FR2177716B1 - - Google Patents

Info

Publication number
FR2177716B1
FR2177716B1 FR7246917A FR7246917A FR2177716B1 FR 2177716 B1 FR2177716 B1 FR 2177716B1 FR 7246917 A FR7246917 A FR 7246917A FR 7246917 A FR7246917 A FR 7246917A FR 2177716 B1 FR2177716 B1 FR 2177716B1
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
FR7246917A
Other versions
FR2177716A1 (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 AG
Original Assignee
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 AG filed Critical Siemens AG
Publication of FR2177716A1 publication Critical patent/FR2177716A1/fr
Application granted granted Critical
Publication of FR2177716B1 publication Critical patent/FR2177716B1/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
FR7246917A 1972-03-29 1972-12-29 Expired FR2177716B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2215477A DE2215477C3 (de) 1972-03-29 1972-03-29 Vorratskathode, insbesondere MK-Kathode

Publications (2)

Publication Number Publication Date
FR2177716A1 FR2177716A1 (fr) 1973-11-09
FR2177716B1 true FR2177716B1 (fr) 1976-08-27

Family

ID=5840592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7246917A Expired FR2177716B1 (fr) 1972-03-29 1972-12-29

Country Status (6)

Country Link
US (1) US3821589A (fr)
CA (1) CA1012600A (fr)
DE (1) DE2215477C3 (fr)
FR (1) FR2177716B1 (fr)
GB (1) GB1404473A (fr)
IT (1) IT981639B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
JPS6036056B2 (ja) * 1979-06-21 1985-08-17 株式会社東芝 陰極構体
DE3627384A1 (de) * 1986-08-12 1988-02-18 Siemens Ag Indirekt geheizte vorratskathode, insbesondere metall-kapillar-kathode, fuer elektrische entladungsgefaesse
FR2621735A1 (fr) * 1987-10-09 1989-04-14 Thomson Csf Cathode a oxydes robuste pour tube a rayons cathodiques
GB2214704B (en) * 1988-01-20 1992-05-06 English Electric Valve Co Ltd Magnetrons
US6570339B1 (en) 2001-12-19 2003-05-27 Chad Byron Moore Color fiber-based plasma display

Also Published As

Publication number Publication date
CA1012600A (en) 1977-06-21
IT981639B (it) 1974-10-10
DE2215477C3 (de) 1975-04-10
DE2215477A1 (de) 1973-10-11
US3821589A (en) 1974-06-28
GB1404473A (en) 1975-08-28
FR2177716A1 (fr) 1973-11-09
DE2215477B2 (de) 1974-08-08

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Legal Events

Date Code Title Description
ST Notification of lapse