GB519157A - Improvements in electric discharge lamps - Google Patents

Improvements in electric discharge lamps

Info

Publication number
GB519157A
GB519157A GB1749038A GB1749038A GB519157A GB 519157 A GB519157 A GB 519157A GB 1749038 A GB1749038 A GB 1749038A GB 1749038 A GB1749038 A GB 1749038A GB 519157 A GB519157 A GB 519157A
Authority
GB
United Kingdom
Prior art keywords
set out
group
luminescent
manganese
electric discharge
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
GB1749038A
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.)
JAMES NORMAN BOWTELL
General Electric Co PLC
Original Assignee
JAMES NORMAN BOWTELL
General Electric Co 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 JAMES NORMAN BOWTELL, General Electric Co PLC filed Critical JAMES NORMAN BOWTELL
Priority to GB1749038A priority Critical patent/GB519157A/en
Publication of GB519157A publication Critical patent/GB519157A/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
    • C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
    • C09K11/72—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44—Devices characterised by the luminescent material

Landscapes

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

Abstract

519,157. Luminescent materials. GENERAL ELECTRIC CO., Ltd., BOWTELL, J. N., and JENKINS, H. G. June 13, 1938, No. 17490. Addition to 495,706, [Group XX]. [Class 39 (i)] One or more low pressure mercury vapour electric discharge lamps are used with luminescent material consisting of (i) a material containing cadmium, manganese, chlorine, phosphorus and oxygen, as set out in Specification 495,706, [Group XX], and (ii) luminescent magnesium tungstate or zinc tungstate or both ; the use of these is set out in Specifications 469,732 and 469,913. These materials may be mixed and used in one lamp or may be used in separate lamps, but their association is such that light obtained therefrom contains in one desired direction a substantial proportion of light from each. Vanadium may be added to material (i) as set out in Specification 509,857. Diffusing reflecting or refracting means may be used therewith. A part of the material in (i) may be replaced by zinc-beryllium silicate activated by manganese ; the use of this material is set out in Specification 480,356, [Group XX]. Specification 515,154 also is referred to. According to the Provisional Specification magnesium tungstate is preferable for material (ii), the reasons therefor being set out in Specification 495,415, [Group XX].
GB1749038A 1938-06-13 1938-06-13 Improvements in electric discharge lamps Expired GB519157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1749038A GB519157A (en) 1938-06-13 1938-06-13 Improvements in electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1749038A GB519157A (en) 1938-06-13 1938-06-13 Improvements in electric discharge lamps

Publications (1)

Publication Number Publication Date
GB519157A true GB519157A (en) 1940-03-19

Family

ID=10096082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1749038A Expired GB519157A (en) 1938-06-13 1938-06-13 Improvements in electric discharge lamps

Country Status (1)

Country Link
GB (1) GB519157A (en)

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