ALL meanings of image orthicon
im·age or·thi·con
I i - noun image orthicon a camera tube, more sensitive than the orthicon, in which an electron image generated by a photocathode is focused on one side of a target that is scanned on its other side by a beam of low-velocity electrons to produce the output signal. 1
- noun image orthicon a television camera tube in which 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 0
- noun image orthicon a television camera tube of high sensitivity that combines an image converter, an orthicon, and an electron-multiplier amplifier 0