GB498792A - Improved method of making an electric discharge tube comprising a secondary-emission electrode - Google Patents
Improved method of making an electric discharge tube comprising a secondary-emission electrodeInfo
- Publication number
- GB498792A GB498792A GB9451/38A GB945138A GB498792A GB 498792 A GB498792 A GB 498792A GB 9451/38 A GB9451/38 A GB 9451/38A GB 945138 A GB945138 A GB 945138A GB 498792 A GB498792 A GB 498792A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- compound
- evaporated
- magnesium
- electrode
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 150000001875 compounds Chemical class 0.000 abstract 5
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 3
- 229910052749 magnesium Inorganic materials 0.000 abstract 3
- 239000011777 magnesium Substances 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical class [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000007772 electrode material Substances 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 1
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical class [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/32—Secondary-electron-emitting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Discharge Lamp (AREA)
- Solid Thermionic Cathode (AREA)
- Gas-Filled Discharge Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL207921X | 1937-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB498792A true GB498792A (en) | 1939-01-13 |
Family
ID=19778652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9451/38A Expired GB498792A (en) | 1937-03-30 | 1938-03-28 | Improved method of making an electric discharge tube comprising a secondary-emission electrode |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2159774A (enrdf_load_stackoverflow) |
| BE (1) | BE427228A (enrdf_load_stackoverflow) |
| CH (1) | CH207921A (enrdf_load_stackoverflow) |
| DE (1) | DE747205C (enrdf_load_stackoverflow) |
| FR (1) | FR835838A (enrdf_load_stackoverflow) |
| GB (1) | GB498792A (enrdf_load_stackoverflow) |
| NL (1) | NL50262C (enrdf_load_stackoverflow) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE477661A (enrdf_load_stackoverflow) * | 1939-02-03 | |||
| DE914418C (de) * | 1939-02-19 | 1954-07-01 | Fernseh Gmbh | Entladungsroehre mit einer sekundaeremittierenden Isolieroberflaeche |
| FR857575A (fr) * | 1939-02-27 | 1940-09-19 | Materiel Telephonique | Dispositifs à décharge électronique et circuits les utilisant |
| DE895629C (de) * | 1940-07-31 | 1953-11-05 | Zeiss Ikon Ag | Verfahren zur Herstellung von Sekundaeremissionskathoden |
| US2422088A (en) * | 1944-04-03 | 1947-06-10 | Rca Corp | Electronic discriminator |
| NL72121C (enrdf_load_stackoverflow) * | 1945-10-24 | |||
| GB683061A (en) * | 1948-01-24 | 1952-11-19 | Emi Ltd | Improvements relating to thermionic valves utilising secondary electron emission amplification |
| US2792273A (en) * | 1954-01-14 | 1957-05-14 | Gen Electric | Oxide coated nickel cathode and method of activation |
| US2878093A (en) * | 1955-02-14 | 1959-03-17 | Univ Minnesota | Method of preparing emitter surfaces |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT101557B (de) * | 1923-04-11 | 1925-11-10 | Philips Nv | Entladungsröhre. |
| BE359997A (enrdf_load_stackoverflow) * | 1928-05-14 | |||
| GB443214A (en) * | 1934-08-20 | 1936-02-20 | Albert Karl Franz Patin | Improved method of applying coatings of alkali or alkaline earth metals |
-
0
- BE BE427228D patent/BE427228A/xx unknown
- NL NL50262D patent/NL50262C/xx active
-
1938
- 1938-03-15 US US195942A patent/US2159774A/en not_active Expired - Lifetime
- 1938-03-28 FR FR835838D patent/FR835838A/fr not_active Expired
- 1938-03-28 GB GB9451/38A patent/GB498792A/en not_active Expired
- 1938-03-28 CH CH207921D patent/CH207921A/de unknown
- 1938-03-29 DE DEN41816D patent/DE747205C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH207921A (de) | 1939-12-15 |
| FR835838A (fr) | 1939-01-04 |
| BE427228A (enrdf_load_stackoverflow) | |
| US2159774A (en) | 1939-05-23 |
| DE747205C (de) | 1944-09-15 |
| NL50262C (enrdf_load_stackoverflow) |
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