FR657054A - Cathode à incandescence pour dispositifs à décharge - Google Patents

Cathode à incandescence pour dispositifs à décharge

Info

Publication number
FR657054A
FR657054A FR657054DA FR657054A FR 657054 A FR657054 A FR 657054A FR 657054D A FR657054D A FR 657054DA FR 657054 A FR657054 A FR 657054A
Authority
FR
France
Prior art keywords
discharge devices
incandescent cathode
incandescent
cathode
discharge
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 FR657054A publication Critical patent/FR657054A/fr
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
    • H01J61/0675—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
    • 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
FR657054D 1926-06-09 1927-06-07 Cathode à incandescence pour dispositifs à décharge Expired FR657054A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE272440X 1926-06-09

Publications (1)

Publication Number Publication Date
FR657054A true FR657054A (fr) 1929-05-16

Family

ID=6010243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR657054D Expired FR657054A (fr) 1926-06-09 1927-06-07 Cathode à incandescence pour dispositifs à décharge

Country Status (4)

Country Link
US (2) US1817636A (fr)
FR (1) FR657054A (fr)
GB (1) GB272440A (fr)
NL (1) NL24414C (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE486753A (fr) * 1948-01-15
US2552654A (en) * 1948-08-30 1951-05-15 Rca Corp Heat-resistant cathode coatings
US2662196A (en) * 1948-11-04 1953-12-08 Western Union Telegraph Co Concentrated arc lamp
US2663816A (en) * 1949-09-28 1953-12-22 Sylvania Electric Prod Electric discharge lamp
US2605432A (en) * 1949-10-19 1952-07-29 Electrons Inc Indirectly heated cathode structure
BE518639A (fr) * 1952-03-24
US2845567A (en) * 1954-02-04 1958-07-29 Itt Indirectly heated thermionic cathode
BE545445A (fr) * 1955-02-23
DE1035791B (de) * 1956-05-29 1958-08-07 Philips Nv Glimmentladungsroehre mit aktivierter kalter Kathode und Verfahren zum Herstellen einer mit einer solchen Kathode versehenen Roehre

Also Published As

Publication number Publication date
US1817636A (en) 1931-08-04
NL24414C (fr)
GB272440A (en) 1928-04-26
US1925701A (en) 1933-09-05

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