Signify Holding B.v.

Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Lumileds LLC

U.S. Philips Corporation

Samsung Electronics Co., Ltd.

Asml Netherlands B.v.

Chimei Innolux Corporation

Qd Vision, Inc.

Koninklijke Phillips Electronics N.v.

Lumileds Holding B.v.

Rifat Ata Mustafa Hikmet

Ties Van Bommel

Johannes Petrus Maria Ansems

Paulus Albertus Van Hal

Johan Lub

Robert Jacob Pet

René Theodorus Wegh

Olexandr Valentynovych Vdovin

Dirk Kornelis Gerhardus De Boer

Robert Van Asselt

Hugo Johan Cornelissen

Dominique Maria Bruls

Shu Xu

Martinus Petrus Joseph Peeters

Petrus Theodorus Jutte

Durandus Kornelius Dijken

Rene Theodorus Wegh

Eduard Johannes Meijer

Johannes Franciscus Maria Cillessen

Jan Cornelis Kriege

Dirk Veldman

Erik Paul Boonekamp

Marcus Antonius Verschuuren

Peter Van De Witte

Albert Bijlsma

Dirk Jan Broer

Coen Adrianus Verschuren

Roelof Koole

Coen Theodorus Hubertus Fransiscus Liedenbaum

Yongfeng Ni

Hans Feil

Marius Gabriel Ivan

Michel Cornelis Josephus Marie Vissenberg

Marcellinus Petrus Carolus Michael Krijn

Peter Johannes Martinus Bukkems

Marcel Rene Bohmer

Craig Allen Breen

Christoph Gerard August Hoelen

Ramon Pascal Van Gorkom

Oscar Hendrikus Willemsen

Hendrik Johannes Boudewijn Jagt

Ruben Rajagopalan

Ludovicus Johannes Lambertus Haenen

Dmitry Nikolayevich Znamenskiy

Georges Marie Calon

Patrick John Baesjou

Jacobus Petrus Johannes Van Os

Manuela Lunz

Marcellus Jacobus Johannes Van Der Lubbe

Leendert Van Der Tempel

Dirk Jan Van Kaathoven

Henricus Albertus Maria Van Hal

Thomas Caspar Kraan

Gabriel Sebastian Lozano Barbero

Grigory Alexandrovich Onushkin

Lars Christian Casper

Cornelis Reinder Ronda

Sander Frederik Wuister

Tim Dekker

Herbert Lifka

Tim Corneel Wilhelmus Schenk

Josef Andreas Schug

Daan Anton Van Den Ende

Johannes Petrus Wilhelmus Baaijens

Christian Kleijnen

Willem Gerard Ophey

Hongming Yang

Kumar Arulandu

Harald Josef Gunther Radermacher

Alexander Henricus Waltherus Van Eeuwijk

Hendrikus Hubertus Petrus Gommans

Hendrik Jan Eggink

Abraham Rudolf Balkenende

Dave Willem Van Goor

Jianghong Yu

Anteneh Alemu Abbo

Horst Greiner

Sima Asvadi

Cristina Tanase

Eliav Itzhak Haskal

Elise Claude Valentine Talgorn

Hendrik Adrianus Van Sprang

Godefridus Johannes Verhoeckx

Egbertus Reinier Jacobs

Josephus J M Braat

Barry Mos

Jaime Gomez Rivas

Rob Franciscus Maria Van Elmpt

Emile Johannes Karel Verstegen

Henricus Marie Peeters

Martin Hillebrand Blees

Paul Anton Josef Ackermans

Wei Pien Lee

Celine Catherine Sarah Nicole

Henri Marie Joseph Boots

Bernd Hofmann

Rick Gerhardus Nijkamp

Edward Theodorus Maria Berben

Wilma Van Es-Spiekman

Josephus Paulus Augustinus Deeben

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

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 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

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 method for 3D printing a 3D item, the method comprising providing 3D printable material () and printing during a printing stage said 3D printable material (), wherein the 3D printable material () comprises a thermoplastic material, to provide said 3D item, wherein the 3D item comprises an item surface, wherein the method further comprises providing a powder coating with a powder coating device () on at least part of said item surface during a coating stage. The invention also relates to the item manufactured by such method and to the manufacturing apparatus () used.

Power coated FDM printed item, related manufacturing method and apparatus

The invention provides a method for 3D printing a 3D item (), the method comprising providing a filament () of 3D printable material () and printing during a printing stage said 3D printable material (), to provide said 3D item () comprising 3D printed material (), wherein the 3D printable material () further comprises particles (), wherein the particles () comprise one or more of glass and mica, wherein the particles () have a coating (), wherein the coating comprises one or more of a metal coating and a metal oxide coating, and wherein the particles () have a longest dimension (A) having an longest dimension length (L) selected from the range of 10 μm-2 mm, and wherein the particles have an aspect ratio of at least 10.

3D printing of a reflector using polymer filled with metal coated glass or mica particles and reflector obtainable thereby

The invention provides a method for producing a 3D item by depositing 3D printable material, wherein the 3D printable material comprises core material and 3D printable shell material. The core material is one or more of (i) reflective, (ii) transmissive, (iii) absorbing, and (iv) luminescent for light having a wavelength in the visible wavelength range. The 3D printable shell material is transmissive for the wavelength in the visible wavelength range. A printed core-shell layer has a layer width (W) and a layer height and a first aspect ratio AR1, wherein AR1=W/H and wherein AR1>1. A cross-sectional plane of the core-shell layer comprises the layer width (W) and the layer height, and the core () provides a core cross-section having a first dimension (A1), which is the longest dimension of the core cross-section, and a second dimension (A) perpendicular to the first dimension (A1), providing a second aspect ratio AR, wherein AR=A1/A, wherein 2=<AR=<10,000; and wherein AR/AR1>=1.5, wherein the core () comprises two or more strip-like elements (), wherein each of the two or more strip-like elements () has an element length (L) individually selected from the range of at least the layer width (W), wherein L>=*A1, and wherein the spacing distance (S) between two neighboring strip-like elements S=<10*L.

FDM manufactured light reflective surfaces

Growing community of inventors

Eindhoven, Netherlands

Rifat Ata Mustafa Hikmet