Patents Assigned to Rapifax Corporation
  • Optical scanner
    Patent number: 4019811
    Abstract: An optical scanner wherein the image of a straight line is focused by an optical element such as a concave mirror or converging lens on the arc of a circle which is scanned by a rotating drum having one or more field stops such as pin holes or optical fibers directing light upon a stationary photodetector. The optical center of the focussing element is disposed in the plane of the scanning circle; and the axis of rotation of the drum orthogonally intersects the plane at a point displaced from the optical center.
    Type: Grant
    Filed: March 26, 1975
    Date of Patent: April 26, 1977
    Assignee: Rapifax Corporation
    Inventors: Lawrence D. Lorah, Richard W. Stresau, Lawrence B. Lapson, Curtis P. VAN Vloten