File:Vidicon.png

Schematic of vidicon image tube.

The vidicon is a storage type camera tube in which a charge-density pattern is formed by the imaged scene radiation on a photoconductive surface which is then scanned by a beam of low velocity electrons. The fluctuating voltage coupled out to a video amplifier can be used to reproduce the scene being imaged. Pyroelectric photocathodes can be used to produce a vidicon sensitive over a broad portion of the infrared spectrum.

https://ewhdbks.mugu.navy.mil/vidicon.gif