GB1136239A - Electroluminescent lamps with glass dielectric compositions - Google Patents

Electroluminescent lamps with glass dielectric compositions

Info

Publication number
GB1136239A
GB1136239A GB5416565A GB5416565A GB1136239A GB 1136239 A GB1136239 A GB 1136239A GB 5416565 A GB5416565 A GB 5416565A GB 5416565 A GB5416565 A GB 5416565A GB 1136239 A GB1136239 A GB 1136239A
Authority
GB
United Kingdom
Prior art keywords
metal oxide
glass
rare earth
earth metal
dec
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5416565A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB1136239A publication Critical patent/GB1136239A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/20—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded

Landscapes

  • Glass Compositions (AREA)

Abstract

1,136,239. Glass compositions. SYLVANIA ELECTRIC PRODUCTS Inc. 21 Dec., 1965 [21 Dec., 1964], No. 54165/65. Heading C1M. [Also in Division C4] A glass dielectric used in an electro-luminescent lamp comprises a rare earth metal oxide, a glass forming oxide and a divalent metal oxide, the rare earth metal oxide constituting from 10 to 40% and the rare earth metal oxide and the glass former together from 50 to 75% by weight of the glass, the balance being the divalent metal oxide and optionally other compatible constituents. The rare earth metal oxide is preferably La 2 O 3 , Eu 2 O 3 or CeO 2 ; the glass former is SiO 2 , P 2 O 5 , GeO 2 or B 2 O 3 or a mixture thereof; the divalent metal oxide is CaO, MgO, BeO, BaO, SrO or ZnO or a mixture thereof. Compatible constituents given are TiO 2 , Al 2 O 3 , ZrO 2 and alkali metal oxides. A number of examples are given.
GB5416565A 1964-12-21 1965-12-21 Electroluminescent lamps with glass dielectric compositions Expired GB1136239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42020664A 1964-12-21 1964-12-21

Publications (1)

Publication Number Publication Date
GB1136239A true GB1136239A (en) 1968-12-11

Family

ID=23665513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5416565A Expired GB1136239A (en) 1964-12-21 1965-12-21 Electroluminescent lamps with glass dielectric compositions

Country Status (1)

Country Link
GB (1) GB1136239A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847964A1 (en) * 1996-12-12 1998-06-17 Sumita Optical Glass, Inc. An oxide fluorescent glass capable of exhibiting visible fluorescence
DE19820072C1 (en) * 1998-05-06 1999-06-24 Schott Glas New lead-free optical lanthanum crown and flint glasses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847964A1 (en) * 1996-12-12 1998-06-17 Sumita Optical Glass, Inc. An oxide fluorescent glass capable of exhibiting visible fluorescence
US5961883A (en) * 1996-12-12 1999-10-05 Sumita Optical Glass, Inc. Oxide fluorescent glass capable of exhibiting visible fluorescence
DE19820072C1 (en) * 1998-05-06 1999-06-24 Schott Glas New lead-free optical lanthanum crown and flint glasses

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