Patents by Inventor Martin Ruetschi

Martin Ruetschi 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 component with plural orientation layers on the same substrate wherein the surfaces of the orientation layers have different patterns and direction
    Patent number: 5903330
    Abstract: An optical component includes a substrate or cell having two spaced-apart substrates, one or more orientation layers on the substrates and one or more anisotropic layers of cross-linked liquid crystalline monomers or oligomers with locally different orientation of the liquid crystal molecules. The surfaces of the orientation layers adjacent the liquid crystalline layers have orientation patterns with a defined parallel or fan-like line structure in locally limited regions. The average spacing between the lines of the fan-like line structure is not greater than the thickness of the liquid crystal layer and the angle between neighboring lines is not greater than 3.degree..
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: May 11, 1999
    Assignee: Rolic AG
    Inventors: Jurg Funfschilling, Martin Ruetschi, Martin Schadt, Hubert Seiberle