FR981513A - Improvements to cathode ray oscillographs - Google Patents

Improvements to cathode ray oscillographs

Info

Publication number
FR981513A
FR981513A FR981513DA FR981513A FR 981513 A FR981513 A FR 981513A FR 981513D A FR981513D A FR 981513DA FR 981513 A FR981513 A FR 981513A
Authority
FR
France
Prior art keywords
cathode ray
ray oscillographs
oscillographs
cathode
ray
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR981513A publication Critical patent/FR981513A/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
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
FR981513D 1943-04-28 1943-04-28 Improvements to cathode ray oscillographs Expired FR981513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR981513T 1943-04-28

Publications (1)

Publication Number Publication Date
FR981513A true FR981513A (en) 1951-05-28

Family

ID=9533416

Family Applications (1)

Application Number Title Priority Date Filing Date
FR981513D Expired FR981513A (en) 1943-04-28 1943-04-28 Improvements to cathode ray oscillographs

Country Status (1)

Country Link
FR (1) FR981513A (en)

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