JPS5222469A - Field radiation type electron gun - Google Patents

Field radiation type electron gun

Info

Publication number
JPS5222469A
JPS5222469A JP9765675A JP9765675A JPS5222469A JP S5222469 A JPS5222469 A JP S5222469A JP 9765675 A JP9765675 A JP 9765675A JP 9765675 A JP9765675 A JP 9765675A JP S5222469 A JPS5222469 A JP S5222469A
Authority
JP
Japan
Prior art keywords
electron gun
type electron
field radiation
radiation type
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.)
Pending
Application number
JP9765675A
Other languages
Japanese (ja)
Inventor
Hideo Todokoro
Tsutomu Komoda
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 JP9765675A priority Critical patent/JPS5222469A/en
Priority to US05/614,311 priority patent/US4041316A/en
Priority to GB38567/75A priority patent/GB1518705A/en
Priority to DE2541899A priority patent/DE2541899C3/en
Publication of JPS5222469A publication Critical patent/JPS5222469A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Cold Cathode And The Manufacture (AREA)

Abstract

PURPOSE: To prevent evaporated substances from adhering to the cathode by surrounding the cathode with a conductive shield.
COPYRIGHT: (C)1977,JPO&Japio
JP9765675A 1974-09-20 1975-08-13 Field radiation type electron gun Pending JPS5222469A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9765675A JPS5222469A (en) 1975-08-13 1975-08-13 Field radiation type electron gun
US05/614,311 US4041316A (en) 1974-09-20 1975-09-17 Field emission electron gun with an evaporation source
GB38567/75A GB1518705A (en) 1974-09-20 1975-09-19 Field emission electron guns
DE2541899A DE2541899C3 (en) 1974-09-20 1975-09-19 Field emission electron source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9765675A JPS5222469A (en) 1975-08-13 1975-08-13 Field radiation type electron gun

Publications (1)

Publication Number Publication Date
JPS5222469A true JPS5222469A (en) 1977-02-19

Family

ID=14198110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9765675A Pending JPS5222469A (en) 1974-09-20 1975-08-13 Field radiation type electron gun

Country Status (1)

Country Link
JP (1) JPS5222469A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483674U (en) * 1977-11-25 1979-06-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483674U (en) * 1977-11-25 1979-06-13

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