FR2224868A1 - - Google Patents

Info

Publication number
FR2224868A1
FR2224868A1 FR7411219A FR7411219A FR2224868A1 FR 2224868 A1 FR2224868 A1 FR 2224868A1 FR 7411219 A FR7411219 A FR 7411219A FR 7411219 A FR7411219 A FR 7411219A FR 2224868 A1 FR2224868 A1 FR 2224868A1
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.)
Granted
Application number
FR7411219A
Other languages
French (fr)
Other versions
FR2224868B1 (de
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of FR2224868A1 publication Critical patent/FR2224868A1/fr
Application granted granted Critical
Publication of FR2224868B1 publication Critical patent/FR2224868B1/fr
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
FR7411219A 1973-04-09 1974-03-29 Expired FR2224868B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00349156A US3814974A (en) 1973-04-09 1973-04-09 Cathode gun device

Publications (2)

Publication Number Publication Date
FR2224868A1 true FR2224868A1 (de) 1974-10-31
FR2224868B1 FR2224868B1 (de) 1977-09-30

Family

ID=23371139

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411219A Expired FR2224868B1 (de) 1973-04-09 1974-03-29

Country Status (6)

Country Link
US (1) US3814974A (de)
JP (1) JPS503568A (de)
DE (1) DE2415152B2 (de)
FR (1) FR2224868B1 (de)
GB (1) GB1424167A (de)
NL (1) NL163665C (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112166A (en) * 1975-03-27 1976-10-04 Matsushita Electric Ind Co Ltd Impregnated cathode
JPS5458344A (en) * 1977-10-19 1979-05-11 Hitachi Ltd Thermal electron radiation cathode
JPS5574032A (en) * 1978-11-29 1980-06-04 Nec Corp Indirectly-heated cathode
GB2176337B (en) * 1985-06-04 1990-02-14 English Electric Valve Co Ltd Metal vapour laser apparatus
US5202910A (en) * 1990-08-28 1993-04-13 North American Philips Corporation Anode for arc discharge devices
US10825634B2 (en) * 2019-02-21 2020-11-03 Varex Imaging Corporation X-ray tube emitter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899591A (en) * 1959-08-11 Electrical heating device
US2391927A (en) * 1944-01-08 1946-01-01 Standard Telephones Cables Ltd Electron discharge device
US2518879A (en) * 1945-02-03 1950-08-15 Kenneth J Germeshausen Hydrogen thyratron
US2577239A (en) * 1949-09-12 1951-12-04 Eitel Mccullough Inc Cathode and heater structure for electron tubes
US2888592A (en) * 1954-07-22 1959-05-26 Gen Electric Cathode structure
US3204140A (en) * 1961-07-10 1965-08-31 Gen Electric Hot cathode electron tube

Also Published As

Publication number Publication date
GB1424167A (en) 1976-02-11
DE2415152A1 (de) 1974-11-21
FR2224868B1 (de) 1977-09-30
NL163665C (nl) 1980-09-15
JPS503568A (de) 1975-01-14
US3814974A (en) 1974-06-04
NL7404189A (de) 1974-10-11
NL163665B (nl) 1980-04-15
DE2415152B2 (de) 1975-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse