Cathode-ray tube

Definition

A cathode-ray tube is a vacuum tube that uses an electron beam to create images on a fluorescent screen. It consists of an electron gun, deflection plates, and a phosphorescent screen.

Related terms

Electron Gun: A device in a cathode-ray tube that emits electrons.

Deflection Plates: Electrodes in a cathode-ray tube that control the path of the electron beam.

Phosphorescent Screen: A coated surface in a cathode-ray tube that emits light when struck by electrons.