FR871060A - Incandescent cathode for gas or vapor atmosphere discharge tubes - Google Patents

Incandescent cathode for gas or vapor atmosphere discharge tubes

Info

Publication number
FR871060A
FR871060A FR871060DA FR871060A FR 871060 A FR871060 A FR 871060A FR 871060D A FR871060D A FR 871060DA FR 871060 A FR871060 A FR 871060A
Authority
FR
France
Prior art keywords
gas
discharge tubes
vapor atmosphere
atmosphere discharge
incandescent cathode
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 FR871060A publication Critical patent/FR871060A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
FR871060D 1940-03-27 1941-03-25 Incandescent cathode for gas or vapor atmosphere discharge tubes Expired FR871060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL222055X 1940-03-27

Publications (1)

Publication Number Publication Date
FR871060A true FR871060A (en) 1942-04-07

Family

ID=19779413

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871060D Expired FR871060A (en) 1940-03-27 1941-03-25 Incandescent cathode for gas or vapor atmosphere discharge tubes

Country Status (7)

Country Link
US (1) US2319338A (en)
BE (1) BE440990A (en)
CH (1) CH222055A (en)
DE (1) DE1079214B (en)
FR (1) FR871060A (en)
GB (2) GB549992A (en)
NL (1) NL58861C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2276681A1 (en) * 1974-06-28 1976-01-23 Thomson Csf GRID FOR ELECTRONIC TUBE AND TUBE WITH SUCH GRID
US4598226A (en) * 1984-12-17 1986-07-01 Clegg John E Concave conical foil-filament lamp
US4585971A (en) * 1984-12-18 1986-04-29 Clegg John E Flat circular foil-filament lamp
DE3517060A1 (en) * 1985-05-11 1986-11-13 Trützschler GmbH & Co KG, 4050 Mönchengladbach DEVICE ON A CARD WITH A RIBBON INSERT

Also Published As

Publication number Publication date
US2319338A (en) 1943-05-18
NL58861C (en)
BE440990A (en)
GB549992A (en) 1942-12-17
CH222055A (en) 1942-06-30
GB601200A (en) 1948-04-29
DE1079214B (en) 1960-04-07

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