• DocumentCode
    386915
  • Title

    Dielectric bifocal lenses

  • Author

    Brown, Rebecca

  • Author_Institution
    Naval Research Laboratory, Washington, DC, USA
  • Volume
    4
  • fYear
    1966
  • fDate
    21-25 March 1966
  • Firstpage
    180
  • Lastpage
    187
  • Abstract
    A study has been made of the scanning properties of solid dielectric bifocal lenses. In two dimensions, a bifocal lens is a two-surface lens, symmetric about an axis, designed to collimate the rays from a primary point source lccated at either of two conjugate off-axis positions into plane waves making angles +\\alpha and -\\alpha respectively with the axis. A point-by-point technique used in computing the lens surfaces is discussed. Three-dimensional polystyrene lenses, each about 50 wavelengths in diameter and with \\alpha = 20\\deg , were built by rotating two-dimensional designs about their axes. The optical aberrations and the radiation patterns of three such lenses are described.
  • Keywords
    Collimators; Dielectrics; Equations; Lenses; Optical design; Optical refraction; Optical surface waves; Optical waveguides; Solids; Surface waves;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    1958 IRE International Convention Record
  • Conference_Location
    New York, NY, USA
  • Type

    conf

  • DOI
    10.1109/IRECON.1956.1150462
  • Filename
    1150462