GB501931A - Improvements relating to magnetic electron lens systems for cathode ray devices - Google Patents

Improvements relating to magnetic electron lens systems for cathode ray devices

Info

Publication number
GB501931A
GB501931A GB24738/37A GB2473837A GB501931A GB 501931 A GB501931 A GB 501931A GB 24738/37 A GB24738/37 A GB 24738/37A GB 2473837 A GB2473837 A GB 2473837A GB 501931 A GB501931 A GB 501931A
Authority
GB
United Kingdom
Prior art keywords
magnets
axis
cathode ray
lens systems
improvements 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
GB24738/37A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB501931A publication Critical patent/GB501931A/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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/68—Magnetic lenses using permanent magnets only

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
GB24738/37A 1936-09-11 1937-09-10 Improvements relating to magnetic electron lens systems for cathode ray devices Expired GB501931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE501931X 1936-09-11

Publications (1)

Publication Number Publication Date
GB501931A true GB501931A (en) 1939-03-08

Family

ID=6545827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24738/37A Expired GB501931A (en) 1936-09-11 1937-09-10 Improvements relating to magnetic electron lens systems for cathode ray devices

Country Status (2)

Country Link
GB (1) GB501931A (de)
NL (1) NL54829C (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483407A (en) * 1940-08-02 1949-10-04 Int Standard Electric Corp Focusing arrangement for electron discharge devices of electron velocity modulation tpe
US2569327A (en) * 1948-08-31 1951-09-25 Rca Corp Electron beam bender
US2575067A (en) * 1948-05-13 1951-11-13 Clarostat Mfg Co Inc Ion trap
US2611003A (en) * 1951-02-21 1952-09-16 Rca Corp Beam alignment device
US2634381A (en) * 1951-03-26 1953-04-07 Zenith Radio Corp Cathode-ray tube beam-positioning device
US2910603A (en) * 1955-10-04 1959-10-27 Philips Corp Device for compensating astigmatism in a magnetic electron lens
US2950407A (en) * 1956-12-21 1960-08-23 Rca Corp Electric beam controlling apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483407A (en) * 1940-08-02 1949-10-04 Int Standard Electric Corp Focusing arrangement for electron discharge devices of electron velocity modulation tpe
US2575067A (en) * 1948-05-13 1951-11-13 Clarostat Mfg Co Inc Ion trap
US2569327A (en) * 1948-08-31 1951-09-25 Rca Corp Electron beam bender
US2611003A (en) * 1951-02-21 1952-09-16 Rca Corp Beam alignment device
US2634381A (en) * 1951-03-26 1953-04-07 Zenith Radio Corp Cathode-ray tube beam-positioning device
US2910603A (en) * 1955-10-04 1959-10-27 Philips Corp Device for compensating astigmatism in a magnetic electron lens
US2950407A (en) * 1956-12-21 1960-08-23 Rca Corp Electric beam controlling apparatus

Also Published As

Publication number Publication date
NL54829C (de)

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