GB606005A - Improvements in or relating to electromagnetically focussed and deflected cathode ray devices - Google Patents

Improvements in or relating to electromagnetically focussed and deflected cathode ray devices

Info

Publication number
GB606005A
GB606005A GB6548/46A GB654846A GB606005A GB 606005 A GB606005 A GB 606005A GB 6548/46 A GB6548/46 A GB 6548/46A GB 654846 A GB654846 A GB 654846A GB 606005 A GB606005 A GB 606005A
Authority
GB
United Kingdom
Prior art keywords
cathode
gun
electromagnetically
focussed
relating
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
GB6548/46A
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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
Priority to BE471546D priority Critical patent/BE471546A/xx
Priority to NL67155D priority patent/NL67155C/xx
Application filed by Pye Ltd filed Critical Pye Ltd
Priority to GB6548/46A priority patent/GB606005A/en
Priority to US730719A priority patent/US2500623A/en
Priority to FR942329D priority patent/FR942329A/en
Publication of GB606005A publication Critical patent/GB606005A/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
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses

Landscapes

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

Abstract

606,005. Cathode-ray tubes. BABBS, C. H., and PYE, Ltd. March 2, 1946, No. 6548. [Class 39 (i)] In a cathode-ray tube having the beam focused and deflected electromagnetically, two magnetic members 5, 6 are disposed diametrically opposite with respect to the gun axis and between the gun 2 and the focusing coil 3, and are mounted for rotational and longitudinal adjustment to correct astigmatism introduced by the deflecting coils or the gun or both. The members 5 and 6 are soft iron pins supported on a tubular ring 7 of non-magnetic material, the pins being parallel to the axis of the ring which is adapted to slide on the neck of the cathode-ray tube and is provided with a longitudinal slit to impart a resilient grip and a collar 9 with a knurled edge.
GB6548/46A 1946-03-02 1946-03-02 Improvements in or relating to electromagnetically focussed and deflected cathode ray devices Expired GB606005A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE471546D BE471546A (en) 1946-03-02
NL67155D NL67155C (en) 1946-03-02
GB6548/46A GB606005A (en) 1946-03-02 1946-03-02 Improvements in or relating to electromagnetically focussed and deflected cathode ray devices
US730719A US2500623A (en) 1946-03-02 1947-02-25 Cathode-ray device
FR942329D FR942329A (en) 1946-03-02 1947-02-26 Improvements to cathode ray devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6548/46A GB606005A (en) 1946-03-02 1946-03-02 Improvements in or relating to electromagnetically focussed and deflected cathode ray devices

Publications (1)

Publication Number Publication Date
GB606005A true GB606005A (en) 1948-08-04

Family

ID=9816502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6548/46A Expired GB606005A (en) 1946-03-02 1946-03-02 Improvements in or relating to electromagnetically focussed and deflected cathode ray devices

Country Status (5)

Country Link
US (1) US2500623A (en)
BE (1) BE471546A (en)
FR (1) FR942329A (en)
GB (1) GB606005A (en)
NL (1) NL67155C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541446A (en) * 1949-01-04 1951-02-13 Barnet S Trott Image distortion corrector for cathode-ray tubes
US2602902A (en) * 1950-02-14 1952-07-08 Bendix Aviat Corp Sweep amplitude control for magnetically deflected cathode-ray tubes
US2876372A (en) * 1954-11-19 1959-03-03 Hazeltine Research Inc Color-image-reproducing apparatus
US2790920A (en) * 1955-05-09 1957-04-30 Philco Corp Apparatus for control of electron beam cross section
US2922908A (en) * 1955-08-31 1960-01-26 Westinghouse Electric Corp Retaining device
US2907908A (en) * 1955-09-01 1959-10-06 Philco Corp Apparatus for preventing distortion in plural beam cathode ray tubes
US2897390A (en) * 1955-12-23 1959-07-28 Glaser Steers Corp Magnetic convergence assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1995376A (en) * 1932-10-29 1935-03-26 Rca Corp Television system
US2212640A (en) * 1934-07-07 1940-08-27 Radio Inventions Inc Cathode ray system
US2157182A (en) * 1935-12-31 1939-05-09 Rca Corp Cathode ray deflecting device
US2177688A (en) * 1936-12-24 1939-10-31 Hazeltine Corp Cathode-ray tube scanning system
US2431077A (en) * 1943-08-31 1947-11-18 Rca Corp Cathode-ray tube with revolving magnets and adjustable sleeve

Also Published As

Publication number Publication date
BE471546A (en)
FR942329A (en) 1949-02-04
NL67155C (en)
US2500623A (en) 1950-03-14

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