Patents by Inventor René Theodorus WEGH
René Theodorus WEGH 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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Publication number: 20130342101Abstract: A luminescent product 100, a lamp and a light source are provided for converting light of a first color into light of a second color. The luminescent product 100 comprises a matrix polymer 108 and another material 106. The matrix polymer 108 comprises a luminescent material which converts light of a first color into light of a second color. The another material 106 is light transmitting. The luminescent product 100 is at least partially light transmitting and the matrix polymer has a three dimensional structure which has multiple surfaces being an interface between the matrix polymer and the another material to allow, in use, a light beam 104, which impinges on a side 102 of the luminescent product 100, to pass at least four times an interface between the matrix polymer 108 and the another material 106 before at least a part of the light beam 104 leaves the luminescent product 100 at another side 110 of the luminescent product 100.Type: ApplicationFiled: February 28, 2012Publication date: December 26, 2013Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Rifat Ata Mustafa Hikmet, Godefridus Johannes Verhoeckx, Ties Van Bommel, René Theodorus Wegh
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Patent number: 8567974Abstract: The invention provides an illumination device (100) comprising a translucent exit window (200), one or more transmissive windows (300), arranged upstream from LED(s) and downstream from the translucent exit window (200), and one or more luminescent material layers (400), which may particularly be coated to the downstream and upstream faces of the transmissive windows (300).Type: GrantFiled: February 23, 2009Date of Patent: October 29, 2013Assignee: Koninklijke Philips N.V.Inventors: Christoph Gerard August Hoelen, Josephus Paulus Augustinus Deeben, George Hubert Borel, Vicky Lammens, Matthijs Hendrik Keuper, Rene Theodorus Wegh, Lars Rene Christian Waumans
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Publication number: 20130271955Abstract: The invention provides a lighting device (1) comprising (a) a light source (100), for producing light source light (110), and (b) a transparent converter device (200), for converting at least part of the light source light (110), wherein the transparent converter device (200) comprises a first polymer containing matrix (201) containing discrete particles (210), wherein the discrete particles (210) comprise a second polymer containing matrix with luminescent material (212) dispersed therein.Type: ApplicationFiled: December 15, 2011Publication date: October 17, 2013Applicant: Koninklijke Philips Electronics N.V.Inventors: Ties Van Bommel, Rifat Ata Mustafa Ata Mustafa Hikmet, Roy Gerardus Franciscus Antonius Verbeek, René Theodorus Wegh, Josephus Paulus Augustinus Deeben
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Publication number: 20130187537Abstract: The invention provides a light-emitting arrangement, comprising: a light source adapted to emit light of a first wavelength; a wavelength converting member comprising an organic wavelength converting compound adapted to receive light of said first wavelength and to convert at least part of the received light to light of a second wavelength, said wavelength converting member and said light source being mutually spaced apart; and a sealing structure at least partially surrounding said wavelength converting member to form a sealed cavity containing at least said wavelength converting member, said sealed cavity containing an inert gas and oxygen gas, the concentration of oxygen gas being in the range of from 0.05 to 3% based on the total volume within said sealed cavity. An oxygen concentration in this range has been found to have very limited influence on the life time of the organic wavelength converting compound.Type: ApplicationFiled: September 20, 2011Publication date: July 25, 2013Applicant: Koninklijke Philips Electronics N.V.Inventors: Rifat Ata Mustafa Hikmet, Johannes Franciscus Maria Cillessen, René Theodorus Wegh
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Publication number: 20130182409Abstract: The invention provides a light-emitting arrangement (100) comprising a light source (105) adapted to emit light of a first wavelength, and a wavelength converting member (106) arranged to receive light of said first wavelength and adapted to convert at least part of the light of said first wavelength to light of a second wavelength, said wavelength converting member comprising i) a carrier polymeric material comprising a polyester backbone comprising an aromatic moiety, and ii) at least one wavelength converting material of a specified general formula. The perylene derived compounds have been found to have excellent stability when incorporated into said matrix material.Type: ApplicationFiled: September 21, 2011Publication date: July 18, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Johan Lub, Rifat Ata Mustafa Hikmet, Rene Theodorus Wegh
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Patent number: 8481130Abstract: The invention relates to an alignment layer with improved adhesion to liquid crystal (LC) films, to a precursor material used for the preparation of such a layer, to a laminate comprising such a layer and at least one LC polymer film, and to the use of the alignment layer and the laminate for optical, electrooptical, decorative or security uses and devices, wherein the alignment layer and the precursor material comprise at least one reactive mesogen in monomeric, oligomeric or polymeric form.Type: GrantFiled: September 13, 2012Date of Patent: July 9, 2013Assignee: MERCK PATENT GmbHInventors: Richard Harding, Alison Linda May, Simon Greenfield, Johan Lub, Ciska Doornkamp, Rene Theodorus Wegh
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Patent number: 8463358Abstract: A method for MRI imaging to obtain information about a local physiochemical parameter after administration to a patient of a contrast agent including at least one non-responsive contrast enhancing entity that does not occur naturally in a human body and at least one responsive contrast enhancing entity attached to or mixed with the non-responsive contrast enhancing entity. By using such non-responsive contrast enhancing entities, a value for the physicochemical parameter can be obtained by acquiring only three images, providing a method which will be easier to apply in a clinical routine, since it will be faster and less sensitive to motion or flow artifacts.Type: GrantFiled: June 8, 2007Date of Patent: June 11, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Rudolf Mathias Johannes Nicolaas Lamerichs, Rene Theodorus Wegh, Jeroen Alphons Pikkemaat, Holger Gruell
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Publication number: 20130092969Abstract: This invention relates to a light emitting diode device (100) including an outer casing (102), a light emitting diode element (114), which includes at least one light emitting diode (114a), arranged within the outer casing, a light outlet member (108) constituting a part of the outer casing, a sealed cavity (104) containing a controlled atmosphere, and a seal (110) arranged to seal the cavity. The light emitting diode device further comprises a remote organic phosphor element (116) arranged in the sealed cavity.Type: ApplicationFiled: June 30, 2011Publication date: April 18, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Rifat Ata Mustafa Hikmet, Jan Cornelis Kriege, Johannes Franciscus Maria Cillessen, René Theodorus Wegh, Pieter Joseph Clara Van Der Wel, Rene Maarten Arjan Driessens
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Patent number: 8409674Abstract: The invention relates to an alignment layer for aligning liquid crystal molecules, with improved adhesion to liquid crystal (LC) films, to a composition containing a precursor material used for the preparation of such a layer, to a laminate comprising such a layer and at least one LC polymer film, and to the use of the alignment layer and the laminate for optical, electrooptical, decorative or security uses and devices, wherein the alignment layer and the precursor material comprise at least one reactive mesogen in monomeric, oligomeric or polymeric form.Type: GrantFiled: July 26, 2004Date of Patent: April 2, 2013Assignee: Merck Patent GmbHInventors: Richard Harding, Alison Linda May, Simon Greenfield, Johan Lub, Ciska Doornkamp, René Theodorus Wegh
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Publication number: 20130044457Abstract: The invention relates to a lighting apparatus comprising a conversion material (2) for converting primary light (4) into secondary light (5), wherein the conversion material (2) comprises converting photolummescent material (15), which degrades to non-converting photolummescent material over time when the conversion material (2) is illuminated by the primary light (4). The conversion material (2) is adapted such that, when the conversion material (2) is illuminated by the primary light (4), the relative decrease in concentration of the converting photolummescent material (15) within the conversion material (2) is larger than the relative decrease in intensity of the secondary light (5). This allows the lighting apparatus to provide an only slightly reduced absorbance of the primary light, even if a large part of the photolummescent material has been bleached, and thus a longer lifetime, with the same or a slightly reduced intensity of the secondary light.Type: ApplicationFiled: March 3, 2011Publication date: February 21, 2013Applicant: KONNINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: Rifat Ata Mustafa Hikmet, Jan Cornelis Kriege, Johannes Franciscus Maria Cillessen, René Theodorus Wegh
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Publication number: 20130012654Abstract: The invention relates to an alignment layer with improved adhesion to liquid crystal (LC) films, to a precursor material used for the preparation of such a layer, to a laminate comprising such a layer and at least one LC polymer film, and to the use of the alignment layer and the laminate for optical, electrooptical, decorative or security uses and devices, wherein the alignment layer and the precursor material comprise at least one reactive mesogen in monomeric, oligomeric or polymeric form.Type: ApplicationFiled: September 13, 2012Publication date: January 10, 2013Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V., MERCK PATENT GMBHInventors: Richard HARDING, Alison Linda MAY, Simon GREENFIELD, Johan LUB, Ciska DOORNKAMP, René Theodorus WEGH
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Patent number: 8348458Abstract: A light-emitting device comprises a light source adapted to emit light of a first wavelength range; a reflective body comprising a reflective layer; a wavelength converting layer comprising a wavelength converting material adapted to absorb light of said first wavelength range and to emit light of a second wavelength range, said wavelength converting layer and said light source being arranged mutually spaced apart; and light-scattering elements adapted to scatter light of at least said first wavelength range; wherein at least part of said light-scattering elements are arranged in the path of light from said light source to said wavelength converting layer. The light-emitting device according to the invention provides improved uniformity in color and also improved brightness uniformity.Type: GrantFiled: March 30, 2009Date of Patent: January 8, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Petrus Adrianus Josephus Holten, Vincent Fabriek, Giorgia Tordini, Rene Theodorus Wegh, Bart-hendrik Huisman
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Patent number: 8337031Abstract: The invention relates to a color-tunable illumination system (10), to a lamp and to a luminaire. The color-tunable illumination system comprises a light source (20) emitting light of a first predefined color (B), and comprises a luminescent material (30) for converting light of the first predefined color into light of a second predefined color (A). The color-tunable illumination system further comprises shielding means (40, 42) arranged for preventing at least part of the light emitted by the light source to impinge on the luminescent material. The light source, the luminescent material and/or the shielding means are changeable from a first situation to a second situation. In the first situation the color-tunable illumination system is arranged for shielding at least part of the luminescent material against impinging light of the first predefined color.Type: GrantFiled: May 5, 2008Date of Patent: December 25, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Rene Theodorus Wegh, Christoph Gerard August Hoelen, Chantal Sweegers, René Jan Hendriks, Martijn Henri Richard Lankhorst, Nicolas Gerardus Antonius Peeters, Martinus Petrus Joseph Peeters, Ramon Pascal Van Gorkom, Matthijs Hendrik Keuper, Coen Theodorus Hubertus Fransiscus Liedenbaum
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Patent number: 8310144Abstract: A luminair and a display device including a light emitting diode, a light exit window and a luminescent layer arranged between the light emitting diode and the light exit window. The light emitting diode emits light of a first primary color. The luminescent layer is arranged between the light emitting diode and the light exit window for converting part of the light emitted by the light emitting diode into light of a second primary color. The luminescent layer includes a garnet luminescent material of one of at least Lutetium, Cerium, Silicon and Nitrogen, or a combination of a garnet luminescent material of at least Lutetium and Cerium and a garnet luminescent material of at least Cerium and at least one of Yttrium and Gadolinium.Type: GrantFiled: October 15, 2007Date of Patent: November 13, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Christoph Gerard August Hoelen, Rene Theodorus Wegh, Jan Broere, Ludo Haenen
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Patent number: 8306603Abstract: The present invention provides a method MRI imaging. By applying a time modulation to the contrast enhancement of an MRI contrast agent, the method according to the invention leads to images with improved signal-to-noise ratio in the contrast-enhanced areas, strongly suppressed unwanted signal in the unenhanced areas, and reduced artefacts, such as motion artefacts.Type: GrantFiled: April 25, 2006Date of Patent: November 6, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Nicolaas Petrus Willard, Rene Theodorus Wegh, Jeroen Alphons Pikkemaat, Holger Gruell, Tobias Schaeffter, Rudolf Mathias Johannes Nicolaas Lamerichs
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Publication number: 20120155059Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.Type: ApplicationFiled: April 23, 2010Publication date: June 21, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
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Publication number: 20120119639Abstract: The invention relates to a luminescent converter (10, 12) for a phosphor-enhanced light source (100, 102, 104). The luminescent converter comprises a first luminescent material (20) configured for absorbing at least a part of excitation light (hv0) emitted by a light emitter (40, 42) of the phosphor-enhanced light source, and for converting at least a part of the absorbed excitation light into first emission light (hv1) comprising a longer wavelength compared to the excitation light. The luminescent converter further comprising a second luminescent material (30) comprising organic luminescent material (30) and configured for absorbing at least a part of the first emission light emitted by the first luminescent material, and for converting at least a part of the absorbed first emission light into second emission light (hv2) having a longer wavelength compared to the first emission light.Type: ApplicationFiled: March 31, 2010Publication date: May 17, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Cornelia Titia Staats, Gerardus Arnoldus Rita Van Dijk, Rene Theodorus Wegh, Willibrordus Hubertus, Martinus, Maria Van De Spijker, Martinus Petrus Joseph Peeters
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Patent number: 8172415Abstract: The invention relates to a color-tunable illumination system (10; 12; 14) and a luminaire. The color-tunable illumination system comprises a first light source comprising a first set of light emitting diodes (21, 24), and a second light source comprising a second set of light emitting diodes (31, 37, 34). Both the first and second light source emit light of substantially a first predefined color into a light mixing chamber (60). The light mixing chamber further comprises a first luminescent material (50) converting light of the first predefined color into light of a second predefined color. The first light source is positioned with respect to the first luminescent material for illuminating the first luminescent material with a first flux of light being part of the light emitted by the first light source into the light mixing chamber.Type: GrantFiled: May 20, 2008Date of Patent: May 8, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Rene Theodorus Wegh, Christoph Gerard August Hoelen, Chantal Sweegers, Rene Jan Hendriks, Martijn Henri Richard Lankhorst
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Publication number: 20120020051Abstract: The invention relates to an illumination system (10, 12), to a remote phosphor layer (30; 32, 34), to a scattering layer (32), to a luminaire (100), to a display device (300) and to a method of at least partially correcting a light emission characteristic of at least one light source (22) in the illumination system. The illumination system comprises an array of light sources (20) and a remote phosphor layer and/or a scattering layer arranged between the array of light sources and a light output window (40) for emitting the light from the light sources. At least one light source of the array of light sources comprises a light emission characteristic different from the other light sources of the array of light sources.Type: ApplicationFiled: January 21, 2010Publication date: January 26, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Gerardus Arnoldus Rita Van Dijk, Andreas Martinus Theodorus Paulus Van Der Putten, Rene Theodorus Wegh, Martinus Petrus Joseph Peeters, René Jan Hendriks
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Patent number: 8097347Abstract: A light-emitting electrochemical cell includes at least two electrodes, and an electroluminescent material arranged between the two electrodes. The electroluminescent material includes a charged metal complex. The charged metal complex has at least one metal atom selected from the group consisting of Ir, Os, Pt, Re and Zn, with the proviso that the metal complex is different from [Ir(ppy)2(dtb-bpy)]+(PF6?) and [Os(bpy)2(dppe)]2+(PF6?)2.Type: GrantFiled: July 13, 2005Date of Patent: January 17, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Rene Theodorus Wegh, Edward Allen Plummer, Luisa De Cola, Eduard Johannes Meijer