Patents by Inventor Margaretha M. Kok

Margaretha M. Kok 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).

  • Light guide, patterned light emitting diode device, illumination system and method of generating the light guide or patterned light emitting diode device
    Patent number: 8605234
    Abstract: The invention relates to a light guide (10), a patterned light emitting diode device, to an illumination system (100) and to a method of generating a light guide and/or patterned light emitting diode device. The light guide comprising a light-emitting window (20), a rear wall (22) situated opposite said light-emitting window, edge walls (24) extending between the light-emitting window and the rear wall. The light guide further comprises a deformable substantially transparent layer (30) arranged between a light-reflective layer (40) and the rear wall of the light guide. The light-reflective layer comprises a pattern (42) constituted of local deformations (42A, 42B) of the light-reflective layer for scattering impinging light.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: December 10, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Coen A. Verschuren, Margaretha M. Kok
  • LIGHT GUIDE, PATTERNED LIGHT EMITTING DIODE DEVICE, ILLUMINATION SYSTEM AND METHOD OF GENERATING THE LIGHT GUIDE OR PATTERNED LIGHT EMITTING DIODE DEVICE
    Publication number: 20110228551
    Abstract: The invention relates to a light guide (10), a patterned light emitting diode device, to an illumination system (100) and to a method of generating a light guide and/or patterned light emitting diode device. The light guide comprising a light-emitting window (20), a rear wall (22) situated opposite said light-emitting window, edge walls (24) extending between the light-emitting window and the rear wall. The light guide further comprises a deformable substantially transparent layer (30) arranged between a light-reflective layer (40) and the rear wall of the light guide. The light-reflective layer comprises a pattern (42) constituted of local deformations (42A, 42B) of the light-reflective layer for scattering impinging light.
    Type: Application
    Filed: November 30, 2009
    Publication date: September 22, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Coen A. Verschuren, Margaretha M. Kok