent material light (); wherein the luminescent body () comprises a first face (), a second face (), and a bridging face () bridging the first face () and the second face (); wherein the second face () has an second face equivalent circular diameter D2, wherein the bridging face () In has a first height (H1), wherein H1/D2<1, and a perimeter (P); (C) the one or more thermally conductive bodies () comprise: (C1) a first thermally conductive body part (), in thermal contact with at least part of the first face (); and (C2) a second thermally conductive body part (), in thermal contact with one or more of (i) part of the bridging face () and (ii) part of the second face (); (D) the first thermally conductive body part () and the second thermally conductive body part () define a slit-like opening () along at least part of the perimeter (P) of the bridging face (); and (E) the first light generating device () and the one or more optical elements () are configured to provide the first device light () via the slit-like opening () to the luminescent body ().

Heatsink comprising a closed-logo slit for pumping a cylindrical phosphor body

A lighting system includes an elongated power track connectable to a power supply, and a light emitting diode (LED) module configured to be connected to the power track. The LED module includes an elongated optical component and at least one LED light source. The optical component is arranged to at least partly enclose the power track when coupled to the LED module. The optical component includes a light in-coupling section facing the LED light source and configure to received light into the light component, and a light out-coupling section configured to couple light out of the optical component and direct the emission of light away from the power track.

Track lighting system having led module with light guide enclosing power track

A track lighting system, comprising a power trackand a LED module. The LED module comprises a first LED light sourceand a first housing, wherein the first housing comprises a first collimatorhaving a principal axis, E, collimating the first LED light in a first direction, D. The LED module further comprises a second LED light source, and a second housing, wherein the second housing comprises a second collimatorhaving a second principal axis, F, collimating the second LED light in a second direction, D. The first collimator is tiltable with respect to a normal, C, such that the first principal axis, E, forms a first angle, α, with respect to the normal, C. The second principal axis, F, of the second collimator is fixed with respect to tilt at a second angle, β, with respect to the normal, C.

Track lighting system

The present invention relates to a track lighting system () comprising: a power track () having a longitudinal extension (L) and being connectable to an electric supply; a plurality of individually controllable lighting devices comprising at least one first lighting device () and at least one second lighting device (), each being connectable to the power track (), wherein the at least one first lighting device () comprises a first light source and a first light exit window () having a first form factor, wherein the at least one second lighting device () comprises a second light source and a second light exit window () having a second form factor; wherein at least one first lighting device () is a first pixelated lighting device wherein the first light source comprises a plurality of individually controllable first LED pixels; wherein the track lighting system () further comprises at least one control unit arranged to individually control the lighting devices (); and wherein the control unit is further arranged to control at least one first LED pixel of the plurality of individually controllable first LED pixels of the at least one first lighting device () to illuminate only a first portion of the first light exit window such that a light pattern is providable by the track lighting system () in the first light exit window.

Adaptable track lighting system

Provided is a method for producing a 3D item using fused deposition modelling, the method comprising a 3D printing stage comprising: layer-wise depositing an extrudate comprising 3D printable material, to provide the 3D item comprising 3D printed material, wherein the 3D item comprises a plurality of layers of 3D printed material having a core-shell 3D printable material, wherein the core material comprises a core thermoplastic material and core additive material, wherein the shell material comprises a shell thermoplastic material and shell particles, wherein the shell material is light transmissive, wherein the shell particles comprise specularly reflective particles, wherein the core additive material comprises one or more of diffuse reflective particles, white particles, black particles, colored particles, and dye molecules, and wherein the core material and shell material differ in one or more optical properties selected from the group of color, reflectivity, type of reflectivity, and absorption of light.

FDM printed luminaires with enhanced shiny appearance

The invention provides a light generating system () comprising a lighting unit (), a luminescent element (), an optical element (), and a reflective element (), wherein: (a) the lighting unit () is configured to generate a beam () of unit light (); (b) the luminescent element () comprises a luminescent material () configured to convert at least part of the unit light () into luminescent material light (); wherein the luminescent element () comprises a first luminescent element face () and a second luminescent element face (), wherein at least part of the luminescent material () is configured between the first luminescent element face () and the second luminescent element face (); (c) the optical element () comprises an external surface (), wherein the optical element () is configured between the luminescent element () andthe reflective element (), wherein a first part () of the external surface () is directed to the second luminescent face (), wherein a second part () of the external surface () is directed to the reflective element (), and wherein a third part () of the externa surface () is configured in a light receiving relationship with the lighting unit (); wherein a first area Aof the first part () is smaller than a second area Aof the second part (), wherein the optical element () is transmissive for the unit light (); (d) the reflective element () is configured to reflect unit light (); and (e) the lighting unit () is configured such that in an operational mode the lighting unit () is configured to irradiate the first element face () via transmission through the optical element () and reflection at the reflective element ().

Laser SMD package with phosphor and light incoupler

Growing community of inventors

Horst, Netherlands

Ties Van Bommel