GB720662A - Improvements in or relating to permanent magnet electron lenses - Google Patents

Improvements in or relating to permanent magnet electron lenses

Info

Publication number
GB720662A
GB720662A GB3164/53A GB316453A GB720662A GB 720662 A GB720662 A GB 720662A GB 3164/53 A GB3164/53 A GB 3164/53A GB 316453 A GB316453 A GB 316453A GB 720662 A GB720662 A GB 720662A
Authority
GB
United Kingdom
Prior art keywords
springs
flanges
lens
permanent magnet
adjustable
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
GB3164/53A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB720662A publication Critical patent/GB720662A/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

  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Transforming Electric Information Into Light Information (AREA)
GB3164/53A 1952-02-07 1953-02-04 Improvements in or relating to permanent magnet electron lenses Expired GB720662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL720662X 1952-02-07

Publications (1)

Publication Number Publication Date
GB720662A true GB720662A (en) 1954-12-22

Family

ID=19816059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3164/53A Expired GB720662A (en) 1952-02-07 1953-02-04 Improvements in or relating to permanent magnet electron lenses

Country Status (4)

Country Link
DE (1) DE924705C (pm)
FR (1) FR1070399A (pm)
GB (1) GB720662A (pm)
NL (1) NL81057C (pm)

Also Published As

Publication number Publication date
FR1070399A (fr) 1954-07-23
DE924705C (de) 1955-03-07
NL81057C (pm)

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