image orthicon: Meaning and Definition of

im'age or"thicon

Pronunciation: [key]
— Television. Television.
  1. a camera tube, more sensitive than the orthicon, in which an electron image generated by a photocathode is focused on one side of a target that is scanned on its other side by a beam of low-velocity electrons to produce the output signal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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