Patents by Inventor Roelof Koole
Roelof Koole has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11652963Abstract: The invention provides a system (1000) for processing light, the system (1000) configured to provide along a main beam path (1105) a beam (1005) of system light (1001), wherein the system light (1001) comprises one or more of first light (111) having a first spectral distribution, second light (121) having a second spectral distribution, and third light (131) having a third spectral distribution, wherein the first, second, and third spectral distributions mutually differ, wherein the system (1000) comprises: —a lighting arrangement (100) configured to provide along a first beam path (1101) a first beam (101) comprising primary light (103) having a spectral power distribution with at least 80% of the spectral power consisting of one of the first light (111), the second light (121), and the third light (131), and/or configured to provide along a second beam pat (1102) a second beam (102) comprising composed light (104) having a spectral distribution with at least 80% of the spectral power consisting of the twoType: GrantFiled: November 13, 2018Date of Patent: May 16, 2023Assignee: SIGNIFY HOLDING B.V.Inventors: Vincent Vanbroekhoven, Roelof Koole, Bart Alex Theresia Dilles, John-John Pieter Jan Van Den Bergh
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Publication number: 20200366874Abstract: The invention provides a system (1000) for processing light, the system (1000) configured to provide along a main beam path (1105) a beam (1005) of system light (1001), wherein the system light (1001) comprises one or more of first light (111) having a first spectral distribution, second light (121) having a second spectral distribution, and third light (131) having a third spectral distribution, wherein the first, second, and third spectral distributions mutually differ, wherein the system (1000) comprises: —a lighting arrangement (100) configured to provide along a first beam path (1101) a first beam (101) comprising primary light (103) having a spectral power distribution with at least 80% of the spectral power consisting of one of the first light (111), the second light (121), and the third light (131), and/or configured to provide along a second beam pat (1102) a second beam (102) comprising composed light (104) having a spectral distribution with at least 80% of the spectral power consisting of the twoType: ApplicationFiled: November 13, 2018Publication date: November 19, 2020Inventors: VINCENT VANBROEKHOVEN, ROELOF KOOLE, BART ALEX THERESIA DILLES, JOHN-JOHN PIETER JAN VAN DEN BERGH
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Publication number: 20200119232Abstract: The present invention relates to a device for emitting light. In one embodiment, an LED has a nano-particle (e.g., quantum dot) coating layer over it for down-converting the light from the LED. The nano-particles are in a dispersion medium for dispersing the nano-particles. The dispersion medium is mixed with a weak acid or a salt thereof. The nano-particles may be coated with silica and the solution is pre-treated with a base or alkali-silanolate to increase the stability of the nano-particles in light conversion.Type: ApplicationFiled: December 9, 2019Publication date: April 16, 2020Inventors: Marcel Rene BOHMER, Roelof Koole
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Patent number: 10578257Abstract: The invention provides a method for the production of a luminescent material, (10) based on coated quantum dots (100), comprising: (i) providing luminescent quantum dots (100) in a liquid medium (20) wherein the luminescent quantum dots (100) have an outer layer (105) comprising first cations and first anions; and (ii) providing in a coating process a coating (120) on the outer layer (105) of the quantum dots (100) in the liquid medium (20), wherein the coating (120) comprises a silica coating; wherein during the coating process, or after the coating process, or during and after the coating process, the liquid medium (20) comprises one or more of a third element and a fourth element, wherein the first cation and the third element belong to the same group of the periodic system, and wherein the first anion and the fourth element belong to the same group of the periodic system.Type: GrantFiled: July 24, 2015Date of Patent: March 3, 2020Assignee: LUMILEDS LLCInventors: Roelof Koole, Patrick John Baesjou, Marcel Rene Bohmer, Joep Lodewijk Peters
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Patent number: 10538859Abstract: A method is disclosed involving depositing a neutral orientation template layer onto a substrate after formation of chemical epitaxy or graphoepitaxy features on the substrate, but before deposition and orientation of a self-assemblable polymer. The orientation layer is arranged to bond with the substrate but not with certain features, so that it may be easily removed by vacuum or rinsing with organic solvent. The neutral orientation layer has a chemical affinity to match that of blocks in the self-assemblable polymer so that blocks of differing types wet the neutral orientation layer so that domains in the self-assembled polymer may lie side by side along the substrate surface, with interfaces normal to the substrate surface. The resulting aligned and oriented self-assembled polymer may itself be used as a resist for device lithography of the substrate.Type: GrantFiled: December 9, 2011Date of Patent: January 21, 2020Assignee: ASML Netherlands B.V.Inventors: Emiel Peeters, Wilhelmus Sebastianus Marcus Maria Ketelaars, Johan Frederik Dijksman, Sander Frederik Wuister, Roelof Koole, Christianus Martinus Van Heesch
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Patent number: 10516082Abstract: The present invention relates to a device for emitting light. In one embodiment, an LED has a nano-particle (e.g., quantum dot) coating layer over it for down-converting the light from the LED. The nano-particles are in a dispersion medium for dispersing the nano-particles. The dispersion medium is mixed with a weak acid or a salt thereof. The nano-particles may be coated with silica and the solution is pre-treated with a base or alkali-silanolate to increase the stability of the nano-particles in light conversion.Type: GrantFiled: June 29, 2016Date of Patent: December 24, 2019Assignee: LUMILEDS HOLDING B.V.Inventors: Marcel Rene Bohmer, Roelof Koole
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Patent number: 10340427Abstract: The invention provides a luminescent material (10) based on quantum dots (100), wherein the quantum dots (100) have inorganic capping agents (110), wherein the luminescent material (10) comprises particles (12) having an inorganic salt matrix (14) hosting the quantum dots (100) with inorganic capping agents (110), wherein the luminescent quantum dots (100) have an outer layer (105). The invention also provides a method for the production of such luminescent material (10). The new luminescent material can be used and processed as conventional particulate luminescent material.Type: GrantFiled: January 29, 2015Date of Patent: July 2, 2019Assignee: Lumileds LLCInventors: Patrick John Baesjou, Stefan Willi Julius Gruhlke, Roelof Koole, Johannes Franciscus Maria Cillessen
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Patent number: 10287490Abstract: The invention provides a process for the production of a wavelength converter containing a siloxane polymer matrix with wavelength converter nano particles embedded therein, the process containing (a) mixing (i) a first liquid containing (i1) short chain siloxane polymers and (i2) wavelength converter nano particles having an outer surface grafted with siloxane grafting ligands and (ii) curable siloxane polymers, and (b) curing the curable siloxane polymers, thereby producing the wavelength converter (100); wherein the short chain siloxane polymers have s1 Si backbone elements, wherein the siloxane grafting ligands comprise siloxane grafting ligands having x1 Si backbone elements, wherein at least one Si backbone element of each siloxane grafting ligand comprises a group having a grafting functionality; and wherein the curable siloxane polymers have y1 Si backbone elements, wherein x1/s1?0.8, s1<y1 and wherein x1<y1.Type: GrantFiled: September 24, 2013Date of Patent: May 14, 2019Assignee: LUMILEDS LLCInventors: Marcel Rene Bohmer, Roelof Koole, Patrick John Baesjou, Rifat Ata Mustafa Hikmet
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Patent number: 10240250Abstract: A graphoepitaxy template to align a self-assembled block polymer adapted to self-assemble into a 2-D array having parallel rows of discontinuous first domains extending parallel to a first axis, mutually spaced along an orthogonal second axis, and separated by a continuous second domain. The graphoepitaxy template has first and second substantially parallel side walls extending parallel to and defining the first axis and mutually spaced along the second axis to provide a compartment to hold at least one row of discontinuous first domains of the self-assembled block copolymer on the substrate between and parallel to the side walls, and separated therefrom by a continuous second domain. The compartment has a graphoepitaxial nucleation feature arranged to locate at least one of the discontinuous first domains at a specific position within the compartment. Methods for forming the graphoepitaxy template and its use for device lithography are also disclosed.Type: GrantFiled: October 2, 2012Date of Patent: March 26, 2019Assignee: ASML Netherlands B.V.Inventors: Thanh Trung Nguyen, Jozef Maria Finders, Wilhelmus Sebastianus Marcus Maria Ketelaars, Sander Frederik Wuister, Eddy Cornelis Antonius Van der Heijden, Hieronymus Johannus Christiaan Meessen, Roelof Koole, Emiel Peeters, Christianus Martinus Van Heesch, Aurelie Marie Andree Brizard, Henri Marie Joseph Boots, Tamara Druzhinina, Jessica Margaretha De Ruiter
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Patent number: 10222693Abstract: A method of aligning a template and a substrate for imprint lithography involves using a mask pattern of the template and a luminescent marker pattern of the substrate, the method including aligning the template mask pattern and the substrate marker pattern using a radiation intensity measurement of radiation emitted by the luminescent marker pattern and having passed the template mask pattern. The mask pattern and the luminescent marker pattern may each be shaped to provide a turning point in the intensity of detected radiation emitted from the marker pattern, and passing through the mask pattern to a detector, as a function of relative displacement at the aligned position. The displacement of the template and substrate may be aligned by identifying the turning point in radiation intensity. The marker pattern may be fluorescent with the emitted radiation excited by a radiation source.Type: GrantFiled: July 22, 2011Date of Patent: March 5, 2019Assignee: ASML Netherlands B.V.Inventors: Johan Frederik Dijksman, Anke Pierik, Sander Frederik Wuister, Roelof Koole
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Patent number: 10190042Abstract: A silicone product, a lighting unit comprising the silicone product, and a method of manufacturing a silicone product are provided. The silicone product comprises polymeric material, luminescent material and filler particles. The polymeric material comprises a material of the group of polysiloxanes. The polymeric material being light transmitting. The luminescent material comprises particles which have at least in one dimension a size in the nanometer range. The luminescent material is configured to absorb light of a first spectral range and to convert a portion of the absorbed light into light of a second spectral range. The filler particles are of a light transmitting inert material. The filler particles are miscible with the luminescent material. The filler particles are provided in the polymeric material. The particles of luminescent material are distributed along a surface of the filler particles.Type: GrantFiled: June 20, 2016Date of Patent: January 29, 2019Assignee: Lumileds LLCInventors: Antonius Wilhelmus Maria Delaat, Roelof Koole, Marcel Rene Bohmer
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Patent number: 10156325Abstract: The invention provides a lighting device for providing light, the lighting device comprising a closed chamber with a light transmissive window and a light source configured to provide light source radiation into the chamber, wherein the chamber further encloses a wavelength converter configured to convert at least part of the light source radiation into wavelength converter light, wherein the light transmissive window is transmissive for the wavelength converter light, wherein the wavelength converter comprises luminescent quantum dots which upon excitation with at least part of the light source radiation generate at least part of the wavelength converter light, and wherein the closed chamber comprises a filling gas comprising one or more of helium gas, hydrogen gas, nitrogen gas or oxygen gas, the filling gas having a relative humidity at 19° C. of at least 5%.Type: GrantFiled: September 16, 2015Date of Patent: December 18, 2018Assignee: Lumileds LLCInventors: Roelof Koole, Dirk Veldman, Marcel Rene Bohmer, Kentaro Shimizu, Loes Johanna Mathilda Koopmans, Cornelis Eustatius Timmering
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Publication number: 20180340674Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with luminescent quantum dots embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the luminescent quantum dots and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said luminescent quantum dots and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.Type: ApplicationFiled: June 1, 2018Publication date: November 29, 2018Inventors: Roelof Koole, Marcel Rene Bohmer, Jan Cornelis Kriege, Godefridus Johannes Verhoeckx, Paulus Hubertus Gerardus Offermans, Patrick John Baesjou, Wilhelmus Cornelis Keur, Johannes Franciscus Maria Cillessen, Emile Johannes Karel Verstegen, Antonius Wilhelmus Maria De Laat
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Patent number: 10050184Abstract: The invention provides a lighting device comprising (a) a light converter comprising a light receiving face; and (b) a solid state light source configured to generate a light source light with a photon flux of at least 10 W/cm2 at the light receiving face, wherein the light converter is configured to convert at least part of the light source light into light converter light having a first frequency, wherein the light converter comprises a semiconductor quantum dot in an optical structure selected from a photonic crystal structure and a plasmonic structure, wherein the optical structure is configured to increase the photon density of states in the light converter resonant with the first frequency for reducing saturation quenching, and wherein the quantum dot has a quantum efficiency of at least 80%.Type: GrantFiled: April 8, 2015Date of Patent: August 14, 2018Assignee: Lumileds LLCInventors: Roelof Koole, Manuela Lunz, Dirk Veldman, Patrick John Baesjou
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Patent number: 10035952Abstract: The invention provides a process for the production of a light converter comprising a siloxane polymer matrix with light converter nano particles embedded therein, the process comprising (a) mixing (i) light converter nano particles having an outer surface grafted with grafting ligands and (ii) curable siloxane polymers, and (b) curing the curable siloxane polymers, thereby producing the light converter; wherein the grafting ligands comprise siloxane grafting ligands having x1 Si backbone elements, wherein at least one Si backbone element of each siloxane grafting ligand comprises a side group having a grafting functionality; wherein the curable siloxane polymers have y1 Si backbone elements; and wherein x1 is at least 20, wherein y1 is at least 2, and wherein x1/y1?0.8.Type: GrantFiled: October 23, 2013Date of Patent: July 31, 2018Assignee: Lumileds LLCInventors: Roelof Koole, Rifat Ata Mustafa Hikmet, Patrick John Baesjou, Marcel Rene Bohmer, Johan Lub
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Patent number: 10030851Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with luminescent quantum dots embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the luminescent quantum dots and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said luminescent quantum dots and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.Type: GrantFiled: March 19, 2014Date of Patent: July 24, 2018Assignee: Lumileds LLCInventors: Roelof Koole, Marcel Rene Bohmer, Jan Cornelis Kriege, Godefridus Johannes Verhoeckx, Paulus Hubertus Gerardus Offermans, Patrick John Baesjou, Wilhelmus Cornelis Keur, Johannes Franciscus Maria Cillessen, Emile Johannes Karel Verstegen, Antonius Wilhelmus Maria De Laat
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Publication number: 20180198033Abstract: The present invention relates to a device for emitting light comprising a light generating element for generating light, a coating layer for converting the light generated by the light generating element, the coating layer being dispensed on a top surface of the light generating element, wherein the coating layer comprises a nano-composite including a plurality of nano-particles, a dispersion medium for dispersing the plurality of nano-particles, and a first composition comprising a weak acid or a salt thereof.Type: ApplicationFiled: June 29, 2016Publication date: July 12, 2018Inventors: Marcel Bohmer, Roelof Koole
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Patent number: 9905709Abstract: The present invention relates to a photovoltaic cell device with combined energy conversion and lighting option and a method a controlling such a device. It comprises a responsive element, a reflector or a light source for changing light absorption and thus appearance of photovoltaic cells (e.g. solar panel). It is also possible to combine the responsive element or the reflector with light source(s) providing extra illumination. When combined with a sensor and control unit, ambient intelligent solar panels and ambient intelligent lighting systems can be obtained. A combination of a luminescent solar concentrator (LSC) and light-emitting device is also possible, where an energy storage device is charged by a photovoltaic cell upon irradiation. The energy storage powers one or more light sources which are coupled to the sides of the luminescent plate. The light emitted by the light sources is coupled into the plate and (partly) converted by the luminescent plate.Type: GrantFiled: March 10, 2011Date of Patent: February 27, 2018Assignee: PHILIPS LIGHTING HOLDINGS B.V.Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet, Roelof Koole, Dirk Kornelis Gerhardus De Boer
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Publication number: 20170306221Abstract: The invention provides a process for the production of a (particulate) luminescent material comprising particles, especially substantially spherical particles, having a porous inorganic material core with pores, especially macro pores, which are at least partly filled with a polymeric material with a first material embedded therein, wherein the process comprises (i) impregnating the particles of a particulate porous inorganic material with pores with a first liquid (“ink”) comprising the first material and a curable or polymerizable precursor of the polymeric material, to provide pores that are at least partly filled with said first material and curable or polymerizable precursor; and (ii) curing or polymerizing the curable or polymerizable precursor within pores of the porous material, as well as a product obtainable thereby.Type: ApplicationFiled: September 22, 2015Publication date: October 26, 2017Applicant: PHILIPS LIGHTING HOLDING B.V.Inventors: ROELOF KOOLE, PATRICK JOHN BAESJOU, ELISE CLAUDE VALENTINE TALGORN, JAN CORNELIS KRIEGE, JOHANNES FRANCISCUS MARIA CILLESSEN, JOHAN LUB, RIFAT ATA MUSTAFA HIKMET
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Publication number: 20170276300Abstract: The invention provides a lighting device for providing light, the lighting device comprising a closed chamber with a light transmissive window and a light source configured to provide light source radiation into the chamber, wherein the chamber further encloses a wavelength converter configured to convert at least part of the light source radiation into wavelength converter light, wherein the light transmissive window is transmissive for the wavelength converter light, wherein the wavelength converter comprises luminescent quantum dots which upon excitation with at least part of the light source radiation generate at least part of the wavelength converter light, and wherein the closed chamber comprises a filling gas comprising one or more of helium gas, hydrogen gas, nitrogen gas or oxygen gas, the filling gas having a relative humidity at 19° C. of at least 5%.Type: ApplicationFiled: September 16, 2015Publication date: September 28, 2017Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Roelof Koole, Dirk Veldman, Marcel Rene Bohmer, Kentaro Shimizu, Loes Johanna Mathilda Koopmans, Cornelis Eustatius Timmering