GB798257A - Improvements in or relating to electron discharge devices of the hard type and to electrostatic lenses therefor - Google Patents

Improvements in or relating to electron discharge devices of the hard type and to electrostatic lenses therefor

Info

Publication number
GB798257A
GB798257A GB32959/54A GB3295954A GB798257A GB 798257 A GB798257 A GB 798257A GB 32959/54 A GB32959/54 A GB 32959/54A GB 3295954 A GB3295954 A GB 3295954A GB 798257 A GB798257 A GB 798257A
Authority
GB
United Kingdom
Prior art keywords
lens
electrode
lens electrode
cathode
disc
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
GB32959/54A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB798257A publication Critical patent/GB798257A/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
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun

Landscapes

  • Electrostatic Separation (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
GB32959/54A 1953-11-13 1954-11-15 Improvements in or relating to electron discharge devices of the hard type and to electrostatic lenses therefor Expired GB798257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE331020X 1953-11-13

Publications (1)

Publication Number Publication Date
GB798257A true GB798257A (en) 1958-07-16

Family

ID=6194185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32959/54A Expired GB798257A (en) 1953-11-13 1954-11-15 Improvements in or relating to electron discharge devices of the hard type and to electrostatic lenses therefor

Country Status (5)

Country Link
BE (1) BE532870A (enrdf_load_stackoverflow)
CH (1) CH331020A (enrdf_load_stackoverflow)
FR (1) FR1147028A (enrdf_load_stackoverflow)
GB (1) GB798257A (enrdf_load_stackoverflow)
NL (1) NL184331B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257826A (en) * 1991-07-10 1993-01-20 Samsung Electronic Devices Cathode ray tube electron gun
EP1306871A3 (en) * 2001-10-25 2004-04-21 Northrop Grumman Corporation Apparatus and method for focusing high-density electron beam emitted from planar cold cathode electron emitter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257826A (en) * 1991-07-10 1993-01-20 Samsung Electronic Devices Cathode ray tube electron gun
GB2257826B (en) * 1991-07-10 1995-04-12 Samsung Electronic Devices Cathode ray tube
EP1306871A3 (en) * 2001-10-25 2004-04-21 Northrop Grumman Corporation Apparatus and method for focusing high-density electron beam emitted from planar cold cathode electron emitter

Also Published As

Publication number Publication date
FR1147028A (fr) 1957-11-18
NL184331B (nl)
CH331020A (de) 1958-06-30
BE532870A (enrdf_load_stackoverflow)

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