GB915757A - Improvements in face plates for cathode ray tubes - Google Patents

Improvements in face plates for cathode ray tubes

Info

Publication number
GB915757A
GB915757A GB655361A GB655361A GB915757A GB 915757 A GB915757 A GB 915757A GB 655361 A GB655361 A GB 655361A GB 655361 A GB655361 A GB 655361A GB 915757 A GB915757 A GB 915757A
Authority
GB
United Kingdom
Prior art keywords
luminescent material
faceplate
opaque
coated
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
GB655361A
Inventor
Richard Forrest Woodcock
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.)
American Optical Corp
Original Assignee
American Optical 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 American Optical Corp filed Critical American Optical Corp
Priority to GB655361A priority Critical patent/GB915757A/en
Publication of GB915757A publication Critical patent/GB915757A/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

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

915,757. Cathode-ray tubes. AMERICAN OPTICAL CO. Feb. 22, 1961 [Feb. 22, 1960], No. 6553/61. Class 39 (1). [Also in Group XXIII] A cathode-ray tube screen includes a plurality of spaced rodlike members 15 of luminescent material of uniform size each in end contact with, and normal to, a faceplate 11 and each having its side walls coated with an opaque material 14. As shown, a foraminous glass plate 16 has its apertures coated with opaque, reflective material 14 by gas-plating, evaporation or chemical silvering, and filled with luminescent material 15 either before or after it is sealed to faceplate 11. The plates 11 and 16 may be made integrally of a photo-sensitive glass, the apertures being formed by exposure to ultra-violet light and selective etching in hydrofluoric acid of the exposed areas. The luminescent material may be inserted in the form of a liquid or paste mixture of phosphor powder and water glass or by vapour deposition. Alternatively, rods of luminescent material may be formed initially, attached to the rear surface of the faceplate and coated with opaque, reflective material which may fill the spaces between the rods. A thin reflective layer of aluminium may be applied over the rear surface of the phosphor.
GB655361A 1961-02-22 1961-02-22 Improvements in face plates for cathode ray tubes Expired GB915757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB655361A GB915757A (en) 1961-02-22 1961-02-22 Improvements in face plates for cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB655361A GB915757A (en) 1961-02-22 1961-02-22 Improvements in face plates for cathode ray tubes

Publications (1)

Publication Number Publication Date
GB915757A true GB915757A (en) 1963-01-16

Family

ID=9816605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB655361A Expired GB915757A (en) 1961-02-22 1961-02-22 Improvements in face plates for cathode ray tubes

Country Status (1)

Country Link
GB (1) GB915757A (en)

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