US2053537A - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
US2053537A
US2053537A US680583A US68058333A US2053537A US 2053537 A US2053537 A US 2053537A US 680583 A US680583 A US 680583A US 68058333 A US68058333 A US 68058333A US 2053537 A US2053537 A US 2053537A
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United States
Prior art keywords
ray
anode
tube
potential
cathode ray
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Expired - Lifetime
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US680583A
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English (en)
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Schlesinger Kurt
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Individual
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Individual
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    • 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
    • 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
    • H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection

Definitions

  • center point error the density of light increased in the two axial planes.
  • Fig. 1 illustrates the conditions.
  • the center point of the image field on the luminous screenan i of the cathode ray tube 2 is taken. to be the point 8.
  • the one plate t is passed togather with the anode 5 on common potential to a straight line from the anode to the screen, i. e.,
  • a method has become known in which the oblique entry of the ray into the plate space is accomplished by the fact that the neck of the tube together with the entire ray-generating system and the anode 5 are furnished with a correspondingly inclined position.
  • This method possesses appreciable disadvantages in the manufacture.
  • the angle of deviation of the 55 neck ofthe tube must be performed very ac- Here the center point error takes curately.
  • the production of the tubes in machines is very difiicult if the tubes do not have straight axes, the application of the plates to a common foot of thesystem is dimcult, etc.
  • the subject matter of the invention refers to t television tubes, which are free from the center point error, and which operate fundamentally with inclined entry of the ray into the plate space, but with the use of special arrangements for the preliminary electrical deflection of the iii ray are so constructed that the axis of the tube remains straight and the entire system central. Additional subject matter of the invention beyond this is constituted by tubes, in which the dimensioning ofthe systems for bending the ray 5 is so performed that one single potential, and accordingly one single lead, is suificient for reliably producing the correct passage of the ray in all bending fields.
  • FIG. 2 The illustration of a simple embodiment of the invention is given in Fig. 2.
  • This system is straight-sighted, but displaced parallel to itself.
  • the ray leaves the anode diaphragm i vertically to the plane of the anode. Its normal path would be the axis 2 of .the tube to the screen 3, which it would strike at its actual center point i.
  • peculiarly constructed box system 5, 6 consisting of two angles.
  • the angle 5 of this system is connected up with the same lead as the anode, i. e., iii-practice to earth.
  • the lead is designated 'i,.and'the connection between 5 and l is shown in rage.
  • the angle 6 of the box system is situatedion a .bar 8, which possesses a negative potential as compared with the anode bar 71.
  • the ray will be deflected in space towards the undisturbed axis 2 to the extent of the angle a,
  • the deflection (sis of such extent that the ray would now just strike the lower right hand edge 4% t of the image if no additibnal forces were to act on the same.
  • H of which a frontalview at A-B is shown in Fig. 4.-
  • the plate M as usual, is
  • the plate I I possesses the potential of the anode bar I. It is accordingly necessary at the plate In, which is situated opposite thereto, to apply m turn a potential 'which is negative in relation to the anode, so that the ray will be bent back into its old axial direction It and, although with a certain displacement parallel to itself, will again approach the center point of the luminous screen.
  • the deflection sensitivities of the particular co-ordinates of the box system 5, 8 and the main deflecting system l0, II, or l5, ii are selected to be equal to each other.
  • the plate I0 may be connected with the bar 8 in direct fashion, and it is accomplished automatically that the ray again returns to the correct axial position. If the potential at 8 is varied, viz., proceeding from earth potential to a value of approximately 200 volts, there is accordingly not to be observed on the stationary image point 4 anything beyond a slight displacement amounting to perhaps 5-6 mm. in the direction of the one corner of the image.
  • Fig. 3 the main model of the tube, followed by a cross-section through a first box system with the plates 2 and 3.
  • the plate 3 is connected with the anode potential bar 4, and the plate 2 on the other hand with a bar having the bending potential I, i. e., with a potential of, for example, 100 volts, which is somewhat negative as compared with the anode and otherwise is capable of regulation.
  • the box condensers Owing to the diflerent distances. of the deflecting plates from the anode in the case of series connected condensers, the box condensers must also be spaced differently in the two-co-ordinates, i. e., their cross-sections are not squares, but right angles. Details of this nature, however, do not vary in any way the basic idea of the invention as described, this also apDLVing to an equal extent to the fact that in complicated fashion it is naturally also possible to employ bending systems of diiferent sensitivities it on the other hand for this purpose a corresponding number of diflerent D. C. bending potentials are generated and supthe image co-ordinates and arranged either inplied.
  • Braun tube for television and the like purposes comprising a straight evacuatedenvelope, a gas-filling inside said envelope, a cathode and an anode arranged in operative relationship thereto for producing a cathode ray, means for concentrating the cathode ray, means for controlling the intensity of the cathode ray, a picture receiving screen, scanning means comprising two pairs of deflecting plates for deflecting to a varying degree the cathode ray in two directions vertical to each other for scanning said picture receiving screen, further deflecting means of constant intensity being independent of said deflecting plates and being mounted between said anode and said deflecting plates for causing the my to enter the space between said deflecting plates under an angle to said deflecting Plates, and still further deflecting means causing the ray to prohceed into said picture receiving screen in its original direction after having passed said deflecting plates sytems when said scanning means are out of their operative condition.
  • Braun tube fortelevision and the like purposes comprising a straight evacuated envelope, a gas-filling inside'said envelope, a cathode and an anode arranged in operative relationship thereto for producing a cathode ray, means for concentrating the cathode ray, means for controlling the intensity of the cathode ray, a picture receiving screen, two pairs of deflecting plates for deflecting the cathode ray in two directions vertical to each other for scanning said picture receiving screen, two further plates mounted at right angles to each other between said anode and the first said deflecting plates, and means for connecting one plate of each or said further deflecting plates systems with one plate of one of the first said deflecting plates systems.

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
US680583A 1932-07-20 1933-07-15 Cathode ray tube Expired - Lifetime US2053537A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER85455D DE765498C (de) 1932-07-20 1932-07-20 Gasgefuellte oder Gasreste enthaltende Braunsche Roehre mit elektrostatischem Ablenkorgan fuer die Ablenkung des Kathodenstrahls in wenigstens einer Koordinate
GB20333/33A GB427703A (en) 1932-07-20 1933-07-19 Cathode ray tube

Publications (1)

Publication Number Publication Date
US2053537A true US2053537A (en) 1936-09-08

Family

ID=32045959

Family Applications (2)

Application Number Title Priority Date Filing Date
US680583A Expired - Lifetime US2053537A (en) 1932-07-20 1933-07-15 Cathode ray tube
US89446A Expired - Lifetime US2118867A (en) 1932-07-20 1936-07-07 Television arrangement

Family Applications After (1)

Application Number Title Priority Date Filing Date
US89446A Expired - Lifetime US2118867A (en) 1932-07-20 1936-07-07 Television arrangement

Country Status (4)

Country Link
US (2) US2053537A (de)
DE (1) DE765498C (de)
FR (1) FR758616A (de)
GB (1) GB427703A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425682A (en) * 1943-08-19 1947-08-12 Cathodeon Ltd Cathode-ray tube with shielded deflecting plates
US2439504A (en) * 1944-03-09 1948-04-13 Emi Ltd Flat beam cathode-ray tube and circuit
US2482151A (en) * 1944-08-18 1949-09-20 Philips Lab Inc Cathode-ray projection tube
US2696571A (en) * 1950-02-10 1954-12-07 Rca Corp Color kinescope
US2728027A (en) * 1952-08-12 1955-12-20 Rca Corp Cathode ray deflection systems
US2837691A (en) * 1955-08-24 1958-06-03 Kaiser Ind Corp Electronic device
US2879443A (en) * 1955-12-15 1959-03-24 Kaiser Ind Corp Electronic device
US2879421A (en) * 1956-01-30 1959-03-24 Sylvania Electric Prod Cathode ray tube electrode structure
US5438203A (en) * 1994-06-10 1995-08-01 Nissin Electric Company System and method for unipolar magnetic scanning of heavy ion beams
US5481116A (en) * 1994-06-10 1996-01-02 Ibis Technology Corporation Magnetic system and method for uniformly scanning heavy ion beams
US5672879A (en) * 1995-06-12 1997-09-30 Glavish; Hilton F. System and method for producing superimposed static and time-varying magnetic fields
US6661016B2 (en) 2000-06-22 2003-12-09 Proteros, Llc Ion implantation uniformity correction using beam current control
US20040084636A1 (en) * 2000-03-27 2004-05-06 Berrian Donald W. System and method for implanting a wafer with an ion beam

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764441C (de) * 1937-04-17 1952-12-15 Telefunken Gmbh Kathodenstrahlroehre, insbesondere fuer Fernsehzwecke, mit mindestens einem magnetischen Ablenkfeld
US2461728A (en) * 1945-06-25 1949-02-15 Sylvania Electric Prod Electron discharge device
NL144040B (nl) * 1948-12-24 Seasafe Transport Ab Staafvormige inrichting voor het spannen van een kabel of dergelijke.
US2728854A (en) * 1950-04-11 1955-12-27 Karl F Ross Cathode ray harmonic filter
NL171800B (nl) * 1952-08-13 Shell Int Research Werkwijze ter bereiding van lineaire alfa-olefinen door etheen te oligomeriseren.
US2880341A (en) * 1955-03-14 1959-03-31 Kaiser Ind Corp Facsimile tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB271131A (en) * 1926-02-09 1927-05-09 Reginald Stanley Clay Improvements in television and like apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425682A (en) * 1943-08-19 1947-08-12 Cathodeon Ltd Cathode-ray tube with shielded deflecting plates
US2439504A (en) * 1944-03-09 1948-04-13 Emi Ltd Flat beam cathode-ray tube and circuit
US2482151A (en) * 1944-08-18 1949-09-20 Philips Lab Inc Cathode-ray projection tube
US2696571A (en) * 1950-02-10 1954-12-07 Rca Corp Color kinescope
US2728027A (en) * 1952-08-12 1955-12-20 Rca Corp Cathode ray deflection systems
US2837691A (en) * 1955-08-24 1958-06-03 Kaiser Ind Corp Electronic device
US2879443A (en) * 1955-12-15 1959-03-24 Kaiser Ind Corp Electronic device
US2879421A (en) * 1956-01-30 1959-03-24 Sylvania Electric Prod Cathode ray tube electrode structure
US5438203A (en) * 1994-06-10 1995-08-01 Nissin Electric Company System and method for unipolar magnetic scanning of heavy ion beams
US5481116A (en) * 1994-06-10 1996-01-02 Ibis Technology Corporation Magnetic system and method for uniformly scanning heavy ion beams
US5672879A (en) * 1995-06-12 1997-09-30 Glavish; Hilton F. System and method for producing superimposed static and time-varying magnetic fields
US20040084636A1 (en) * 2000-03-27 2004-05-06 Berrian Donald W. System and method for implanting a wafer with an ion beam
US6833552B2 (en) 2000-03-27 2004-12-21 Applied Materials, Inc. System and method for implanting a wafer with an ion beam
US6661016B2 (en) 2000-06-22 2003-12-09 Proteros, Llc Ion implantation uniformity correction using beam current control

Also Published As

Publication number Publication date
DE765498C (de) 1955-08-04
GB427703A (en) 1935-04-23
FR758616A (fr) 1934-01-20
US2118867A (en) 1938-05-31

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