FR854515A - Perfectionnements aux systèmes de télévision utilisant des tubes à rayons cathodiques - Google Patents

Perfectionnements aux systèmes de télévision utilisant des tubes à rayons cathodiques

Info

Publication number
FR854515A
FR854515A FR854515DA FR854515A FR 854515 A FR854515 A FR 854515A FR 854515D A FR854515D A FR 854515DA FR 854515 A FR854515 A FR 854515A
Authority
FR
France
Prior art keywords
cathode ray
ray tubes
television systems
television
systems
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
Other languages
English (en)
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.)
AC Cossor Ltd
Original Assignee
AC Cossor 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 claimed from US272508A external-priority patent/US2336837A/en
Application filed by AC Cossor Ltd filed Critical AC Cossor Ltd
Application granted granted Critical
Publication of FR854515A publication Critical patent/FR854515A/fr
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
    • H01J29/766—Deflecting by magnetic fields only using a combination of saddle coils and toroidal windings
    • 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
    • H01J29/54—Arrangements for centring 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/68—Magnetic lenses using permanent magnets only
FR854515D 1938-05-10 1939-05-09 Perfectionnements aux systèmes de télévision utilisant des tubes à rayons cathodiques Expired FR854515A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB212037X 1938-05-10
US272508A US2336837A (en) 1938-05-10 1939-05-08 Electrical apparatus
US459018A US2387110A (en) 1938-05-10 1942-09-19 Electrical apparatus

Publications (1)

Publication Number Publication Date
FR854515A true FR854515A (fr) 1940-04-17

Family

ID=32110572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR854515D Expired FR854515A (fr) 1938-05-10 1939-05-09 Perfectionnements aux systèmes de télévision utilisant des tubes à rayons cathodiques

Country Status (5)

Country Link
US (1) US2387110A (fr)
CH (1) CH212037A (fr)
FR (1) FR854515A (fr)
GB (2) GB519668A (fr)
NL (1) NL60535C (fr)

Also Published As

Publication number Publication date
NL60535C (fr)
CH212037A (fr) 1940-10-31
GB519715A (en) 1940-04-03
US2387110A (en) 1945-10-16
GB519668A (en) 1940-04-03

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