Noun: image orthicon 'i-mij'or-thu,kón
- 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
"Early television broadcasts relied on image orthicon tubes for image capture";
- orthicon
Derived forms: image orthicons
Type of: television pickup tube [archaic], television-camera tube
Encyclopedia: Image orthicon