GB974304A - Cathode ray tube apparatus - Google Patents

Cathode ray tube apparatus

Info

Publication number
GB974304A
GB974304A GB4760/61A GB476061A GB974304A GB 974304 A GB974304 A GB 974304A GB 4760/61 A GB4760/61 A GB 4760/61A GB 476061 A GB476061 A GB 476061A GB 974304 A GB974304 A GB 974304A
Authority
GB
United Kingdom
Prior art keywords
conductive
tube
screen
decelerating field
conductive coating
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
GB4760/61A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB974304A publication Critical patent/GB974304A/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
    • 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
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

974,304. Cathode-ray tubes. RADIO CORPORATION OF AMERICA. Feb. 8, 1961 [March 17, 1960], No. 4760/61.Heading H1D. In a cathode-ray picture tube in which an electron beam is scanned over a screen, the total deflection being in excess of 110 degrees, radial deflection of the beam effected in a primary deflection zone 22, Fig. 1, is enhanced by an electrostatic beam-decelerating field set up between a conductive surface 30 spaced uniformly from the screen and a conductive layer 28 coextensive with the screen. As shown, the tube comprises a phosphor screen 26, Fig. 1, having a conductive coating 28 which is spaced from a conductive coating 30 on the funnel 18 by a resistive iron oxide coating 32. The electron beam 21 is deflected by a conventional magnetic yoke 24 and further radially deflected by a decelerating field established between coatings 28, 30. Suitable potentials are given. In Fig. 3, the decelerating field is established between grids 88, 92 connected to conductive coatings 62, 90 as shown. The grids 88, 92 may be concave towards the phosphor screen, Figs. 4-7 (not shown), for providing correction of pin-cushion distortion, or grid 92 may be omitted. In Fig. 8, four convex, conductive elements 124, connected to conductive coating 134, are provided in the tube to produce a preferred shaping of the decelerating field. Alternatively, the four sides of the funnel portion of the tube envelope may each be convex towards the interior, a conductive coating thereon replacing the elements 124, Figs. 12-15 (not shown). The tube neck may include more than one gun for colour television.
GB4760/61A 1960-03-17 1961-02-08 Cathode ray tube apparatus Expired GB974304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15705A US3185879A (en) 1960-03-17 1960-03-17 Cathode ray tube having deflection enhancement means

Publications (1)

Publication Number Publication Date
GB974304A true GB974304A (en) 1964-11-04

Family

ID=21773054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4760/61A Expired GB974304A (en) 1960-03-17 1961-02-08 Cathode ray tube apparatus

Country Status (4)

Country Link
US (1) US3185879A (en)
DE (1) DE1195800B (en)
GB (1) GB974304A (en)
NL (1) NL262474A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040509B1 (en) * 1970-01-30 1975-12-24
US4812708A (en) * 1985-01-29 1989-03-14 Rca Licensing Corp. Thin cathode-ray tube
AU4806300A (en) * 1999-04-30 2000-11-17 Sarnoff Corporation Space-saving cathode ray tube employing electrostatically amplified deflection
US6541902B1 (en) 1999-04-30 2003-04-01 Sarnoff Corporation Space-saving cathode ray tube
US6586870B1 (en) 1999-04-30 2003-07-01 Sarnoff Corporation Space-saving cathode ray tube employing magnetically amplified deflection
US6476545B1 (en) * 1999-04-30 2002-11-05 Sarnoff Corporation Asymmetric, gradient-potential, space-savings cathode ray tube
WO2001029870A1 (en) * 1999-10-21 2001-04-26 Sarnoff Corporation Bi-potential electrode space-saving cathode ray tube
US6686686B1 (en) 1999-10-21 2004-02-03 Sarnoff Corporation Bi-potential electrode space-saving cathode ray tube
CN1208806C (en) * 1999-10-21 2005-06-29 萨尔诺尔公司 Space-saving cathode ray tube
US6465944B1 (en) * 2000-05-26 2002-10-15 Sarnoff Corporation Space-saving cathode ray tube employing a six-pole neck coil
US6870331B2 (en) * 2000-05-31 2005-03-22 Sarnoff Corporation Space-saving cathode ray tube employing a non-self-converging deflection yoke

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409514A (en) * 1945-01-30 1946-10-15 Rca Corp Cathode-ray tube
NL176924B (en) * 1952-03-18 Colgate Palmolive Co HOLDER FILLED WITH PARTICULATE DETERGENT.
NL183551B (en) * 1953-12-12 Babcock & Wilcox Co PROCEDURE FOR MANUFACTURE OF A NUCLEAR FUEL TABLE.
US2899600A (en) * 1956-08-13 1959-08-11 Wtoth of screen
US2890379A (en) * 1956-09-18 1959-06-09 Chromatic Television Lab Inc Distortion correction in cathode-ray tubes
US2981864A (en) * 1958-06-26 1961-04-25 Sylvania Electric Prod Image display device

Also Published As

Publication number Publication date
NL262474A (en)
DE1195800B (en) 1965-07-01
US3185879A (en) 1965-05-25

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