GB882290A - Gun system for a cathode ray tube, particularly a television tube - Google Patents

Gun system for a cathode ray tube, particularly a television tube

Info

Publication number
GB882290A
GB882290A GB11417/59A GB1141759A GB882290A GB 882290 A GB882290 A GB 882290A GB 11417/59 A GB11417/59 A GB 11417/59A GB 1141759 A GB1141759 A GB 1141759A GB 882290 A GB882290 A GB 882290A
Authority
GB
United Kingdom
Prior art keywords
electrode
gun
electrodes
neck portion
secured
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
GB11417/59A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB882290A publication Critical patent/GB882290A/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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

882,290. Cathode-ray tubes. STANDARD TELEPHONES & CABLES Ltd. April 3, 1959 [April 9, 1958], No. 11417/59. Class 39(1) In a cathode-ray tube having an envelope comprising a cylindrical neck portion and an electron gun within the neck portion, the gun 5 comprises the unitary assembly of at least a grid and an Einzel lens electrode system 4, 2b, 2a 3 spaced apart and supported along the neck portion by longitudinally extending rods 6 of insulating material, e.g. of glass or ceramics, secured to radially extending portions 7 of the gun electrodes; the Einzel lens system comprises a pair of aligned tubular electrodes 3, 4 of relatively small diameter, each closed, except for a central aperture, at the end facing the other electrode of the pair, and a generally tubular central electrode 2a, 2b surrounding the ends of the aligned electrode pair 3, 4 and, in the space between these ends, being of enlarged diameter with its wall closely spaced from the wall of the neck portion of the tube envelope the rods 6 terminating in the neighbourhood of and being secured to the smaller diameter ends of the centre electrode. In assembly the gun is formed in two distinct halves terminating in parts 2a and 2b of the central electrode which are then joined together after separate support rods 6 have been secured to electrodes 3 and 2a and to electrodes 2b, 4 and those forming the electron gun.
GB11417/59A 1958-04-09 1959-04-03 Gun system for a cathode ray tube, particularly a television tube Expired GB882290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE882290X 1958-04-09

Publications (1)

Publication Number Publication Date
GB882290A true GB882290A (en) 1961-11-15

Family

ID=6831668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11417/59A Expired GB882290A (en) 1958-04-09 1959-04-03 Gun system for a cathode ray tube, particularly a television tube

Country Status (1)

Country Link
GB (1) GB882290A (en)

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