GB813954A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB813954A
GB813954A GB12245/57A GB1224557A GB813954A GB 813954 A GB813954 A GB 813954A GB 12245/57 A GB12245/57 A GB 12245/57A GB 1224557 A GB1224557 A GB 1224557A GB 813954 A GB813954 A GB 813954A
Authority
GB
United Kingdom
Prior art keywords
screen
portions
members
annular member
mask
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
GB12245/57A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB813954A publication Critical patent/GB813954A/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
    • H01J29/24—Supports for luminescent material
    • 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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0766—Details of skirt or border
    • H01J2229/0772—Apertures, cut-outs, depressions, or the like

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

813,954. Colour television tubes. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 15, 1957. [April 17, 1956], No. 12245/57. Class 39(1). A cathode-ray tube e.g. a colour television receiver, including a luminescent screen, electron beam generating means and a shadow mask electrode adjacent the screen also includes a peripheral shield member 37, Fig. 3, placed adjacent the mask 31 on the side thereof facing the beam generating means to prevent fringing electrons from passing between the edge of the mask and the tube wall 17 and causing undesirable edge effects. Instead of a single annular member a plurality of metallic members 57, Fig. 7, so shaped and positioned that they have a peripheral configuration conforming to portions of that of the screen, may be used, for example at the corners of a substantially rectangular screen. The annular member 61, Fig. 4, has embossed portions 55, whereby positioning members 53 touch member 61 only on portions 55 and only these embossed portions touch the shadow mask 31. The positioning members are made of resilient material and engage lock-in members 45 projecting from the envelope. The annular member is formed of metallic, preferably aluminium, foil material.
GB12245/57A 1956-04-17 1957-04-15 Improvements in or relating to cathode ray tubes Expired GB813954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US578624A US2906904A (en) 1956-04-17 1956-04-17 Cathode ray tube

Publications (1)

Publication Number Publication Date
GB813954A true GB813954A (en) 1959-05-27

Family

ID=24313633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12245/57A Expired GB813954A (en) 1956-04-17 1957-04-15 Improvements in or relating to cathode ray tubes

Country Status (4)

Country Link
US (1) US2906904A (en)
FR (1) FR1171257A (en)
GB (1) GB813954A (en)
NL (1) NL216226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1514352B1 (en) * 1964-06-12 1970-07-30 Rca Corp Method for assembling the shadow mask of a picture tube

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939981A (en) * 1958-03-07 1960-06-07 Paramount Pictures Corp Grid frame support structures for cathode ray tubes
US3358170A (en) * 1962-01-11 1967-12-12 Rauland Corp Color television picture tube and mating support members for mounting the color selection mask within the tube
US3333134A (en) * 1964-06-12 1967-07-25 Rca Corp Shadow mask frame with curved supporting flange paralleling screen surface
US3473065A (en) * 1966-01-18 1969-10-14 Nat Video Corp Over-scanning shield provided in colored television tube between the mask support and the tube
US4002941A (en) * 1966-10-27 1977-01-11 Rca Corporation Shadow mask cathode ray tube shield
DE1512379B2 (en) * 1967-01-13 1970-08-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for holding a shadow mask on a front glass frame of a color television picture tube
US3404302A (en) * 1967-06-21 1968-10-01 Gen Electric Envelope wall with two continuous ledges for positioning and supporting aperture mask
US3524096A (en) * 1968-04-24 1970-08-11 Helen C Haas Color cathode ray tube having shadow mask frame formed to accommodate a support system
US3601650A (en) * 1969-08-11 1971-08-24 Zenith Radio Corp Integrated shadow mask structure
US3873874A (en) * 1974-02-20 1975-03-25 Gte Sylvania Inc Shield attached by sealing to panel sidewall of cathode ray tube
US4100451A (en) * 1974-08-19 1978-07-11 Zenith Radio Corporation Face panel assembly for a color cathode ray tube
US4670686A (en) * 1986-04-29 1987-06-02 Rca Corporation CRT internal magnetic shield contact spring

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661437A (en) * 1951-06-19 1953-12-01 Nat Union Radio Corp Dark trace cathode-ray tube
US2695372A (en) * 1951-10-23 1954-11-23 Chromatic Television Lab Inc Grid structure for cathode-ray tubes
US2722623A (en) * 1953-03-31 1955-11-01 Rca Corp Color-kinescopes etc.
US2690518A (en) * 1953-06-01 1954-09-28 Columbia Broadcasting Syst Inc Color picture tube
US2806162A (en) * 1954-08-18 1957-09-10 Rca Corp Cathode-ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1514352B1 (en) * 1964-06-12 1970-07-30 Rca Corp Method for assembling the shadow mask of a picture tube

Also Published As

Publication number Publication date
FR1171257A (en) 1959-01-23
NL216226A (en)
US2906904A (en) 1959-09-29

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