GB514458A - Improvements in or relating to luminescent materials - Google Patents

Improvements in or relating to luminescent materials

Info

Publication number
GB514458A
GB514458A GB1361738A GB1361738A GB514458A GB 514458 A GB514458 A GB 514458A GB 1361738 A GB1361738 A GB 1361738A GB 1361738 A GB1361738 A GB 1361738A GB 514458 A GB514458 A GB 514458A
Authority
GB
United Kingdom
Prior art keywords
parts
silicate
activated
zinc
weight
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
GB1361738A
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.)
FRANCO BRITISH ELECTRICAL CO
Original Assignee
FRANCO BRITISH ELECTRICAL 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 FRANCO BRITISH ELECTRICAL CO filed Critical FRANCO BRITISH ELECTRICAL CO
Priority to GB1361738A priority Critical patent/GB514458A/en
Publication of GB514458A publication Critical patent/GB514458A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/67—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals
    • C09K11/68—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals containing chromium, molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

514,458. Luminescent materials. FRANCOBRITISH ELECTRICAL CO., LTD., and BRACKENSEY, A. H. May 6, 1938, No. 13617. [Class 39 (i)] A luminescent material for the production of luminescent screens giving substantially white fluorescence in electric low pressure mercury lamps, consists of a mixture of from 70 to 90 parts by weight of activated cadmium silicate, 10 to 30 parts by weight of activated zinc silicate, and 2 to 10 parts by weight of activated calcium tungstate, with or without the addition of activated zinc bervllium silicate. In one example, 80 parts of manganese activated cadmium silicate, 15 parts of manganese activated zinc silicate and 5 parts of lead activated calcium tungstate and 1 to 10 parts of manganese activated zinc beryllium silicate are mixed and ground together and applied as an interior coating of a mercury low pressure lamp. The term zinc silicate includes the zinc orthosilicate and that described in Specification 509,723.
GB1361738A 1938-05-06 1938-05-06 Improvements in or relating to luminescent materials Expired GB514458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1361738A GB514458A (en) 1938-05-06 1938-05-06 Improvements in or relating to luminescent materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1361738A GB514458A (en) 1938-05-06 1938-05-06 Improvements in or relating to luminescent materials

Publications (1)

Publication Number Publication Date
GB514458A true GB514458A (en) 1939-11-08

Family

ID=10026292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1361738A Expired GB514458A (en) 1938-05-06 1938-05-06 Improvements in or relating to luminescent materials

Country Status (1)

Country Link
GB (1) GB514458A (en)

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