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
Application number
FR149764A
Other languages
French (fr)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR1582070A publication Critical patent/FR1582070A/fr
Expired legal-status Critical Current

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
FR149764A 1968-04-26 1968-04-26 Expired FR1582070A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

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Legal Events

Date Code Title Description
ST Notification of lapse