GB995262A - Improvements in or relating to cathode-ray oscillographs and like apparatus - Google Patents

Improvements in or relating to cathode-ray oscillographs and like apparatus

Info

Publication number
GB995262A
GB995262A GB27018/62D GB2701862D GB995262A GB 995262 A GB995262 A GB 995262A GB 27018/62 D GB27018/62 D GB 27018/62D GB 2701862 D GB2701862 D GB 2701862D GB 995262 A GB995262 A GB 995262A
Authority
GB
United Kingdom
Prior art keywords
deflection
pole faces
pair
gun axis
cathode
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
GB27018/62D
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB995262A publication Critical patent/GB995262A/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • 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
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

995,262. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 13, 1962 [July 13, 1961], No. 27018/62. Heading H1D. To amplify the deflection in a cathode-ray display apparatus, cf. an oscilloscope, there are provided, in the electron beam path beyond the deflection system D, two magnetic systems comprising pairs of parallel, rectangular pole faces P, P<SP>1</SP> producing parallel, but opposite, fields, the larger dimension of the first pair P being at right angles to the electron gun axis, and the larger dimension of the second pair forming a marked angle therewith. As shown, the two systems produce equal and opposite fields and between the first pair of pole faces P the angular deflection of the beam is amplified but a mean deflection 40 is superimposed. The second pair of pole faces P<SP>1</SP> are at an angle # 0 to the gun axis and provide further amplification of the beam deflection, the mean direction of the emergent beam being parallel to the gun axis. In an alternative arrangement, Fig. 3 (not shown), the field intensity between pole faces P<SP>1</SP> is greater than that between pole faces P so that the beam when not subjected to an initial deflection impinges on screen E on the gun axis at point I. To avoid astigmatism, the beam is focused by two independent systems of electrodes H, V forming lenses in the vertical and horizontal planes. Specification 650,044 and French Specification 866,058 are referred to.
GB27018/62D 1961-07-13 1962-07-13 Improvements in or relating to cathode-ray oscillographs and like apparatus Expired GB995262A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR867868A FR1330727A (en) 1961-07-13 1961-07-13 Improvements to oscillograph tubes and similar electronic ray apparatus

Publications (1)

Publication Number Publication Date
GB995262A true GB995262A (en) 1965-06-16

Family

ID=8759261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27018/62D Expired GB995262A (en) 1961-07-13 1962-07-13 Improvements in or relating to cathode-ray oscillographs and like apparatus

Country Status (3)

Country Link
US (1) US3247409A (en)
FR (1) FR1330727A (en)
GB (1) GB995262A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8100142A (en) * 1981-01-14 1982-08-02 Philips Nv Apparatus for displaying images using a cathode ray tube.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188579A (en) * 1933-05-27 1940-01-30 Loewe Radio Inc Cathode ray tube, more particularly for television purposes
US2454345A (en) * 1945-05-25 1948-11-23 Rudenberg Reinhold Cathode-ray deflection tube with electron lenses
US2944174A (en) * 1958-09-18 1960-07-05 Motorola Inc Electronic image system and method

Also Published As

Publication number Publication date
FR1330727A (en) 1963-06-28
US3247409A (en) 1966-04-19

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