Patents by Inventor Sjoerd Cornelis Stallinga

Sjoerd Cornelis Stallinga 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).

  • LENS SYSTEM FOR SCANNING DEVICE
    Publication number: 20100085861
    Abstract: A lens system includes a lens (18) and a non-periodic phase structure (16). A temperature-dependence of the spherical aberration of the lens is compensated by a temperature dependence of the spherical aberration of the non-periodic phase structure. A wavelength-dependence of the defocus of the lens is compensated by a wavelength-dependence of the defocus of the non-periodic phase structure. A wavelength-dependence of the spherical aberration of the non-periodic phase structure is compensated by a wavelength-dependence of the spherical aberration of the lens.
    Type: Application
    Filed: November 20, 2007
    Publication date: April 8, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Henri M.J. Boots, Sjoerd Cornelis Stallinga