Patents by Inventor Zdislav Zwak

Zdislav Zwak 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).

  • Collimator assembly
    Patent number: 8434892
    Abstract: A flat refractive collimator assembly including a light guide and a light source, for example, an LED. The sides of the light guide defines a collimating reflective surface having a paraboloidal shape with a collimating focal point placed on the axis of the light guide. The central portion of the light guide defines a main reflective surface having a virtual focal point, which is substantially similar to the collimating focal point. The collimating reflective surface is a paraboloidal surface or is formed as a plurality of paraboloidal segments having various focal lengths and having a common collimating focal point. The collimating reflective surface can also include spread optics.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: May 7, 2013
    Assignees: Varroccorp Holding BV, Varroc Engineering Private Limited, Varroc Lighting Systems S.R.O.
    Inventors: Zdislav Zwak, Miroslav Kropac, Milan Cejnek
  • Collimator Assembly
    Publication number: 20120250308
    Abstract: A flat refractive collimator assembly including a light guide and a light source, for example, an LED. The sides of the light guide defines a collimating reflective surface having a paraboloidal shape with a collimating focal point placed on the axis of the light guide. The central portion of the light guide defines a main reflective surface having a virtual focal point, which is substantially similar to the collimating focal point. The collimating reflective surface is a paraboloidal surface or is formed as a plurality of paraboloidal segments having various focal lengths and having a common collimating focal point. The collimating reflective surface can also include spread optics.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: Zdislav Zwak, Miroslav Kropac, Milan Cejnek