GB528801A - Improvements in or relating to cathode ray tubes and to deflection systems therefor - Google Patents

Improvements in or relating to cathode ray tubes and to deflection systems therefor

Info

Publication number
GB528801A
GB528801A GB1349339A GB1349339A GB528801A GB 528801 A GB528801 A GB 528801A GB 1349339 A GB1349339 A GB 1349339A GB 1349339 A GB1349339 A GB 1349339A GB 528801 A GB528801 A GB 528801A
Authority
GB
United Kingdom
Prior art keywords
tube
ray tubes
coils
relating
cathode ray
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
GB1349339A
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.)
REGINALD ALEXANDER LISTER COLE
STC PLC
Original Assignee
REGINALD ALEXANDER LISTER COLE
Standard Telephone and Cables PLC
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 REGINALD ALEXANDER LISTER COLE, Standard Telephone and Cables PLC filed Critical REGINALD ALEXANDER LISTER COLE
Priority to GB1349339A priority Critical patent/GB528801A/en
Priority to FR865329D priority patent/FR865329A/en
Publication of GB528801A publication Critical patent/GB528801A/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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

528,801. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd., and COLE, R. A. L. May 5, 1939, No. 13493. [Class 39 (i)] The deflecting system for cathode-ray tubes consists of two pairs of coils A, B and C, D encompassing the neck of the tube, the coils in each pair crossing each other obliquely and being connected in series or in parallel so as to produce two magnetic fields perpendicular to each other and to the axis of the tube. In order to provide symmetry in the magnetic fields, the layers or groups of layers in the different coils are preferably interleaved in winding, and where this involves bridging connections these may be arranged to cut out any field parallel to the axis of the tube or to provide such field as may be required for focusing purposes. The bunching of the coils where they cross may be accommodated in a construction of the neck of the tube, or in grooves in a former or both.
GB1349339A 1939-05-05 1939-05-05 Improvements in or relating to cathode ray tubes and to deflection systems therefor Expired GB528801A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1349339A GB528801A (en) 1939-05-05 1939-05-05 Improvements in or relating to cathode ray tubes and to deflection systems therefor
FR865329D FR865329A (en) 1939-05-05 1940-05-02 Cathode ray tubes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1349339A GB528801A (en) 1939-05-05 1939-05-05 Improvements in or relating to cathode ray tubes and to deflection systems therefor

Publications (1)

Publication Number Publication Date
GB528801A true GB528801A (en) 1940-11-07

Family

ID=10023964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349339A Expired GB528801A (en) 1939-05-05 1939-05-05 Improvements in or relating to cathode ray tubes and to deflection systems therefor

Country Status (2)

Country Link
FR (1) FR865329A (en)
GB (1) GB528801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420156A (en) * 1939-08-31 1947-05-06 Hartford Nat Bank & Trust Co Device for electromagnetic deflection of a cathode-ray

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005151B (en) * 1954-04-24 1957-03-28 Voigt & Haeffner Ag Toggle or rocker switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420156A (en) * 1939-08-31 1947-05-06 Hartford Nat Bank & Trust Co Device for electromagnetic deflection of a cathode-ray

Also Published As

Publication number Publication date
FR865329A (en) 1941-05-20

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