FR2186725B1 - - Google Patents

Info

Publication number
FR2186725B1
FR2186725B1 FR7319645A FR7319645A FR2186725B1 FR 2186725 B1 FR2186725 B1 FR 2186725B1 FR 7319645 A FR7319645 A FR 7319645A FR 7319645 A FR7319645 A FR 7319645A FR 2186725 B1 FR2186725 B1 FR 2186725B1
Authority
FR
France
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.)
Expired
Application number
FR7319645A
Other languages
French (fr)
Other versions
FR2186725A1 (ja
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke 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
Priority to NL7207275A priority Critical patent/NL167796C/xx
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of FR2186725A1 publication Critical patent/FR2186725A1/fr
Application granted granted Critical
Publication of FR2186725B1 publication Critical patent/FR2186725B1/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/04Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042Manufacture, activation of the emissive part
FR7319645A 1972-05-30 1973-05-30 Expired FR2186725B1 (ja)

Priority Applications (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 (2)

Publication Number Publication Date
FR2186725A1 FR2186725A1 (ja) 1974-01-11
FR2186725B1 true FR2186725B1 (ja) 1976-09-17

Family

ID=19816153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7319645A Expired FR2186725B1 (ja) 1972-05-30 1973-05-30

Country Status (9)

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

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
JPS5128475A (ja) * 1974-09-04 1976-03-10 Hitachi Ltd Magunetoroninkyokukotai
JPS6040133B2 (ja) * 1975-04-10 1985-09-09 Kagaku Gijutsucho Mukizaishitsu Kenkyushocho
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
JPS5231651A (en) * 1975-09-04 1977-03-10 Natl Inst For Res In Inorg Mater Scan-type electron microscope
JPS5231652A (en) * 1975-09-04 1977-03-10 Natl Inst For Res In Inorg Mater 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
JPH0146976B2 (ja) * 1981-05-29 1989-10-12 Denki Kagaku Kogyo Kk
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
DE4026300A1 (de) * 1990-08-20 1992-02-27 Siemens Ag ELECTRON EMITTER OF A X-RAY TUBE
DE4026299A1 (de) * 1990-08-20 1992-02-27 Siemens Ag X-RAY ARRANGEMENT WITH AN X-RAY EMITTER
DE4026297A1 (de) * 1990-08-20 1992-02-27 Siemens Ag X-RAY ARRANGEMENT
DE4026301A1 (de) * 1990-08-20 1992-02-27 Siemens Ag ELECTRON EMITTER OF A X-RAY TUBE
DE4026298A1 (de) * 1990-08-20 1992-02-27 Siemens Ag X-RAY TUBES WITH AN ELECTRON EMITTER
DE10245392B3 (de) * 2002-09-28 2004-01-08 Vtd Vakuumtechnik Dresden Gmbh Rohrförmige Hohlkathode für hohe elektrische Leistungen
JP4951477B2 (ja) * 2006-12-04 2012-06-13 電気化学工業株式会社 電子放出源
EP1983546A1 (en) * 2007-04-20 2008-10-22 PANalytical B.V. X-ray cathode and tube
WO2014007121A1 (ja) * 2012-07-03 2014-01-09 独立行政法人物質・材料研究機構 六ホウ化金属冷電界エミッター、その製造方法及び電子銃
CN104223613B (zh) 2014-09-26 2016-09-28 京东方科技集团股份有限公司 智能手环显示控制系统及智能手环

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
DE2325273A1 (de) 1973-12-13
GB1378620A (en) 1974-12-27
NL7207275A (ja) 1973-12-04
NL167796B (en) 1981-08-17
FR2186725A1 (ja) 1974-01-11
US3833494A (en) 1974-09-03
DE2325273C3 (ja) 1981-07-09
NL167796C (en) 1982-01-18
CH574677A5 (ja) 1976-04-15
CA994280A (en) 1976-08-03
JPS5524224B2 (ja) 1980-06-27
CA994280A1 (ja)
SE382886B (sv) 1976-02-16
JPS4944661A (ja) 1974-04-26
DE2325273B2 (ja) 1980-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse