Patents by Inventor Marinus Cornelis Raas
Marinus Cornelis Raas 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: 8575838Abstract: A ceramic burner, a ceramic metal halide lamp, and a method of sealing the ceramic burner is provided. The ceramic burner comprises a discharge vessel enclosing a discharge space that is provided with an ionizable filling comprising one or more halides. The discharge vessel comprises a ceramic wall arranged between a first and a second end portion. The first and the second end portion are arranged such that current supply conductors are passed through the end portions to respective electrodes arranged in the discharge space for maintaining a discharge. The ceramic wall of the discharge vessel comprises a tube for introducing the ionizable filling into the discharge vessel during manufacture of the ceramic burner. The tube projects from the ceramic wall and is provided with a gastight seal. The effect of using the tube is that it enables the gastight seal to be arranged away from the ceramic wall of the discharge vessel at a projecting end of the tube.Type: GrantFiled: December 13, 2007Date of Patent: November 5, 2013Assignee: Koninklijke Philips N.V.Inventors: Marinus Cornelis Raas, Franciscus Johannes Gerardus Hakkens, Durandus Kornelius Dijken, Adrianus Gerardus Maria De Nijs, Alexander Johannes Adrianus Cornelia Dorrestein, Josephus Christiaan Maria Hendricx, Peter Jozef Vrugt
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Patent number: 8120279Abstract: A color adjustable lamp may be controlled using a TRIAC dimmer circuit and includes a lamp driving circuit and two or more light sources. Each light source may output light having a different color. By setting an output intensity of each light source, light having a desired color may be output. A circuit or a processing unit of the lamp driving circuit may detect a set phase angle of the TRIAC dimmer circuit by determining a shape of the supplied alternating voltage. According to the determined shape, the circuit or processing unit controls a lamp driver circuit for each light source in order to control the intensity of the light output by each light source and set the color of the color adjustable lamp by adjusting the intensity of the light emitted by each light source.Type: GrantFiled: August 11, 2010Date of Patent: February 21, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Thijs Oosterbaan, Bernardus Lambertus Martinus Van Bakel, Joseph Franciscus Raymond Eijsermans, Nicola Bettina Pfeffer, Marinus Cornelis Raas
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Patent number: 8106590Abstract: Metal halide lamp suitable as projection lamp, for instance as a vehicle headlamp comprising a discharge vessel surrounded by an outer envelope with clearance and having a ceramic wall which encloses a discharge space filled with a filling comprising an inert gas, such as xenon (Xe), and an ionizable salt, wherein in said discharge space two electrodes are arranged whose tips have a mutual interspacing so as to define a discharge path between them, with the special feature that said ionizable salt comprises NaI, TlI, CaI2 and XI3 wherein X is selected from the group comprising rare earth metals.Type: GrantFiled: March 1, 2005Date of Patent: January 31, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Josephus Christiaan Maria Hendricx, Marinus Cornelis Raas
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Publication number: 20110050122Abstract: A color adjustable lamp may be controlled using a well-known TRIAC dimmer circuit. The color adjustable lamp comprises two or more light sources. Each light source may output light having a different color. By setting an output intensity of each light source, light having a desired color may be output. A circuit or a processing unit comprised in a lamp driving circuit may detect a set phase angle of the TRIAC dimmer circuit by determining a shape of the supplied alternating voltage. According to the determined shape, the circuit or processing unit controls a lamp driver circuit for each light source in order to control the intensity of the light output by each light source.Type: ApplicationFiled: August 11, 2010Publication date: March 3, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Thijs OOSTERBAAN, Bernardus Lambertus Martinus VAN BAKEL, Joseph Franciscus Raymond EIJSERMANS, Nicola Bettina PFEFFER, Marinus Cornelis RAAS
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Patent number: 7791289Abstract: A color adjustable lamp may be controlled using a well-known TRIAC dimmer circuit. The color adjustable lamp comprises two or more light sources. Each light source may output light having a different color. By setting an output intensity of each light source, light having a desired color may be output. A circuit or a processing unit comprised in a lamp driving circuit may detect a set phase angle of the TRIAC dimmer circuit by determining a shape of the supplied alternating voltage. According to the determined shape, the circuit or processing unit controls a lamp driver circuit for each light source in order to control the intensity of the light output by each light source.Type: GrantFiled: July 14, 2008Date of Patent: September 7, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Thijs Oosterbaan, Bernardus Lambertus Martinus Van Bakel, Joseph Franciscus Raymond Eijsermans, Nicola Bettina Pfeffer, Marinus Cornelis Raas
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Publication number: 20100026183Abstract: The invention relates to a ceramic burner (16), a ceramic metal halide lamp, and a method of sealing the ceramic burner. The ceramic burner comprises a discharge vessel (22) enclosing a discharge space (24) that is provided with an ionizable filling comprising one or more halides. The discharge vessel comprises a ceramic wall (30) arranged between a first and a second end portion (41, 42). The first and the second end portion are arranged such that current supply conductors (51, 52) are passed through the end portions to respective electrodes (53, 54) arranged in the discharge space for maintaining a discharge. The ceramic wall of the discharge vessel comprises a tube (66) for introducing the ionizable filling into the discharge vessel during manufacture of the ceramic burner. The tube projectes from the ceramic wall and is provided with a gastight seal (76).Type: ApplicationFiled: December 13, 2007Publication date: February 4, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Marinus Cornelis Raas, Franciscus Johannes Gerardus Hakkens, Durandus Kornelius Dijken, Adrianus Gerardus Maria De Nijs, Alexander Johannes Adrianus Cornelia Dorrestein, Josephus Christiaan Maria Hendricx, Peter Jozef Vrugt
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Publication number: 20080094003Abstract: A color adjustable lamp may be controlled using a well-known TRIAC dimmer circuit. The color adjustable lamp comprises two or more light sources. Each light source may output light having a different color. By setting an output intensity of each light source, light having a desired color may be output. A circuit or a processing unit comprised in a lamp driving circuit may detect a set phase angle of the TRIAC dimmer circuit by determining a shape of the supplied alternating voltage. According to the determined shape, the circuit or processing unit controls a lamp driver circuit for each light source in order to control the intensity of the light output by each light source.Type: ApplicationFiled: July 14, 2005Publication date: April 24, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: Thijs Oosterbaan, Bernardus Lambertus Martinus Van Bakel, Joseph Franciscus Raymond Eijsermans, Nicola Bettina Pfeffer, Marinus Cornelis Raas