image orthicon

nounTelevision.

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.

Origin of image orthicon

First recorded in 1940–45

Words Nearby image orthicon

image converter
image dissector
image enhancement
image intensifier
imagemaker
image orthicon
image printer
image processing
imager
imagery
imagesetter

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for image orthicon

image orthicon

noun

a television camera tube in which electrons, emitted from a photoemissive surface in proportion to the intensity of the incident light, are focused onto the target causing secondary emission of electrons

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

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