Patents by Inventor Erwin Daniels

Erwin Daniels 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 for producing a marking on a spectacle lens
    Patent number: 4912298
    Abstract: A method of producing a marking on a spectacle lens. For producing the marking, those regions on the surface of the spectacle lens which are to define the form of the marking are irradiated with an excimer laser through a mask which contains the marking in the form of a cutout.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: March 27, 1990
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Erwin Daniels, Hermann Schurle
  • Drive for a prismatic compensator
    Patent number: 4673249
    Abstract: Two prismatic wedges of a prismatic compensator are rotated in opposite directions by the same angular quantity for adjusting the prismatic effect with the aid of a crossed-over pull wire. The pull wire is changed in direction by means of two rollers. The pull wire encloses the fittings under pulling tension so as to be free of slippage and free of play.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: June 16, 1987
    Assignee: Carl-Zeiss-Stiftung
    Inventors: Horst Schneider, Wilhelm Schmidt, Erwin Daniels