GB700725A - Method of elimination phosphor discoloration in cathode ray tubes - Google Patents

Method of elimination phosphor discoloration in cathode ray tubes

Info

Publication number
GB700725A
GB700725A GB23864/51A GB2386451A GB700725A GB 700725 A GB700725 A GB 700725A GB 23864/51 A GB23864/51 A GB 23864/51A GB 2386451 A GB2386451 A GB 2386451A GB 700725 A GB700725 A GB 700725A
Authority
GB
United Kingdom
Prior art keywords
elimination
cathode ray
ray tubes
oct
discoloration
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
GB23864/51A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB700725A publication Critical patent/GB700725A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J9/221—Applying luminescent coatings in continuous layers
    • H01J9/223—Applying luminescent coatings in continuous layers by uniformly dispersing of liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Luminescent Compositions (AREA)

Abstract

700,725. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS, Inc. Oct. 12,1951 [Oct. 19, 1950], No. 23864/51. Drawings to Specification. Class 39(1) A permanganate is included in the dispersion solution used in settling a luminescent material through a liquid to form a screen. In the examples, potassium permanganate in 2.5-15 per cent solution is admixed with the binders, gelling agents and the luminescent material either simultaneously or at different stages. The binder may be potassium silicate with acetic acid, a silicate gelled by an ammonium compound, phosphoric acid or boric acid.
GB23864/51A 1950-10-19 1951-10-12 Method of elimination phosphor discoloration in cathode ray tubes Expired GB700725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US700725XA 1950-10-19 1950-10-19

Publications (1)

Publication Number Publication Date
GB700725A true GB700725A (en) 1953-12-09

Family

ID=22092948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23864/51A Expired GB700725A (en) 1950-10-19 1951-10-12 Method of elimination phosphor discoloration in cathode ray tubes

Country Status (1)

Country Link
GB (1) GB700725A (en)

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