FR2139198A1 - Television viewing of electron beam welding - using secondary emission electrons from workpiece - Google Patents

Television viewing of electron beam welding - using secondary emission electrons from workpiece

Info

Publication number
FR2139198A1
FR2139198A1 FR7219208A FR7219208A FR2139198A1 FR 2139198 A1 FR2139198 A1 FR 2139198A1 FR 7219208 A FR7219208 A FR 7219208A FR 7219208 A FR7219208 A FR 7219208A FR 2139198 A1 FR2139198 A1 FR 2139198A1
Authority
FR
France
Prior art keywords
workpiece
welding
electron beam
beam welding
secondary emission
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.)
Withdrawn
Application number
FR7219208A
Other languages
English (en)
French (fr)
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.)
ZVARACSKY BRATISLAVA
Original Assignee
ZVARACSKY BRATISLAVA
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 ZVARACSKY BRATISLAVA filed Critical ZVARACSKY BRATISLAVA
Publication of FR2139198A1 publication Critical patent/FR2139198A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • H01J37/3002—Details
    • H01J37/3005—Observing the objects or the point of impact on the object

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
FR7219208A 1971-05-27 1972-05-29 Television viewing of electron beam welding - using secondary emission electrons from workpiece Withdrawn FR2139198A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS386671 1971-05-27

Publications (1)

Publication Number Publication Date
FR2139198A1 true FR2139198A1 (en) 1973-01-05

Family

ID=5379994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7219208A Withdrawn FR2139198A1 (en) 1971-05-27 1972-05-29 Television viewing of electron beam welding - using secondary emission electrons from workpiece

Country Status (4)

Country Link
DD (1) DD96877A1 (OSRAM)
DE (1) DE2225761A1 (OSRAM)
FR (1) FR2139198A1 (OSRAM)
HU (1) HU166520B (OSRAM)

Also Published As

Publication number Publication date
DD96877A1 (OSRAM) 1973-04-12
HU166520B (OSRAM) 1975-03-28
DE2225761A1 (de) 1973-01-04

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Legal Events

Date Code Title Description
ST Notification of lapse