orthicon
美['ɔːθɪˌkɒn] 英['ɔːθɪkɒn]
n. 将 iconoscope 改良而成的映像管
英英释义
Noun- 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
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