US2161316A - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
US2161316A
US2161316A US63564A US6356436A US2161316A US 2161316 A US2161316 A US 2161316A US 63564 A US63564 A US 63564A US 6356436 A US6356436 A US 6356436A US 2161316 A US2161316 A US 2161316A
Authority
US
United States
Prior art keywords
cathode ray
concentration
voltage
ray
ray tube
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 - Lifetime
Application number
US63564A
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English (en)
Inventor
Rogowski Walter
Becker Franz August
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz 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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of US2161316A publication Critical patent/US2161316A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
    • 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
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation

Definitions

  • the concentration need not be 5 varied during operation and therefore may be adjusted to a predetermined efiiciency, no matter whether magnetic or electric influences serve to produce it.
  • electrostatic concentration it is possible to provide for such constant efiiciency even if the voltage required for the concentration is given a constant rate with respect to the anode-cathode voltage. Constancy of concentration is desirable especially in the case of sealed ofi tubes.
  • the cathode ray in its turn as regards its strength depends upon the voltage controlling it, it is within the meaning of the invention also to cause such additional concentration to depend upon this control voltage.
  • the control voltage may be caused to influence the additional concentration either directly or over amplifying means.
  • This tube whose cathode is designated I and whose anode is denoted by 2, contains a well known system of three electrodes 3, 4, 6 which are in the shape of annular diaphragms. This system serves to concentrate the cathode ray emanating from I and has therefore been designated as an electron-optical condensing lens.
  • a voltage the socalled lens voltage
  • the concentration eiiected by the electrodes 3, 3, 6 is thus independent of the cathode ray.
  • 9 denotes the current source determining the control volt- 10 age for the cathode ray.
  • electrode 5 In addition to the electrodes 3, 4, 6 and electrode 5 is arranged which like these is in the shape of an annular diaphragm. By a resistance 1 a drop of potential is produced which acts on the elec- 15 trade 5.
  • the concentration due to electrode 5 hence depends upon the cathode ray in such a. manner as to regulate the concentration thereof should this concentration tend to vary. In this way, whenever the cathode ray will increase in 20 intensity the concentrating or condensing action of the system 3, 4, 5, 6 shall increase likewise.
  • Resistance i may be regulable as shown.
  • An arrangement comprising a cathode ray 5 tube having an anode, a fluorescent screen, means for projecting a cathode ray on said screen, means for varying the intensity of said ray in accordance with a control voltage and means for varying the concentration of said ray on said screen in re- 30 sponse to and in the same sense as variations in the anode current of said tube.
  • An arrangement comprising a cathode ray tube having an anode, a fluorescent screen, means for projecting a cathode ray on said screen, means 5 for varying the intensity of said ray in accordance with a control voltage, means for concentrating said cathode ray on said screen independently of the magnitude of said ray and means for varying the concentration of said ray on said 40 screen in response to and in the same sense as the anode current of said tube.
  • An arrangement comprising a cathode ray tube having an anode circuit, a fluorescent screen, means for projecting a cathode ray on said 5 screen, means for varying the intensity of said ray in accordance with a control voltage, a resistance in said anode circuit for producing a voltage drop under action of said control voltage and means for varying the concentration. of said 50 ray on said screen in response to variations in said voltage drop.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Electron Tubes For Measurement (AREA)
US63564A 1935-02-11 1936-02-12 Cathode ray tube Expired - Lifetime US2161316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE460477X 1912-09-30

Publications (1)

Publication Number Publication Date
US2161316A true US2161316A (en) 1939-06-06

Family

ID=6539731

Family Applications (1)

Application Number Title Priority Date Filing Date
US63564A Expired - Lifetime US2161316A (en) 1935-02-11 1936-02-12 Cathode ray tube

Country Status (4)

Country Link
US (1) US2161316A (de)
AT (1) AT148930B (de)
FR (2) FR460477A (de)
GB (1) GB460477A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420514A (en) * 1944-05-25 1947-05-13 Gen Electric Electron lens structure
US2568112A (en) * 1946-12-24 1951-09-18 Csf Voltage divider for variable magnification electron microscopes
US2632115A (en) * 1947-06-21 1953-03-17 Csf Focusing device for electron microscopes
US2658164A (en) * 1950-11-03 1953-11-03 Du Mont Allen B Lab Inc Focus circuit for cathode-ray tubes
US2700743A (en) * 1951-10-05 1955-01-25 John H Park Intensification of an electron beam from cold-cathode discharge
US2983842A (en) * 1959-06-23 1961-05-09 Zenith Radio Corp Electrode system
US2997615A (en) * 1959-04-10 1961-08-22 Zenith Radio Corp Brillouin flow gun
US3863091A (en) * 1972-12-29 1975-01-28 Hitachi Ltd Electron gun assembly with improved unitary lens system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE898456C (de) * 1937-12-18 1953-11-30 Fernseh Gmbh Anordnung zur selbsttaetigen Bildhelligkeitsregelung in Schaltungen mit Kathodenstrahlroehren fuer Bildwiedergabe, insbesondere Fernsehuebertragungs-Einrichtungen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420514A (en) * 1944-05-25 1947-05-13 Gen Electric Electron lens structure
US2568112A (en) * 1946-12-24 1951-09-18 Csf Voltage divider for variable magnification electron microscopes
US2632115A (en) * 1947-06-21 1953-03-17 Csf Focusing device for electron microscopes
US2658164A (en) * 1950-11-03 1953-11-03 Du Mont Allen B Lab Inc Focus circuit for cathode-ray tubes
US2700743A (en) * 1951-10-05 1955-01-25 John H Park Intensification of an electron beam from cold-cathode discharge
US2997615A (en) * 1959-04-10 1961-08-22 Zenith Radio Corp Brillouin flow gun
US2983842A (en) * 1959-06-23 1961-05-09 Zenith Radio Corp Electrode system
US3863091A (en) * 1972-12-29 1975-01-28 Hitachi Ltd Electron gun assembly with improved unitary lens system

Also Published As

Publication number Publication date
AT148930B (de) 1937-03-10
GB460477A (en) 1937-01-28
FR801794A (fr) 1936-08-17
FR460477A (fr) 1913-12-03

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