GB479226A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB479226A
GB479226A GB30959/36A GB3095936A GB479226A GB 479226 A GB479226 A GB 479226A GB 30959/36 A GB30959/36 A GB 30959/36A GB 3095936 A GB3095936 A GB 3095936A GB 479226 A GB479226 A GB 479226A
Authority
GB
United Kingdom
Prior art keywords
cathode
screen
driven
emissive
disc
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.)
Expired
Application number
GB30959/36A
Other languages
English (en)
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB479226A publication Critical patent/GB479226A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/481—Electron guns using field-emission, photo-emission, or secondary-emission electron source

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
GB30959/36A 1935-11-15 1936-11-12 Improvements in or relating to cathode ray tubes Expired GB479226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR809079T 1935-11-15

Publications (1)

Publication Number Publication Date
GB479226A true GB479226A (en) 1938-02-02

Family

ID=9253346

Family Applications (2)

Application Number Title Priority Date Filing Date
GB30959/36A Expired GB479226A (en) 1935-11-15 1936-11-12 Improvements in or relating to cathode ray tubes
GB19109/37A Expired GB479270A (en) 1935-11-15 1936-11-12 Improvements in or relating to cathode ray tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB19109/37A Expired GB479270A (en) 1935-11-15 1936-11-12 Improvements in or relating to cathode ray tubes

Country Status (4)

Country Link
US (1) US2175582A (enExample)
BE (1) BE417525A (enExample)
FR (1) FR809079A (enExample)
GB (2) GB479226A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644031A (en) * 1949-04-22 1953-06-30 Time Inc Scanning device
US2825838A (en) * 1953-06-04 1958-03-04 Csf Electron sources
US3364373A (en) * 1964-03-23 1968-01-16 Westinghouse Electric Corp Electron discharge device having a cathode element with a renewable electron emissive surface
US3311774A (en) * 1964-03-23 1967-03-28 Westinghouse Electric Corp Electron discharge device having a rotatable cathode therein
US3290540A (en) * 1964-04-16 1966-12-06 Westinghouse Electric Corp Electron discharge tube having a movable cathode tape

Also Published As

Publication number Publication date
US2175582A (en) 1939-10-10
GB479270A (en) 1938-02-02
FR809079A (fr) 1937-02-23
BE417525A (enExample)

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