EP0082965A3 - Method of forming thermionic cathodes - Google Patents

Method of forming thermionic cathodes Download PDF

Info

Publication number
EP0082965A3
EP0082965A3 EP82111027A EP82111027A EP0082965A3 EP 0082965 A3 EP0082965 A3 EP 0082965A3 EP 82111027 A EP82111027 A EP 82111027A EP 82111027 A EP82111027 A EP 82111027A EP 0082965 A3 EP0082965 A3 EP 0082965A3
Authority
EP
European Patent Office
Prior art keywords
forming
thermionic cathodes
thermionic
cathodes
forming thermionic
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.)
Granted
Application number
EP82111027A
Other languages
English (en)
Other versions
EP0082965A2 (de
EP0082965B1 (de
Inventor
Eberhard Weiss
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.)
Panasonic Holdings Corp
Original Assignee
Standard Elektrik Lorenz AG
International Standard Electric 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 Standard Elektrik Lorenz AG, International Standard Electric Corp filed Critical Standard Elektrik Lorenz AG
Publication of EP0082965A2 publication Critical patent/EP0082965A2/de
Publication of EP0082965A3 publication Critical patent/EP0082965A3/de
Application granted granted Critical
Publication of EP0082965B1 publication Critical patent/EP0082965B1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/045—Activation of assembled cathode

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Solid Thermionic Cathode (AREA)
EP82111027A 1981-12-24 1982-11-29 Verfahren zum Formieren von Glühkathoden Expired EP0082965B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3151347 1981-12-24
DE3151347A DE3151347C1 (de) 1981-12-24 1981-12-24 Verfahren zum Formieren von Gluehkathoden

Publications (3)

Publication Number Publication Date
EP0082965A2 EP0082965A2 (de) 1983-07-06
EP0082965A3 true EP0082965A3 (en) 1984-09-05
EP0082965B1 EP0082965B1 (de) 1987-03-18

Family

ID=6149702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111027A Expired EP0082965B1 (de) 1981-12-24 1982-11-29 Verfahren zum Formieren von Glühkathoden

Country Status (5)

Country Link
US (1) US4511340A (de)
EP (1) EP0082965B1 (de)
JP (1) JPS58145039A (de)
CA (1) CA1212714A (de)
DE (2) DE3151347C1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047337A (ja) * 1983-08-26 1985-03-14 Toshiba Corp カラ−陰極線管のカソ−ドエ−ジング方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD16221A (de) *
GB675470A (en) * 1942-04-14 1952-07-09 Radio Patents Corp Ageing electron discharge tubes having space charge grids
GB806032A (en) * 1954-09-08 1958-12-17 Patelhold Patentverwertung A process for the production of a hot cathode for thermionic tubes
DE1205628B (de) * 1964-07-03 1965-11-25 Standard Elektrik Lorenz Ag Verfahren zum Formieren von Gluehkathoden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357766A (en) * 1966-08-17 1967-12-12 Nat Video Corp Method of controlling cathode formation in tv tube gun
US3441333A (en) * 1967-09-26 1969-04-29 Nat Video Corp Method of manufacturing cathode ray tube
US4125306A (en) * 1977-11-17 1978-11-14 Rca Corporation Spiked low-voltage aging of cathode-ray tubes
US4326762A (en) * 1979-04-30 1982-04-27 Zenith Radio Corporation Apparatus and method for spot-knocking television picture tube electron guns

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD16221A (de) *
GB675470A (en) * 1942-04-14 1952-07-09 Radio Patents Corp Ageing electron discharge tubes having space charge grids
GB806032A (en) * 1954-09-08 1958-12-17 Patelhold Patentverwertung A process for the production of a hot cathode for thermionic tubes
DE1205628B (de) * 1964-07-03 1965-11-25 Standard Elektrik Lorenz Ag Verfahren zum Formieren von Gluehkathoden

Also Published As

Publication number Publication date
CA1212714A (en) 1986-10-14
DE3275785D1 (en) 1987-04-23
US4511340A (en) 1985-04-16
DE3151347C1 (de) 1983-05-05
JPS58145039A (ja) 1983-08-29
EP0082965A2 (de) 1983-07-06
EP0082965B1 (de) 1987-03-18

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