GB486418A - Improvements in means for producing light comprising in combination an electric discharge lamp and an electric incandescent lamp whose filament is in series with the discharge path - Google Patents
Improvements in means for producing light comprising in combination an electric discharge lamp and an electric incandescent lamp whose filament is in series with the discharge pathInfo
- Publication number
- GB486418A GB486418A GB5130/38A GB513038A GB486418A GB 486418 A GB486418 A GB 486418A GB 5130/38 A GB5130/38 A GB 5130/38A GB 513038 A GB513038 A GB 513038A GB 486418 A GB486418 A GB 486418A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- electric
- series
- filament
- combination
- 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
- H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
486,418. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and GENERAL ELECTRIC CO., Ltd. Feb. 18, 1938, No. 5130. Convention date, Feb. 20, 1937. [Class 39 (i)] In a discharge lamp having an incandescent filament in series with the discharge the filament 11 is arranged inside an elongated bulb 9 enclosed in the discharge envelope 1. One terminal of the filament is connected by a conductor 5 to one of the discharge electrodes 3, the electrodes and the end of the bulb being supported by a wire 6 sealed into the pip. The other end of the bulb is supported in a tubular extension 12 of the pinch of the discharge envelope 1, in which it may be packed with glass wool. In a modification this end of the bulb is sealed into the pinch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE486418X | 1937-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486418A true GB486418A (en) | 1938-06-02 |
Family
ID=6543448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5130/38A Expired GB486418A (en) | 1937-02-20 | 1938-02-18 | Improvements in means for producing light comprising in combination an electric discharge lamp and an electric incandescent lamp whose filament is in series with the discharge path |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB486418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199645A (en) * | 1986-12-15 | 1988-07-13 | Gen Electric | Hybrid incandescent/fluorescent light source for liquid crystal displays |
-
1938
- 1938-02-18 GB GB5130/38A patent/GB486418A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199645A (en) * | 1986-12-15 | 1988-07-13 | Gen Electric | Hybrid incandescent/fluorescent light source for liquid crystal displays |
| GB2199645B (en) * | 1986-12-15 | 1991-05-22 | Gen Electric | Hybrid incandescent/fluorescent light source in liquid crystal displays |
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