JPS52128047A - Field emission type electron gun device - Google Patents

Field emission type electron gun device

Info

Publication number
JPS52128047A
JPS52128047A JP4447476A JP4447476A JPS52128047A JP S52128047 A JPS52128047 A JP S52128047A JP 4447476 A JP4447476 A JP 4447476A JP 4447476 A JP4447476 A JP 4447476A JP S52128047 A JPS52128047 A JP S52128047A
Authority
JP
Japan
Prior art keywords
electron gun
field emission
emission type
type electron
gun device
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.)
Pending
Application number
JP4447476A
Other languages
Japanese (ja)
Inventor
Akimitsu Okura
Naotake Saito
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4447476A priority Critical patent/JPS52128047A/en
Publication of JPS52128047A publication Critical patent/JPS52128047A/en
Pending legal-status Critical Current

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  • Electron Sources, Ion Sources (AREA)

Abstract

PURPOSE: To provide an electron gun in which field emission current is taken out safely, flushing operation is automatically performed and clip noise is reduced without making the structure of an electron gun complicate.
COPYRIGHT: (C)1977,JPO&Japio
JP4447476A 1976-04-21 1976-04-21 Field emission type electron gun device Pending JPS52128047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4447476A JPS52128047A (en) 1976-04-21 1976-04-21 Field emission type electron gun device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4447476A JPS52128047A (en) 1976-04-21 1976-04-21 Field emission type electron gun device

Publications (1)

Publication Number Publication Date
JPS52128047A true JPS52128047A (en) 1977-10-27

Family

ID=12692512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4447476A Pending JPS52128047A (en) 1976-04-21 1976-04-21 Field emission type electron gun device

Country Status (1)

Country Link
JP (1) JPS52128047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60225345A (en) * 1984-04-20 1985-11-09 Hitachi Ltd Power supply for electric field emitting cathode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60225345A (en) * 1984-04-20 1985-11-09 Hitachi Ltd Power supply for electric field emitting cathode
JPH0564414B2 (en) * 1984-04-20 1993-09-14 Hitachi Ltd

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