camera tube

noun Television.
  1. a cathode-ray tube that converts an optical image projected on its light-sensitive receptor surface into an electrical signal by a scanning process: used in analog television cameras.
Compare image tube.
Also called pickup tube.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for camera tube

camera tube

noun
  1. the part of a television camera that converts an optical image into an electrical signalSee also image orthicon, vidicon, Plumbicon, iconoscope
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012