GB529972A - Improvements in electric discharge lamps - Google Patents
Improvements in electric discharge lampsInfo
- Publication number
- GB529972A GB529972A GB1661038A GB1661038A GB529972A GB 529972 A GB529972 A GB 529972A GB 1661038 A GB1661038 A GB 1661038A GB 1661038 A GB1661038 A GB 1661038A GB 529972 A GB529972 A GB 529972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- per cent
- nitrogen
- electrodes
- neon
- 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
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
Landscapes
- Discharge Lamp (AREA)
Abstract
529,972. Discharge lamps. BOSCH, F. J. G. VAN DEN. May 31, 1939, No. 16610/38. Drawings to Specification. [Class 39 (i)] A discharge lamp contains a rare gas or gases together with nitrogen and hydrogen, the quantity of hydrogen being of the order of 3 per cent of the combined amount of nitrogen and hydrogen. The rare gas may be, for example, neon, helium, krypton or argon or mixtures thereof, the combined amount of nitrogen and hydrogen in the case of neon being of the order of 20 to 28 per cent of the total gaseous content and 12 to 20 per cent in the case of argon. Thus, the combined nitrogen and hydrogen when neon is used may be 20 per cent and 28 per cent respectively for a 110 and a 220 volt lamp and where argon is used the nitrogen and hydrogen content may be 12 and 20 per cent for these voltages respectively. Forms of lamps are shown having two overlapping spaced rod-like and wire electrodes, and alternating spaced parallel rod-like electrodes, a resistance being mounted within the lamp in series with one of the electrodes in each case. One or both of the electrodes may be coated with an emitting substance, such as barium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1661038A GB529972A (en) | 1939-05-31 | 1939-05-31 | Improvements in electric discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1661038A GB529972A (en) | 1939-05-31 | 1939-05-31 | Improvements in electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB529972A true GB529972A (en) | 1940-12-03 |
Family
ID=10080432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1661038A Expired GB529972A (en) | 1939-05-31 | 1939-05-31 | Improvements in electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB529972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2312111A1 (en) * | 1975-05-23 | 1976-12-17 | Moriyama Sangyo Kk | ELECTRIC LIGHTING DEVICE SIMULATING A FLAME |
| WO2011032592A1 (en) * | 2009-09-17 | 2011-03-24 | Osram Gesellschaft mit beschränkter Haftung | Low-pressure discharge lamp |
-
1939
- 1939-05-31 GB GB1661038A patent/GB529972A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2312111A1 (en) * | 1975-05-23 | 1976-12-17 | Moriyama Sangyo Kk | ELECTRIC LIGHTING DEVICE SIMULATING A FLAME |
| WO2011032592A1 (en) * | 2009-09-17 | 2011-03-24 | Osram Gesellschaft mit beschränkter Haftung | Low-pressure discharge lamp |
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