Quartz lamp

Description

1) An incandescent lamp that uses a quartz bulb, rather than glass. Quartz bulbs generally use a tungsten filament but run at a higher color temperature than glass bulbs. Thus they have very good color rendering properties. Quartz bulbs are often used for photography. Tungsten-halogen bulbs are quartz lights that contain a small amount of iodine which extends the life of the bulb. Quartz transmits the ultraviolet radiation well and thus emits greater UV light than glass bulbs.

2) A lamp that contains an ultraviolet light source, such as mercury vapor, enclosed in a fused quartz bulb. See mercury vapor lamp.

Synonyms and Related Terms

quartz light

Additional Information

T.Brill, Light: Its Interaction with Art and Antiquities. Plenum Press, New York, 1980.

Authority

• Marjorie Shelley, The Care and Handling of Art Objects, The Metropolitan Museum, New York, 1987

• 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

• Thomas B. Brill, Light Its Interaction with Art and Antiquities, Plenum Press, New York City, 1980