NL7901541A - Direkt-verhit kathodestelsel. - Google Patents

Direkt-verhit kathodestelsel.

Info

Publication number
NL7901541A
NL7901541A NL7901541A NL7901541A NL7901541A NL 7901541 A NL7901541 A NL 7901541A NL 7901541 A NL7901541 A NL 7901541A NL 7901541 A NL7901541 A NL 7901541A NL 7901541 A NL7901541 A NL 7901541A
Authority
NL
Netherlands
Prior art keywords
cathody
heated
direct
heated cathody
cathody system
Prior art date
Application number
NL7901541A
Other languages
English (en)
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL7901541A publication Critical patent/NL7901541A/nl

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
    • 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
NL7901541A 1978-05-02 1979-02-27 Direkt-verhit kathodestelsel. NL7901541A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5292678A JPS54144170A (en) 1978-05-02 1978-05-02 Cathode constituent of direct heating type

Publications (1)

Publication Number Publication Date
NL7901541A true NL7901541A (nl) 1979-11-06

Family

ID=12928431

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7901541A NL7901541A (nl) 1978-05-02 1979-02-27 Direkt-verhit kathodestelsel.

Country Status (6)

Country Link
US (1) US4251746A (nl)
JP (1) JPS54144170A (nl)
DE (1) DE2907766A1 (nl)
FI (1) FI790659A (nl)
GB (1) GB2020891B (nl)
NL (1) NL7901541A (nl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8100928A (nl) * 1981-02-26 1982-09-16 Philips Nv Oxydkathode.
DE3534793A1 (de) * 1985-09-30 1987-04-02 Leybold Heraeus Gmbh & Co Kg Einspannvorrichtung fuer spiralfoermige drahtkatoden
US4789807A (en) * 1987-08-31 1988-12-06 Rca Licensing Corp. Electron gun assembly having a reinforced heater tab
US4931691A (en) * 1988-08-30 1990-06-05 Rca Licensing Corp. Electron gun assembly having a reinforced heater tab with locating means
AU5937196A (en) * 1995-06-05 1996-12-24 Ceradyne, Inc. Directly heated dispenser cathode and method of manufacture therefor
EP1245036B1 (en) * 1999-12-13 2013-06-19 Semequip, Inc. Ion implantation ion source
US7791047B2 (en) * 2003-12-12 2010-09-07 Semequip, Inc. Method and apparatus for extracting ions from an ion source for use in ion implantation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677778A (en) * 1952-03-31 1954-05-04 Atomic Energy Commission Linear cathode
US3263115A (en) * 1962-05-23 1966-07-26 Gen Electric Dispenser cathode and method of manufacture
US3541382A (en) * 1967-12-11 1970-11-17 Tokyo Shibaura Electric Co Direct heated cathode member for an electron tube
JPS536560A (en) * 1976-07-07 1978-01-21 Hitachi Ltd Manufacture of cathode for direct heating type cathode ray tube
US4082938A (en) * 1977-05-10 1978-04-04 Igor Vladimirovich Shergov Thermionic heater cathode assembly of electron-beam gun
US4150318A (en) * 1978-04-17 1979-04-17 Gte Sylvania Incorporated Low mass, indirectly heated, fast warm-up heater-cathode assembly

Also Published As

Publication number Publication date
DE2907766A1 (de) 1979-11-08
FI790659A (fi) 1979-11-03
GB2020891B (en) 1982-04-07
JPS54144170A (en) 1979-11-10
GB2020891A (en) 1979-11-21
US4251746A (en) 1981-02-17

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed