Patents by Inventor Gerardus Marinus Josephus Franciscus Luijks

Gerardus Marinus Josephus Franciscus Luijks 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).

  • LIGHTING DEVICE
    Publication number: 20100066269
    Abstract: The invention provides a lighting device which is color-variable without a substantial deviation from the black body locus of the light generated by the lighting device. The lighting device is also dimmable without a substantial shift of the color point of the light generated by the lighting device. The lighting device is based on at least two CDM lamps.
    Type: Application
    Filed: December 7, 2007
    Publication date: March 18, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Gerardus Marinus Josephus Franciscus Luijks, Wouter Edgard Koen Broeckx, Mikhail Sorokin, Joseph Leonardus Gregorius Suijker, Denis Joseph Carel Van Oers
  • Metal halide lamp
    Patent number: 7671537
    Abstract: A metal halide lamp includes a discharge vessel surrounded by an outer envelope with clearance and has a ceramic wall which encloses a discharge space filled with a filling comprising an inert gas, such as xenon (Xe), and an ionizable salt. In the discharge space, two electrodes are arranged whose tips have a mutual interspacing so as to define a discharge path between them. The ionizable salt comprises NaI, TlI, CaI2 and X-iodide wherein X is selected from the group comprising rare earth metals.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: March 2, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Johannes Jacobus Franciscus Geijtenbeek, Antonius Arnoldus Duisters, Theodorus Gerardus Marinus Maria Kappen, Joseph Leonardus Gregorius Suijker, Vincent Marco Fischer, Gerardus Marinus Josephus Franciscus Luijks, Hendrik Anton Van Esveld, Vital Louis Elisabeth Bruyndoncx
  • Metal Halide Lamp
    Publication number: 20080278077
    Abstract: A metal halide lamp 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 discharge path between them, with the special feature that said ionizable salt comprises NaI, TlI, CaI2 and X-iodide wherein X is selected from the group comprising rare earth metals.
    Type: Application
    Filed: March 1, 2005
    Publication date: November 13, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Johannes Jacobus Franciscus Geijtenbeek, Antonius Arnoldus Duisters, Theodorus Gerardus Marinus Maria Kappen, Joseph Leonardus Gregorius Suijker, Vincent Marco Fischer, Gerardus Marinus Josephus Franciscus Luijks, Hendrik Anton Van Esveld, Vital Louis Elisabeth Bruyndoncx
  • High-pressure discharge lamp
    Patent number: 7132800
    Abstract: A high-pressure discharge lamp has a discharge vessel that is enclosed, with an interspace, by an outer bulb. The end of the outer bulb is provided with a lamp cap. The lamp has an ignition circuit including a series connection of a glow starter and an ohmic impedance. The ohmic impedance is formed by a halogen incandescent lamp. The mutual orientation of the glow starter and the ohmic impedance is such that heat produced by the ohmic impedance is at least partly intercepted by the glow starter.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: November 7, 2006
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Hendrik Anton Van Esveld, Johan Leopold Victorina Hendrix, Gerardus Marinus Josephus Franciscus Luijks
  • High-pressure discharge lamp with ignition circuit including halogen incandescent lamp
    Patent number: 6661177
    Abstract: The invention relates to a high-pressure discharge lamp comprising a discharge vessel which is enclosed, with clearance, by an outer bulb. The outer bulb is closed at one end by a lamp cap. The lamp is provided with an ignition circuit including at least a series arrangement of a glow starter and an ohmic impedance. According to the invention, the ohmic impedance is formed by a halogen incandescent lamp.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: December 9, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Gerardus Marinus Josephus Franciscus Luijks, Johan Leopold Victorina Hendrix
  • Metal halide lamp
    Patent number: 6392343
    Abstract: The invention relates to a metal halide lamp having an outer bulb containing besides a discharge vessel a UV enhancer (UVE). The UVE has a ceramic wall and, according to the invention, is provided with a pair of internal electrodes. Preferably, at least one of the electrodes has an electrode winding with emitter.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: May 21, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Gerardus Marinus Josephus Franciscus Luijks, Martinus Joseph Maria Kessels
  • High-pressure discharge lamp
    Publication number: 20020047529
    Abstract: The invention relates to a high-pressure discharge lamp comprising a discharge vessel which is enclosed, with clearance, by an outer bulb. The outer bulb is closed at one end by a lamp cap. The lamp is provided with an ignition circuit including at least a series arrangement of a glow starter and an ohmic impedance. According to the invention, the ohmic impedance is formed by a halogen incandescent lamp.
    Type: Application
    Filed: August 7, 2001
    Publication date: April 25, 2002
    Inventors: Gerardus Marinus Josephus Franciscus Luijks, Johan Leopold Victorina Hendrix