FR2288384A1 - Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication - Google Patents
Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabricationInfo
- Publication number
- FR2288384A1 FR2288384A1 FR7531872A FR7531872A FR2288384A1 FR 2288384 A1 FR2288384 A1 FR 2288384A1 FR 7531872 A FR7531872 A FR 7531872A FR 7531872 A FR7531872 A FR 7531872A FR 2288384 A1 FR2288384 A1 FR 2288384A1
- Authority
- FR
- France
- Prior art keywords
- manufacturing process
- control grid
- tube including
- electronic tube
- cathode equipped
- 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.)
- Granted
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2449796A DE2449796C3 (de) | 1974-10-19 | 1974-10-19 | Vorratskathode für eine gittergesteuerte Elektronenröhre und Verfahren zu ihrer Herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2288384A1 true FR2288384A1 (fr) | 1976-05-14 |
FR2288384B1 FR2288384B1 (fr) | 1980-07-18 |
Family
ID=5928705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7531872A Granted FR2288384A1 (fr) | 1974-10-19 | 1975-10-17 | Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication |
Country Status (7)
Country | Link |
---|---|
US (1) | US4031425A (fr) |
JP (1) | JPS563614B2 (fr) |
CA (1) | CA1046132A (fr) |
DE (1) | DE2449796C3 (fr) |
FR (1) | FR2288384A1 (fr) |
GB (1) | GB1525396A (fr) |
NL (1) | NL7511842A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0156450A2 (fr) * | 1981-12-31 | 1985-10-02 | Koninklijke Philips Electronics N.V. | Cathode à réserve et procédé de sa réalisation |
FR2651369A1 (fr) * | 1989-08-22 | 1991-03-01 | Asea Brown Boveri | Gyrotron quasi optique. |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1507544A (en) * | 1975-12-29 | 1978-04-19 | English Electric Valve Co Ltd | Linear beam tubes |
US4361781A (en) * | 1980-05-12 | 1982-11-30 | International Business Machines Corporation | Multiple electron beam cathode ray tube |
KR950006088B1 (ko) * | 1992-06-27 | 1995-06-08 | 주식회사엘지전자 | 함침형 음극 구조체의 함침 펠렛트 및 그 제조방법 |
JP4041742B2 (ja) * | 2001-05-01 | 2008-01-30 | 株式会社荏原製作所 | 電子線装置及び該電子線装置を用いたデバイス製造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2782334A (en) * | 1952-03-10 | 1957-02-19 | Raytheon Mfg Co | Velocity modulated electron discharge devices |
US3119041A (en) * | 1961-12-26 | 1964-01-21 | Gen Electric | Bipotential cathode |
NL6504397A (fr) * | 1965-04-07 | 1966-10-10 | ||
US3377492A (en) * | 1965-08-03 | 1968-04-09 | Hughes Aircraft Co | Flood gun for storage tubes having a dome-shaped cathode and dome-shaped grid electrodes |
US3500110A (en) * | 1967-08-23 | 1970-03-10 | Raytheon Co | Noncurrent intercepting electron beam control element |
US3648096A (en) * | 1968-09-26 | 1972-03-07 | Gen Electric | Electron beam focusing bipotential cathode |
US3558967A (en) * | 1969-06-16 | 1971-01-26 | Varian Associates | Linear beam tube with plural cathode beamlets providing a convergent electron stream |
US3843902A (en) * | 1972-08-24 | 1974-10-22 | Varian Associates | Gridded convergent flow electron gun |
US3818260A (en) * | 1973-03-05 | 1974-06-18 | Sperry Rand Corp | Electron gun with masked cathode and non-intercepting control grid |
-
1974
- 1974-10-19 DE DE2449796A patent/DE2449796C3/de not_active Expired
-
1975
- 1975-10-02 US US05/619,061 patent/US4031425A/en not_active Expired - Lifetime
- 1975-10-09 NL NL7511842A patent/NL7511842A/xx unknown
- 1975-10-16 GB GB42448/75A patent/GB1525396A/en not_active Expired
- 1975-10-16 CA CA237,768A patent/CA1046132A/fr not_active Expired
- 1975-10-16 JP JP12388675A patent/JPS563614B2/ja not_active Expired
- 1975-10-17 FR FR7531872A patent/FR2288384A1/fr active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0156450A2 (fr) * | 1981-12-31 | 1985-10-02 | Koninklijke Philips Electronics N.V. | Cathode à réserve et procédé de sa réalisation |
EP0156450A3 (en) * | 1981-12-31 | 1986-01-08 | N.V. Philips' Gloeilampenfabrieken | Method of manufacturing a dispenser cathode |
FR2651369A1 (fr) * | 1989-08-22 | 1991-03-01 | Asea Brown Boveri | Gyrotron quasi optique. |
CH678671A5 (fr) * | 1989-08-22 | 1991-10-15 | Asea Brown Boveri | |
US5134343A (en) * | 1989-08-22 | 1992-07-28 | Asea Brown Boveri Ltd. | Quasi-optical gyrotron having an electron gun with alternating high and low density electron emitting segments |
Also Published As
Publication number | Publication date |
---|---|
DE2449796A1 (de) | 1976-04-22 |
JPS563614B2 (fr) | 1981-01-26 |
DE2449796C3 (de) | 1980-03-06 |
DE2449796B2 (de) | 1979-05-23 |
CA1046132A (fr) | 1979-01-09 |
JPS5165558A (fr) | 1976-06-07 |
US4031425A (en) | 1977-06-21 |
GB1525396A (en) | 1978-09-20 |
FR2288384B1 (fr) | 1980-07-18 |
NL7511842A (nl) | 1976-04-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2299720A1 (fr) | Source d'electrons a grille de commande et procede de fabrication | |
FR2309970A1 (fr) | Ecran fluorescent structure et son procede de fabrication | |
BE857125A (fr) | Boitier de circuit integre et son procede de fabrication | |
FR2319967A1 (fr) | Cathode a emission de champ et son procede de realisation | |
BE854118A (fr) | Feutre et son procede de fabrication | |
FR2351489A1 (fr) | Source d'electrons thermoionique a grille de commande liee a la cathode | |
BE864409A (fr) | Alliage magnetique et son procede de fabrication | |
BE820085A (fr) | Anode rotative pour tuve a rayons x et son procede de fabrication | |
BE872596A (fr) | Dispositif electrique structure chimiosensible et son procede de fabrication | |
BE760862A (fr) | Armature a circuit imprime et son procede de fabrication | |
FR2353131A1 (fr) | Electrode, notamment en forme de grille, pour tubes electroniques et son procede de fabrication | |
BE877350A (fr) | Plaquette a circuit et son procede de fabrication | |
FR2288384A1 (fr) | Cathode a reserve munie d'un tube electronique comportant une grille de commande et son procede de fabrication | |
BE825296A (fr) | Tube souple et son procede de fabrication | |
FR2401513B1 (fr) | Tube cathodique a masque d'ombre perfore | |
FR2298182A1 (fr) | Procede de fabrication d'un tube a rayons cathodiques | |
BE869130A (fr) | Tube electronique comportant une cathode a incandescence | |
BE853703A (fr) | Anode perfectionnee pour tube a rayons x et son procede de fabrication | |
BE805150A (fr) | Procede d'etamage d'un tube et procede de fabrication d'un element composite a noyau conducteur entoure d'une gaine metallique | |
BE836396A (fr) | Materiau a structure cellulaire et son procede de fabrication | |
FR2345546A1 (fr) | Machine a coudre comportant un bloc electronique de commande | |
FR2342216A1 (fr) | Fermeture arrachable et son procede de fabrication | |
FR2280296A1 (fr) | Composant electronique et son procede de fabrication | |
BE800393A (fr) | Procede de fabrication d'emetteurs d'electrons en silicium a affinite electronique effective negative | |
FR2278154A1 (fr) | Tube electronique a grille |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
DR | Decision of the appeal court due to an appeal at law against decisions of the director of the inpi, except decision of lapse | ||
CD | Change of name or company name |