GB505632A - Improvements in and relating to cathode-ray tubes - Google Patents

Improvements in and relating to cathode-ray tubes

Info

Publication number
GB505632A
GB505632A GB31145/37A GB3114537A GB505632A GB 505632 A GB505632 A GB 505632A GB 31145/37 A GB31145/37 A GB 31145/37A GB 3114537 A GB3114537 A GB 3114537A GB 505632 A GB505632 A GB 505632A
Authority
GB
United Kingdom
Prior art keywords
anode
screen
cathode
tube
deflected
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
GB31145/37A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from US258488A external-priority patent/US2274586A/en
Publication of GB505632A publication Critical patent/GB505632A/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
    • H01J29/84Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
    • H01J29/845Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection by means of magnetic systems

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

505,632. Cathode-ray tubes. DEHN, F. B. (Hygrade Sylvania Corporation) Nov. 12, 1937, No. 31145. [Class 39 (i)] In a hard cathode-ray tube provided with a fluorescent screen, a thermionic cathode and magnetic deflecting means, the beam is directed away from the screen and a magnetic field, which extends at right-angles to the beam axis, causes deflection of the elec. tron beam, before or at the same time as it is magnetically deflected to scan the screen, so that it impinges upon the screen while the direction of the beam of negative ions remains substantially unaffected. The tube neck may be bent or may be inclined to the axis of the enlarged end of the tube so that the negative ions do not reach the screen. In one form, a cathode 22, Fig. 3, control grid 23 and anode 26 are mounted on a ceramic disc 25; a mica disc 27 may support the anode 26 from the tube neck. The anode is bent so that the electrons are deflected by the field through the aperture 36 and the ions are caught by the diaphragm 30. The final anode may consist of a graphite coating to which connection may be made through a contact 9, Fig. 4. Scanning may be effected by two magnets 45,46 and the magnet 46 is additionally excited by current supplied from a battery 48 through a variable resistance 49 to produce a deflection of the beam. In a further form, the beam is deflected within the second anode 26a, Fig. 5, which is registered with respect to the first anode 26 by glass beads 26b. The graphite coating on the end of the tube may be connected to the anode 26a. Specification 442,511 is referred to.
GB31145/37A 1936-08-14 1937-11-12 Improvements in and relating to cathode-ray tubes Expired GB505632A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US95970A US2211613A (en) 1936-08-14 1936-08-14 Cathode ray tube
US150034A US2211614A (en) 1936-08-14 1937-06-24 Cathode ray tube and the like
US258488A US2274586A (en) 1939-02-25 1939-02-25 Cathode ray tube

Publications (1)

Publication Number Publication Date
GB505632A true GB505632A (en) 1939-05-12

Family

ID=32074217

Family Applications (2)

Application Number Title Priority Date Filing Date
GB31145/37A Expired GB505632A (en) 1936-08-14 1937-11-12 Improvements in and relating to cathode-ray tubes
GB2670/40A Expired GB538684A (en) 1936-08-14 1940-02-12 Cathode ray tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2670/40A Expired GB538684A (en) 1936-08-14 1940-02-12 Cathode ray tubes

Country Status (2)

Country Link
US (2) US2211613A (en)
GB (2) GB505632A (en)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733365A (en) * 1956-01-31 hoagland
DE744709C (en) * 1940-12-06 1944-01-24 Aeg Braun tubes for operation with high voltages
US2629866A (en) * 1942-09-19 1953-02-24 Robert M Page Position indicating apparatus
US2440735A (en) * 1943-06-05 1948-05-04 Farnsworth Res Corp Electrooptical device
DE969907C (en) * 1944-07-15 1958-07-31 Fernseh Gmbh Arrangement for preventing positive ions from striking the cathode of cathode ray tubes
DE838168C (en) * 1944-12-28 1952-03-27 A. C. Cossor Limited, London cathode ray tube
BE470212A (en) * 1946-01-24
US2460609A (en) * 1946-01-24 1949-02-01 Rca Corp Beam aligning apparatus
US2563490A (en) * 1946-01-28 1951-08-07 Cathode arrangement fob television
US2456474A (en) * 1946-07-02 1948-12-14 Gen Electric Electric discharge device
US2531050A (en) * 1946-11-30 1950-11-21 Sylvania Electric Prod Ion trap
US2496127A (en) * 1947-02-05 1950-01-31 Rca Corp Electron gun for cathode-ray tubes
US2555850A (en) * 1948-01-28 1951-06-05 Nicholas D Glyptis Ion trap
US2575067A (en) * 1948-05-13 1951-11-13 Clarostat Mfg Co Inc Ion trap
BE492805A (en) * 1948-12-21
US2522872A (en) * 1949-01-10 1950-09-19 Heppner Mfg Company Device for controlling the path of travel of electrons in cathoderay tubes
US2539156A (en) * 1949-01-19 1951-01-23 Tele Tone Radio Corp Ion trap magnet
US2552341A (en) * 1949-02-03 1951-05-08 Clarostat Mfg Co Inc Magnetic structure for use in ion-traps
US2499065A (en) * 1949-03-22 1950-02-28 Heppner Mfg Company Device for adjustably positioning spaced magnetic fields
US2553039A (en) * 1949-04-26 1951-05-15 Zenith Radio Corp Cathode-ray tube combined beam centering and deflection device
US2569517A (en) * 1949-09-09 1951-10-02 Du Mont Allen B Lab Inc Magnet for cathode-ray tube ion traps
US2553792A (en) * 1949-10-01 1951-05-22 Indiana Steel Products Co Ion trap and centering magnet assembly
US2549602A (en) * 1949-10-01 1951-04-17 Indiana Steel Products Co Applicator for ion traps
US2580355A (en) * 1949-10-08 1951-12-25 Du Mont Allen B Lab Inc Ion trap magnet
US2552342A (en) * 1949-11-17 1951-05-08 Clarostat Mfg Co Inc Magnetic structure for use in ion-traps
NL157537B (en) * 1949-11-25 Calsilox Sa METHOD AND DEVICE FOR FIXING REINFORCEMENT IN A FORM.
US2744208A (en) * 1949-12-02 1956-05-01 Rca Corp Ion trap electron gun
US2564737A (en) * 1949-12-23 1951-08-21 Rauland Corp Cathode-ray tube
US2544898A (en) * 1949-12-31 1951-03-13 Guardian Electric Mfg Co Centering device for beams of cathode-ray tubes
NL85805C (en) * 1950-04-12
US2596508A (en) * 1950-04-19 1952-05-13 Rauland Corp Electron gun for cathode-ray tubes
BE502947A (en) * 1950-05-02
US2565533A (en) * 1950-05-19 1951-08-28 Rauland Corp Cathode-ray tube
US2562242A (en) * 1950-06-06 1951-07-31 Du Mont Allen B Lab Inc Split anode for bent gun ion trap cathode-ray tubes
US2562236A (en) * 1950-06-06 1951-07-31 Du Mont Allen B Lab Inc Support strap for cathode-ray tube gun parts
US2562243A (en) * 1950-06-06 1951-07-31 Du Mont Allen B Lab Inc Electron gun structure
US2542924A (en) * 1950-06-21 1951-02-20 Myron R Heppner Ion trap
US2695975A (en) * 1950-09-23 1954-11-30 Du Mont Allen B Lab Inc Television deflection circuit
BE508323A (en) * 1951-01-11
US2718610A (en) * 1951-02-01 1955-09-20 Guenther H Krawinkel Acceleration indicating system
US2597465A (en) * 1951-03-23 1952-05-20 Emmer Milton Beam deflector for cathode-ray tubes
US2760098A (en) * 1951-05-08 1956-08-21 Rca Corp Electrostatic focused gun for cathode ray tube
US2719243A (en) * 1951-07-03 1955-09-27 Du Mont Allen B Lab Inc Electrostatic electron lens
US2603550A (en) * 1951-07-12 1952-07-15 Philco Corp Method of aligning cathode-ray tube assemblies
US2824987A (en) * 1952-05-12 1958-02-25 Leitz Ernst Gmbh Electron optical elements and systems equivalent to light optical prisms for charge carriers in discharge vessels
US2707246A (en) * 1952-09-04 1955-04-26 Gen Electric Combination focusing-ion trap structures for cathode-ray tubes
US3036237A (en) * 1953-03-23 1962-05-22 Varian Associates Klystron electron tube apparatus
NL108194C (en) * 1953-06-25
US2937315A (en) * 1955-08-01 1960-05-17 Kaiser Ind Corp Electronic device
US2993141A (en) * 1958-02-10 1961-07-18 Richard F Post Producing bunched electron beams
US3226587A (en) * 1960-01-28 1965-12-28 Rca Corp Cathode ray tube and magnetic deflection means therefor
US3096438A (en) * 1961-04-24 1963-07-02 Rodger V Neidigh Apparatus for the mass analysis of plasmas on a continuous basis
US3087056A (en) * 1961-07-14 1963-04-23 Joseph J Murray High voltage electrodes
US4739218A (en) * 1985-04-18 1988-04-19 Schwartz Samuel A Short cathode ray tube
US6617779B1 (en) 2001-10-04 2003-09-09 Samuel A. Schwartz Multi-bend cathode ray tube

Also Published As

Publication number Publication date
US2211613A (en) 1940-08-13
US2211614A (en) 1940-08-13
GB538684A (en) 1941-08-13

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