FR1031923A - Method and device for concentrating electron beams - Google Patents

Method and device for concentrating electron beams

Info

Publication number
FR1031923A
FR1031923A FR1031923DA FR1031923A FR 1031923 A FR1031923 A FR 1031923A FR 1031923D A FR1031923D A FR 1031923DA FR 1031923 A FR1031923 A FR 1031923A
Authority
FR
France
Prior art keywords
electron beams
concentrating
concentrating electron
beams
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)
Inventor
Augustin Dubec
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.)
Radiotechnique SA
Original Assignee
Radiotechnique 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 Radiotechnique SA filed Critical Radiotechnique SA
Application granted granted Critical
Publication of FR1031923A publication Critical patent/FR1031923A/en
Expired legal-status Critical Current

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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
FR1031923D 1951-01-31 1951-01-31 Method and device for concentrating electron beams Expired FR1031923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1031923T 1951-01-31

Publications (1)

Publication Number Publication Date
FR1031923A true FR1031923A (en) 1953-06-29

Family

ID=9583443

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1031923D Expired FR1031923A (en) 1951-01-31 1951-01-31 Method and device for concentrating electron beams

Country Status (1)

Country Link
FR (1) FR1031923A (en)

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