Difference between revisions of "Sodium lamp"
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T.Brill, Light: Its Interaction with Art and Antiquities. Plenum Press, New York, 1980. | T.Brill, Light: Its Interaction with Art and Antiquities. Plenum Press, New York, 1980. | ||
| − | == | + | == Sources Checked for Data in Record == |
* ''Encyclopedia Britannica'', http://www.britannica.com Comment: "lamp." Encyclopædia Britannica. 2005. Encyclopædia Britannica Premium Service 24 Jan. 2005 . | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "lamp." Encyclopædia Britannica. 2005. Encyclopædia Britannica Premium Service 24 Jan. 2005 . | ||
Revision as of 17:38, 1 May 2016
Description
A type of high intensity discharge lamp in which excited sodium vapor is the illumination source. Sodium lamps produce sharp intense emission lines at 589 and 589.6 nm. This gives a bright yellow-orange, glareless light that is used on streets, highways, lobbies, parks, and malls. Sodium vapor lamps have a high initial cost that is offset by long lifetimes and low energy requirements.
Synonyms and Related Terms
sodium arc; sodium vapor lamp; sodium-vapor lamp; sodium-vapour lamp (Br.); high pressure sodium lamp
Additional Information
T.Brill, Light: Its Interaction with Art and Antiquities. Plenum Press, New York, 1980.
Sources Checked for Data in Record
- Encyclopedia Britannica, http://www.britannica.com Comment: "lamp." Encyclopædia Britannica. 2005. Encyclopædia Britannica Premium Service 24 Jan. 2005 .