FR943875A - Cathodes for electronic discharge tubes - Google Patents

Cathodes for electronic discharge tubes

Info

Publication number
FR943875A
FR943875A FR943875DA FR943875A FR 943875 A FR943875 A FR 943875A FR 943875D A FR943875D A FR 943875DA FR 943875 A FR943875 A FR 943875A
Authority
FR
France
Prior art keywords
cathodes
discharge tubes
electronic discharge
electronic
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
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR943875A publication Critical patent/FR943875A/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
FR943875D 1947-03-06 1947-03-06 Cathodes for electronic discharge tubes Expired FR943875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR943875T 1947-03-06

Publications (1)

Publication Number Publication Date
FR943875A true FR943875A (en) 1949-03-21

Family

ID=9471477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR943875D Expired FR943875A (en) 1947-03-06 1947-03-06 Cathodes for electronic discharge tubes

Country Status (1)

Country Link
FR (1) FR943875A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395595A1 (en) * 1977-06-21 1979-01-19 Siemens Ag X=Ray tube with heated cathode elements as emitter - applies voltage across ends with cut=out of different depths in strip
WO2008146248A1 (en) 2007-06-01 2008-12-04 Philips Intellectual Property & Standards Gmbh X-ray emitting foil with temporary fixing bars and preparing method therefore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395595A1 (en) * 1977-06-21 1979-01-19 Siemens Ag X=Ray tube with heated cathode elements as emitter - applies voltage across ends with cut=out of different depths in strip
WO2008146248A1 (en) 2007-06-01 2008-12-04 Philips Intellectual Property & Standards Gmbh X-ray emitting foil with temporary fixing bars and preparing method therefore
CN101681778B (en) * 2007-06-01 2012-09-26 皇家飞利浦电子股份有限公司 X-ray emitting foil with temporary fixing bars and preparing method thereofe

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