NL272248A - - Google Patents

Info

Publication number
NL272248A
NL272248A NL272248DA NL272248A NL 272248 A NL272248 A NL 272248A NL 272248D A NL272248D A NL 272248DA NL 272248 A NL272248 A NL 272248A
Authority
NL
Netherlands
Application number
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.)
Publication of NL272248A publication Critical patent/NL272248A/xx

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)
NL272248D 1960-12-15 NL272248A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR847062A FR1282691A (fr) 1960-12-15 1960-12-15 Perfectionnement aux cathodes à oxydes à chauffage indirect pour tubes électroniques

Publications (1)

Publication Number Publication Date
NL272248A true NL272248A (fr)

Family

ID=8744850

Family Applications (1)

Application Number Title Priority Date Filing Date
NL272248D NL272248A (fr) 1960-12-15

Country Status (6)

Country Link
US (1) US3262814A (fr)
DE (1) DE1146207B (fr)
FR (1) FR1282691A (fr)
GB (1) GB994471A (fr)
LU (1) LU40949A1 (fr)
NL (1) NL272248A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500454A (en) * 1967-11-16 1970-03-10 Sylvania Electric Prod Insulator heater coating for heater-cathode assembly
US3958146A (en) * 1974-02-08 1976-05-18 Gte Sylvania Incorporated Fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof
US4009409A (en) * 1975-09-02 1977-02-22 Gte Sylvania Incorporated Fast warmup cathode and method of making same
NL8002665A (nl) * 1980-05-09 1981-12-01 Philips Nv Werkwijze voor het van een thermisch zwart oppervlak voorzien van een metalen onderdeel.
JPH0677435B2 (ja) * 1985-03-18 1994-09-28 株式会社日立製作所 傍熱形陰極の製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074232B (de) * 1947-02-15 1960-01-28 Gen Electric Verfahren zum Herstellen eines festhaftenden, lichtzerstreuenden Überzugs aus Siliciumdioxyd auf der Wandungsoberfläche der Glashülle einer elektrischen Glühlampe oder Entladungsröhre
BE518861A (fr) * 1952-04-01
US2817572A (en) * 1954-04-06 1957-12-24 Telefunken Ges Fur Drahtlase T Electrodes for electron discharge tubes
US2891879A (en) * 1957-07-26 1959-06-23 Westinghouse Electric Corp Black coating of high thermal emissivity and process for applying the same
NL95320C (fr) * 1957-10-04
US2987423A (en) * 1958-09-26 1961-06-06 Rca Corp Heat radiating coatings
US3068337A (en) * 1958-12-05 1962-12-11 Gen Electric Vaporizer and method for making the same
NL101694C (fr) * 1959-03-06

Also Published As

Publication number Publication date
LU40949A1 (fr) 1962-02-12
GB994471A (en) 1965-06-10
US3262814A (en) 1966-07-26
FR1282691A (fr) 1962-01-27
DE1146207B (de) 1963-03-28

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