GB494513A - Improvements in or relating to luminescent material - Google Patents

Improvements in or relating to luminescent material

Info

Publication number
GB494513A
GB494513A GB1178337A GB1178337A GB494513A GB 494513 A GB494513 A GB 494513A GB 1178337 A GB1178337 A GB 1178337A GB 1178337 A GB1178337 A GB 1178337A GB 494513 A GB494513 A GB 494513A
Authority
GB
United Kingdom
Prior art keywords
luminescent
carbon
substance
weight
group
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
GB1178337A
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB1178337A priority Critical patent/GB494513A/en
Publication of GB494513A publication Critical patent/GB494513A/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
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers

Landscapes

  • Luminescent Compositions (AREA)

Abstract

494,513. Luminescent materials. FERRANTI, Ltd., and CHILCOT, A. L. April 24, 1937, No. 11783. [Class 98 (i)] A conducting material for the preparation of luminescent screens on metal surfaces in cathode-ray devices comprises 100 parts by weight of luminescent substance intimately mixed with 3 parts by weight of finely divided carbon, preferably in the form of carbon black. The luminescent substance is willemite or other substance chemically inert to carbon. Specifications 443,602, [Group XL], and 451,717, [Group II], are referred to.
GB1178337A 1937-04-24 1937-04-24 Improvements in or relating to luminescent material Expired GB494513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1178337A GB494513A (en) 1937-04-24 1937-04-24 Improvements in or relating to luminescent material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1178337A GB494513A (en) 1937-04-24 1937-04-24 Improvements in or relating to luminescent material

Publications (1)

Publication Number Publication Date
GB494513A true GB494513A (en) 1938-10-24

Family

ID=9992615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1178337A Expired GB494513A (en) 1937-04-24 1937-04-24 Improvements in or relating to luminescent material

Country Status (1)

Country Link
GB (1) GB494513A (en)

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