Patents by Inventor Hugo Johan Comelissen

Hugo Johan Comelissen 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).

  • Patent number: 9960330
    Abstract: Application of a wavelength conversion element is substantially independent of the fabrication of a side-emitting light emitting device. In an example embodiment, the wavelength conversion element is situated around the periphery of a non-wavelength converting lightguide that is situated above the light emitting surface. One or more specular and/or diffusing reflectors are used to direct the light in the lightguide toward the wavelength conversion element at the periphery. In another embodiment, an interference filter may be used to provide predominantly side-emitted light at interfaces between the elements of the light emitting device.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: May 1, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Jianghong Yu, Nicolaas Joseph Martin Van Leth, Giovanni Cennini, Kenneth Vampola, Hugo Johan Comelissen
  • Publication number: 20160163938
    Abstract: Application of a wavelength conversion element is substantially independent of the fabrication of a side-emitting light emitting device. In an example embodiment, the wavelength conversion element is situated around the periphery of a non-wavelength converting lightguide that is situated above the light emitting surface. One or more specular and/or diffusing reflectors are used to direct the light in the lightguide toward the wavelength conversion element at the periphery. In another embodiment, an interference filter may be used to provide predominantly side-emitted light at interfaces between the elements of the light emitting device.
    Type: Application
    Filed: July 9, 2014
    Publication date: June 9, 2016
    Inventors: Jianghong Yu, Nicolaas Joseph Martin Van Leth, Giovanni Cennini, Kenneth Vampola, Hugo Johan Comelissen