BE813271R - CATHOD BEAM TUBE WITH FAST RETURNING CATHODE - Google Patents

CATHOD BEAM TUBE WITH FAST RETURNING CATHODE

Info

Publication number
BE813271R
BE813271R BE2053530A BE2053530A BE813271R BE 813271 R BE813271 R BE 813271R BE 2053530 A BE2053530 A BE 2053530A BE 2053530 A BE2053530 A BE 2053530A BE 813271 R BE813271 R BE 813271R
Authority
BE
Belgium
Prior art keywords
cathod
beam tube
fast returning
cathode
returning cathode
Prior art date
Application number
BE2053530A
Other languages
Dutch (nl)
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 filed Critical
Application granted granted Critical
Publication of BE813271R publication Critical patent/BE813271R/en

Links

Classifications

    • 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
    • H01J9/08—Manufacture of heaters for indirectly-heated cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
BE2053530A 1973-04-06 1974-04-04 CATHOD BEAM TUBE WITH FAST RETURNING CATHODE BE813271R (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2317446A DE2317446C3 (en) 1973-04-06 1973-04-06 Method of manufacturing a heating element for an indirectly heated cathode

Publications (1)

Publication Number Publication Date
BE813271R true BE813271R (en) 1974-10-04

Family

ID=5877284

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2053530A BE813271R (en) 1973-04-06 1974-04-04 CATHOD BEAM TUBE WITH FAST RETURNING CATHODE

Country Status (10)

Country Link
US (1) US3902093A (en)
JP (1) JPS5513102B2 (en)
BE (1) BE813271R (en)
CA (1) CA1032592A (en)
DE (1) DE2317446C3 (en)
ES (1) ES425053A1 (en)
FR (1) FR2224866B1 (en)
GB (1) GB1461495A (en)
IT (1) IT1007777B (en)
NL (1) NL7404521A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000435A (en) * 1975-06-20 1976-12-28 Westinghouse Electric Corporation Electron gun cathode with a fast warm-up characteristic
JPS5952503B2 (en) * 1975-11-07 1984-12-20 株式会社日立製作所 Substrate metal plate for directly heated oxide cathode
JPS5471550A (en) * 1977-11-18 1979-06-08 Hitachi Ltd Base metal material for direct heating oxide cathode
DE2835490C2 (en) * 1978-08-12 1986-09-18 Standard Elektrik Lorenz Ag, 7000 Stuttgart Process for the production of an indirectly heated cathode
DE2938248A1 (en) * 1979-09-21 1981-03-26 Standard Elektrik Lorenz AG, 70435 Stuttgart HEATING ELEMENT FOR AN INDIRECTLY HEATED CATHODE
JPS573039U (en) * 1980-06-06 1982-01-08
DE3029853C2 (en) * 1980-08-07 1982-08-26 Standard Elektrik Lorenz Ag, 7000 Stuttgart Wehnelt cathode indirectly heated by electron impact
DE19828158C1 (en) * 1998-06-24 1999-11-25 Siemens Ag Indirectly heated cathode, especially for X-ray tube

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017292B (en) * 1956-07-18 1957-10-10 Telefunken Gmbh Aluminum oxide coating for the heating wire of indirectly heated cathodes of electrical discharge tubes and a method for producing an insulating coating on a heating wire
US3029360A (en) * 1958-04-29 1962-04-10 Rca Corp Heater wire coating process
NL268393A (en) * 1960-08-19
DE1146594B (en) * 1961-10-31 1963-04-04 Standard Elektrik Lorenz Ag Two-layer insulation coating for the heating element of indirectly heated cathodes of electrical discharge tubes and process for its production
DE1133835B (en) * 1961-12-16 1962-07-26 Telefunken Patent Process for the production of an indirectly heated cathode for an electrical discharge tube
BE626373A (en) * 1961-12-22
NL281567A (en) * 1962-07-30
DE1281038B (en) * 1962-08-01 1968-10-24 Telefunken Patent Process for the production of an indirectly heated cathode for an electrical discharge tube
US3246197A (en) * 1962-10-02 1966-04-12 Westinghouse Electric Corp Cathode heater having an aluminum oxide and tungesten coating
US3372297A (en) * 1964-09-28 1968-03-05 Varian Associates High frequency electron discharge devices and thermionic cathodes having improved (cvd) refractory insulation coated heater wires
US3737714A (en) * 1964-12-18 1973-06-05 Sylvania Electric Prod Dark coated heater for vacuum tube cathode
US3401297A (en) * 1965-08-23 1968-09-10 Varian Associates Thermionic cathodes for electron discharge devices with improved refractory metal heater wires
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
US3500454A (en) * 1967-11-16 1970-03-10 Sylvania Electric Prod Insulator heater coating for heater-cathode assembly
US3531678A (en) * 1968-06-24 1970-09-29 Raytheon Co Heater with boron nitride coating
US3765939A (en) * 1972-05-10 1973-10-16 Gte Sylvania Inc Method of coating cathode heaters

Also Published As

Publication number Publication date
CA1032592A (en) 1978-06-06
JPS5513102B2 (en) 1980-04-07
JPS5052962A (en) 1975-05-10
FR2224866B1 (en) 1978-11-03
IT1007777B (en) 1976-10-30
NL7404521A (en) 1974-10-08
DE2317446A1 (en) 1974-10-24
FR2224866A1 (en) 1974-10-31
GB1461495A (en) 1977-01-13
DE2317446C3 (en) 1983-11-10
US3902093A (en) 1975-08-26
ES425053A1 (en) 1976-11-16
DE2317446B2 (en) 1977-08-18

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Legal Events

Date Code Title Description
CA Change of address of the owner of the patent

Owner name: *NOKIA GRAETZ G.M.B.H.:OSTLICHE KARL-FRIEDRICH-STR

Effective date: 19890630

RE Patent lapsed

Owner name: NOKIA GRAETZ G.M.B.H.

Effective date: 19900331