Patents by Inventor Walter Watz

Walter Watz 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).

  • Camera lens
    Patent number: 5161060
    Abstract: A camera lens with a relative aperture of 1:1.4 and a focal length of 35 mm has five components. The first component includes a cemented element which is concave on the object side. The second component includes a cemented element which has an aspherical convex surface on the object side. The third component serves as an individual lens. The fourth component includes a cemented element which is concave on the object side. The fifth component has a cemented element which includes a concave surface on the image side and an aspherical convex surface on the object side.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: November 3, 1992
    Assignee: Leica Camera GmbH
    Inventor: Walter Watz