GB2262650A - Impregnated dispenser cathode and manufacture thereof. - Google Patents

Impregnated dispenser cathode and manufacture thereof. Download PDF

Info

Publication number
GB2262650A
GB2262650A GB9218295A GB9218295A GB2262650A GB 2262650 A GB2262650 A GB 2262650A GB 9218295 A GB9218295 A GB 9218295A GB 9218295 A GB9218295 A GB 9218295A GB 2262650 A GB2262650 A GB 2262650A
Authority
GB
United Kingdom
Prior art keywords
sleeve
cathode
impregnated
matrix
projections
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.)
Withdrawn
Application number
GB9218295A
Other languages
English (en)
Other versions
GB9218295D0 (en
Inventor
Se-Hwan Oh
Kwang-Pyo Park
Han-Sin Do
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.)
Samsung SDI Co Ltd
Original Assignee
Samsung Electron Devices Co 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 Samsung Electron Devices Co Ltd filed Critical Samsung Electron Devices Co Ltd
Publication of GB9218295D0 publication Critical patent/GB9218295D0/en
Publication of GB2262650A publication Critical patent/GB2262650A/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/047—Cathodes having impregnated bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electrolytic Production Of Metals (AREA)
GB9218295A 1991-12-20 1992-08-28 Impregnated dispenser cathode and manufacture thereof. Withdrawn GB2262650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910023720A KR930014673A (ko) 1991-12-20 1991-12-20 함침형 음극 구조체 및 그 제조방법

Publications (2)

Publication Number Publication Date
GB9218295D0 GB9218295D0 (en) 1992-10-14
GB2262650A true GB2262650A (en) 1993-06-23

Family

ID=19325414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9218295A Withdrawn GB2262650A (en) 1991-12-20 1992-08-28 Impregnated dispenser cathode and manufacture thereof.

Country Status (4)

Country Link
KR (1) KR930014673A (zh)
DE (1) DE4228680A1 (zh)
GB (1) GB2262650A (zh)
TW (1) TW209907B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1111648A1 (en) * 1999-12-22 2001-06-27 THOMSON TUBES & DISPLAYS S.A. Process for assembling a cathode for a cathode ray tube
RU182187U1 (ru) * 2018-01-09 2018-08-07 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Импрегнированный катод

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793726A (en) * 1954-12-06 1958-04-23 Philips Electrical Ind Ltd Improvements in or relating to dispenser cathodes
GB1131586A (en) * 1966-06-24 1968-10-23 Philips Electronic Associated Improvements relating to dispenser cathodes
GB1178045A (en) * 1966-07-01 1970-01-14 Philips Electronic Associated Improvements in or relating to methods of manufacturing Dispenser Cathodes
US4112327A (en) * 1976-10-18 1978-09-05 Hughes Aircraft Company Cathode structure and method
EP0012427A1 (de) * 1978-12-19 1980-06-25 International Standard Electric Corporation Kathodenbefestigung
GB2109157A (en) * 1981-10-29 1983-05-25 Varian Associates Electron tube and dispenser cathode with high emission impregnant
JPS62217527A (ja) * 1986-03-19 1987-09-25 Hitachi Ltd 含浸形カソード構体

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793726A (en) * 1954-12-06 1958-04-23 Philips Electrical Ind Ltd Improvements in or relating to dispenser cathodes
GB1131586A (en) * 1966-06-24 1968-10-23 Philips Electronic Associated Improvements relating to dispenser cathodes
GB1178045A (en) * 1966-07-01 1970-01-14 Philips Electronic Associated Improvements in or relating to methods of manufacturing Dispenser Cathodes
US4112327A (en) * 1976-10-18 1978-09-05 Hughes Aircraft Company Cathode structure and method
EP0012427A1 (de) * 1978-12-19 1980-06-25 International Standard Electric Corporation Kathodenbefestigung
GB2109157A (en) * 1981-10-29 1983-05-25 Varian Associates Electron tube and dispenser cathode with high emission impregnant
JPS62217527A (ja) * 1986-03-19 1987-09-25 Hitachi Ltd 含浸形カソード構体

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1111648A1 (en) * 1999-12-22 2001-06-27 THOMSON TUBES & DISPLAYS S.A. Process for assembling a cathode for a cathode ray tube
WO2001046978A1 (en) * 1999-12-22 2001-06-28 Thomson Tubes & Displays S.A. Process for assembling a cathode for a cathode-ray tube
FR2803088A1 (fr) * 1999-12-22 2001-06-29 Thomson Tubes & Displays Procede d'assemblage d'une cathode pour tube a rayons cathodiques
US6705915B2 (en) 1999-12-22 2004-03-16 Thomson Licensing S.A. Method of assembling an emissive cathode for electron gun
RU182187U1 (ru) * 2018-01-09 2018-08-07 Федеральное государственное бюджетное образовательное учреждение высшего образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Импрегнированный катод

Also Published As

Publication number Publication date
DE4228680A1 (de) 1993-07-01
GB9218295D0 (en) 1992-10-14
KR930014673A (ko) 1993-07-23
TW209907B (zh) 1993-07-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)