BE404741A - - Google Patents
Info
- Publication number
- BE404741A BE404741A BE404741DA BE404741A BE 404741 A BE404741 A BE 404741A BE 404741D A BE404741D A BE 404741DA BE 404741 A BE404741 A BE 404741A
- Authority
- BE
- Belgium
- Prior art keywords
- helix
- cathode
- oxide
- wound
- heating current
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/067—Main electrodes for low-pressure discharge lamps
- H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
Landscapes
- Solid Thermionic Cathode (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE404741A true BE404741A (is") |
Family
ID=70045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE404741D BE404741A (is") |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE404741A (is") |
-
0
- BE BE404741D patent/BE404741A/fr unknown
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