FR718745A - Gas-filled electric discharge tube - Google Patents

Gas-filled electric discharge tube

Info

Publication number
FR718745A
FR718745A FR718745DA FR718745A FR 718745 A FR718745 A FR 718745A FR 718745D A FR718745D A FR 718745DA FR 718745 A FR718745 A FR 718745A
Authority
FR
France
Prior art keywords
gas
electric discharge
discharge tube
filled electric
filled
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 FR718745A publication Critical patent/FR718745A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • 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
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
FR718745D 1930-06-16 1931-06-16 Gas-filled electric discharge tube Expired FR718745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE389795X 1930-06-16

Publications (1)

Publication Number Publication Date
FR718745A true FR718745A (en) 1932-01-28

Family

ID=6371477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR718745D Expired FR718745A (en) 1930-06-16 1931-06-16 Gas-filled electric discharge tube

Country Status (3)

Country Link
FR (1) FR718745A (en)
GB (1) GB389795A (en)
NL (1) NL35601C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE482916A (en) * 1947-06-05
US4044276A (en) * 1976-04-09 1977-08-23 Gte Sylvania Incorporated High pressure mercury vapor discharge lamp having improved electrodes

Also Published As

Publication number Publication date
GB389795A (en) 1933-03-23
NL35601C (en)

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