HyperDic: image_orthicon

English > 1 sense of the expression image orthicon:
NOUNartifactimage orthicon, orthicona now obsolete picture pickup tube in a television camera
English > image orthicon: 1 sense > noun 1, artifact
MeaningA 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.
Synonymorthicon
Broadertelevision-camera tube, television pickup tubeA tube that rapidly scans an optical image and converts it into electronic signals
Catalanorticó

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