FR1023290A - Improvements to electron beam focusing devices - Google Patents

Improvements to electron beam focusing devices

Info

Publication number
FR1023290A
FR1023290A FR1023290DA FR1023290A FR 1023290 A FR1023290 A FR 1023290A FR 1023290D A FR1023290D A FR 1023290DA FR 1023290 A FR1023290 A FR 1023290A
Authority
FR
France
Prior art keywords
electron beam
beam focusing
focusing devices
devices
electron
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR1023290A publication Critical patent/FR1023290A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/06—Electron or ion guns
    • H01J23/075—Magnetron injection guns
FR1023290D 1950-08-12 1950-08-12 Improvements to electron beam focusing devices Expired FR1023290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR880461X 1950-08-12

Publications (1)

Publication Number Publication Date
FR1023290A true FR1023290A (en) 1953-03-16

Family

ID=9365072

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1023290D Expired FR1023290A (en) 1950-08-12 1950-08-12 Improvements to electron beam focusing devices

Country Status (4)

Country Link
US (1) US2807739A (en)
DE (1) DE880461C (en)
FR (1) FR1023290A (en)
GB (1) GB715389A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939034A (en) * 1955-06-10 1960-05-31 Bell Telephone Labor Inc Electron gun for slalom focusing systems
US2871394A (en) * 1955-11-28 1959-01-27 Raytheon Mfg Co Electron discharge devices and cathodes therefor
US2935634A (en) * 1956-06-22 1960-05-03 Csf Ion source
US2953707A (en) * 1957-03-29 1960-09-20 Bell Telephone Labor Inc Electron beam focusing system
US3167684A (en) * 1960-01-20 1965-01-26 Johann R Hechtel Klystron tubes
GB958529A (en) * 1961-06-20 1964-05-21 M O Valve Co Ltd Improvements in or relating to electron tubes
GB983640A (en) * 1962-01-16 1965-02-17 M O Valve Co Ltd Improvements in or relating to electron guns
DE1491461A1 (en) * 1965-07-15 1969-05-14 Siemens Ag System for generating a flat electron beam for a running field tube with purely electrostatic focusing
US4021697A (en) * 1975-12-10 1977-05-03 Warnecke Electron Tubes, Inc. Crossed-field amplifier

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL68166C (en) * 1939-12-02
US2530373A (en) * 1943-05-04 1950-11-21 Bell Telephone Labor Inc Ultra high frequency electronic device
NL88043C (en) * 1947-01-09
FR976786A (en) * 1948-10-18 1951-03-22 Csf Electronic optical system for cathodes of electron beam tubes
US2531972A (en) * 1949-02-12 1950-11-28 Csf Ultra short wave transmitting tube
FR986811A (en) * 1949-03-21 1951-08-06 Csf Electron gun for transverse magnetic field wave propagation tubes
FR994545A (en) * 1949-07-07 1951-11-19 Csf Electronic optical system for a beam propagating perpendicular to crossed magnetic and electric fields
US2567674A (en) * 1949-11-08 1951-09-11 Rca Corp Velocity modulated electron discharge device

Also Published As

Publication number Publication date
US2807739A (en) 1957-09-24
GB715389A (en) 1954-09-15
DE880461C (en) 1953-06-22

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