JPS5260059A - Field discharge type electronic gun - Google Patents

Field discharge type electronic gun

Info

Publication number
JPS5260059A
JPS5260059A JP13600075A JP13600075A JPS5260059A JP S5260059 A JPS5260059 A JP S5260059A JP 13600075 A JP13600075 A JP 13600075A JP 13600075 A JP13600075 A JP 13600075A JP S5260059 A JPS5260059 A JP S5260059A
Authority
JP
Japan
Prior art keywords
type electronic
discharge type
field discharge
electronic gun
emitter
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
JP13600075A
Other languages
Japanese (ja)
Other versions
JPS5829570B2 (en
Inventor
Ryuzo Aihara
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.)
Jeol Ltd
Original Assignee
Jeol Ltd
Nihon Denshi KK
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 Jeol Ltd, Nihon Denshi KK filed Critical Jeol Ltd
Priority to JP50136000A priority Critical patent/JPS5829570B2/en
Publication of JPS5260059A publication Critical patent/JPS5260059A/en
Publication of JPS5829570B2 publication Critical patent/JPS5829570B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: Plural units of the combinations of constant current voltage diode and constant current diode which is connected in parallel between emitter and 1st anode are inserted in series. Thus, the breakage of emitter is prevented prior to arc discharge occurrence.
COPYRIGHT: (C)1977,JPO&Japio
JP50136000A 1975-11-12 1975-11-12 Denkai Houshiyutsugata Denshijiyu Expired JPS5829570B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50136000A JPS5829570B2 (en) 1975-11-12 1975-11-12 Denkai Houshiyutsugata Denshijiyu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50136000A JPS5829570B2 (en) 1975-11-12 1975-11-12 Denkai Houshiyutsugata Denshijiyu

Publications (2)

Publication Number Publication Date
JPS5260059A true JPS5260059A (en) 1977-05-18
JPS5829570B2 JPS5829570B2 (en) 1983-06-23

Family

ID=15164838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50136000A Expired JPS5829570B2 (en) 1975-11-12 1975-11-12 Denkai Houshiyutsugata Denshijiyu

Country Status (1)

Country Link
JP (1) JPS5829570B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397273A (en) * 1993-02-03 1995-03-14 Shimano Inc. Rear derailleur for a bicycle
US5421786A (en) * 1993-02-03 1995-06-06 Shimano Inc. Rear derailleur bracket
JP2010192808A (en) * 2009-02-20 2010-09-02 Nuflare Technology Inc Electron beam drawing device, and device and method for controlling power for heating cathode of electron gun of the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0162148U (en) * 1987-10-15 1989-04-20

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5397273A (en) * 1993-02-03 1995-03-14 Shimano Inc. Rear derailleur for a bicycle
US5421786A (en) * 1993-02-03 1995-06-06 Shimano Inc. Rear derailleur bracket
JP2010192808A (en) * 2009-02-20 2010-09-02 Nuflare Technology Inc Electron beam drawing device, and device and method for controlling power for heating cathode of electron gun of the same

Also Published As

Publication number Publication date
JPS5829570B2 (en) 1983-06-23

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