Corning "Corstar Sapphire" tubing
date: label: Date made
content: ca 1978
name: label: maker
content: Corning Incorporated
notes: label: Description (Brief)
content: Three lengths of Corning "Corstar Sapphire" tubing. Characteristics: clear mono-crystalline alumina tubes. This material was developed in the mid-1970s by Corning and Westinghouse as competition to GE's polycrystalline alumina Lucalox product. Light transmissiveness of Corstar Sapphire was better than the opaque Lucalox, and Westinghouse marketed Ceramalux lamps equipped with the clear arc-tubes for several years. Eventually, GE improved Lucalox while maintaining lower prices and Corstar Sapphire was removed from the market.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Harold D. Wallace, Jr.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2003.0030.11
label: accession number
content: 2003.0030
label: catalog number
content: 2003.0030.11
objectType: label: Object Name
content: lamp component
physicalDescription: label: Measurements
content: .01: 18 1/4 in x 3/8 in; 46.355 cm x .9525 cm
label: Measurements
content: .02: 17 3/4 in x 3/8 in; 45.085 cm x .9525 cm
label: Measurements
content: .03: 4 1/2 in x 3/8 in; 11.43 cm x .9525 cm