GB743200A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB743200A
GB743200A GB691/53A GB69153A GB743200A GB 743200 A GB743200 A GB 743200A GB 691/53 A GB691/53 A GB 691/53A GB 69153 A GB69153 A GB 69153A GB 743200 A GB743200 A GB 743200A
Authority
GB
United Kingdom
Prior art keywords
per cent
gun
strip
coating
cathode
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
GB691/53A
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.)
Rauland Borg Corp
Original Assignee
Rauland Borg Corp
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 Rauland Borg Corp filed Critical Rauland Borg Corp
Publication of GB743200A publication Critical patent/GB743200A/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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
    • 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
    • H01J29/96—One or more circuit elements structurally associated with the tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/88—Coatings
    • H01J2229/882—Coatings having particular electrical resistive or conductive properties

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

743,200. Cathode-ray tubes. RAULAND CORPORATION. Jan. 9, 1953 [Jan. 9, 1952], No. 691/53. Class 39 (1). A cathode-ray receiving tube has a first conductive wall coating 22 between the gun and fluorescent screen, a second conductive wall coating 40 encompassing at least some of the gun electrodes and at least one bi-metal strip 41 secured to one of the gun electrodes and arranged to make contact with coating 40 under normal operating conditions and to be withdrawn from contact when a foreseen rise in temperature occurs during the manufacture of the tube, as during sealing in of the gun and degassing. In this way risk of fracture of the envelope due to unequal heating of the envelope and bi-metal strip is avoided. Bi-metal spring strips 41, of which there may one or any desired number, may be made of an alloy of 22 per cent Ni, 3 per cent Cr, 75 per cent Fe, or 72 per cent Mn, 18 per cent Cu, 10 per cent Ni (for strip 42) and 36 per cent Ni, 64 per cent Fe (for strip 43). The electrode structure preferably incorporates an ion trap and a " unipotential " electron lens as described in Specification 743,181. Conducting coating 40, preferably of silver paint, is provided to minimize cold emission and sparking, which would cause loss of brightness or " tearing out " of small parts of the picture. Specifications 679,348 and 715,235 also are referred to.
GB691/53A 1952-01-09 1953-01-09 Improvements in or relating to cathode ray tubes Expired GB743200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US265627A US2658161A (en) 1952-01-09 1952-01-09 Image-reproducing device

Publications (1)

Publication Number Publication Date
GB743200A true GB743200A (en) 1956-01-11

Family

ID=23011239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB691/53A Expired GB743200A (en) 1952-01-09 1953-01-09 Improvements in or relating to cathode ray tubes

Country Status (2)

Country Link
US (1) US2658161A (en)
GB (1) GB743200A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793312A (en) * 1952-12-24 1957-05-21 Rca Corp Electron gun structure
BE526615A (en) * 1953-02-19
US2903612A (en) * 1954-09-16 1959-09-08 Rca Corp Positive ion trap gun
US2847599A (en) * 1956-01-09 1958-08-12 Rca Corp Bulb spacer shield
US2918640A (en) * 1956-03-23 1959-12-22 Gen Instrument Corp Transformer construction
US3038094A (en) * 1958-11-10 1962-06-05 Gen Electric Ruggedized electric discharge device structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL84342C (en) * 1936-10-10
US2323140A (en) * 1942-04-29 1943-06-29 Rca Corp Mount support and contact for electron discharge devices
US2432037A (en) * 1943-08-20 1947-12-02 Kreisler Mfg Corp Jacques Electron gun positioning means
BE489630A (en) * 1948-06-15
US2596508A (en) * 1950-04-19 1952-05-13 Rauland Corp Electron gun for cathode-ray tubes

Also Published As

Publication number Publication date
US2658161A (en) 1953-11-03

Similar Documents

Publication Publication Date Title
GB978223A (en) Voltage indicator tube having two indicator systems
GB743200A (en) Improvements in or relating to cathode ray tubes
GB478024A (en) Improvements in or relating to thermionic cathodes for high pressure metal vapour discharge devices
GB394341A (en) Improvements in or relating to television receiving apparatus
GB730920A (en) Improvements in or relating to high-vacuum electric discharge tubes of the kind comprising cold electrodes
GB473675A (en) Improvements in or relating to cathode ray tubes
GB629881A (en) Improvements in electric discharge tubes comprising secondary emission electrodes
GB716162A (en) Improvements in or relating to cathode-ray tubes
GB481170A (en) Improvements in or relating to electron discharge devices
GB420663A (en) Improvements in luminous electric discharge tubes
GB802108A (en) Improvements in or relating to electron guns for cathode ray tubes
GB842973A (en) Improvements in or relating to cathode ray tubes
GB434643A (en) Improvements in or relating to electron discharge devices
GB395660A (en) Improvements in and relating to electric discharge devices
GB440196A (en) Improvements in and relating to electric discharge devices
US6919674B2 (en) Electron gun for color cathode ray tube
DE423048C (en) Receiving tube with a cathode that emits electrons, an anode, a grid and an inert gas filling
US2220089A (en) Gaseous discharge tube
GB386282A (en) Improvements relating to electron discharge tubes
DE437549C (en) Electric discharge tubes that have a glow cathode and one or more cold electrodes and a vaporizable electropositive substance
JPS57119437A (en) Cathode ray tube
GB455591A (en) Improvements in and relating to electric discharge tubes
GB490652A (en) Improvements in or relating to electric discharge tubes
GB475995A (en) Improvements in or relating to picture transmitting devices for television purposes
GB814298A (en) Improvements in or relating to cathode ray tubes