Cooper Hewitt mercury lamp with laboratory luminaire
date: label: date made
content: ca 1908
name: label: maker
content: Cooper Hewitt Electric Company
notes: label: Description (Brief)
content: Cooper Hewitt mercury vapor lamp for Michelson interferometer. A Cooper Hewitt lamp mounted in a wooden luminaire. Linear double-ended lamp with single connector at each end, mercury-pool electrodes, T-shaped envelope with small reservoir at top, large reservoir at bottom. Wooden luminaire holds the tube in a vertical orientation (high voltage pulse to start?) and has cardboard covers serving as light shutters. A white, metal trough reflector is mounted behind the lamp. Unit operates with auxiliary apparatus, catalog #2001.0033.02.
label: Location
content: Currently not on view
place: label: place made
content: United States: New Jersey, Hoboken
setName: label: See more items in
content: Work and Industry: Electricity
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content: Energy & Power
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content: Electric Lamps
creditLine: label: Credit Line
content: from Columbia University, Department of Physics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.0033.01
label: accession number
content: 2001.0033
label: catalog number
content: 2001.0033.01
objectType: label: Object Name
content: discharge lamp
physicalDescription: label: Measurements
content: overall: 33 1/2 in x 14 in x 8 1/2 in; 85.09 cm x 35.56 cm x 21.59 cm