Definition of camera tube in English:

camera tube

noun

  • 1Photography (in a camera or scientific instrument) a tube along which light is directed from a lens or source into a device holding the film or plate (now chiefly historical).

  • 2Television any of various types of cathode ray tube used in television cameras to convert an optical image into a corresponding electrical signal; also called pick-up tube.

Origin

Mid 19th century; earliest use found in U.S. Patents.