orthicon, n.
(orthicons)
freq. cnt. 1
(orthicons)
freq. cnt. 1
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
<noun.artifact> freq. cnt.: 2 freq. cnt.: 1 freq. cnt.: 1
image orthicon orthicon
semantic pointers
hypernym