Patents by Inventor Sven-Goran Pettersson

Sven-Goran Pettersson 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).

  • Method and apparatus for holographic refractometry
    Publication number: 20070109555
    Abstract: A method and device for determining refractive index of an object compared to a refractive index of a surrounding medium. The object is exposed to a laser object beam and the scattered light interferes with a laser reference beam to obtain a hologram. The hologram is analyzed for phase information, and based thereon, it is determined if the refractive index of the object is higher or lower than the refractive index of the surrounding medium.
    Type: Application
    Filed: October 7, 2004
    Publication date: May 17, 2007
    Applicant: PHASE HOLOGRAPHIC IMAGING PHI AB
    Inventors: Mats Gustafsson, Mikael Sebesta, Peter Egelberg, Thomas Lenart, Sven-Goran Pettersson, Bengt Bengtsson