JPH0429173B2 - - Google Patents

Info

Publication number
JPH0429173B2
JPH0429173B2 JP57121647A JP12164782A JPH0429173B2 JP H0429173 B2 JPH0429173 B2 JP H0429173B2 JP 57121647 A JP57121647 A JP 57121647A JP 12164782 A JP12164782 A JP 12164782A JP H0429173 B2 JPH0429173 B2 JP H0429173B2
Authority
JP
Japan
Prior art keywords
cathode
cathodes
ridges
truncated
shaped
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 - Lifetime
Application number
JP57121647A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5912534A (ja
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 filed Critical
Priority to JP57121647A priority Critical patent/JPS5912534A/ja
Publication of JPS5912534A publication Critical patent/JPS5912534A/ja
Publication of JPH0429173B2 publication Critical patent/JPH0429173B2/ja
Granted 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Solid Thermionic Cathode (AREA)
JP57121647A 1982-07-13 1982-07-13 熱電子放出陰極 Granted JPS5912534A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57121647A JPS5912534A (ja) 1982-07-13 1982-07-13 熱電子放出陰極

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57121647A JPS5912534A (ja) 1982-07-13 1982-07-13 熱電子放出陰極

Publications (2)

Publication Number Publication Date
JPS5912534A JPS5912534A (ja) 1984-01-23
JPH0429173B2 true JPH0429173B2 (enrdf_load_stackoverflow) 1992-05-18

Family

ID=14816427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57121647A Granted JPS5912534A (ja) 1982-07-13 1982-07-13 熱電子放出陰極

Country Status (1)

Country Link
JP (1) JPS5912534A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008120341A1 (ja) 2007-03-29 2008-10-09 Advantest Corporation 電子銃及び電子ビーム露光装置
JP4975095B2 (ja) * 2007-03-29 2012-07-11 株式会社アドバンテスト 電子銃及び電子ビーム露光装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5682539A (en) * 1979-12-07 1981-07-06 Toshiba Corp Electron gun

Also Published As

Publication number Publication date
JPS5912534A (ja) 1984-01-23

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