Patents by Inventor Maciej Dawid PAKULSKI

Maciej Dawid PAKULSKI 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).

  • Efficient white lamp for vehicle headlight
    Patent number: 10527247
    Abstract: An incandescent lamp for a vehicle headlight comprising a transparent vessel that encloses at least one filament and the vessel is at least partly covered with a coating. The coating comprises at least one pigment, which is arranged such that light emitted by the at least one filament and traversing the coating is transformed to transformed light. The transformed light is characterized by a chromaticity according to the CIE 1931 xy-chromaticity with y being in between the Planckian locus and y=0.5*x+0.205 and 0.36<x<0.42, and wherein the at least one pigment comprises a mixture of Co—Al oxide and Co—Al—Cr oxide, the mixture being characterized by a ratio of a concentration in mass percentage Cm(Co—Al oxide) of Co—Al oxide and a concentration in mass percentage Cm(Co—Al—Cr oxide) of Co—Al—Cr oxide in the coating of 90/10?Cm(Co—Al oxide)/Cm(Co—Al—Cr oxide)?30/70.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: January 7, 2020
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Jacek Kowalski, Jean-Sebastien Straetmans, Lukas Kuepper, Maciej Dawid Pakulski
  • EFFICIENT WHITE LAMP FOR VEHICLE HEADLIGHT
    Publication number: 20190316750
    Abstract: An incandescent lamp for a vehicle headlight comprising a transparent vessel that encloses at least one filament and the vessel is at least partly covered with a coating. The coating comprises at least one pigment, which is arranged such that light emitted by the at least one filament and traversing the coating is transformed to transformed light. The transformed light is characterized by a chromaticity according to the CIE 1931 xy-chromaticity with y being in between the Planckian locus and y=0.5*x+0.205 and 0.36<x<0.42, and wherein the at least one pigment comprises a mixture of Co—Al oxide and Co—Al—Cr oxide, the mixture being characterized by a ratio of a concentration in mass percentage Cm(Co—Al oxide) of Co—Al oxide and a concentration in mass percentage Cm(Co—Al—Cr oxide) of Co—Al—Cr oxide in the coating of 90/10?Cm(Co—Al oxide)/Cm(Co—Al—Cr oxide)?30/70.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 17, 2019
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Jacek KOWALSKI, Jean-Sebastien STRAETMANS, Lukas KUEPPER, Maciej Dawid PAKULSKI