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.
Analogy
Imagine a cathode-ray tube as a high-tech paintbrush that can create colorful pictures on a blank canvas. The electron beam acts like the brush, while the phosphorescent screen is the canvas where the image appears.
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.
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