FR1085710A - Porous emissive cathodes - Google Patents

Porous emissive cathodes

Info

Publication number
FR1085710A
FR1085710A FR1085710DA FR1085710A FR 1085710 A FR1085710 A FR 1085710A FR 1085710D A FR1085710D A FR 1085710DA FR 1085710 A FR1085710 A FR 1085710A
Authority
FR
France
Prior art keywords
emissive cathodes
porous
porous emissive
cathodes
emissive
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1085710A publication Critical patent/FR1085710A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR1085710D 1952-10-28 1953-10-28 Porous emissive cathodes Expired FR1085710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2708052A GB733191A (en) 1952-10-28 1952-10-28 Improvements relating to cathodes for electron emissive devices

Publications (1)

Publication Number Publication Date
FR1085710A true FR1085710A (en) 1955-02-07

Family

ID=10253839

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1085710D Expired FR1085710A (en) 1952-10-28 1953-10-28 Porous emissive cathodes
FR67359D Expired FR67359E (en) 1952-10-28 1954-11-05 Porous emissive cathodes

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR67359D Expired FR67359E (en) 1952-10-28 1954-11-05 Porous emissive cathodes

Country Status (2)

Country Link
FR (2) FR1085710A (en)
GB (1) GB733191A (en)

Also Published As

Publication number Publication date
GB733191A (en) 1955-07-06
FR67359E (en) 1958-03-06

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