GB652013A - Improvements in or relating to electric discharge devices comprising a rare gas filling within a sealed envelope - Google Patents
Improvements in or relating to electric discharge devices comprising a rare gas filling within a sealed envelopeInfo
- Publication number
- GB652013A GB652013A GB2240648A GB2240648A GB652013A GB 652013 A GB652013 A GB 652013A GB 2240648 A GB2240648 A GB 2240648A GB 2240648 A GB2240648 A GB 2240648A GB 652013 A GB652013 A GB 652013A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas filling
- relating
- electric discharge
- rare gas
- discharge devices
- 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
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
652,013. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and CLACK, B. N. Aug. 25, 1948, No. 22406. [Class 39 (i)] A discharge lamp of the type used as a spectroscopic or interferometric source contains in a part of the envelope cooled below atmospheric temperature a solid adsorbing agent having a high adsorbtive power for such gaseous impurities as are not frozen out, while not adsorbing any of the gas filling, which includes one or more rare gases, and possibly metal vapour also. The example shown contains krypton at 1 mm. pressure, and in operation the lower limbs and capillary tube 3 are immersed in liquid air. Each limb contains ¢ to 1 gm. of granular activated charcoal or silica gel, as at 8 and 9, which can absorb impurities such as hydrogen or carbon monoxide, which are not frozen out by the low temperature, as are, for example, water vapour and carbon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2240648A GB652013A (en) | 1948-08-25 | 1948-08-25 | Improvements in or relating to electric discharge devices comprising a rare gas filling within a sealed envelope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2240648A GB652013A (en) | 1948-08-25 | 1948-08-25 | Improvements in or relating to electric discharge devices comprising a rare gas filling within a sealed envelope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB652013A true GB652013A (en) | 1951-04-11 |
Family
ID=10178851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2240648A Expired GB652013A (en) | 1948-08-25 | 1948-08-25 | Improvements in or relating to electric discharge devices comprising a rare gas filling within a sealed envelope |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB652013A (en) |
-
1948
- 1948-08-25 GB GB2240648A patent/GB652013A/en not_active Expired
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