SG4789G - Impregnated cathode - Google Patents

Impregnated cathode

Info

Publication number
SG4789G
SG4789G SG47/89A SG4789A SG4789G SG 4789 G SG4789 G SG 4789G SG 47/89 A SG47/89 A SG 47/89A SG 4789 A SG4789 A SG 4789A SG 4789 G SG4789 G SG 4789G
Authority
SG
Singapore
Prior art keywords
impregnated cathode
impregnated
cathode
Prior art date
Application number
SG47/89A
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 SG4789G publication Critical patent/SG4789G/en

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
    • 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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
SG47/89A 1985-02-08 1989-01-26 Impregnated cathode SG4789G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60023084A JPS61183838A (ja) 1985-02-08 1985-02-08 含浸形カソ−ド

Publications (1)

Publication Number Publication Date
SG4789G true SG4789G (en) 1989-06-09

Family

ID=12100550

Family Applications (1)

Application Number Title Priority Date Filing Date
SG47/89A SG4789G (en) 1985-02-08 1989-01-26 Impregnated cathode

Country Status (5)

Country Link
US (1) US4737679A (ko)
JP (1) JPS61183838A (ko)
KR (1) KR900004762B1 (ko)
GB (1) GB2170950B (ko)
SG (1) SG4789G (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188771B (en) * 1986-04-01 1990-12-19 Ceradyne Inc Dispenser cathode and method of manufacture therefor
GB2196786A (en) * 1986-10-27 1988-05-05 Ceradyne Inc Cathode assembly
JPS63224127A (ja) * 1987-03-11 1988-09-19 Hitachi Ltd 含浸形陰極
NL8702727A (nl) * 1987-11-16 1989-06-16 Philips Nv Scandaatkathode.
US4823044A (en) * 1988-02-10 1989-04-18 Ceradyne, Inc. Dispenser cathode and method of manufacture therefor
KR910003698B1 (en) * 1988-11-11 1991-06-08 Samsung Electronic Devices Cavity reservoir type dispenser cathode and method of the same
NL8900765A (nl) * 1989-03-29 1990-10-16 Philips Nv Scandaatkathode.
KR920001334B1 (ko) * 1989-11-09 1992-02-10 삼성전관 주식회사 디스펜서 음극
KR0147542B1 (ko) * 1989-12-31 1998-08-01 김정배 전자관용 함침형 음극 구조체
US5041757A (en) * 1990-12-21 1991-08-20 Hughes Aircraft Company Sputtered scandate coatings for dispenser cathodes and methods for making same
DE4142535A1 (de) * 1991-12-21 1993-06-24 Philips Patentverwaltung Scandat-kathode und verfahren zur ihrer herstellung
KR950012511A (ko) * 1993-10-05 1995-05-16 이헌조 음극선관용 함침형 음극
US6034469A (en) * 1995-06-09 2000-03-07 Kabushiki Kaisha Toshiba Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assembly
DE19527723A1 (de) * 1995-07-31 1997-02-06 Philips Patentverwaltung Elektrische Entladungsröhre oder Entladungslampe und Scandat-Vorratskathode
JPH0982233A (ja) * 1995-09-18 1997-03-28 Hitachi Ltd 電子放射物質層を有する陰極を備えた電子管
US6495949B1 (en) * 1999-11-03 2002-12-17 Orion Electric Co., Ltd. Electron tube cathode
DE19961672B4 (de) * 1999-12-21 2009-04-09 Philips Intellectual Property & Standards Gmbh Scandat-Vorratskathode

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155864A (en) * 1960-03-21 1964-11-03 Gen Electric Dispenser cathode
JPS6023454B2 (ja) * 1978-11-29 1985-06-07 株式会社日立製作所 電子管陰極
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
EP0019922A1 (de) * 1979-06-05 1980-12-10 Heinz G. Riss Tellerfuss-Transportanker mit Hebekopf
GB2060991A (en) * 1979-09-20 1981-05-07 Matsushita Electric Ind Co Ltd Oxide-coated cathode and method of producing the same
JPS58154131A (ja) * 1982-03-10 1983-09-13 Hitachi Ltd 含浸形陰極
NL8201371A (nl) * 1982-04-01 1983-11-01 Philips Nv Werkwijzen voor het vervaardigen van een naleveringskathode en naleveringskathode vervaardigd volgens deze werkwijzen.
JPS6086729A (ja) * 1983-10-19 1985-05-16 Hitachi Ltd 含浸形陰極
JPS60138822A (ja) * 1983-12-27 1985-07-23 Hitachi Ltd 含浸形陰極
JPS60170137A (ja) * 1984-02-15 1985-09-03 Hitachi Ltd 熱陰極
JPH0719530B2 (ja) * 1984-06-29 1995-03-06 株式会社日立製作所 陰極線管
NL8403032A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode, naleveringskathode vervaardigd met deze werkwijze.

Also Published As

Publication number Publication date
KR860006822A (ko) 1986-09-15
GB2170950B (en) 1988-09-21
US4737679A (en) 1988-04-12
JPS61183838A (ja) 1986-08-16
GB2170950A (en) 1986-08-13
GB8602448D0 (en) 1986-03-05
KR900004762B1 (ko) 1990-07-05

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