FR579100A - Tube à décharge à cathode incandescente - Google Patents

Tube à décharge à cathode incandescente

Info

Publication number
FR579100A
FR579100A FR579100DA FR579100A FR 579100 A FR579100 A FR 579100A FR 579100D A FR579100D A FR 579100DA FR 579100 A FR579100 A FR 579100A
Authority
FR
France
Prior art keywords
discharge tube
cathode discharge
incandescent cathode
incandescent
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
English (en)
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 FR579100A publication Critical patent/FR579100A/fr
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
FR579100D 1923-03-29 1924-03-21 Tube à décharge à cathode incandescente Expired FR579100A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL213605X 1923-03-29

Publications (1)

Publication Number Publication Date
FR579100A true FR579100A (fr) 1924-10-09

Family

ID=19778953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR579100D Expired FR579100A (fr) 1923-03-29 1924-03-21 Tube à décharge à cathode incandescente

Country Status (5)

Country Link
US (1) US1875002A (fr)
DE (1) DE478441C (fr)
FR (1) FR579100A (fr)
GB (1) GB213605A (fr)
NL (1) NL17244C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594897A (en) * 1945-09-19 1952-04-29 Bell Telephone Labor Inc Cathode structure for electron discharge tubes

Also Published As

Publication number Publication date
GB213605A (en) 1924-06-05
US1875002A (en) 1932-08-30
DE478441C (de) 1929-07-04
NL17244C (fr)

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