NL167796C - METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE - Google Patents

METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE

Info

Publication number
NL167796C
NL167796C NL7207275A NL7207275A NL167796C NL 167796 C NL167796 C NL 167796C NL 7207275 A NL7207275 A NL 7207275A NL 7207275 A NL7207275 A NL 7207275A NL 167796 C NL167796 C NL 167796C
Authority
NL
Netherlands
Prior art keywords
cathod
activated
manufacturing
discharge tube
electric discharge
Prior art date
Application number
NL7207275A
Other languages
Dutch (nl)
Other versions
NL7207275A (en
NL167796B (en
Inventor
Antonius Johannes Albe Stratum
Niranjan Kumar Ir Mitra
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL7207275A priority Critical patent/NL167796C/en
Priority to US00356620A priority patent/US3833494A/en
Priority to DE2325273A priority patent/DE2325273C3/en
Priority to CA172,130A priority patent/CA994280A/en
Priority to GB2515673A priority patent/GB1378620A/en
Priority to CH755173A priority patent/CH574677A5/xx
Priority to SE7307402A priority patent/SE382886B/en
Priority to JP5825873A priority patent/JPS5524224B2/ja
Priority to FR7319645A priority patent/FR2186725B1/fr
Publication of NL7207275A publication Critical patent/NL7207275A/xx
Publication of NL167796B publication Critical patent/NL167796B/en
Application granted granted Critical
Publication of NL167796C publication Critical patent/NL167796C/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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
NL7207275A 1972-05-30 1972-05-30 METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE NL167796C (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL7207275A NL167796C (en) 1972-05-30 1972-05-30 METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE
US00356620A US3833494A (en) 1972-05-30 1973-05-02 Method of manufacturing a lanthanum hexaboride-activated cathode for an electric discharge tube
DE2325273A DE2325273C3 (en) 1972-05-30 1973-05-18 Process for the production of a cathode activated with lanthanum hexaboride for an electric discharge tube
CA172,130A CA994280A (en) 1972-05-30 1973-05-24 Preparing a lanthanum hexaboride activated cathode for an electric discharge tube
GB2515673A GB1378620A (en) 1972-05-30 1973-05-25 Thermionic cathode including lanthanum hexaboride
CH755173A CH574677A5 (en) 1972-05-30 1973-05-25
SE7307402A SE382886B (en) 1972-05-30 1973-05-25 KIT PRODUCTION KIT FOR AN ELECTRIC URL CHARGE RUBER
JP5825873A JPS5524224B2 (en) 1972-05-30 1973-05-26
FR7319645A FR2186725B1 (en) 1972-05-30 1973-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7207275A NL167796C (en) 1972-05-30 1972-05-30 METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE

Publications (3)

Publication Number Publication Date
NL7207275A NL7207275A (en) 1973-12-04
NL167796B NL167796B (en) 1981-08-17
NL167796C true NL167796C (en) 1982-01-18

Family

ID=19816153

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7207275A NL167796C (en) 1972-05-30 1972-05-30 METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE

Country Status (9)

Country Link
US (1) US3833494A (en)
JP (1) JPS5524224B2 (en)
CA (1) CA994280A (en)
CH (1) CH574677A5 (en)
DE (1) DE2325273C3 (en)
FR (1) FR2186725B1 (en)
GB (1) GB1378620A (en)
NL (1) NL167796C (en)
SE (1) SE382886B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128475A (en) * 1974-09-04 1976-03-10 Hitachi Ltd MAGUNETORONINKYOKUKOTAI
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
JPS6040133B2 (en) * 1975-04-10 1985-09-09 科学技術庁無機材質研究所長 Manufacturing method of cathode for thermionic emission
US4055780A (en) * 1975-04-10 1977-10-25 National Institute For Researches In Inorganic Materials Thermionic emission cathode having a tip of a single crystal of lanthanum hexaboride
JPS5231652A (en) * 1975-09-04 1977-03-10 Natl Inst For Res In Inorg Mater Electron microscope
JPS5231651A (en) * 1975-09-04 1977-03-10 Natl Inst For Res In Inorg Mater Scan-type electron microscope
US4054946A (en) * 1976-09-28 1977-10-18 Bell Telephone Laboratories, Incorporated Electron source of a single crystal of lanthanum hexaboride emitting surface of (110) crystal plane
JPS57196443A (en) * 1981-05-29 1982-12-02 Denki Kagaku Kogyo Kk Manufacture of hot cathode
GB2117795A (en) * 1982-04-06 1983-10-19 Standard Telephones Cables Ltd Fabricating capacitors; forming ceramic films
GB8611967D0 (en) * 1986-05-16 1986-10-29 English Electric Valve Co Ltd Directly heated cathodes
JPS6489242A (en) * 1987-09-30 1989-04-03 Mitsubishi Electric Corp Electrode for discharge light source
DE4026299A1 (en) * 1990-08-20 1992-02-27 Siemens Ag X-RAY ARRANGEMENT WITH AN X-RAY EMITTER
DE4026298A1 (en) * 1990-08-20 1992-02-27 Siemens Ag Long life X=ray tube - has electron emitter based on rare earth material alloy
DE4026300A1 (en) * 1990-08-20 1992-02-27 Siemens Ag Electron emitter for X=ray tube - is of material contg. rare earth element covering support layer of large flat surface withstanding vibration
DE4026297A1 (en) * 1990-08-20 1992-02-27 Siemens Ag X=ray tube system - has heater for cathode contg. lanthanum material as electron emitter
DE4026301A1 (en) * 1990-08-20 1992-02-27 Siemens Ag ELECTRON EMITTER OF A X-RAY TUBE
DE10245392B3 (en) * 2002-09-28 2004-01-08 Vtd Vakuumtechnik Dresden Gmbh Tubular hollow cathode for high electrical outputs
JP4951477B2 (en) * 2006-12-04 2012-06-13 電気化学工業株式会社 Electron emission source
EP1983546A1 (en) * 2007-04-20 2008-10-22 PANalytical B.V. X-ray cathode and tube
WO2014007121A1 (en) * 2012-07-03 2014-01-09 独立行政法人物質・材料研究機構 Hexaboride metal cold field emitter, method of manufacturing same, and electron gun
CN104223613B (en) 2014-09-26 2016-09-28 京东方科技集团股份有限公司 Intelligent bracelet display control program and Intelligent bracelet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312856A (en) * 1963-03-26 1967-04-04 Gen Electric Rhenium supported metallic boride cathode emitters
US3498897A (en) * 1967-07-25 1970-03-03 Ford Motor Co Method for manufacturing multilayered product
US3630770A (en) * 1969-04-30 1971-12-28 Gen Electric Method for fabricating lanthanum boride cathodes

Also Published As

Publication number Publication date
JPS5524224B2 (en) 1980-06-27
FR2186725B1 (en) 1976-09-17
NL7207275A (en) 1973-12-04
CH574677A5 (en) 1976-04-15
SE382886B (en) 1976-02-16
US3833494A (en) 1974-09-03
DE2325273A1 (en) 1973-12-13
JPS4944661A (en) 1974-04-26
CA994280A (en) 1976-08-03
NL167796B (en) 1981-08-17
DE2325273B2 (en) 1980-09-04
DE2325273C3 (en) 1981-07-09
GB1378620A (en) 1974-12-27
FR2186725A1 (en) 1974-01-11

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee