GB1035027A - Colour cathode ray tubes and systems - Google Patents

Colour cathode ray tubes and systems

Info

Publication number
GB1035027A
GB1035027A GB1031866A GB1031866A GB1035027A GB 1035027 A GB1035027 A GB 1035027A GB 1031866 A GB1031866 A GB 1031866A GB 1031866 A GB1031866 A GB 1031866A GB 1035027 A GB1035027 A GB 1035027A
Authority
GB
United Kingdom
Prior art keywords
cathode
dynodes
colour
grids
modulated
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
GB1031866A
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
Publication of GB1035027A publication Critical patent/GB1035027A/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
    • H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/22—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information
    • H04N9/24—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information using means, integral with, or external to, the tube, for producing signal indicating instantaneous beam position

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Color Television Systems (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

1,035,027. Colour television tubes. D. M. GOODMAN. Dec. 28, 1962, No. 10318/66. Divided out of 1,035,026. Heading H1D. [Also in Division H4] In a beam-indexing colour cathode-ray tube system, the multi-strip phosphor screen, when scanned, produces a plurality of different types of electro-magnetic index signals, e.g. U.V. light and X-rays of different wavelengths as described in Specification 1,035,026. The index signals, one type for each colour, are detected, filtered and transmitted, e.g. by light pipes 174, 176, 178, to respective photocathodes 208, 206, 204 to produce pulsed electron streams which are modulated in accordance with the corresponding video signals applied to grids 194, 192, 190. The modulated electron streams are amplified by dynodes 200, 196 and received by an anode 198 connected to the cathode-ray tube gun cathode 218 by a coaxial transmission line terminated by a resistance 212 between the cathode and grid 220, to produce a modulated electron beam 114. The photo-cathodes and corresponding grids, instead of being in a common envelope, may be in individual envelopes each provided with dynodes and an anode connected to the cathoderay tube gun, and possibly also to vernier deflection or beam-shaping plates 214 for additional modulation and control, Fig. 5 (not shown). Alternatively, the photo-cathodes, grids and dynodes may all be arranged in the cathode-ray tube envelope as indicated at 230, the coaxial transmission line and conventional electron gun being omitted, and anode 198 being replaced by a secondary emissive electrode from which the modulated electron beam is generated directly. Index signal detectors and light pipes may also be arranged within the envelope, Fig. 9 (not shown).
GB1031866A 1962-12-28 1962-12-28 Colour cathode ray tubes and systems Expired GB1035027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4887562A GB1035026A (en) 1962-12-28 1962-12-28 Wide band and color cathode ray tubes and systems

Publications (1)

Publication Number Publication Date
GB1035027A true GB1035027A (en) 1966-07-06

Family

ID=10450266

Family Applications (4)

Application Number Title Priority Date Filing Date
GB1174166A Expired GB1035029A (en) 1962-12-28 1962-12-28 Wide band and colour cathode ray tubes and systems
GB4887562A Expired GB1035026A (en) 1959-03-20 1962-12-28 Wide band and color cathode ray tubes and systems
GB1031866A Expired GB1035027A (en) 1962-12-28 1962-12-28 Colour cathode ray tubes and systems
GB1031966A Expired GB1035028A (en) 1962-12-28 1962-12-28 Wide band and colour cathode ray tubes and systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB1174166A Expired GB1035029A (en) 1962-12-28 1962-12-28 Wide band and colour cathode ray tubes and systems
GB4887562A Expired GB1035026A (en) 1959-03-20 1962-12-28 Wide band and color cathode ray tubes and systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1031966A Expired GB1035028A (en) 1962-12-28 1962-12-28 Wide band and colour cathode ray tubes and systems

Country Status (2)

Country Link
GB (4) GB1035029A (en)
NL (1) NL287070A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6534935B1 (en) * 1999-10-21 2003-03-18 Matsushita Electric Industrial Co., Ltd. Color CRT apparatus

Also Published As

Publication number Publication date
GB1035029A (en) 1966-07-06
GB1035028A (en) 1966-07-06
GB1035026A (en) 1966-07-06
NL287070A (en)

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