Difference between revisions of "Arc lamp"
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== Description == | == Description == | ||
− | A high-intensity light in which the radiation source is an electric current that jumps between two incandescent electrodes housed in a [[quartz|quartz]] bulb. A [[carbon%20arc|carbon arc lamp]] has two carbon electrodes in an air environment. | + | A high-intensity light in which the radiation source is an electric current that jumps between two incandescent electrodes housed in a [[quartz|quartz]] bulb. A [[carbon%20arc|carbon arc lamp]] has two carbon electrodes in an air environment. Carbon arc lamps, the first type of electric lighting devices, were patented by Frederick Holmes in 1846, and initially installed in South Foreland Lighthouse in Dover in 1858, after which they replaced gas lamps for the illumination of city streets. Arc lighting is very bright, intense and expensive, and was superseded by the more practical incandescent lights in the early 20th century. |
+ | Other types of arc lamps include: | ||
+ | * [[xenon%20arc|xenon arc lamp]]: two metal electrodes and a [[xenon|xenon]] gas filled environment. This produces very high intensity white light | ||
+ | * [[mercury%20vapor%20lamp%2C%20high%20pressure|mercury vapor]]: two metal electrodes with mercury gas in a vacuum. This is also called a fluorsecent lamp. | ||
+ | * [[sodium%20lamp|sodium vapor]];two metal electrodes with [[sodium|sodium]] gas at reduced pressure. | ||
+ | * Krypton arc lamp: aircraft approach lamps | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
− | arc light; electric lamp; voltaic light; Bogenlampe (Deut.); lampe à arc (Fr.) | + | arc light; arc lighting; electric lamp; voltaic light; Bogenlampe (Deut.); lampe à arc (Fr.) |
==Resources and Citations== | ==Resources and Citations== | ||
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | ||
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* ''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 | ||
− | + | * Bill Bryson, ‘At Home: A Short History of Private Life’ Doubleday Publishers, London 2010. | |
− | + | * Wikipedia: [https://en.wikipedia.org/wiki/Arc_lamp Arc lamp] Accessed March 2025 | |
[[Category:Materials database]] | [[Category:Materials database]] |
Revision as of 11:36, 16 March 2025
Description
A high-intensity light in which the radiation source is an electric current that jumps between two incandescent electrodes housed in a Quartz bulb. A carbon arc lamp has two carbon electrodes in an air environment. Carbon arc lamps, the first type of electric lighting devices, were patented by Frederick Holmes in 1846, and initially installed in South Foreland Lighthouse in Dover in 1858, after which they replaced gas lamps for the illumination of city streets. Arc lighting is very bright, intense and expensive, and was superseded by the more practical incandescent lights in the early 20th century.
Other types of arc lamps include:
- xenon arc lamp: two metal electrodes and a Xenon gas filled environment. This produces very high intensity white light
- mercury vapor: two metal electrodes with mercury gas in a vacuum. This is also called a fluorsecent lamp.
- sodium vapor;two metal electrodes with Sodium gas at reduced pressure.
- Krypton arc lamp: aircraft approach lamps
Synonyms and Related Terms
arc light; arc lighting; electric lamp; voltaic light; Bogenlampe (Deut.); lampe à arc (Fr.)
Resources and Citations
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Bill Bryson, ‘At Home: A Short History of Private Life’ Doubleday Publishers, London 2010.
- Wikipedia: Arc lamp Accessed March 2025