television pickup tube

Noun
  1. is a type of: electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, tube, vacuum tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
    subtypes:
    • iconoscope - the first practical television-camera for picture pickup; invented in 1923 by Vladimir Kosma Zworykin
    • image orthicon, 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
    is a part of: camera, television camera, tv camera - television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam
    same as: television-camera tube

Found on Word Lists

Other Searches