GB609809A - Improvements in and relating to electric discharge lamps - Google Patents
Improvements in and relating to electric discharge lampsInfo
- Publication number
- GB609809A GB609809A GB2156844A GB2156844A GB609809A GB 609809 A GB609809 A GB 609809A GB 2156844 A GB2156844 A GB 2156844A GB 2156844 A GB2156844 A GB 2156844A GB 609809 A GB609809 A GB 609809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- resistances
- primary
- discharge lamps
- relating
- 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
- H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
- H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
609,809. Discharge lamps. HANOVIA, Ltd., and BRENCH, G. W. Nov. 3, 1944, No. 21568. [Class 39 (i)] A preferably U-shaped discharge lamp has primary helical electrodes 11, 12 surrounded by adjacent secondary cylindrical electrodes 17, 18; the electrodes are connected through resistances 13, 15, 19, 20, contained within a single cap 21, to the cap contacts 22, 25. The resistances 13, 15 connecting the primary electrodes to the contacts are of the order of 500 ohms, while the resistances 19, 20 which connect each secondary electrode to the opposite contact are of the order of 70,000 ohms. Either the primary or the secondary electrodes, or both, may be coated with activating material. The envelope may be coated internally with fluorescent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2156844A GB609809A (en) | 1944-11-03 | 1944-11-03 | Improvements in and relating to electric discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2156844A GB609809A (en) | 1944-11-03 | 1944-11-03 | Improvements in and relating to electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB609809A true GB609809A (en) | 1948-10-07 |
Family
ID=10165097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2156844A Expired GB609809A (en) | 1944-11-03 | 1944-11-03 | Improvements in and relating to electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB609809A (en) |
-
1944
- 1944-11-03 GB GB2156844A patent/GB609809A/en not_active Expired
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