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CH320563A - Magnet focusing device for cathode ray tubes, usable in particular for television - Google Patents

Magnet focusing device for cathode ray tubes, usable in particular for television

Info

Publication number
CH320563A
CH320563A CH320563DA CH320563A CH 320563 A CH320563 A CH 320563A CH 320563D A CH320563D A CH 320563DA CH 320563 A CH320563 A CH 320563A
Authority
CH
Switzerland
Prior art keywords
television
usable
cathode ray
ray tubes
focusing device
Prior art date
Application number
Other languages
French (fr)
Inventor
Edward Gould John
Original Assignee
Edward Gould John
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 Edward Gould John filed Critical Edward Gould John
Publication of CH320563A publication Critical patent/CH320563A/en

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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/68—Magnetic lenses using permanent magnets only
CH320563D 1953-09-21 1954-09-13 Magnet focusing device for cathode ray tubes, usable in particular for television CH320563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25935/53A GB761663A (en) 1953-09-21 1953-09-21 Improvements in or relating to focussing magnet systems for cathode ray tubes

Publications (1)

Publication Number Publication Date
CH320563A true CH320563A (en) 1957-03-31

Family

ID=10235705

Family Applications (1)

Application Number Title Priority Date Filing Date
CH320563D CH320563A (en) 1953-09-21 1954-09-13 Magnet focusing device for cathode ray tubes, usable in particular for television

Country Status (5)

Country Link
US (1) US2749486A (en)
BE (1) BE531679A (en)
CH (1) CH320563A (en)
FR (1) FR1106914A (en)
GB (1) GB761663A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864021A (en) * 1955-09-01 1958-12-09 Rca Corp Color kinescope adjunct
US3059156A (en) * 1957-06-19 1962-10-16 Moriya Saburo Miyata Means for controlling magnetic fields

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416687A (en) * 1944-03-30 1947-03-04 Bell Telephone Labor Inc Magnetic focussing device
US2418487A (en) * 1944-03-31 1947-04-08 Bell Telephone Labor Inc Cathode ray magnetic focusing device
NL144716B (en) * 1948-02-07 Bus Wand A G DEVICE FOR REMOVABLE STRETCHING OF TWO LEAD STRAIGHT FURNITURE PIECES.
US2640868A (en) * 1950-11-04 1953-06-02 All Star Products Inc Magnetic focusing device for cathode-ray tubes

Also Published As

Publication number Publication date
GB761663A (en) 1956-11-21
FR1106914A (en) 1955-12-27
US2749486A (en) 1956-06-05
BE531679A (en)

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