CA956694A - Method of manufacturing an indirectly heated cathode and cathode manufactured according to this method - Google Patents

Method of manufacturing an indirectly heated cathode and cathode manufactured according to this method

Info

Publication number
CA956694A
CA956694A CA158,798A CA158798A CA956694A CA 956694 A CA956694 A CA 956694A CA 158798 A CA158798 A CA 158798A CA 956694 A CA956694 A CA 956694A
Authority
CA
Canada
Prior art keywords
cathode
manufacturing
manufactured according
indirectly heated
heated cathode
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
CA158,798A
Other versions
CA158798S (en
Inventor
Antonius J. A. Van Stratum
Theodorus H. Weekers
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 CA956694A publication Critical patent/CA956694A/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
    • H01J1/26—Supports for the emissive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)
CA158,798A 1971-12-16 1972-12-08 Method of manufacturing an indirectly heated cathode and cathode manufactured according to this method Expired CA956694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7117226A NL7117226A (en) 1971-12-16 1971-12-16

Publications (1)

Publication Number Publication Date
CA956694A true CA956694A (en) 1974-10-22

Family

ID=19814707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA158,798A Expired CA956694A (en) 1971-12-16 1972-12-08 Method of manufacturing an indirectly heated cathode and cathode manufactured according to this method

Country Status (8)

Country Link
US (1) US3823453A (en)
JP (1) JPS5228631B2 (en)
BE (1) BE792763A (en)
CA (1) CA956694A (en)
DE (1) DE2258160B2 (en)
FR (1) FR2163606B1 (en)
GB (1) GB1349128A (en)
NL (1) NL7117226A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739010B2 (en) * 1973-11-02 1982-08-19
US3919751A (en) * 1974-02-08 1975-11-18 Gte Sylvania Inc Method of making fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof
JPS50146466U (en) * 1974-05-20 1975-12-04
JPS6016059B2 (en) * 1977-08-11 1985-04-23 ソニー株式会社 Cathode ray tube manufacturing method
NL8100928A (en) * 1981-02-26 1982-09-16 Philips Nv OXYD CATHODE.
US4781640A (en) * 1985-01-24 1988-11-01 Varian Associates, Inc. Basket electrode shaping
JPH0677435B2 (en) * 1985-03-18 1994-09-28 株式会社日立製作所 Method for manufacturing indirectly heated cathode
KR960007663Y1 (en) * 1990-12-29 1996-09-06 Lg Electronics Inc Cathode structure
TW259878B (en) * 1993-03-17 1995-10-11 Toshiba Co Ltd
CN101075515B (en) * 2007-06-28 2011-09-07 北京工业大学 High-curren density heterogeneous beam electron source

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1897933A (en) * 1928-08-02 1933-02-14 Peoples Gas By Products Corp Electrode for electron discharge tubes and method of forming the same
US2726308A (en) * 1952-02-13 1955-12-06 Cinamon Lionel Welding method
US2970204A (en) * 1958-02-27 1961-01-31 Piceu Electric welding method and composition
US2978606A (en) * 1959-01-02 1961-04-04 Sylvania Electric Prod Electron discharge device
US3535757A (en) * 1968-03-22 1970-10-27 Rca Corp Method for making cathode assembly for electron tube

Also Published As

Publication number Publication date
FR2163606B1 (en) 1977-04-08
DE2258160A1 (en) 1973-06-20
FR2163606A1 (en) 1973-07-27
JPS5228631B2 (en) 1977-07-27
DE2258160B2 (en) 1977-06-02
BE792763A (en) 1973-06-14
US3823453A (en) 1974-07-16
JPS4866968A (en) 1973-09-13
NL7117226A (en) 1973-06-19
GB1349128A (en) 1974-03-27

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