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.
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British Dictionary definitions for camera tube
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