EP0068111A3 - Cathode structure and method of making the same - Google Patents

Cathode structure and method of making the same Download PDF

Info

Publication number
EP0068111A3
EP0068111A3 EP82103884A EP82103884A EP0068111A3 EP 0068111 A3 EP0068111 A3 EP 0068111A3 EP 82103884 A EP82103884 A EP 82103884A EP 82103884 A EP82103884 A EP 82103884A EP 0068111 A3 EP0068111 A3 EP 0068111A3
Authority
EP
European Patent Office
Prior art keywords
making
same
cathode structure
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.)
Granted
Application number
EP82103884A
Other versions
EP0068111A2 (en
EP0068111B1 (en
Inventor
Bruce Paul Piggin
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0068111A2 publication Critical patent/EP0068111A2/en
Publication of EP0068111A3 publication Critical patent/EP0068111A3/en
Application granted granted Critical
Publication of EP0068111B1 publication Critical patent/EP0068111B1/en
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
    • 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
EP82103884A 1981-06-30 1982-05-05 Method of forming a cathode structure Expired EP0068111B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27928181A 1981-06-30 1981-06-30
US279281 1981-06-30

Publications (3)

Publication Number Publication Date
EP0068111A2 EP0068111A2 (en) 1983-01-05
EP0068111A3 true EP0068111A3 (en) 1983-05-11
EP0068111B1 EP0068111B1 (en) 1985-11-21

Family

ID=23068326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103884A Expired EP0068111B1 (en) 1981-06-30 1982-05-05 Method of forming a cathode structure

Country Status (6)

Country Link
EP (1) EP0068111B1 (en)
JP (1) JPS587740A (en)
BR (1) BR8203186A (en)
DE (1) DE3267536D1 (en)
ES (2) ES513515A0 (en)
ZA (1) ZA823101B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224847A (en) * 1983-12-21 1985-11-09 東洋紡績株式会社 Elastic warp knitted fabric and its production
JPS6143288U (en) * 1984-08-25 1986-03-20 マツモト・テキスタイル株式会社 Stretchable warp knitted fabric
JPS61119757A (en) * 1984-11-16 1986-06-06 東洋紡績株式会社 Elastic knitted cloth
JPH0257988U (en) * 1988-10-24 1990-04-26
JP3556331B2 (en) * 1995-07-17 2004-08-18 株式会社日立製作所 Manufacturing method of electron source
US11205564B2 (en) 2017-05-23 2021-12-21 Modern Electron, Inc. Electrostatic grid device to reduce electron space charge
US11626273B2 (en) 2019-04-05 2023-04-11 Modern Electron, Inc. Thermionic energy converter with thermal concentrating hot shell

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978364A (en) * 1974-07-24 1976-08-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Integrated structure vacuum tube
US4069436A (en) * 1975-06-11 1978-01-17 Sony Corporation Flat thermionic cathode
DE2156360B2 (en) * 1971-11-12 1978-04-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Brush cathode prodn. using etching of suitable material - involves homogeneous cathode whose surface is coated by photolacquer in pattern corresponding to brush needles required
US4121130A (en) * 1976-10-29 1978-10-17 Rca Corporation Cathode structure and method of operating the same
DE2536363B2 (en) * 1974-08-16 1978-11-09 Hitachi, Ltd., Tokio Thin film field electron emission source and method for its manufacture
US4138622A (en) * 1977-08-04 1979-02-06 The United States Of America As Represented By The United States Department Of Energy High temperature electronic gain device
EP0039877A1 (en) * 1980-05-12 1981-11-18 International Business Machines Corporation A multiple electron beam cathode ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457105A (en) * 1973-06-01 1976-12-01 English Electric Valve Co Ltd Electron guns
JPS6055942B2 (en) * 1975-08-25 1985-12-07 ソニー株式会社 Cathode manufacturing method
NL7810808A (en) * 1978-10-31 1980-05-02 Philips Nv DEVICE AND METHOD FOR MANUFACTURING CATHODS
GB2100502B (en) * 1978-11-30 1983-08-03 Varian Associates Dispenser cathodes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156360B2 (en) * 1971-11-12 1978-04-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Brush cathode prodn. using etching of suitable material - involves homogeneous cathode whose surface is coated by photolacquer in pattern corresponding to brush needles required
US3978364A (en) * 1974-07-24 1976-08-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Integrated structure vacuum tube
DE2536363B2 (en) * 1974-08-16 1978-11-09 Hitachi, Ltd., Tokio Thin film field electron emission source and method for its manufacture
US4069436A (en) * 1975-06-11 1978-01-17 Sony Corporation Flat thermionic cathode
US4121130A (en) * 1976-10-29 1978-10-17 Rca Corporation Cathode structure and method of operating the same
US4138622A (en) * 1977-08-04 1979-02-06 The United States Of America As Represented By The United States Department Of Energy High temperature electronic gain device
EP0039877A1 (en) * 1980-05-12 1981-11-18 International Business Machines Corporation A multiple electron beam cathode ray tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WALTER H. KOHL, "Handbook of Materials and Techniques for vacuum devices", chapter 16, 1967 REINHOLD PUBLISHING CORPORATION, "Cathodes and Heaters", New York pages 514-521 *

Also Published As

Publication number Publication date
ES8308153A1 (en) 1983-08-01
JPH0363169B2 (en) 1991-09-30
EP0068111A2 (en) 1983-01-05
EP0068111B1 (en) 1985-11-21
DE3267536D1 (en) 1986-01-02
BR8203186A (en) 1983-05-17
ES518317A0 (en) 1984-01-16
ZA823101B (en) 1983-03-30
JPS587740A (en) 1983-01-17
ES8402459A1 (en) 1984-01-16
ES513515A0 (en) 1983-08-01

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