JPS5542153A - Electron beam circular deflecting device - Google Patents

Electron beam circular deflecting device

Info

Publication number
JPS5542153A
JPS5542153A JP11535578A JP11535578A JPS5542153A JP S5542153 A JPS5542153 A JP S5542153A JP 11535578 A JP11535578 A JP 11535578A JP 11535578 A JP11535578 A JP 11535578A JP S5542153 A JPS5542153 A JP S5542153A
Authority
JP
Japan
Prior art keywords
signal
level
electron beam
cutoff
comparator
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
JP11535578A
Other languages
Japanese (ja)
Inventor
Hohachi Kaneuchi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11535578A priority Critical patent/JPS5542153A/en
Publication of JPS5542153A publication Critical patent/JPS5542153A/en
Pending legal-status Critical Current

Links

Landscapes

  • Welding Or Cutting Using Electron Beams (AREA)
  • Electron Beam Exposure (AREA)

Abstract

PURPOSE: To make possible welding of arc-form weld line by providing a control signal generating circuit which is capable of arbitraily setting radiation start position and cutoff position to the device of deflecting and scanning an electron beam circularly.
CONSTITUTION: When the level 5 of the deflection scanning signal Vx is set in a start position setter 14, an FF 32 is set and a step-form signal 12 is emitted from a comparator 15 upon coinciding of Vx with a set level signal 13, and at the same time, Vy corresponding to a level 7 is applied to a comparator 17 by way of impeadance converter 16 to set an FF 33 and output a step-form signal 20. These signals 12, 20 are applied simultaneously to an AND circuit 18, which in turn applies a step-form signal 10 to an electron beam control unit 10 to start transmission of the radiation start signal. In the similar manner, as the level 6 of V is set in a cutoff position setter 21, a step-form signal 22 is applied to the control unit 10 which then transmits a cutoff signal.
COPYRIGHT: (C)1980,JPO&Japio
JP11535578A 1978-09-19 1978-09-19 Electron beam circular deflecting device Pending JPS5542153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11535578A JPS5542153A (en) 1978-09-19 1978-09-19 Electron beam circular deflecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11535578A JPS5542153A (en) 1978-09-19 1978-09-19 Electron beam circular deflecting device

Publications (1)

Publication Number Publication Date
JPS5542153A true JPS5542153A (en) 1980-03-25

Family

ID=14660467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11535578A Pending JPS5542153A (en) 1978-09-19 1978-09-19 Electron beam circular deflecting device

Country Status (1)

Country Link
JP (1) JPS5542153A (en)

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