GB627482A - Improvements in and relating to cathode-ray tubes - Google Patents

Improvements in and relating to cathode-ray tubes

Info

Publication number
GB627482A
GB627482A GB2075645A GB2075645A GB627482A GB 627482 A GB627482 A GB 627482A GB 2075645 A GB2075645 A GB 2075645A GB 2075645 A GB2075645 A GB 2075645A GB 627482 A GB627482 A GB 627482A
Authority
GB
United Kingdom
Prior art keywords
zone
ray
cathode
tube
polepieces
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
GB2075645A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2075645A priority Critical patent/GB627482A/en
Publication of GB627482A publication Critical patent/GB627482A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • 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
    • H01J29/465—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement for simultaneous focalisation and deflection of ray or beam
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

627,482. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., JESTY, L. C., and HENDERSON, J. R. Aug. 13, 1945, No. 20756. [Class 39 (i)] A deflecting electromagnet has one or more pairs of opposite inwardly projecting polepieces, the inner surfaces of which are close to, and have a shape which substantially follows that of, the envelope zone which flares outwardly towards the screen. The surfaces may be smooth or stepped, and the envelope may be such that the ray, when fully deflected, follows a path which conforms to, and grazes, the inner surface thereof, or is such that the ratio of the distance of the ray from the tube axis to the tube radius is constant throughout the zone. In one form, the magnetic yoke 14, Fig. 2, consists of stampings, which surround the flared zone of the tube; two pairs of polepieces 15, 16 are formed by the slots 17 within which are placed the four windings. The yoke may be shaped so that the thickness between its outer surface and the inner surfaces of the poles is the same throughout its length.
GB2075645A 1945-08-13 1945-08-13 Improvements in and relating to cathode-ray tubes Expired GB627482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2075645A GB627482A (en) 1945-08-13 1945-08-13 Improvements in and relating to cathode-ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2075645A GB627482A (en) 1945-08-13 1945-08-13 Improvements in and relating to cathode-ray tubes

Publications (1)

Publication Number Publication Date
GB627482A true GB627482A (en) 1949-08-10

Family

ID=10151122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2075645A Expired GB627482A (en) 1945-08-13 1945-08-13 Improvements in and relating to cathode-ray tubes

Country Status (1)

Country Link
GB (1) GB627482A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680204A (en) * 1950-11-30 1954-06-01 Rca Corp Gun structure
US2846606A (en) * 1952-06-05 1958-08-05 Philips Corp Television receiver
US3123747A (en) * 1964-03-03 Magnetizable core
EP0098529A2 (en) * 1982-07-07 1984-01-18 Alcatel N.V. Device for winding saddle coils

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123747A (en) * 1964-03-03 Magnetizable core
US2680204A (en) * 1950-11-30 1954-06-01 Rca Corp Gun structure
US2846606A (en) * 1952-06-05 1958-08-05 Philips Corp Television receiver
EP0098529A2 (en) * 1982-07-07 1984-01-18 Alcatel N.V. Device for winding saddle coils
EP0098529A3 (en) * 1982-07-07 1984-10-17 International Standard Electric Corporation Device for winding saddle coils

Similar Documents

Publication Publication Date Title
GB698005A (en) Improvements in or relating to electron discharge devices
GB745099A (en) Arrangement for magnetic concentration of an electron beam in a travelling wave tube
GB691717A (en) Coil arrangement for the magnetic deflecting of cathode ray-tubes, especially for television purposes
ES482953A1 (en) Deflection yoke with a magnet for reducing sensitivity of convergence to yoke position
GB761814A (en) Beam conveyance arrangement for a plurality of electron beams in a tri-colour kinescope
GB627482A (en) Improvements in and relating to cathode-ray tubes
GB520374A (en) Improvements in or relating to devices comprising a cathode ray tube with magnetic deflection
GB1137104A (en) Electromagnetic deflection yoke for cathode ray tubes
GB656521A (en) Improvements in or relating to electron velocity modulation devices
GB403671A (en) Improvements in or relating to cathode ray and like electric discharge devices
GB548147A (en) Improvements in or relating to cathode ray tubes
GB1394683A (en) Electromagnetic focusing and deflection assembly for cathode ray tubes
GB645756A (en) Improvements relating to electron discharge devices such as television transmission tubes
GB580634A (en) Improvements in electric circuit breakers
GB589135A (en) Improvements in cathode ray tubes
GB811736A (en) Improvements relating to the mounting of deflection coils and focusing units on cathode ray tubes
GB813238A (en) Deflecting coil arrangement for cathode ray tubes
GB397785A (en) Improvements in braun tubes
GB974153A (en) Improvements in or relating to travelling wave tubes
GB776515A (en) Improvements in or relating to ion trap arrangements
GB612906A (en) Improvements in or relating to magnetic deflecting means for cathode ray tubes
GB695607A (en) Improvements in or relating to electromagnetic electron beam deflection systems
CA455648A (en) Deflection coil and yoke for cathode ray tubes
GB656561A (en) Improvements in or relating to electron discharge devices
GB744127A (en) Improvements relating to circuit arrangements embodying cathode ray tubes