1. Education
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

Cathode Ray Tube Definition

Definition of Cathode Ray Tube


Diagram of a color CRT

Diagram of a color CRT: 1. Electron gun 2. Electron beam 3. Focusing coil 4. Deflection coil 5. Anode 6. Mask for separating beams for colors 7. Phosphor layer with red, green, and blue zones 8. Close-up of the phosphor-coated layer.

Søren Peo Pedersen
Definition: A cathode ray tube is a type of vacuum tube which contains a source of electrons and a fluorescent screen, with some means to accelerate and deflect the electron beam. Cathode ray tubes commonly are used to form images on the fluorescent screen.

Also Known As: CRT

©2014 About.com. All rights reserved.