FR1124860A - Indirectly heated cathode for electric discharge tube - Google Patents

Indirectly heated cathode for electric discharge tube

Info

Publication number
FR1124860A
FR1124860A FR1124860DA FR1124860A FR 1124860 A FR1124860 A FR 1124860A FR 1124860D A FR1124860D A FR 1124860DA FR 1124860 A FR1124860 A FR 1124860A
Authority
FR
France
Prior art keywords
discharge tube
electric discharge
indirectly heated
heated cathode
cathode
Prior art date
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
Other languages
French (fr)
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1124860A publication Critical patent/FR1124860A/en
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
FR1124860D 1954-06-29 1955-05-20 Indirectly heated cathode for electric discharge tube Expired FR1124860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1124860X 1954-06-29

Publications (1)

Publication Number Publication Date
FR1124860A true FR1124860A (en) 1956-10-19

Family

ID=7724980

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1124860D Expired FR1124860A (en) 1954-06-29 1955-05-20 Indirectly heated cathode for electric discharge tube
FR69716D Expired FR69716E (en) 1954-06-29 1956-04-30 Indirectly heated cathode for electric discharge tube

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR69716D Expired FR69716E (en) 1954-06-29 1956-04-30 Indirectly heated cathode for electric discharge tube

Country Status (2)

Country Link
FR (2) FR1124860A (en)
NL (2) NL208455A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052047A1 (en) * 1980-11-07 1982-05-19 Thomson-Csf Thermoelectronic cathode
EP0915492A1 (en) * 1997-11-04 1999-05-12 Sony Corporation Impregnated cathode and method of manufacturing the same, electron gun and electron tube
EP1193733A1 (en) * 2000-09-28 2002-04-03 Ushiodenki Kabushiki Kaisha Short arc discharge lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1614566B1 (en) * 1967-07-17 1970-11-05 Siemens Ag Indirectly heated supply cathode, especially MK cathode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052047A1 (en) * 1980-11-07 1982-05-19 Thomson-Csf Thermoelectronic cathode
EP0915492A1 (en) * 1997-11-04 1999-05-12 Sony Corporation Impregnated cathode and method of manufacturing the same, electron gun and electron tube
EP1193733A1 (en) * 2000-09-28 2002-04-03 Ushiodenki Kabushiki Kaisha Short arc discharge lamp
US6844678B2 (en) 2000-09-28 2005-01-18 Ushiodenki Kabushiki Kaisha Short arc discharge lamp

Also Published As

Publication number Publication date
NL198428A (en)
FR69716E (en) 1958-11-19
NL208455A (en)

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