GB397006A - Improvements in electric lamps - Google Patents
Improvements in electric lampsInfo
- Publication number
- GB397006A GB397006A GB36773/32A GB3677332A GB397006A GB 397006 A GB397006 A GB 397006A GB 36773/32 A GB36773/32 A GB 36773/32A GB 3677332 A GB3677332 A GB 3677332A GB 397006 A GB397006 A GB 397006A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filled
- discharge lamps
- lamps
- pressure
- dec
- 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
- H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight
Landscapes
- Planar Illumination Modules (AREA)
Abstract
397,006. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand- Ges. fur Elektrische Gluhlampen ; 11, Ehrenbergstrasse, Berlin.) Dec. 29, 1932, No. 36773. Convention date, Dec. 29, 1931. [Class 39 (i).] One or, more discharge lamps having thermionic electrodes and filled with rare gas at a pressure of a few mms. are arranged about the middle of one or more discharge lamps having thermionic electrodes and filled with rare gas and' with metal vapour assuming a pressure above 50 mm. in operation. In a daylight lamp, a helical tube 2 with electrode chambers supported by clips from a central rod 7 in an extension 6 of a conical housing 4 is filled with neon at 1-10 mm., preferably 5 mm., and is arranged about a straight or curved tube 1 with electrode chambers 1<1> in sleeves 11 and with a mercury filling assuming a pressure of several hundred mm. Two tubes 1 parallel to each other may be filled with different vapours. Four incandescent lamps in recesses in the housing 4 may be supplied independently or in series with the discharge lamps. The. glass front 5 does not form an airtight closure and may be coloured. Specification 13084/04, [Class 39, Electric lamps &c.], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE397006X | 1931-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB397006A true GB397006A (en) | 1933-08-17 |
Family
ID=6397127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36773/32A Expired GB397006A (en) | 1931-12-29 | 1932-12-29 | Improvements in electric lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB397006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2451580A (en) * | 1946-12-07 | 1948-10-19 | Schwinger Abram | Combined fluorescent and filament lamp reflector unit |
-
1932
- 1932-12-29 GB GB36773/32A patent/GB397006A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2451580A (en) * | 1946-12-07 | 1948-10-19 | Schwinger Abram | Combined fluorescent and filament lamp reflector unit |
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