GB527060A - Improvements in high-pressure metal-vapour electric discharge lamps and in circuits for operating them - Google Patents
Improvements in high-pressure metal-vapour electric discharge lamps and in circuits for operating themInfo
- Publication number
- GB527060A GB527060A GB995539A GB995539A GB527060A GB 527060 A GB527060 A GB 527060A GB 995539 A GB995539 A GB 995539A GB 995539 A GB995539 A GB 995539A GB 527060 A GB527060 A GB 527060A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuits
- discharge lamps
- operating
- electric discharge
- pressure metal
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/92—Lamps with more than one main discharge path
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
527,060. Supply systems for discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and RYDE, J. W. March 30, 1939, No. 9955. [Class 38 (iv)] [Also in Group XL] In a high - pressure, metal vapour, discharge lamp a number of pairs of electrodes 1, 1<SP>1</SP>-2, 2<SP>1</SP> - 5,5<SP>1</SP>. are arranged along the envelope each pair acting for a discharge path ; the pairs are fed in parallel from a single transformer with a number' of secondaries 7 ... 11. Ballast resistances 13 ... 17 are arranged in the circuits. By combing two adjacent electrodes-say 1<SP>1</SP> and 2-one electrode may serve for two discharge paths.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB995539A GB527060A (en) | 1939-03-30 | 1939-03-30 | Improvements in high-pressure metal-vapour electric discharge lamps and in circuits for operating them |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB995539A GB527060A (en) | 1939-03-30 | 1939-03-30 | Improvements in high-pressure metal-vapour electric discharge lamps and in circuits for operating them |
Publications (1)
Publication Number | Publication Date |
---|---|
GB527060A true GB527060A (en) | 1940-10-01 |
Family
ID=9881844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB995539A Expired GB527060A (en) | 1939-03-30 | 1939-03-30 | Improvements in high-pressure metal-vapour electric discharge lamps and in circuits for operating them |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB527060A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004562A1 (en) * | 1986-01-17 | 1987-07-30 | Sidefact Limited | Flat light source |
EP0483293A1 (en) * | 1989-10-27 | 1992-05-06 | Franklin H Cocks | Low voltage gas discharge device. |
-
1939
- 1939-03-30 GB GB995539A patent/GB527060A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004562A1 (en) * | 1986-01-17 | 1987-07-30 | Sidefact Limited | Flat light source |
US4945281A (en) * | 1986-01-17 | 1990-07-31 | Sidefact Limited | Flat light source |
EP0483293A1 (en) * | 1989-10-27 | 1992-05-06 | Franklin H Cocks | Low voltage gas discharge device. |
EP0483293A4 (en) * | 1989-10-27 | 1992-08-12 | Franklin H. Cocks | Low voltage gas discharge device |
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