FR2133638B1 - - Google Patents

Info

Publication number
FR2133638B1
FR2133638B1 FR7212756A FR7212756A FR2133638B1 FR 2133638 B1 FR2133638 B1 FR 2133638B1 FR 7212756 A FR7212756 A FR 7212756A FR 7212756 A FR7212756 A FR 7212756A FR 2133638 B1 FR2133638 B1 FR 2133638B1
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
FR7212756A
Other languages
French (fr)
Other versions
FR2133638A1 (OSRAM
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.)
EMI Varian Ltd
Original Assignee
EMI Varian Ltd
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 EMI Varian Ltd filed Critical EMI Varian Ltd
Publication of FR2133638A1 publication Critical patent/FR2133638A1/fr
Application granted granted Critical
Publication of FR2133638B1 publication Critical patent/FR2133638B1/fr
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
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/083—Electrostatic focusing arrangements
FR7212756A 1971-04-14 1972-04-12 Expired FR2133638B1 (OSRAM)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939971 1971-04-14
GB622172*[A GB1384704A (en) 1971-04-14 1972-02-10 Electron discharge devices

Publications (2)

Publication Number Publication Date
FR2133638A1 FR2133638A1 (OSRAM) 1972-12-01
FR2133638B1 true FR2133638B1 (OSRAM) 1977-12-23

Family

ID=26240532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7212756A Expired FR2133638B1 (OSRAM) 1971-04-14 1972-04-12

Country Status (4)

Country Link
US (1) US3780332A (OSRAM)
DE (1) DE2217688A1 (OSRAM)
FR (1) FR2133638B1 (OSRAM)
GB (1) GB1384704A (OSRAM)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346756A (en) * 1965-04-13 1967-10-10 Robert J Doyle Electrode support for an optical fiber disc
GB1161877A (en) * 1965-11-03 1969-08-20 Emi Ltd Improvements relating to Electron Discharged Devices, especially Klystrons.
US3436588A (en) * 1966-11-10 1969-04-01 Varian Associates Electrostatically focused klystron having cavities with common wall structures and reentrant focusing lens housings
US3483419A (en) * 1967-12-18 1969-12-09 Varian Associates Velocity modulation tube with r.f. lossy leads to the beam focusing lenses

Also Published As

Publication number Publication date
US3780332A (en) 1973-12-18
GB1384704A (en) 1975-02-19
DE2217688A1 (de) 1972-11-09
FR2133638A1 (OSRAM) 1972-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse