FR2056453A5 - - Google Patents

Info

Publication number
FR2056453A5
FR2056453A5 FR7024291A FR7024291A FR2056453A5 FR 2056453 A5 FR2056453 A5 FR 2056453A5 FR 7024291 A FR7024291 A FR 7024291A FR 7024291 A FR7024291 A FR 7024291A FR 2056453 A5 FR2056453 A5 FR 2056453A5
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
FR7024291A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Application granted granted Critical
Publication of FR2056453A5 publication Critical patent/FR2056453A5/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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • 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
    • H01J1/24—Insulating layer or body located between heater and emissive material
FR7024291A 1969-07-01 1970-06-30 Expired FR2056453A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691933309 DE1933309B2 (de) 1969-07-01 1969-07-01 Indirekt geheizte gluehkathode

Publications (1)

Publication Number Publication Date
FR2056453A5 true FR2056453A5 (fr) 1971-05-14

Family

ID=5738522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7024291A Expired FR2056453A5 (fr) 1969-07-01 1970-06-30

Country Status (4)

Country Link
US (1) US3652894A (fr)
DE (1) DE1933309B2 (fr)
FR (1) FR2056453A5 (fr)
GB (1) GB1263019A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5752100A (en) * 1996-01-26 1998-05-12 Eastman Kodak Company Driver circuit for a camera autofocus laser diode with provision for fault protection
JP2004221010A (ja) * 2003-01-17 2004-08-05 Matsushita Electric Ind Co Ltd 陰極構体、電子銃、および陰極線管
US20080196450A1 (en) * 2007-02-21 2008-08-21 Nippon Telegraph And Telephone Corporation Coated optical fiber endface preparation method and tool
WO2008157413A1 (fr) * 2007-06-13 2008-12-24 Aerojet- General Corporation Filament

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878089A (en) * 1926-06-19 1932-09-20 Rca Corp Electron emitting device
US2227017A (en) * 1936-03-12 1940-12-31 Loewe Radio Inc Hot cathode for cathode ray tubes
US2817784A (en) * 1951-01-31 1957-12-24 Siemens Ag Cathode for use in electrical discharge devices
NL84125C (fr) * 1951-10-13
DE1090774B (de) * 1959-03-20 1960-10-13 Siemens Ag Heizelement fuer mittelbar geheizte Kathoden und Verfahren zur Herstellung eines Isolierueberzuges
US3160780A (en) * 1961-01-17 1964-12-08 Philips Corp Indirectly heated cathode

Also Published As

Publication number Publication date
GB1263019A (en) 1972-02-09
DE1933309A1 (de) 1971-02-04
DE1933309B2 (de) 1971-05-06
US3652894A (en) 1972-03-28

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Legal Events

Date Code Title Description
ST Notification of lapse