Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun image_orthicon

1 sense of image orthicon

Sense 1
orthicon, image orthicon -- (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)
       => television-camera tube, television pickup tube -- (a tube that rapidly scans an optical image and converts it into electronic signals)