FR2184980A1 - - Google Patents

Info

Publication number
FR2184980A1
FR2184980A1 FR7317931A FR7317931A FR2184980A1 FR 2184980 A1 FR2184980 A1 FR 2184980A1 FR 7317931 A FR7317931 A FR 7317931A FR 7317931 A FR7317931 A FR 7317931A FR 2184980 A1 FR2184980 A1 FR 2184980A1
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
FR7317931A
Other languages
French (fr)
Other versions
FR2184980B1 (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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2184980A1 publication Critical patent/FR2184980A1/fr
Application granted granted Critical
Publication of FR2184980B1 publication Critical patent/FR2184980B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/08—Cathode arrangements
FR7317931A 1972-05-17 1973-05-17 Expired FR2184980B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25425972A 1972-05-17 1972-05-17

Publications (2)

Publication Number Publication Date
FR2184980A1 true FR2184980A1 (de) 1973-12-28
FR2184980B1 FR2184980B1 (de) 1977-12-30

Family

ID=22963565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7317931A Expired FR2184980B1 (de) 1972-05-17 1973-05-17

Country Status (7)

Country Link
US (1) US3777209A (de)
JP (1) JPS4950863A (de)
CA (1) CA998732A (de)
DE (1) DE2325136B2 (de)
FR (1) FR2184980B1 (de)
GB (1) GB1425194A (de)
NL (1) NL7306812A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930139A (en) * 1974-05-28 1975-12-30 David Grigorievich Bykhovsky Nonconsumable electrode for oxygen arc working
US6259193B1 (en) * 1998-06-08 2001-07-10 General Electric Company Emissive filament and support structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307974A (en) * 1962-03-19 1967-03-07 Rank Radio And Television Ltd Method of forming thermionic cathodes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066236A (en) * 1958-05-14 1962-11-27 Int Standard Electric Corp Electron discharge devices
US3330991A (en) * 1963-07-12 1967-07-11 Raytheon Co Non-thermionic electron emission devices
FR1432317A (fr) * 1964-05-05 1966-03-18 Philips Nv Procédé de fabrication d'une cathode à chauffage indirect et cathode obtenue par ce procédé
US3408521A (en) * 1965-11-22 1968-10-29 Stanford Research Inst Semiconductor-type photocathode for an infrared device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3307974A (en) * 1962-03-19 1967-03-07 Rank Radio And Television Ltd Method of forming thermionic cathodes

Also Published As

Publication number Publication date
US3777209A (en) 1973-12-04
JPS4950863A (de) 1974-05-17
DE2325136B2 (de) 1977-09-01
GB1425194A (en) 1976-02-18
DE2325136C3 (de) 1978-05-11
CA998732A (en) 1976-10-19
DE2325136A1 (de) 1973-11-29
FR2184980B1 (de) 1977-12-30
NL7306812A (de) 1973-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse