FR1582070A - - Google Patents
Info
- Publication number
- FR1582070A FR1582070A FR149764A FR1582070DA FR1582070A FR 1582070 A FR1582070 A FR 1582070A FR 149764 A FR149764 A FR 149764A FR 1582070D A FR1582070D A FR 1582070DA FR 1582070 A FR1582070 A FR 1582070A
- 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
- 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
- H01J3/029—Schematic arrangements for beam forming
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR149764 | 1968-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1582070A true FR1582070A (en) | 1969-09-26 |
Family
ID=8649513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR149764A Expired FR1582070A (en) | 1968-04-26 | 1968-04-26 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3651360A (en) |
BE (1) | BE731965A (en) |
DE (1) | DE1919451B2 (en) |
FR (1) | FR1582070A (en) |
GB (1) | GB1234517A (en) |
LU (1) | LU58469A1 (en) |
NL (1) | NL6906459A (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3983446A (en) * | 1971-07-06 | 1976-09-28 | Varian Associates | Gridded convergent flow electron gun for linear beam tubes |
DE2210160C3 (en) * | 1972-03-02 | 1975-04-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electron gun system for time-of-flight tubes |
IL43254A (en) * | 1972-09-28 | 1976-02-29 | Varian Ass Ciates | Gridded electron gun employing a concave cathode emitter |
US3852633A (en) * | 1972-12-13 | 1974-12-03 | Varian Associates | Gridded electron gun |
US3818260A (en) * | 1973-03-05 | 1974-06-18 | Sperry Rand Corp | Electron gun with masked cathode and non-intercepting control grid |
US4593230A (en) * | 1982-03-29 | 1986-06-03 | Litton Systems, Inc. | Dual-mode electron gun |
US4680500A (en) * | 1986-03-06 | 1987-07-14 | The United States Of America As Represented By The Secretary Of The Air Force | Integral grid/cathode for vacuum tubes |
GB9712243D0 (en) * | 1997-06-13 | 1997-08-13 | Eev Ltd | Grids |
US7345290B2 (en) * | 1999-10-07 | 2008-03-18 | Agere Systems Inc | Lens array for electron beam lithography tool |
GB0123451D0 (en) | 2001-09-28 | 2001-11-21 | Mitel Knowledge Corp | Device for reducing structural-acoustical coupling between the diaphragm vibration field and the enclosure acoustic modes |
FR2861215B1 (en) * | 2003-10-20 | 2006-05-19 | Calhene | ELECTRON GUN WITH FOCUSING ANODE, FORMING A WINDOW OF THIS CANON, APPLICATION TO IRRADIATION AND STERILIZATION |
KR101112692B1 (en) * | 2006-10-23 | 2012-02-29 | 가부시키가이샤 알박 | Method of controlling electron beam focusing of pierce type electron gun and control device therefor |
US8339024B2 (en) * | 2009-07-20 | 2012-12-25 | Hitachi Zosen Corporation | Methods and apparatuses for reducing heat on an emitter exit window |
FR3077922B1 (en) * | 2018-02-15 | 2020-11-27 | Thales Sa | CIRCULAR GRID FOR A CYLINDRICAL CATHODE OF HYPERFREQUENCY TUBE WITH LINEAR BEAM, AND ASSOCIATED REMOVAL PROCESS |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2398829A (en) * | 1941-05-28 | 1946-04-23 | Rca Corp | Electron discharge device |
US2758234A (en) * | 1952-11-28 | 1956-08-07 | Loewe Opta Ag | Electrode system for cathode ray tubes |
US3107313A (en) * | 1959-10-30 | 1963-10-15 | Johann R Hechtel | Velocity modulated electron tube with cathode means providing plural electron streams |
US3154711A (en) * | 1961-06-19 | 1964-10-27 | Gen Electric | Electron beam focusing by means of contact differences of potential |
US3558967A (en) * | 1969-06-16 | 1971-01-26 | Varian Associates | Linear beam tube with plural cathode beamlets providing a convergent electron stream |
-
1968
- 1968-04-26 FR FR149764A patent/FR1582070A/fr not_active Expired
-
1969
- 1969-04-07 DE DE19691919451 patent/DE1919451B2/en active Granted
- 1969-04-23 LU LU58469D patent/LU58469A1/xx unknown
- 1969-04-23 US US818735A patent/US3651360A/en not_active Expired - Lifetime
- 1969-04-23 BE BE731965D patent/BE731965A/xx unknown
- 1969-04-25 NL NL6906459A patent/NL6906459A/xx unknown
- 1969-04-28 GB GB1234517D patent/GB1234517A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1234517A (en) | 1971-06-03 |
NL6906459A (en) | 1969-10-28 |
BE731965A (en) | 1969-10-01 |
US3651360A (en) | 1972-03-21 |
DE1919451A1 (en) | 1969-11-06 |
LU58469A1 (en) | 1969-07-22 |
DE1919451B2 (en) | 1972-07-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |