参考词典中image orthicon的常规释义：
基本释义
- 超正析摄像管，超正析像管，低速电子束摄像放大管，移像式正析像管
英英解释
- 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
[同]
image orthicon, orthicon
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