GB747387A - Electrostatic electronic lens for electron beam valves - Google Patents

Electrostatic electronic lens for electron beam valves

Info

Publication number
GB747387A
GB747387A GB4651/54A GB465154A GB747387A GB 747387 A GB747387 A GB 747387A GB 4651/54 A GB4651/54 A GB 4651/54A GB 465154 A GB465154 A GB 465154A GB 747387 A GB747387 A GB 747387A
Authority
GB
United Kingdom
Prior art keywords
electron beam
electronic lens
diameter
feb
beam valves
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
GB4651/54A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB747387A publication Critical patent/GB747387A/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

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

747,387. Electron lenses. LOEWE OPTA AKT.-GES. Feb. 17, 1954 [Feb. 18, 1953]. No. 4651/54. Class 39 (1), The outer electrodes 2, 3 of a unipotential lens are made of much smaller diameter than the inner one 1, and are provided with funnel-shaped extensions 6, 7 to bring the diameter d of their inner ends nearly up to, preferably 0.7 to 0.9 of, the diameter D of the inner electrode. Apertured diaphragms 8, 9 may close the narrow ends of the funnels. The inner electrode may overlap the outer ones.
GB4651/54A 1953-02-18 1954-02-17 Electrostatic electronic lens for electron beam valves Expired GB747387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE747387X 1953-02-18

Publications (1)

Publication Number Publication Date
GB747387A true GB747387A (en) 1956-04-04

Family

ID=6648615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4651/54A Expired GB747387A (en) 1953-02-18 1954-02-17 Electrostatic electronic lens for electron beam valves

Country Status (2)

Country Link
US (1) US2919378A (en)
GB (1) GB747387A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL162243C (en) * 1970-09-04 1980-04-15 Philips Nv TELEVISION CAMERA TUBE.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE406706A (en) * 1933-12-09
US2243362A (en) * 1938-08-20 1941-05-27 Thomas W Sukumlyn Electron microscope system
US2405611A (en) * 1942-06-26 1946-08-13 Bell Telephone Labor Inc Electron beam amplifier
US2476060A (en) * 1945-01-11 1949-07-12 Cossor Ltd A C Electron gun structure

Also Published As

Publication number Publication date
US2919378A (en) 1959-12-29

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