FR1029729A - Electron emitting material - Google Patents

Electron emitting material

Info

Publication number
FR1029729A
FR1029729A FR1029729DA FR1029729A FR 1029729 A FR1029729 A FR 1029729A FR 1029729D A FR1029729D A FR 1029729DA FR 1029729 A FR1029729 A FR 1029729A
Authority
FR
France
Prior art keywords
emitting material
electron emitting
electron
emitting
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR1029729A publication Critical patent/FR1029729A/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
    • H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
FR1029729D 1950-01-26 1950-12-15 Electron emitting material Expired FR1029729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US684059XA 1950-01-26 1950-01-26

Publications (1)

Publication Number Publication Date
FR1029729A true FR1029729A (en) 1953-06-05

Family

ID=22082368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1029729D Expired FR1029729A (en) 1950-01-26 1950-12-15 Electron emitting material

Country Status (2)

Country Link
FR (1) FR1029729A (en)
GB (1) GB684059A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830027A (en) * 1954-11-22 1958-04-08 Csf Oxide-coated cathodes for thermionic tubes
EP0764963A1 (en) * 1995-09-21 1997-03-26 Matsushita Electronics Corporation Emitter material for cathode ray tube and a method for manufacturing the same
US5925976A (en) * 1996-11-12 1999-07-20 Matsushita Electronics Corporation Cathode for electron tube having specific emissive material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830027A (en) * 1954-11-22 1958-04-08 Csf Oxide-coated cathodes for thermionic tubes
EP0764963A1 (en) * 1995-09-21 1997-03-26 Matsushita Electronics Corporation Emitter material for cathode ray tube and a method for manufacturing the same
US6033280A (en) * 1995-09-21 2000-03-07 Matsushita Electronics Corporation Method for manufacturing emitter for cathode ray tube
US6222308B1 (en) 1995-09-21 2001-04-24 Matsushita Electronics Corporation Emitter material for cathode ray tube having at least one alkaline earth metal carbonate dispersed or concentrated in a mixed crystal or solid solution
US5925976A (en) * 1996-11-12 1999-07-20 Matsushita Electronics Corporation Cathode for electron tube having specific emissive material

Also Published As

Publication number Publication date
GB684059A (en) 1952-12-10

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