GB481516A - Improvements in or relating to magnetic deflecting means for electron discharge devices - Google Patents

Improvements in or relating to magnetic deflecting means for electron discharge devices

Info

Publication number
GB481516A
GB481516A GB2480936A GB2480936A GB481516A GB 481516 A GB481516 A GB 481516A GB 2480936 A GB2480936 A GB 2480936A GB 2480936 A GB2480936 A GB 2480936A GB 481516 A GB481516 A GB 481516A
Authority
GB
United Kingdom
Prior art keywords
coil
core
electron discharge
relating
magnetic
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
GB2480936A
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.)
ALFRED HENRY GILBERT
Baird Television Ltd
Original Assignee
ALFRED HENRY GILBERT
Baird Television 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 ALFRED HENRY GILBERT, Baird Television Ltd filed Critical ALFRED HENRY GILBERT
Priority to GB2480936A priority Critical patent/GB481516A/en
Priority to DEF83636D priority patent/DE745915C/en
Publication of GB481516A publication Critical patent/GB481516A/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)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

481,516. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and GILBERT, A. H. Sept. 11, 1936, No. 24809: [Class 39 (i)] The invention relates to magnetic electron beam deflecting systems of the type comprising an open ferro-magnetic core 5 carrying windings 4 through which a varying electric current passes, the limbs of the core embracing the electron discharge device in which a deflecting field is to be produced. In order that the deflecting field may increase in linear relation to time, at least one short-circuited winding 6 surrounds the core. The coupling between the coils 4, 6 may be varied by altering the position of the coil 6, which may have from one to four turns of resistance wire so that its L : R ratio is low. A short circuited coil may be placed near the end of each limb. According to the Provisional Specification, the shortcircuited coil may be of low resistance.
GB2480936A 1936-09-11 1936-09-11 Improvements in or relating to magnetic deflecting means for electron discharge devices Expired GB481516A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2480936A GB481516A (en) 1936-09-11 1936-09-11 Improvements in or relating to magnetic deflecting means for electron discharge devices
DEF83636D DE745915C (en) 1936-09-11 1937-09-09 Arrangement for linearizing the curvature occurring at the beginning of the deflection curve in ferromagnetic deflection systems for cathode rays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2480936A GB481516A (en) 1936-09-11 1936-09-11 Improvements in or relating to magnetic deflecting means for electron discharge devices

Publications (1)

Publication Number Publication Date
GB481516A true GB481516A (en) 1938-03-11

Family

ID=10217558

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2480936A Expired GB481516A (en) 1936-09-11 1936-09-11 Improvements in or relating to magnetic deflecting means for electron discharge devices

Country Status (2)

Country Link
DE (1) DE745915C (en)
GB (1) GB481516A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95548C (en) * 1952-06-05

Also Published As

Publication number Publication date
DE745915C (en) 1944-04-25

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