phosphor

thumb|Example of phosphorescence thumb|Monochrome monitor thumb|Aperture grille CRT phosphors

~42 min read

Article

22 sections

Contents

Light-emission process
Materials
Phosphor degradation
Applications
Lighting
Phosphor thermometry
Glow-in-the-dark toys
Oxygen sensing
Postage stamps
Radioluminescence
Electroluminescence
White LEDs
Black-and-white television CRTs
Reduced-palette color CRTs
Color television CRTs
Projection televisions
Standard phosphor types
Various
See also
References
Bibliography
External links

thumb|Example of phosphorescence thumb|Monochrome monitor thumb|Aperture grille CRT phosphors

A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy. The term is used both for fluorescent or phosphorescent substances which glow on exposure to ultraviolet or visible light, and cathodoluminescent substances which glow when struck by an electron beam (cathode rays) in a cathode-ray tube.