Patents by Inventor Emile J.K. Verstegen

Emile J.K. Verstegen 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).

  • OPTICAL ELEMENT
    Publication number: 20090284827
    Abstract: An optical element (120; 220; 320; 420) includes a fluid material (104; 204; 304; 404) which is held between a first surface (106; 206; 306; 406) and a second surface (108; 208; 308; 408) and has a refractive index which is variable in response to variation of an applied field. The first surface and said second surface have respective first and second cross-sectional profiles, which vary in height when measured parallel to the optical axis of the optical element, across the respective first and second surfaces.
    Type: Application
    Filed: December 23, 2005
    Publication date: November 19, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventor: Emile J.K. Verstegen
  • Optical Device with Fresnel Structure
    Publication number: 20080106806
    Abstract: The invention relates to an optical device compris- 303 300 ing a Fresnel structure (101). The Fresnel structure is designed such that at least one phase jump is introduced in a radiation beam that 302 passes through said Fresnel structure. The optical device further comprises a stepped structure (102) for compensating for said phase jump.
    Type: Application
    Filed: August 22, 2005
    Publication date: May 8, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Bernardus H.W. Hendriks, Emile J.K. Verstegen