GB389795A - Improvements in and relating to self-heating cathodes for electric discharge tubes - Google Patents

Improvements in and relating to self-heating cathodes for electric discharge tubes

Info

Publication number
GB389795A
GB389795A GB17506/31A GB1750631A GB389795A GB 389795 A GB389795 A GB 389795A GB 17506/31 A GB17506/31 A GB 17506/31A GB 1750631 A GB1750631 A GB 1750631A GB 389795 A GB389795 A GB 389795A
Authority
GB
United Kingdom
Prior art keywords
per cent
oxide
self
electric discharge
discharge tubes
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
GB17506/31A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB389795A publication Critical patent/GB389795A/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

Landscapes

  • Discharge Lamp (AREA)
GB17506/31A 1930-06-16 1931-06-16 Improvements in and relating to self-heating cathodes for electric discharge tubes Expired GB389795A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB389795A true GB389795A (en) 1933-03-23

Family

ID=6371477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17506/31A Expired GB389795A (en) 1930-06-16 1931-06-16 Improvements in and relating to self-heating cathodes for electric discharge tubes

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974434C (de) * 1947-06-05 1960-12-22 Patra Patent Treuhand Elektrische Niederdruck-Entladungslampe
FR2347774A1 (fr) * 1976-04-09 1977-11-04 Gte Sylvania Inc Perfectionnements apportes aux lampes a decharge a vapeur de mercure a haute pression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974434C (de) * 1947-06-05 1960-12-22 Patra Patent Treuhand Elektrische Niederdruck-Entladungslampe
FR2347774A1 (fr) * 1976-04-09 1977-11-04 Gte Sylvania Inc Perfectionnements apportes aux lampes a decharge a vapeur de mercure a haute pression

Also Published As

Publication number Publication date
NL35601C (da)
FR718745A (fr) 1932-01-28

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