BE477662A - - Google Patents

Info

Publication number
BE477662A
BE477662A BE477662DA BE477662A BE 477662 A BE477662 A BE 477662A BE 477662D A BE477662D A BE 477662DA BE 477662 A BE477662 A BE 477662A
Authority
BE
Belgium
Application number
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.)
Publication of BE477662A publication Critical patent/BE477662A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/30—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at anode potential, e.g. iconoscope
BE477662D 1939-07-28 BE477662A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21988/39A GB532717A (en) 1939-07-28 1939-07-28 Improvements in or relating to electron discharge apparatus using secondary emission

Publications (1)

Publication Number Publication Date
BE477662A true BE477662A (de)

Family

ID=10172112

Family Applications (1)

Application Number Title Priority Date Filing Date
BE477662D BE477662A (de) 1939-07-28

Country Status (4)

Country Link
US (1) US2585057A (de)
BE (1) BE477662A (de)
FR (1) FR867295A (de)
GB (1) GB532717A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE563653A (de) * 1957-03-27

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704155A (en) * 1923-07-27 1929-03-05 Albert G Thomas Vacuum tube
US2037352A (en) * 1929-01-12 1936-04-14 Rca Corp Electronic vacuum tube
GB511449A (en) * 1938-02-17 1939-08-18 Marconi Wireless Telegraph Co Improvements in or relating to electron discharge devices
BE440174A (de) * 1939-06-06
US2358542A (en) * 1940-07-26 1944-09-19 Rca Corp Currentless grid tube

Also Published As

Publication number Publication date
US2585057A (en) 1952-02-12
GB532717A (en) 1941-01-29
FR867295A (fr) 1941-10-10

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