|
Từ điển WordNet v3.1 - WordNet Dictionary
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 (Freq. 1)
• Syn:
image orthicon
• Hypernyms:
television-camera tube, television pickup tube
|
|
|
|
