JPS5214347A - Field emission electron gun - Google Patents

Field emission electron gun

Info

Publication number
JPS5214347A
JPS5214347A JP9025775A JP9025775A JPS5214347A JP S5214347 A JPS5214347 A JP S5214347A JP 9025775 A JP9025775 A JP 9025775A JP 9025775 A JP9025775 A JP 9025775A JP S5214347 A JPS5214347 A JP S5214347A
Authority
JP
Japan
Prior art keywords
field emission
electron gun
emission electron
cathodes
alived
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
JP9025775A
Other languages
Japanese (ja)
Inventor
Hideo Todokoro
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 JP9025775A priority Critical patent/JPS5214347A/en
Publication of JPS5214347A publication Critical patent/JPS5214347A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: Making the interchange of cathodes possible, without having to break the vacuum, by arranging multiple number of field emission cathodes on a tiltable supporting structure, so that any particular cathode can be alived with the perforation by the adjustment of the tilting angle.
COPYRIGHT: (C)1977,JPO&Japio
JP9025775A 1975-07-25 1975-07-25 Field emission electron gun Pending JPS5214347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9025775A JPS5214347A (en) 1975-07-25 1975-07-25 Field emission electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9025775A JPS5214347A (en) 1975-07-25 1975-07-25 Field emission electron gun

Publications (1)

Publication Number Publication Date
JPS5214347A true JPS5214347A (en) 1977-02-03

Family

ID=13993429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9025775A Pending JPS5214347A (en) 1975-07-25 1975-07-25 Field emission electron gun

Country Status (1)

Country Link
JP (1) JPS5214347A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01143259U (en) * 1988-03-18 1989-10-02
JPH0217798U (en) * 1988-07-21 1990-02-06
JPH0218371U (en) * 1988-07-18 1990-02-07
JPH06184908A (en) * 1992-12-18 1994-07-05 Morimura Kosan Kk Production of netty structure
EP1215338A2 (en) 2000-12-15 2002-06-19 Honda Giken Kogyo Kabushiki Kaisha Scraper for snow removal machine
JP2007149659A (en) * 2005-10-27 2007-06-14 Sumitomo Electric Ind Ltd Field-emission electron gun, electron microscope and electron beam exposure apparatus
US8563121B2 (en) 2000-03-15 2013-10-22 C-Eng Co., Ltd. Three-dimensional netted structure having four molded surfaces
US9169585B2 (en) 2000-03-15 2015-10-27 C-Eng Co., Ltd. Three dimensional netted structure
US9194066B2 (en) 2000-03-15 2015-11-24 C-Eng Co., Ltd. Three dimensional netted structure

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01143259U (en) * 1988-03-18 1989-10-02
JPH0218371U (en) * 1988-07-18 1990-02-07
JPH0217798U (en) * 1988-07-21 1990-02-06
JPH0516639Y2 (en) * 1988-07-21 1993-04-30
JPH06184908A (en) * 1992-12-18 1994-07-05 Morimura Kosan Kk Production of netty structure
US8563121B2 (en) 2000-03-15 2013-10-22 C-Eng Co., Ltd. Three-dimensional netted structure having four molded surfaces
US9169585B2 (en) 2000-03-15 2015-10-27 C-Eng Co., Ltd. Three dimensional netted structure
US9194066B2 (en) 2000-03-15 2015-11-24 C-Eng Co., Ltd. Three dimensional netted structure
EP1215338A2 (en) 2000-12-15 2002-06-19 Honda Giken Kogyo Kabushiki Kaisha Scraper for snow removal machine
US6612050B2 (en) 2000-12-15 2003-09-02 Honda Giken Kogyo Kabushiki Kaisha Scraper for snow removing machine and snow removing attachment having scraper
JP2007149659A (en) * 2005-10-27 2007-06-14 Sumitomo Electric Ind Ltd Field-emission electron gun, electron microscope and electron beam exposure apparatus

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