television-camera tube 1
noundomain: artefact
Princeton WordNet [ver.3.1]
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EnglishDefinition
a tube that rapidly scans an optical image and converts it into electronic signals
Hypernym
tube 2
noun
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
Part_meronym
television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam
EnglishHyponym
iconoscope 1
noun
the first practical television-camera for picture pickup; invented in 1923 by Vladimir Kosma Zworykin
orthicon 1
noun
a now obsolete picture pickup tube in a television camera; 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
Part_holonym
television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam
