BE544065A - - Google Patents
Info
- Publication number
- BE544065A BE544065A BE544065DA BE544065A BE 544065 A BE544065 A BE 544065A BE 544065D A BE544065D A BE 544065DA BE 544065 A BE544065 A BE 544065A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/027—Construction of the gun or parts thereof
-
- 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
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
- Microwave Tubes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB328590X | 1953-08-14 | ||
GB3013171X | 1955-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE544065A true BE544065A (en) |
Family
ID=32396015
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE531122D BE531122A (en) | 1953-08-14 | ||
BE544065D BE544065A (en) | 1953-08-14 | ||
BE548876D BE548876A (en) | 1953-08-14 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE531122D BE531122A (en) | 1953-08-14 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE548876D BE548876A (en) | 1953-08-14 |
Country Status (7)
Country | Link |
---|---|
US (2) | US2912611A (en) |
BE (3) | BE548876A (en) |
CH (3) | CH328590A (en) |
DE (1) | DE1015941B (en) |
FR (3) | FR1113771A (en) |
GB (1) | GB750339A (en) |
NL (1) | NL97850C (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3076915A (en) * | 1954-12-24 | 1963-02-05 | Egyesuelt Izzolampa | Cathode assembly and method of making same |
US3159461A (en) * | 1958-10-20 | 1964-12-01 | Bell Telephone Labor Inc | Thermionic cathode |
GB904505A (en) * | 1958-11-25 | 1962-08-29 | Harries Electronics Corp Ltd | Improvements in or relating to electron discharge tubes for television, radar and the like |
NL101694C (en) * | 1959-03-06 | |||
US3113236A (en) * | 1959-06-23 | 1963-12-03 | Philips Corp | Oxide dispenser type cathode |
US3170772A (en) * | 1961-01-05 | 1965-02-23 | Tokyo Shibaura Electric Co | Oxide coated cathodes for electron tubes |
US3160780A (en) * | 1961-01-17 | 1964-12-08 | Philips Corp | Indirectly heated cathode |
NL278653A (en) * | 1961-06-01 | |||
US3263115A (en) * | 1962-05-23 | 1966-07-26 | Gen Electric | Dispenser cathode and method of manufacture |
US3374385A (en) * | 1963-07-10 | 1968-03-19 | Rca Corp | Electron tube cathode with nickel-tungsten alloy base and thin nickel coating |
DE1255207B (en) * | 1963-09-19 | 1967-11-30 | Western Electric Co | Matrix or layer cathode for glow cathode tubes |
US3307241A (en) * | 1963-10-14 | 1967-03-07 | Litton Prec Products Inc | Process for making cathodes |
US3303378A (en) * | 1964-06-17 | 1967-02-07 | Chorney Paul | Monolithic cathode structure |
US3436583A (en) * | 1966-03-15 | 1969-04-01 | Gen Electric | Electron gun |
US3436584A (en) * | 1966-03-15 | 1969-04-01 | Gen Electric | Electron emission source with sharply defined emitting area |
NL6608782A (en) * | 1966-06-24 | 1967-12-27 | ||
US3465400A (en) * | 1967-02-01 | 1969-09-09 | Varian Associates | Method of making cylindrical mesh electrode for electron tubes |
BE759247A (en) * | 1969-11-22 | 1971-05-21 | Philips Nv | DEVICE EQUIPPED WITH AN ELECTRONIC TUBE, AND ELECTRONIC TUBE INTENDED FOR SUCH A DEVICE |
US3803677A (en) * | 1972-04-28 | 1974-04-16 | Air Liquide | Method for making cathodes for electron guns |
US3835327A (en) * | 1972-05-08 | 1974-09-10 | United Aircraft Corp | Triode electron gun for electron beam machines |
US3974414A (en) * | 1975-07-09 | 1976-08-10 | Gte Sylvania Incorporated | Cathode ray tube cathode |
DE2808134A1 (en) * | 1978-02-25 | 1979-08-30 | Licentia Gmbh | Long-life cathode with porous two layer emitter - has emitting layer thinner and of lower porosity than supporting layer |
FR2525808A1 (en) * | 1982-04-23 | 1983-10-28 | Thomson Csf | Thermo-electronic cathode with impregnated porous matrix - brazed to support via interposed compact layer |
DE3485897T2 (en) * | 1983-12-20 | 1993-01-07 | Eev Ltd | ELECTRONIC RADIATOR. |
JPS63224127A (en) * | 1987-03-11 | 1988-09-19 | Hitachi Ltd | Impregnated cathode |
JPH0298921A (en) * | 1988-10-05 | 1990-04-11 | Fujitsu Ltd | Electron gun and manufacture thereof aligner equipped with same electron gun and manufacture of semiconductor device using same aligner |
FR2647257B1 (en) * | 1989-05-19 | 1991-07-05 | Thomson Tubes Electroniques | IMPREGNATED CATHODE WITH REDUCED CAPACITY WITH APPLICATION TO BEAM INDEXING VISUALIZATION TUBES, AND ELECTRONIC TUBES COMPRISING SUCH A DEVICE |
KR920008300B1 (en) * | 1990-09-22 | 1992-09-26 | 삼성전관 주식회사 | The method of manufacturing dispenser-type cathode |
KR930007461B1 (en) * | 1991-04-23 | 1993-08-11 | 주식회사 금성사 | Method of making a dispenser type cathode |
JPH0850849A (en) * | 1994-05-31 | 1996-02-20 | Nec Kansai Ltd | Cathode member and electronic tube using it |
JPH09147735A (en) * | 1995-09-21 | 1997-06-06 | Matsushita Electron Corp | Cathode-ray tube emitter material and manufacture thereof |
JPH11339633A (en) * | 1997-11-04 | 1999-12-10 | Sony Corp | Impregnated cathode and manufacture therefor and electron gun and electronic tube |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733378A (en) * | 1956-01-31 | Thermionic cathodes for electronic discharge devices | ||
US1552310A (en) * | 1923-07-24 | 1925-09-01 | Gen Electric | Electrode for discharge tubes |
US1931254A (en) * | 1928-02-28 | 1933-10-17 | Electrons Inc | Electronic tube |
US2147447A (en) * | 1936-09-21 | 1939-02-14 | Siemens Ag | Glow cathode |
US2275886A (en) * | 1941-04-30 | 1942-03-10 | Gen Electric | Process of activating cathodes |
US2543439A (en) * | 1945-05-02 | 1951-02-27 | Edward A Coomes | Method of manufacturing coated elements for electron tubes |
US2492142A (en) * | 1945-10-17 | 1949-12-27 | Kenneth J Germeshausen | Electric system embodying coldcathode gaseous discharge device |
GB629126A (en) * | 1947-04-14 | 1949-09-13 | British Thomson Houston Co Ltd | Improvements in and relating to cathodes for electric discharge devices |
BE498869A (en) * | 1949-10-25 | |||
US2640949A (en) * | 1951-02-07 | 1953-06-02 | Atomic Energy Commission | Electron source |
US2640950A (en) * | 1951-06-06 | 1953-06-02 | Atomic Energy Commission | Point electron source |
US2741717A (en) * | 1951-06-14 | 1956-04-10 | Siemens Ag | Dispenser type cathode having gettercoated parts |
NL91132C (en) * | 1951-11-29 | |||
BE517981A (en) * | 1952-02-27 | |||
FR1093241A (en) * | 1953-02-16 | 1955-05-02 | ||
NL94233C (en) * | 1954-12-06 |
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0
- BE BE531122D patent/BE531122A/xx unknown
- BE BE544065D patent/BE544065A/xx unknown
- NL NL97850D patent/NL97850C/xx active
- BE BE548876D patent/BE548876A/xx unknown
-
1953
- 1953-08-14 GB GB22495/53A patent/GB750339A/en not_active Expired
-
1954
- 1954-07-28 US US446206A patent/US2912611A/en not_active Expired - Lifetime
- 1954-08-03 FR FR1113771D patent/FR1113771A/en not_active Expired
- 1954-08-11 CH CH328590D patent/CH328590A/en unknown
- 1954-08-14 DE DEI9023A patent/DE1015941B/en active Pending
-
1955
- 1955-11-16 FR FR68247D patent/FR68247E/en not_active Expired
- 1955-11-17 CH CH337954D patent/CH337954A/en unknown
-
1956
- 1956-05-03 US US582595A patent/US3013171A/en not_active Expired - Lifetime
- 1956-06-20 FR FR71337D patent/FR71337E/en not_active Expired
- 1956-06-23 CH CH338908D patent/CH338908A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2912611A (en) | 1959-11-10 |
CH338908A (en) | 1959-06-15 |
FR1113771A (en) | 1956-04-04 |
NL97850C (en) | |
CH337954A (en) | 1959-04-30 |
CH328590A (en) | 1958-03-15 |
BE548876A (en) | |
DE1015941B (en) | 1957-09-19 |
FR68247E (en) | 1958-04-09 |
BE531122A (en) | |
US3013171A (en) | 1961-12-12 |
FR71337E (en) | 1959-12-22 |
GB750339A (en) | 1956-06-13 |