Patents Represented by Attorney Leon F. Herbert

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  • Electron gun
    Patent number: 3932749
    Abstract: Electron gun having a source of electrons, means for forming the electrons into a beam directed along an axis, and an output electrode comprising a plurality of semi-cylindrical plates disposed coaxially of the axis of the beam. This electrode is part of the final lens of the gun, and voltages for deflecting the beam and correcting astigmatism are superposed on the plates of this electrode.
    Type: Grant
    Filed: March 22, 1974
    Date of Patent: January 13, 1976
    Assignee: Varian Associates
    Inventor: Norman J. Taylor