Difference between revisions of "Electrical discharge lamp"
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== Description == | == Description == | ||
| − | A type of lighting used since the begining of the 20th century in which a tube filled with an inert gas carrier ([ | + | A type of lighting used since the begining of the 20th century in which a tube filled with an inert gas carrier ([[neon]], [[argon]], [[helium]], or [[mercury]]) is excited by a high voltage arc. The arc produces a discharge which cause phosphors in the lamp to fluoresce. Neon gas glows red-orange, while mercury and argon glow blue and helium glows yellow. The difference between cold cathode lamps and fluorescent lamps is that the filament (cathode) in the fluorescent lamp is hot. Neon lamps, invented by Georges Claude about 1910, are small diameter cold cathode tubes filled with neon gas. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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vapor lamp; vapour lamp; cold cathode; neon lamp; neon light; Leuchtstoffröhre (Deut.) | vapor lamp; vapour lamp; cold cathode; neon lamp; neon light; Leuchtstoffröhre (Deut.) | ||
| − | == | + | ==Resources and Citations== |
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Electric Discharge Lamp." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Electric Discharge Lamp." Accessed 19 Aug. 2004 . |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 12:56, 1 August 2022
Description
A type of lighting used since the begining of the 20th century in which a tube filled with an inert gas carrier (Neon, Argon, Helium, or Mercury) is excited by a high voltage arc. The arc produces a discharge which cause phosphors in the lamp to fluoresce. Neon gas glows red-orange, while mercury and argon glow blue and helium glows yellow. The difference between cold cathode lamps and fluorescent lamps is that the filament (cathode) in the fluorescent lamp is hot. Neon lamps, invented by Georges Claude about 1910, are small diameter cold cathode tubes filled with neon gas.
Synonyms and Related Terms
vapor lamp; vapour lamp; cold cathode; neon lamp; neon light; Leuchtstoffröhre (Deut.)
Resources and Citations
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Encyclopedia Britannica, http://www.britannica.com Comment: "Electric Discharge Lamp." Accessed 19 Aug. 2004 .