Patents by Inventor Cornelis Johannes Maria Denissen
Cornelis Johannes Maria Denissen 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: 10976479Abstract: The invention provides a lighting device (1) comprising: —one or more light sources (10) configured to provide light source light (11); —a luminescent element (5) comprising an elongated light transmissive body (100); the elongated light transmissive body (100) comprising a luminescent material (120) configured to convert at least part of light source light (11) received at one or more radiation input faces (111) into luminescent material light (8), and the luminescent element (5) configured to couple at least part of the luminescent material light (8) out at the first radiation exit window (112) as converter light (101); wherein the light transmissive body (100) has a first index of refraction n1; —a beam shaping optical element (224) optically coupled with the first radiation exit window (112), the beam shaping optical element comprising a radiation entrance window (211) configured to receive at least part of the converter light (101); wherein the beam shaping optical element (224) has a second index of refType: GrantFiled: March 15, 2018Date of Patent: April 13, 2021Assignee: SIGNIFY HOLDING B.V.Inventors: Cornelis Johannes Maria Denissen, Dirk Kornelis Gerhardus De Boer, Hendrik Johannes Boudewijn Jagt, Leendert Van Der Tempel, Gerald Frederik Belder, Johannes Martinus Jansen
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Publication number: 20200088927Abstract: The invention provides a lighting device (1) comprising: —one or more light sources (10) configured to provide light source light (11); —a luminescent element (5) comprising an elongated light transmissive body (100); the elongated light transmissive body (100) comprising a luminescent material (120) configured to convert at least part of light source light (11) received at one or more radiation input faces (111) into luminescent material light (8), and the luminescent element (5) configured to couple at least part of the luminescent material light (8) out at the first radiation exit window (112) as converter light (101); wherein the light transmissive body (100) has a first index of refraction n1; —a beam shaping optical element (224) optically coupled with the first radiation exit window (112), the beam shaping optical element comprising a radiation entrance window (211) configured to receive at least part of the converter light (101); wherein the beam shaping optical element (224) has a second index of refType: ApplicationFiled: March 15, 2018Publication date: March 19, 2020Inventors: CORNELIS JOHANNES MARIA DENISSEN, DIRK KORNELIS GERHARDUS DE BOER, HENDRIK JOHANNES BOUDEWIJN JAGT, LEENDERT VAN DER TEMPEL, GERALD FREDERIK BELDER, JOHANNES MARTINUS JANSEN
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Patent number: 9142396Abstract: The invention relates to a ceramic metal halide lamp having a ceramic discharge vessel, characterized in that the discharge vessel encloses a discharge space which comprises an electrode, which electrode is electrically connected to a conductor outside the discharge vessel by means of a feedthrough comprising an Ir wire, the feedthrough being gas-tight mounted in an extended plug, also referred to as vup, of the discharge vessel, the feedthrough comprising an electrode—feedthrough combination made up of at least three parts with a W or W—Re rod or a Mo or Mo alloy wire extending out of the vup for burner mounting, which W or W—Re or MO or MO alloy wire is welded to the Ir wire.Type: GrantFiled: March 31, 2011Date of Patent: September 22, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cornelis Johannes Maria Denissen, Georges Marie Calon, Jeroen Waltherus Johannes Schoone, Geert Antoon Parton, Josephus Christiaan Maria Hendricx
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Patent number: 9093257Abstract: Disclosed is a lamp comprising a ceramic discharge vessel (3) with end parts (34) and with electrodes (4) which are connected to a respective external contact via a respective feedthrough (20). Each feedthrough is sealed with a sealing part (40) thereof by a sealing compound (10) in the end part. The discharge vessel gastightly encloses a discharge space into which said two electrodes extend from the end part and which contains an ionizable filling. The sealing compound comprises at least one first component chosen from the group consisting of ruthenium (Ru), iridium (Ir), osmium (Os) and rhenium (Re), and comprises at least one second component chosen from the group consisting of silicium (Si), boron (B), phosphor (P). Thus, a halide resistant lamp vessel is obtained exhibiting excellent lifetime characteristics and long lifetimes.Type: GrantFiled: April 27, 2012Date of Patent: July 28, 2015Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cornelis Johannes Maria Denissen, Martinus Joseph Maria Kessels, Ton Reinier Mulderij
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Publication number: 20140062295Abstract: Disclosed is a lamp comprising a ceramic discharge vessel (3) with end parts (34) and with electrodes (4) which are connected to a respective external contact via a respective feedthrough (20). Each feedthrough is sealed with a sealing part (40) thereof by a sealing compound (10) in the end part. The discharge vessel gastightly encloses a discharge space into which said two electrodes extend from the end part and which contains an ionizable filling. The sealing compound comprises at least one first component chosen from the group consisting of ruthenium (Ru), iridium (Ir), osmium (Os) and rhenium (Re), and comprises at least one second component chosen from the group consisting of silicium (Si), boron (B), phosphor (P). Thus, a halide resistant lamp vessel is obtained exhibiting excellent lifetime characteristics and long lifetimes.Type: ApplicationFiled: April 27, 2012Publication date: March 6, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Cornelis Johannes Maria Denissen, Martinus Joseph Maria Kessels, Ton Reinier Mulderij
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Publication number: 20130026914Abstract: The invention relates to a ceramic metal halide lamp having a ceramic discharge vessel, characterized in that the discharge vessel encloses a discharge space which comprises an electrode, which electrode is electrically connected to a conductor outside the discharge vessel by means of a feedthrough comprising an Ir wire, the feedthrough being gas-tight mounted in an extended plug, also referred to as vup, of the discharge vessel, the feedthrough comprising an electrode—feedthrough combination made up of at least three parts with a W or W—Re rod or a Mo or Mo alloy wire extending out of the vup for burner mounting, which W or W—Re or MO or MO alloy wire is welded to the Ir wire.Type: ApplicationFiled: March 31, 2011Publication date: January 31, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Cornelis Johannes Maria Denissen, Georges Marie Calon, Jeroen Waltherus Johannes Schoone, Geert Antoon Parton, Josephus Christiaan Maria Hendricx
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Patent number: 8093815Abstract: A high-pressure discharge lamp and a reflector lamp including a discharge vessel enclosing a discharge space which is provided with an ionizable filling comprising one or more halides. The discharge vessel is substantially constituted by a ceramic material having first and second end portions. Current-supply conductors issue through each end portion to respective electrodes arranged in the discharge space so as to maintain a discharge. At least one of the current-supply conductors is formed as a rod including iridium. The rod is directly sealed to the ceramic material.Type: GrantFiled: December 14, 2007Date of Patent: January 10, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Josephus Christiaan Maria Hendricx, Peter Jozef Vrugt, Franciscus Johannes Gerardus Hakkens, Cornelis Johannes Maria Denissen
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Publication number: 20090267515Abstract: The invention relates to a high-pressure discharge lamp (12), and a reflector lamp. The high-pressure discharge lamp has a discharge vessel (22, 61) enclosing a discharge space (24) which is provided with an ionizable filling comprising one or more halides. The discharge vessel is substantially constituted by a ceramic material (51, 52) having first and second end portions (33, 34). Current-supply conductors (44) issue through each end portion to respective electrodes (42) arranged in the discharge space (24) so as to maintain a discharge. At least one of the current-supply conductors is formed as a rod (44) comprising iridium. The rod is directly sealed to the ceramic material. Use of the iridium rod which is directly sealed to the ceramic material has the effect that the interface between the rod and the ceramic material is strong and substantially free from cracks, resulting in a longer lifetime of the high-pressure discharge lamp.Type: ApplicationFiled: December 14, 2007Publication date: October 29, 2009Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Josephus Christiaan Maria Hendricx, Peter Jozef Vrugt, Franciscus Johannes Gerardus Hakkens, Cornelis Johannes Maria Denissen
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Publication number: 20090072743Abstract: An electric discharge lamp comprising: —a translucent ceramic lamp vessel; —a first and a second current conductor, each supporting an electrode in the lamp vessel; —an ionizable filling comprising a rare gas and metal halide in the lamp vessel; at least the first current conductor being halide-resistant, characterized in that the first current conductor forms an end cap of the lamp vessel, wherein said end cap is made of a metal selected from the group consisting of molybdenum, tungsten, iridium, rhodium, and rhenium, or an alloy thereof, and wherein said end cap is sealed onto the lamp vessel provided with a cermet layer comprising 10-60 vol. % molybdenum and 90-40 vol. % Al2O3.Type: ApplicationFiled: October 20, 2005Publication date: March 19, 2009Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: Mark Bolech, Gerald Frederik Belder, Bart Theresia Verlinden, Sigrid Maria Roman Gelderland, Martinus Joseph Maria Kessels, Andreas Sebastianus Gertrudis Geven, Antonius Cornelis Van Amstel, Cornelis Johannes Maria Denissen
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Publication number: 20080297051Abstract: An electric discharge lamp comprising: a light-transmissive ceramic lamp vessel; a first and a second current conductor entering the lamp vessel and each supporting an electrode in the lamp vessel; a sealing compound sealing the lamp vessel around the current conductors in a gastight manner, said sealing compound at least substantially comprising a noble metal; an ionizable filling comprising a rare gas and metal halide in the lamp vessel; at least the first current conductor comprising niobium, characterized in that said first current conductor is coated with a material 10 selected from the group consisting of NbN, NbB2, NbSi2, and NbC.Type: ApplicationFiled: June 29, 2005Publication date: December 4, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventor: Cornelis Johannes Maria Denissen
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Patent number: 6646365Abstract: A low-pressure mercury-vapor discharge lamp has a discharge vessel with a filling of mercury and an inert gas. Electrodes in the discharge space have electrode shields, which operate at temperatures above 450° C. An inner surface of the electrode shield may have a heat-absorbing coating, for example a carbon film. The electrode shield may be supported by a support wire, at least a part of which is made from stainless steel. A lamp according to the invention has comparatively low mercury consumption.Type: GrantFiled: November 20, 2000Date of Patent: November 11, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Cornelis Johannes Maria Denissen, Cornelis Reinder Ronda, Volker Ulrich Weiler, Klaus Gawron
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Patent number: 6417614Abstract: A low-pressure mercury vapor discharge lamp comprises a discharge vessel (10) having a tubular portion (11). The discharge vessel (10) encloses a discharge space (13) provided with a filling of mercury and a rare gas in a gastight manner. The tubular portion (13) of the discharge vessel (10) is provided with a metal oxide layer (15) and a luminescent layer (17) on a surface (14) facing the discharge space (13). The discharge lamp comprises means for maintaining an electric discharge in the discharge vessel (20b). The discharge lamp is characterized in that the luminescent layer (17) comprises an alkali metal oxide. This alkali metal oxide is preferably sodium oxide and/or potassium oxide, and the concentration of the alkali metal oxide is 0.002≦Na2O≦0.1% by weight and/or 0.002≦K2O ≦0.1% by weight. The tubular portion (11) of the discharge vessel (10) preferably has a further metal oxide layer which acts as an alkali metal-repellent layer.Type: GrantFiled: April 27, 2000Date of Patent: July 9, 2002Assignee: Koninklijke Philips Electronics N.V.Inventors: Cornelis Reinder Ronda, Cornelis Johannes Maria Denissen, Volker Ulrich Weiler