GB614896A - Improvements in and relating to electric discharge lamps - Google Patents
Improvements in and relating to electric discharge lampsInfo
- Publication number
- GB614896A GB614896A GB2390246A GB2390246A GB614896A GB 614896 A GB614896 A GB 614896A GB 2390246 A GB2390246 A GB 2390246A GB 2390246 A GB2390246 A GB 2390246A GB 614896 A GB614896 A GB 614896A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- membrane
- lamp
- electric discharge
- discharge lamps
- 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
- 239000012528 membrane Substances 0.000 abstract 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 239000011651 chromium Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910000669 Chrome steel Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229910052703 rhodium Inorganic materials 0.000 abstract 1
- 239000010948 rhodium Substances 0.000 abstract 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/822—High-pressure mercury lamps
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
614,896. Discharge lamps. SCOPHONY. Ltd., and WIKKENHAUSER, G. Aug. 12, 1946, No. 23902. [Class 39 (i)] At least one electrode of an electric discharge lamp, or a support for such electrode, is taken into the interior of the lamp envelope through a flexible metal membrane 11 which constitutes a gas-tight seal and permits limited movement of the electrode. In a mercury vapour lamp the membrane may be of stainless steel, chrome steel or chromium, or its inner surface may be plated with platinum, chromium or rhodium. The membrane may be concentrically corrugated and is preferably provided with a stop 16 to limit the movement of the electrode. The flexibility of the membrane or membranes may be sufficient to enable the two electrodes to be brought into contact with one another, as in a carbon arc lamp, for starting purposes. The electrodes may be moved, after starting, to increase the arc length to the most favourable value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2390246A GB614896A (en) | 1946-08-12 | 1946-08-12 | Improvements in and relating to electric discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2390246A GB614896A (en) | 1946-08-12 | 1946-08-12 | Improvements in and relating to electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB614896A true GB614896A (en) | 1948-12-23 |
Family
ID=10203153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2390246A Expired GB614896A (en) | 1946-08-12 | 1946-08-12 | Improvements in and relating to electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB614896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1170542B (en) * | 1960-09-21 | 1964-05-21 | Gen Electric | Gas discharge lamp, in particular high-pressure lamp with a high load capacity |
-
1946
- 1946-08-12 GB GB2390246A patent/GB614896A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1170542B (en) * | 1960-09-21 | 1964-05-21 | Gen Electric | Gas discharge lamp, in particular high-pressure lamp with a high load capacity |
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