Signify Holding B.v.

Philips Lighting Holding B.v.

Koninklijke Philips Corporation N.v.

Lumileds LLC

Asml Netherlands B.v.

Lumileds Holding B.v.

Ties Van Bommel

Rifat Ata Mustafa Hikmet

Peter Josef Schmidt

Michel Cornelis Josephus Marie Vissenberg

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

Dominique Maria Bruls

René Theodorus Wegh

Marcus Antonius Verschuuren

Eduard Johannes Meijer

Durandus Kornelius Dijken

Christoph Gerard August Hoelen

Alexander Henricus Waltherus Van Eeuwijk

Yongfeng Ni

Nicolaas Antonie Van Rijswijk

Noud Johannes Fleuren

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

Leendert Van Der Tempel

Dirk Jan Van Kaathoven

Sander Frederik Wuister

Tim Corneel Wilhelmus Schenk

Kars-Michiel Hubert Lenssen

Roelof Koole

Coen Theodorus Hubertus Fransiscus Liedenbaum

Martinus Petrus Creusen

Yacouba Louh

Shu Xu

Hendrik Jan Eggink

Jianghong Yu

Elise Claude Valentine Talgorn

Jacobus Petrus Johannes Van Os

Ronald Johannes Gelten

René Cornelis Reuser

Roy Gerardus Franciscus Antonius Verbeek

Simon Jacobus Maria Kuppens

Dirk Veldman

Gabriel Sebastian Lozano Barbero

Grigory Alexandrovich Onushkin

Albert Bijlsma

Gerardus Wilhelmus Gerbe Van Dreumel

Anna Wilhelmina Maria Wondergem-De Best

David Cavaliere

Rick Gerardus Nijkamp

Frank Jan Baas

Jeffrey Huyghe

Hendrik Adrianus Van Sprang

Godefridus Johannes Verhoeckx

Jaime Gomez Rivas

Emile Johannes Karel Verstegen

Jan Cornelis Kriege

Marius Gabriel Ivan

Rick Gerhardus Nijkamp

Thomas Caspar Kraan

Josephus Paulus Augustinus Deeben

Rene Jan Hendriks

Wilhelmina Maria Hardeman

Genevieve Martin

Kwan Nai Lee

Dmitri Anatolievich Chestakov

Lars Christian Casper

Nathalie Magali Danielle Dessaud

Gerardus Everardus Marie Hannen

Said Rahimzadeh Kalaleh Rodriguez

Stefan Willi Julius Gruhlke

Evren Özcan

Wijnand Evert Jacobus Van Kooten

Martijn Jochem Van Uden

Petrus Johannes Maria Van Os

Jaime Gómez Rivas

Huibert Wouters

Oliver Francis Burke

Sunsuke Murai

Davy Louwers

Albert Van Dijken

Alexander Henricus Walterus Van Eeuwijk

Anna Wilhekmina Maria Wondergem-De Best

Jan Frank Stromer

Chi Keung Lau

Yiu Wing Ha

Stefan Willi Jukius Gruhlke

Marc Van Der Schans

Hugo Johan Cornellisen

René Theodorus Weigh

Christoph Hoelen

Jaime GÓMEZ Rivas

The invention provides a method for producing a 3D item by means of fused deposition modelling, the method comprising: (a) a 3D printing stage comprising: layer-wise depositing 3D printable material, wherein the 3D printable material comprises 3D printable core material and 3D printable shell material, to provide the 3D item comprising a core-shell layer of 3D printed material, wherein the 3D printed material comprises a core comprising 3D printed core material and a shell comprising 3D printed shell material, wherein the shell at least partly encloses the core, wherein the 3D printable core material comprises a pore forming material with a first concentration c, wherein the 3D printable shell material comprises the pore forming material with a second concentration c, wherein c/c≤0.9; and (b) a pore forming stage comprising: heating one or more of (i) the printable material and (ii) the 3D printed material.

Mechanically stable core-shell FDM prints containing porous core

A light-emitting diode, LED, filament () is disclosed, comprising a plurality of LEDs () configured to, in operation, emit LED light, and an elongated carrier () comprising a major surface () on which the plurality of LEDs () are arranged. The LED filament () comprises a first enclosing structure (), comprising a first body () arranged to receive at least some of the LED light emitted by the plurality of LEDs (), convey it through the first body () and output first LED light, and a second enclosing structure (), comprising a second body () arranged to receive at least some of the first LED light, convey it through the second body () and output second LED light, wherein the second body () comprises one or more wavelength-converting elements. A thickness (T) of the first enclosing structure () is larger than a thickness (T) of the second enclosing structure () multiplied by two.

LED filament

An outdoor luminaire () comprising: a canopy () on top of a luminaire frame () and having a canopy enclosure (); an optical chamber () bounded by the luminaire frame () and a light exit window (); a light engine () being arranged below the canopy () and comprising a LED light source () and comprising a first heat sink () in (direct) thermal contact with said LED light source (); an antenna system () for transmitting and/or receiving wireless signals is at least partly arranged within the outdoor luminaire (); a radio frequency transceiver () comprising a second heat sink () in (direct) thermal contact with the radio frequency transceiver (), said radio frequency transceiver () is communicatively coupled to the antenna system (); a support () for supporting the radio frequency transceiver (). In an assembled, closed configuration the radio frequency transceiver () is mounted onto the frame () by the support () with the radio frequency transceiver () being at least partly recessed in the canopy enclosure () and being arranged at a spacing S from the first heat sink ().

Luminaire comprising a radio frequency transceiver spaced from a light engine

An outdoor luminaire with wireless functionality. A canopy is coupled to an uppermost surface or portion of a luminaire housing containing a light source. The volume bounded by the canopy and the luminaire housing defines a canopy enclosure. This canopy enclosure encloses a portion of a first heatsink (for the luminaire housing), a wireless module, an antenna system and a second heatsink for the wireless module. The canopy also comprises one or more air inlets and one or more air outlets, to allow air to flow into and out of the canopy enclosure. The first heatsink comprises one or more fins that extend toward an upper portion of the canopy.

Outdoor luminaire for a streetlight

Outdoor luminaire () comprising a housing () with a light exit window (), a mounting element (), a lighting unit () with a light source () accommodated in the housing and emitting light () through the light exit window. The housing further accommodating four antennas () with a respective directional radiation pattern () and a respective line of sight (). The respective line of sights are mutually oriented in a manner similar to the four cardinal directions of a compass orthogonal to the direction of gravity when said luminaire is mounted. When the mounting element is surrounded by all four antennas the line of sight of all antennas are facing away from the mounting element, or when the mounting element is not surrounded by all four antennas, the mounting element is arranged outside the line of sight of the antenna facing towards the mounting element.

Outdoor luminaire, streetlight fixture and outdoor lighting system

A light emitting diode, LED, filament (), configured to emit LED filament light, comprising an array of a plurality of light emitting diodes (), LEDs, configured to emit LED light, a carrier () arranged to support the plurality of LEDs, at least one heat sink () arranged in thermal connection with the carrier for a dissipation of heat from the plurality of LEDs during operation, wherein the at least one heat sink comprises a base portion () extending parallel to the carrier, and a plurality of fins () projecting from the base portion, and an encapsulant () comprising a translucent material, wherein the encapsulant at least partially encloses the plurality of LEDs, the carrier and the at least one heat sink.

LED filament with heat sink

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

Growing community of inventors

Horst, Netherlands

Ties Van Bommel