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GB434868A - Cathode-ray tubes for the production of pictures in natural colours, particularly for television and like systems - Google Patents

Cathode-ray tubes for the production of pictures in natural colours, particularly for television and like systems

Info

Publication number
GB434868A
GB434868A GB3857/35A GB385735A GB434868A GB 434868 A GB434868 A GB 434868A GB 3857/35 A GB3857/35 A GB 3857/35A GB 385735 A GB385735 A GB 385735A GB 434868 A GB434868 A GB 434868A
Authority
GB
United Kingdom
Prior art keywords
streaks
colour
width
television
scanning strip
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
GB3857/35A
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 Fernseh GmbH filed Critical Fernseh GmbH
Publication of GB434868A publication Critical patent/GB434868A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

434,868. Colour television ; cathoderay tubes. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. March 6, 1934, No. 3857/35. Convention date, March 6, 1933. Divided out of 432,989. Drawings to Specification. [Classes 39 (i) and 40 (iii)] For colour-television or the like, a cathoderay tube comprises a screen provided with a plurality of series of streaks, each series consisting of two or more adjacent and parallel streaks of materials fluorescing in different colours, and the electron beam is deflected to move longitudinally of the streaks to produce traversal of a scanning strip and to move laterally of the streaks to excite a particular colour. The width of each streak is one-third that of the scanning strip and is equal to the width of the fluorescent spot. A photo-electric cell giving progressively greater electrical response from the blue to the red end of the spectrum may be used at the transmitter. Further, the fluorescent spot may traverse portions of two streaks to give a mixed colour. In another form, the width of the fluorescent spot may be the same as that of the scanning strip and the electron beam is varied in intensity across its width by means of a divided control electrode to produce the requisite colours. In a further form, the spot is adapted to move at right angles to the streaks to form the scanning strip, and hovers over those streaks which are to be excited and passes more rapidly over the others. The intensity control of the beam may be effected in the neighbourhood of the cathode and the coloursensitive control may be effected by the normal deflecting plates. The screen may be provided with fluorescent streaks arranged adjacent streaks which do not fluoresce as stated in Specification 425,267. In another form, the screen is adapted to produce white light and is associated with colour filters arranged in striplike formation perpendicular or parallel to the scanning strips.
GB3857/35A 1933-03-06 1934-03-06 Cathode-ray tubes for the production of pictures in natural colours, particularly for television and like systems Expired GB434868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE434868X 1933-03-06

Publications (1)

Publication Number Publication Date
GB434868A true GB434868A (en) 1935-09-06

Family

ID=6506690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3857/35A Expired GB434868A (en) 1933-03-06 1934-03-06 Cathode-ray tubes for the production of pictures in natural colours, particularly for television and like systems

Country Status (1)

Country Link
GB (1) GB434868A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452293A (en) * 1945-01-15 1948-10-26 Forest Lee De Color television system
US2479517A (en) * 1946-06-08 1949-08-16 Roy E Schensted Color television apparatus
US2508267A (en) * 1945-10-26 1950-05-16 Du Mont Allen B Lab Inc Color television
US2532511A (en) * 1946-11-16 1950-12-05 Okolicsanyi Ferene Television
DE752504C (en) * 1941-02-13 1954-11-15 Opta Radio A G Fluorescent screen for cathode ray tubes
DE1036916B (en) * 1955-01-13 1958-08-21 Sylvania Thorn Colour Televisi Color television system
DE1118821B (en) * 1956-07-19 1961-12-07 Emi Ltd Color television receiver
EP0034302A2 (en) * 1980-02-16 1981-08-26 International Standard Electric Corporation Colour picture tube without shadow-mask and with only one electron gun
EP0133360A2 (en) * 1983-08-05 1985-02-20 English Electric Valve Company Limited Display arrangements
EP0133784A2 (en) * 1983-08-05 1985-03-06 English Electric Valve Company Limited Display arrangements

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752504C (en) * 1941-02-13 1954-11-15 Opta Radio A G Fluorescent screen for cathode ray tubes
US2452293A (en) * 1945-01-15 1948-10-26 Forest Lee De Color television system
US2508267A (en) * 1945-10-26 1950-05-16 Du Mont Allen B Lab Inc Color television
US2479517A (en) * 1946-06-08 1949-08-16 Roy E Schensted Color television apparatus
US2532511A (en) * 1946-11-16 1950-12-05 Okolicsanyi Ferene Television
DE1036916B (en) * 1955-01-13 1958-08-21 Sylvania Thorn Colour Televisi Color television system
DE1118821B (en) * 1956-07-19 1961-12-07 Emi Ltd Color television receiver
EP0034302A2 (en) * 1980-02-16 1981-08-26 International Standard Electric Corporation Colour picture tube without shadow-mask and with only one electron gun
EP0034302A3 (en) * 1980-02-16 1982-05-12 International Standard Electric Corporation Colour picture tube without shadow-mask and with only one electron gun
EP0133360A2 (en) * 1983-08-05 1985-02-20 English Electric Valve Company Limited Display arrangements
EP0133784A2 (en) * 1983-08-05 1985-03-06 English Electric Valve Company Limited Display arrangements
GB2144576A (en) * 1983-08-05 1985-03-06 English Electric Valve Co Ltd Display arrangements
US4695764A (en) * 1983-08-05 1987-09-22 English Electric Valve Company Limited Display arrangements
EP0133784A3 (en) * 1983-08-05 1989-04-26 English Electric Valve Company Limited Display arrangements
EP0133360A3 (en) * 1983-08-05 1989-04-26 English Electric Valve Company Limited Display arrangements

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