FR1408087A - cathode elements for electric discharge tubes and discharge tubes provided with at least one such element - Google Patents

cathode elements for electric discharge tubes and discharge tubes provided with at least one such element

Info

Publication number
FR1408087A
FR1408087A FR988500A FR988500A FR1408087A FR 1408087 A FR1408087 A FR 1408087A FR 988500 A FR988500 A FR 988500A FR 988500 A FR988500 A FR 988500A FR 1408087 A FR1408087 A FR 1408087A
Authority
FR
France
Prior art keywords
discharge tubes
cathode elements
electric discharge
electric
tubes provided
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
FR988500A
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
Priority claimed from NL63298210A external-priority patent/NL142273B/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR988500A priority Critical patent/FR1408087A/en
Application granted granted Critical
Publication of FR1408087A publication Critical patent/FR1408087A/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
    • H01J1/18—Supports; Vibration-damping arrangements
FR988500A 1963-09-20 1964-09-18 cathode elements for electric discharge tubes and discharge tubes provided with at least one such element Expired FR1408087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR988500A FR1408087A (en) 1963-09-20 1964-09-18 cathode elements for electric discharge tubes and discharge tubes provided with at least one such element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL63298210A NL142273B (en) 1963-09-20 1963-09-20 DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD.
FR988500A FR1408087A (en) 1963-09-20 1964-09-18 cathode elements for electric discharge tubes and discharge tubes provided with at least one such element

Publications (1)

Publication Number Publication Date
FR1408087A true FR1408087A (en) 1965-08-06

Family

ID=26210023

Family Applications (1)

Application Number Title Priority Date Filing Date
FR988500A Expired FR1408087A (en) 1963-09-20 1964-09-18 cathode elements for electric discharge tubes and discharge tubes provided with at least one such element

Country Status (1)

Country Link
FR (1) FR1408087A (en)

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