FR1050568A - Electron tube - Google Patents

Electron tube

Info

Publication number
FR1050568A
FR1050568A FR1050568DA FR1050568A FR 1050568 A FR1050568 A FR 1050568A FR 1050568D A FR1050568D A FR 1050568DA FR 1050568 A FR1050568 A FR 1050568A
Authority
FR
France
Prior art keywords
electron tube
electron
tube
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1050568A publication Critical patent/FR1050568A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR1050568D 1951-02-08 1952-02-06 Electron tube Expired FR1050568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL298304X 1951-02-08

Publications (1)

Publication Number Publication Date
FR1050568A true FR1050568A (en) 1954-01-08

Family

ID=19783092

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1050568D Expired FR1050568A (en) 1951-02-08 1952-02-06 Electron tube

Country Status (4)

Country Link
BE (1) BE509019A (en)
CH (1) CH298304A (en)
FR (1) FR1050568A (en)
GB (1) GB701871A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156450A2 (en) * 1981-12-31 1985-10-02 Koninklijke Philips Electronics N.V. Dispenser cathode and method of manufacturing the same
EP0915492A1 (en) * 1997-11-04 1999-05-12 Sony Corporation Impregnated cathode and method of manufacturing the same, electron gun and electron tube

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880342A (en) * 1956-10-25 1959-03-31 Gen Dynamics Corp Electron beam for a cathode ray tube
US2975322A (en) * 1958-12-29 1961-03-14 Raytheon Co Indirectly heated cathodes
NL108689C (en) * 1959-01-23 1900-01-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156450A2 (en) * 1981-12-31 1985-10-02 Koninklijke Philips Electronics N.V. Dispenser cathode and method of manufacturing the same
EP0156450A3 (en) * 1981-12-31 1986-01-08 N.V. Philips' Gloeilampenfabrieken Method of manufacturing a dispenser cathode
EP0915492A1 (en) * 1997-11-04 1999-05-12 Sony Corporation Impregnated cathode and method of manufacturing the same, electron gun and electron tube

Also Published As

Publication number Publication date
GB701871A (en) 1954-01-06
BE509019A (en)
CH298304A (en) 1954-04-30

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