FR2288384B1 - - Google Patents
Info
- Publication number
- FR2288384B1 FR2288384B1 FR7531872A FR7531872A FR2288384B1 FR 2288384 B1 FR2288384 B1 FR 2288384B1 FR 7531872 A FR7531872 A FR 7531872A FR 7531872 A FR7531872 A FR 7531872A FR 2288384 B1 FR2288384 B1 FR 2288384B1
- Authority
- FR
- France
- 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
- 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 FR2288384A1 (fr) | 1976-05-14 |
| FR2288384B1 true FR2288384B1 (enExample) | 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 (enExample) |
| JP (1) | JPS563614B2 (enExample) |
| CA (1) | CA1046132A (enExample) |
| DE (1) | DE2449796C3 (enExample) |
| FR (1) | FR2288384A1 (enExample) |
| GB (1) | GB1525396A (enExample) |
| NL (1) | NL7511842A (enExample) |
Families Citing this family (6)
| 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 |
| NL8105921A (nl) * | 1981-12-31 | 1983-07-18 | Philips Nv | Televisiekamerabuis. |
| CH678671A5 (enExample) * | 1989-08-22 | 1991-10-15 | Asea Brown Boveri | |
| KR950006088B1 (ko) * | 1992-06-27 | 1995-06-08 | 주식회사엘지전자 | 함침형 음극 구조체의 함침 펠렛트 및 그 제조방법 |
| WO2002091421A1 (fr) * | 2001-05-01 | 2002-11-14 | Nikon Corporation | Appareil a faisceau d'electrons et son utilisation pour la fabrication |
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 (enExample) * | 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/en not_active Expired
- 1975-10-16 JP JP12388675A patent/JPS563614B2/ja not_active Expired
- 1975-10-17 FR FR7531872A patent/FR2288384A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2449796A1 (de) | 1976-04-22 |
| NL7511842A (nl) | 1976-04-21 |
| JPS5165558A (enExample) | 1976-06-07 |
| JPS563614B2 (enExample) | 1981-01-26 |
| CA1046132A (en) | 1979-01-09 |
| DE2449796C3 (de) | 1980-03-06 |
| FR2288384A1 (fr) | 1976-05-14 |
| US4031425A (en) | 1977-06-21 |
| GB1525396A (en) | 1978-09-20 |
| DE2449796B2 (de) | 1979-05-23 |
Similar Documents
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 |