GB773997A - Improvements in electroluminescent lamps - Google Patents

Improvements in electroluminescent lamps

Info

Publication number
GB773997A
GB773997A GB19529/54A GB1952954A GB773997A GB 773997 A GB773997 A GB 773997A GB 19529/54 A GB19529/54 A GB 19529/54A GB 1952954 A GB1952954 A GB 1952954A GB 773997 A GB773997 A GB 773997A
Authority
GB
United Kingdom
Prior art keywords
per cent
compositions
july
group
oxides
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
GB19529/54A
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 GB773997A publication Critical patent/GB773997A/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

773,997. Glass compositions. SYLVANIA ELECTRIC PRODUCTS, Inc. July 2, 1954 [July 2, 1953], No. 19529/54. Drawings to Specification. Class 56 [Also in Group XL(a)] The main phosphor layer and the auxiliary dielectric layer of an electroluminescent lamp (Group XL(a)) comprises ceramic or glass compositions which are fused in an oven to give smooth non- porous layers. - The compositions include frits comprising silica, boric anhydride alkali metal, and alkaline earth metal oxides and alumina; or glasses comprising 30 per cent Na 2 O, 22 per cent P 2 O 5 , 31 per cent Al 2 O 3 and 17 per cent B 2 O 3 or 16 per cent Li 2 O, 5 per cent CaO, 30 per cent SiO 2 24 per cent B 2 O 3 and 25 per cent ZnO and similar compositions, including a small amount of PbO and other oxides of emperical form R 2 O 3 .
GB19529/54A 1953-07-02 1954-07-02 Improvements in electroluminescent lamps Expired GB773997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US773997XA 1953-07-02 1953-07-02

Publications (1)

Publication Number Publication Date
GB773997A true GB773997A (en) 1957-05-01

Family

ID=22137830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19529/54A Expired GB773997A (en) 1953-07-02 1954-07-02 Improvements in electroluminescent lamps

Country Status (1)

Country Link
GB (1) GB773997A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117874B (en) * 1958-06-16 1961-11-23 Thiokol Chemical Corp Process for the production of oxidatively curable polymers based on polyester or polyether urethanes containing NCO groups
DE1282807B (en) * 1959-08-06 1968-11-14 Thorn Electrical Ind Ltd Image storage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117874B (en) * 1958-06-16 1961-11-23 Thiokol Chemical Corp Process for the production of oxidatively curable polymers based on polyester or polyether urethanes containing NCO groups
DE1282807B (en) * 1959-08-06 1968-11-14 Thorn Electrical Ind Ltd Image storage
DE1282807C2 (en) * 1959-08-06 1969-07-10 Thorn Electrical Ind Ltd Image storage

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