GB773997A - Improvements in electroluminescent lamps - Google Patents
Improvements in electroluminescent lampsInfo
- 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
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 .
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)
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 |
-
1954
- 1954-07-02 GB GB19529/54A patent/GB773997A/en not_active Expired
Cited By (3)
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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