GB1165003A - Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements. - Google Patents

Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements.

Info

Publication number
GB1165003A
GB1165003A GB2457969A GB2457969A GB1165003A GB 1165003 A GB1165003 A GB 1165003A GB 2457969 A GB2457969 A GB 2457969A GB 2457969 A GB2457969 A GB 2457969A GB 1165003 A GB1165003 A GB 1165003A
Authority
GB
United Kingdom
Prior art keywords
ray tube
cathode ray
improvements relating
cathode
tube focusing
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
GB2457969A
Inventor
Bernard Joseph Mayo
James Alec Lodge
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2457969A priority Critical patent/GB1165003A/en
Publication of GB1165003A publication Critical patent/GB1165003A/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

1,165,003. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. 15 Sept., 1966 [25 Sept., 1965]. No. 24579/69. Divided out of 1,165,002. Heading H1D. The description is the same as that of Specification 1,165,002, but the claims are directed to a cathode-ray tube in which an electronpermeable electrostatic screen-e.g. a mesh grid electrode-is disposed adjacent the exit end of a pair of electrostatic deflection plates,'whereby, by the application of a suitable potential to the grid-e.g. the mean potential of the deflection plates-curvature of the image field may be corrected.
GB2457969A 1965-09-25 1965-09-25 Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements. Expired GB1165003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2457969A GB1165003A (en) 1965-09-25 1965-09-25 Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2457969A GB1165003A (en) 1965-09-25 1965-09-25 Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements.

Publications (1)

Publication Number Publication Date
GB1165003A true GB1165003A (en) 1969-09-24

Family

ID=10213878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2457969A Expired GB1165003A (en) 1965-09-25 1965-09-25 Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements.

Country Status (1)

Country Link
GB (1) GB1165003A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees