US2532747A - Circuit arrangement comprising a cathode-ray tube - Google Patents

Circuit arrangement comprising a cathode-ray tube Download PDF

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Publication number
US2532747A
US2532747A US75916A US7591649A US2532747A US 2532747 A US2532747 A US 2532747A US 75916 A US75916 A US 75916A US 7591649 A US7591649 A US 7591649A US 2532747 A US2532747 A US 2532747A
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US
United States
Prior art keywords
electrode
deflecting
collecting
electrodes
cathode
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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 - Lifetime
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US75916A
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English (en)
Inventor
Zeger Van Gelder
Adrianus Johannes Wilhel Marie
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.)
Hartford National Bank and Trust Co
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Hartford National Bank and Trust Co
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 Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
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Publication of US2532747A publication Critical patent/US2532747A/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/045—Distributors with CRT
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting

Definitions

  • thecathode-ray tube comprises, in known mariner thelabove further collecting electrode, whichconsequently is struckiby the beam every time. between, the scanning of each pair of successive collecting electrodes of the group, the circuit arrangement according to the invention permits offobviating the above disadvantages.
  • The. cathode-ray tubel iir Fig. 1, i which comprises. means for producing a cathode-ray beam 2 u(shown idiagrammatically) contains deflectin platesi3 and l.
  • the tubefurthermore comprises agroupof collecting electrodes of which four, numbered- '5 to'8, are shown. .These electrodes, each ofuwhich is. provided with. its own voutput circuit, have arrangedbehind them a further collecting "electrodeizfl which. is, connected. by way ofg-a resistance lfl'to, a voltagexsource. The.
  • lefthand deflecting p1ate53 is connected througha resistance I l 1tov the positive terminal l2.,,of,-a battery; the other end of :which is earthed.
  • the terminal voltage of this battery is chosen to be.
  • the beam precisely, strikes the left-hand, collecting electrode 5 of thegrou if the right-hand deflecting plate 4 hasearth potential.
  • the beam will move to the right with a substantially constantangular speed during the time thesawtooth voltage increases linearly or substantially linearly.
  • the beam consequently moves away from the electrode 5, passes through the first-aperture 15 on to the further collecting electrode 9, then strikes the next following. collee-ting! electrode. 6 of the group, subsequently again impinges on the collecting electrode 9,'and so forth.
  • the time during which the beam. strikesone of the collecting electro'desfi to'8j is usedjfor example, for communication purposes, the time during which the beam falls between the collect- 'ing electrodes is to be looked upon as a loss.
  • the further electrode is coupled by way'of acondenser; IE to the deflecting plate 3.
  • Fig. 2 the deflection angle a. of the beam, measured from the left-hand side of the electrode 5 in Fig. 1, is plotted as a function of the time t.
  • the positions of the electrodes 5 to 8 cor responding to definite deflection intervals are plotted in Fig. 2 along the ordinate in thicl; lines.
  • the deflecting voltage produced by the generator [4, which increases substantially linearly and consequently corresponds to a substantially linear relationship between the deflection u. and the time t, is indicated by a straight line ll.
  • the beam does not strike the collecting electrode 8 at an instant is, as would be the case if the coupling were not provided, but at a prior instant t5 and then during impingement on the electrode 6 moves again with a substantially constant angular speed.
  • the ineflective period from 151 to t2 is thus materially restricted and reduced to the period from 151 to its.
  • the further collecting electrode is is arranged in front of the group of collecting electrodes 20, 2
  • a similar effect may be achieved by realizing the further collecting electrode Q or E9 of the circuit-arrangement shown in Fig. 1 or 3 respectively as a secondary emission electrode. Owing to the resulting secondary emission of electrons, with a secondary emission factor 5 1, the voltage across the supply resistance I0 or 25 respectively will increase during impingement of the beam on this electrode. This increase in voltage is passed on to the deflecting plate and shows itself as a decrease of the total effective deflecting voltage with the result that the speed of the beam is reduced.
  • An electrical circuit arrangement comprising a discharge tube having a source of an electron beam, a plurality of collecting electrodes spaced apart and spaced from said source, means to deflect said beam and an electrode member having conductive portions arranged in the path of said beam between the spacings of said collecting electrodes, means to apply a signal of given phase to said deflecting means to deflect said beam in a given direction and with a given velocity thereby to cause said beam to impinge successively on said collecting electrodes and said conductive portions, and means to accelerate the deflection of said beam between adjacent of said collecting electrodes comprising an impedance element intercoupling said electrode member and said deflecting means and applying an auxiliary signal voltage to said deflecting means in the same phase as said given phase.
  • An electrical circuit arrangement comprising a discharge tube having a source of an electron beam, a plurality of collecting electrodes spaced apart and spaced from said source, a pair of deflecting electrodes arranged to deflect said beam and an electrode member having conductive portions arranged in the path of said beam between the spacing of said collecting electrodes, means to apply a signal of given phase to said deflecting electrodes to deflect said beam in a given direction and with a given velocity thereby to cause said beam to impinge successively on said collecting electrodes and said conductive portions, and means to accelerate the deflection of said beam between adjacent of said collecting elec trodes comprising an impedance element intercoupling said electrode member and one of said deflecting electrodes and applying an auxiliary signal voltage to said one deflecting electrode in the same phase as said given phase.
  • An electrical circuit arrangement comprising a discharge tube having a source of an electron beam, a plurality of collecting electrodes spaced apart and spaced from said source, a pair of deflecting electrodes arranged to deflect said beam an an electrode member having conductive portions arranged in the path of said beam between the spacing of said collecting electrodes, means to apply a signal voltage varying substantially linearly with time and having a given phase to said deflecting electrodes to deflect said beam in a given direction and with a given velocity thereby to cause said beam to impinge successively on said collecting electrode and said conductive portions, and means to accelerate the deflection of said beam between adjacent of said collecting electrodes comprising a capacitive ele-:- ment intercoupling said electrode member andone of said deflecting electrodes andapplying an auxiliary signal voltage to said one deflecting electrode in the same phase as said given phase.
  • An electrical circuit arrangement comprising a discharge tube having a source of an electron beam, a plurality of collecting electrodes spaced apart and spaced from said source, means to deflect said beam and an electrode member having conductive portions comprising secondary electron emissive surfaces arranged in the path of said beam between the spacing of said collecting electrodes, means to apply a signal of given phase to said deflecting means to deflect said beam in a given direction and with a given velocity thereby to cause said beam to impinge successively on said collecting electrodes and said conductive portions, and means to accelerate the deflection of said beam between adjacent of said collecting electrodes comprising an impedance .6 element intercoupling said electrode member and said deflecting means and applying an auxiliary signal voltage to said deflecting means in the same phase as said given phase.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Electron Beam Exposure (AREA)
  • Microwave Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
US75916A 1948-03-16 1949-02-11 Circuit arrangement comprising a cathode-ray tube Expired - Lifetime US2532747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL271246X 1948-03-16

Publications (1)

Publication Number Publication Date
US2532747A true US2532747A (en) 1950-12-05

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ID=19781943

Family Applications (1)

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US75916A Expired - Lifetime US2532747A (en) 1948-03-16 1949-02-11 Circuit arrangement comprising a cathode-ray tube

Country Status (7)

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US (1) US2532747A (id)
BE (1) BE487891A (id)
CH (1) CH271246A (id)
DE (1) DE809683C (id)
FR (1) FR983149A (id)
GB (1) GB676968A (id)
NL (1) NL80421C (id)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588287A (en) * 1949-06-29 1952-03-04 Tesla Nat Corp Impulse metering device
US2617075A (en) * 1949-04-09 1952-11-04 Hartford Nat Bank & Trust Co Electric discharge tube comprising means for producing and deflecting an electron beam
US2617074A (en) * 1950-02-14 1952-11-04 Hartford Nat Bank & Trust Co Multianode cathode-ray tube circuit having a rapid flyback action
US2657330A (en) * 1949-07-29 1953-10-27 Hartford Nat Bank & Trust Co Electric circuit comprising a cathode-ray tube
US2668927A (en) * 1951-11-20 1954-02-09 Bell Telephone Labor Inc Electron discharge device
US2698399A (en) * 1951-07-11 1954-12-28 Burroughs Corp Magnetic deflection means for electron discharge devices
US2792522A (en) * 1953-09-18 1957-05-14 Westinghouse Electric Corp Color television tube
US2905854A (en) * 1955-06-06 1959-09-22 Hazeltine Research Inc Electron-discharge device
US3089977A (en) * 1959-04-13 1963-05-14 Charles R Moeller Electronic frequency multiplying device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE952118C (de) * 1951-07-19 1956-11-08 Lorenz C Ag Elektrische Steuereinrichtung fuer mehrere in einem Entladungsgefaess, erzeugte Elektronenbuendel
DE1026443B (de) * 1953-04-16 1958-03-20 Csf Elektronische Schaltroehre

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250528A (en) * 1939-02-11 1941-07-29 Bell Telephone Labor Inc Signal translating system and apparatus
US2417450A (en) * 1945-05-02 1947-03-18 Bell Telephone Labor Inc Electron discharge device
US2477008A (en) * 1945-08-01 1949-07-26 Rosen Leo Electrical apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250528A (en) * 1939-02-11 1941-07-29 Bell Telephone Labor Inc Signal translating system and apparatus
US2417450A (en) * 1945-05-02 1947-03-18 Bell Telephone Labor Inc Electron discharge device
US2477008A (en) * 1945-08-01 1949-07-26 Rosen Leo Electrical apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617075A (en) * 1949-04-09 1952-11-04 Hartford Nat Bank & Trust Co Electric discharge tube comprising means for producing and deflecting an electron beam
US2588287A (en) * 1949-06-29 1952-03-04 Tesla Nat Corp Impulse metering device
US2657330A (en) * 1949-07-29 1953-10-27 Hartford Nat Bank & Trust Co Electric circuit comprising a cathode-ray tube
US2617074A (en) * 1950-02-14 1952-11-04 Hartford Nat Bank & Trust Co Multianode cathode-ray tube circuit having a rapid flyback action
US2698399A (en) * 1951-07-11 1954-12-28 Burroughs Corp Magnetic deflection means for electron discharge devices
US2668927A (en) * 1951-11-20 1954-02-09 Bell Telephone Labor Inc Electron discharge device
US2792522A (en) * 1953-09-18 1957-05-14 Westinghouse Electric Corp Color television tube
US2905854A (en) * 1955-06-06 1959-09-22 Hazeltine Research Inc Electron-discharge device
US3089977A (en) * 1959-04-13 1963-05-14 Charles R Moeller Electronic frequency multiplying device

Also Published As

Publication number Publication date
FR983149A (fr) 1951-06-19
BE487891A (id)
NL80421C (id)
CH271246A (de) 1950-10-15
GB676968A (en) 1952-08-06
DE809683C (de) 1951-08-02

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