FR939215A - Systèmes de concentration d'électrons - Google Patents
Systèmes de concentration d'électronsInfo
- Publication number
- FR939215A FR939215A FR939215DA FR939215A FR 939215 A FR939215 A FR 939215A FR 939215D A FR939215D A FR 939215DA FR 939215 A FR939215 A FR 939215A
- Authority
- FR
- France
- Prior art keywords
- electron concentration
- concentration systems
- systems
- electron
- concentration
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB255241X | 1939-09-07 | ||
GB250740X | 1940-07-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR939215A true FR939215A (fr) | 1948-11-08 |
Family
ID=26257471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR939215D Expired FR939215A (fr) | 1939-09-07 | 1946-08-13 | Systèmes de concentration d'électrons |
Country Status (5)
Country | Link |
---|---|
US (1) | US2283041A (fr) |
CH (1) | CH255241A (fr) |
DE (1) | DE839837C (fr) |
FR (1) | FR939215A (fr) |
GB (1) | GB534627A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462082A (en) * | 1941-12-19 | 1949-02-22 | Int Standard Electric Corp | Thermionic valve |
US2482151A (en) * | 1944-08-18 | 1949-09-20 | Philips Lab Inc | Cathode-ray projection tube |
US2672568A (en) * | 1951-03-27 | 1954-03-16 | Int Standard Electric Corp | Electron gun for cathode-ray tubes |
US3143685A (en) * | 1961-07-24 | 1964-08-04 | Multi Tron Lab Inc | Character display cathode ray tube |
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 |
GB2087054B (en) * | 1980-09-19 | 1984-03-21 | Shinryo Air Cond | Method and apparatus for incinerating sewage sludge |
-
1939
- 1939-09-07 GB GB25217/39A patent/GB534627A/en not_active Expired
-
1940
- 1940-08-30 US US354882A patent/US2283041A/en not_active Expired - Lifetime
-
1946
- 1946-08-13 FR FR939215D patent/FR939215A/fr not_active Expired
- 1946-11-25 CH CH255241D patent/CH255241A/de unknown
-
1950
- 1950-09-21 DE DEE2163A patent/DE839837C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE839837C (de) | 1952-05-26 |
US2283041A (en) | 1942-05-12 |
CH255241A (de) | 1948-06-15 |
GB534627A (en) | 1941-03-12 |
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