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image orthicon
noun
, Television.
- 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.
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
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Word History and Origins
Origin of image orthicon1
First recorded in 1940–45
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