GB1227828A - - Google Patents

Info

Publication number
GB1227828A
GB1227828A GB1227828DA GB1227828A GB 1227828 A GB1227828 A GB 1227828A GB 1227828D A GB1227828D A GB 1227828DA GB 1227828 A GB1227828 A GB 1227828A
Authority
GB
United Kingdom
Prior art keywords
flange
deflection
july
deflecting plates
directions
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
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 filed Critical
Publication of GB1227828A publication Critical patent/GB1227828A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/121—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen tubes for oscillography
    • 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
    • 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

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

1,227,828. Cathode-ray tubes. TELEFUNKEN PATENTVERWALTUNGS G.m.b.H. 16 July, 1968 [18 July, 1967], No. 33841/68. Heading H1D. A post-deflection accelerating electrode 31 is provided with a flange 35 adapted to produce an electric field which is more strongly convergent with increasing distance from the tube axis in the diagonal direction than in the two main deflection directions, thereby reducing pincushion distortion. Preferably the height of the flange 35 varies, being minimum in the deflection direction of the electrostatic deflecting plates nearer to the fluorescent screen, higher in the deflection direction of the other deflecting plates, and maximum in the diagonal directions (Fig. 5, not shown); as an alternative, or in addition, the flange may be non-circular. The electrode 31 may be flat or curved, and may be a foil, a tensioned grid, or a net.
GB1227828D 1967-07-18 1968-07-16 Expired GB1227828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1614840 1967-07-18

Publications (1)

Publication Number Publication Date
GB1227828A true GB1227828A (en) 1971-04-07

Family

ID=5682036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1227828D Expired GB1227828A (en) 1967-07-18 1968-07-16

Country Status (3)

Country Link
US (1) US3529194A (en)
FR (1) FR1573642A (en)
GB (1) GB1227828A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135503A (en) * 1982-12-27 1984-08-30 Tektronix Inc Accelerating and scan expansion electron lens system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110559U (en) * 1973-01-19 1974-09-20
JPS5155262U (en) * 1974-10-24 1976-04-28
US4304294A (en) * 1978-08-17 1981-12-08 Ford Aerospace & Communications Corp. Thermal energy switch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2315367A (en) * 1940-07-31 1943-03-30 Rca Corp Cathode-ray tube
NL250540A (en) * 1959-04-16
US3243645A (en) * 1962-08-01 1966-03-29 Paramount Pictures Corp Post deflection focusing cathode ray tube for color television images of high brightness and low raster distortion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135503A (en) * 1982-12-27 1984-08-30 Tektronix Inc Accelerating and scan expansion electron lens system

Also Published As

Publication number Publication date
FR1573642A (en) 1969-07-04
US3529194A (en) 1970-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee