GB884300A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB884300A
GB884300A GB9798/58A GB979858A GB884300A GB 884300 A GB884300 A GB 884300A GB 9798/58 A GB9798/58 A GB 9798/58A GB 979858 A GB979858 A GB 979858A GB 884300 A GB884300 A GB 884300A
Authority
GB
United Kingdom
Prior art keywords
deflection
lens
screen
action
plane
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
GB9798/58A
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 GB884300A publication Critical patent/GB884300A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/80Arrangements 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)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

884,300. Cathode-ray tubes. TELEFUNKEN G.m.b.H. March 27, 1958 [March 27, 1957], No. 9798/58. Class 39(1) In a post-deflection acceleration cathoderay tube in which the action of the accelerating field 13 adjacent the second deflection system 12 is to converge the beam towards the axis only in one plane of deflection, Fig. 3a, an intermediate line image 14 is formed between the deflection system 12 and the screen 6 by the action of a lens 11. The line image is magnified by the field 13 and reproduced inverted on the screen. The lens 11 is preferably cylindrical and may vary in refractive power in relation to the angle of deflection produced by the first deflection system 10 in such a way as to overcome spot distortion at the screen The field 13 may have the action of a toroidal lens and produce a weak convergence or a divergence of the beam in the orthogonal plane of deflection, Fig. 3b, or no refractive effect may be produced in this plane. The principal converging lens 3 may be rotationally symmetrical, cylindrical or toroidal.
GB9798/58A 1957-03-27 1958-03-27 Improvements in or relating to cathode ray tubes Expired GB884300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET13423A DE1098627B (en) 1957-03-27 1957-03-27 Electron-optical electrode arrangement for cathode ray tubes

Publications (1)

Publication Number Publication Date
GB884300A true GB884300A (en) 1961-12-13

Family

ID=7547331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9798/58A Expired GB884300A (en) 1957-03-27 1958-03-27 Improvements in or relating to cathode ray tubes

Country Status (6)

Country Link
US (1) US2954499A (en)
CH (1) CH360442A (en)
DE (1) DE1098627B (en)
FR (1) FR1191289A (en)
GB (1) GB884300A (en)
NL (1) NL226053A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1455405A (en) * 1965-09-03 1966-04-01 Csf Improvements to cathode ray tubes incorporating a quadrupole electronic lens and a post-acceleration device
GB1165002A (en) * 1965-09-25 1969-09-24 Emi Ltd Improvements relating to Cathode Ray Tubes and Focusing and Deflecting Arrangements Therefor.
US3936693A (en) * 1972-10-02 1976-02-03 General Electric Company Two-aperture immersion lens
US4044282A (en) * 1974-10-17 1977-08-23 Balandin Genrikh D Cathode-ray tube with variable energy of beam electrons
US4142133A (en) * 1976-10-20 1979-02-27 Balandin Genrikh D Cathode-ray tube with variable energy of beam electrons
US5339003A (en) * 1992-06-22 1994-08-16 Principia Optics, Inc. Laser screen for a cathode-ray tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2111231A (en) * 1934-06-27 1938-03-15 Radio Patents Corp Recording device
US2212640A (en) * 1934-07-07 1940-08-27 Radio Inventions Inc Cathode ray system
FR800863A (en) * 1935-04-19 1936-07-21 Cfcmug Electrostatic deflection system for cathode ray oscillographs
US2114572A (en) * 1936-06-01 1938-04-19 Radio Inventions Inc Cathode ray ture system
NL97277C (en) * 1940-03-13
US2572858A (en) * 1947-06-03 1951-10-30 Sylvania Electric Prod Electron optical system
US2861209A (en) * 1953-12-14 1958-11-18 Hazeltine Research Inc Cathode-ray-tube beam-deflection system

Also Published As

Publication number Publication date
CH360442A (en) 1962-02-28
NL226053A (en)
FR1191289A (en) 1959-10-19
US2954499A (en) 1960-09-27
DE1098627B (en) 1961-02-02

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