• DocumentCode
    3552851
  • Title

    "Perma-Focus" - A power-saving, tunable system for magnetic focusing and focus-conservation in the presence of voltage fluctuations

  • Author

    Schlesinger, K. ; Wagner, R.A.

  • Author_Institution
    General Electric Co., Syracuse, N. Y.
  • fYear
    1968
  • fDate
    23-25 Oct. 1968
  • Firstpage
    38
  • Lastpage
    38
  • Abstract
    The electron-optics of magnetic image-tubes shows that defocusing caused by a change in screen-voltage can be corrected by applying one-half of that relative change to the magnetic field. Unfortunately, this fixed-focus condition can be strictly satisfied only by the use of nonlinear networks.
  • Keywords
    Coils; Contracts; Focusing; Laboratories; Magnetic fields; Night vision; Permanent magnets; Power system modeling; Research and development; Voltage fluctuations;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electron Devices Meeting, 1968 International
  • Conference_Location
    Washington, DC, USA
  • Type

    conf

  • DOI
    10.1109/IEDM.1968.187967
  • Filename
    1475492
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3552851