GB869147A - Improvements in and relating to fluorescent electric discharge lamps - Google Patents

Improvements in and relating to fluorescent electric discharge lamps

Info

Publication number
GB869147A
GB869147A GB2668558A GB2668558A GB869147A GB 869147 A GB869147 A GB 869147A GB 2668558 A GB2668558 A GB 2668558A GB 2668558 A GB2668558 A GB 2668558A GB 869147 A GB869147 A GB 869147A
Authority
GB
United Kingdom
Prior art keywords
phosphor
pigment
colour
lamp
manganese
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
GB2668558A
Inventor
Stanley Thomas Henderson
David Richard Palowkar
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.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries Ltd
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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB2668558A priority Critical patent/GB869147A/en
Publication of GB869147A publication Critical patent/GB869147A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope
    • 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
    • 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
    • C09K11/63—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing boron
    • 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
    • C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
    • 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
    • C09K11/73—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates also containing alkaline earth metals
    • 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

Abstract

869,147. Fluorescent lamps; luminescent materials. THORN ELECTRICAL INDUSTRIES Ltd. July 27, 1959 [Aug. 19, 1958], No. 26685/58. Class 39(1). A mercury vapour fluorescent electric discharge lamp has the inside of its light transmitting enevelope coated with a phosphor, there being intimately intermixed therewith a non-luminescent pigment so that when the phosphor is excited to fluorescence by the discharge the pigment itself absorbs blue light predominantly or the pigment imparts to the phosphor a body colour which absorbs blue light predominantly. The pigment is preferably yellow cadmium sulphide extended by carium sulphate and the phosphor which may be prepared by milling with an organic solvent and using a binder may comprise a mixture of 63.4 % of a calcium halophosphate phosphor suitable for making the lamp of "white" colour, 27.1 % of a magnesium borate activated by cerium and manganese as described in Specification 848,593, 9.05 % of a barium titanium phosphate phosphor as described in Specification 678,596 plus 0.45 % of the pigment. Alternatively the phosphor may comprise 60% of a halophosphate phosphor similar to that in A, but suitable for making a lamp of a "Daylight" or "Cool White" colour, 20% of the magnesium borate phosphor mentioned above, 17.3 % of a manganese activated magnesium fluorogermanate phosphor, 2% of manganese activated zincsilicate phosphor, plus 0.7 % of the pigment.
GB2668558A 1958-08-19 1958-08-19 Improvements in and relating to fluorescent electric discharge lamps Expired GB869147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2668558A GB869147A (en) 1958-08-19 1958-08-19 Improvements in and relating to fluorescent electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2668558A GB869147A (en) 1958-08-19 1958-08-19 Improvements in and relating to fluorescent electric discharge lamps

Publications (1)

Publication Number Publication Date
GB869147A true GB869147A (en) 1961-05-31

Family

ID=10247570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2668558A Expired GB869147A (en) 1958-08-19 1958-08-19 Improvements in and relating to fluorescent electric discharge lamps

Country Status (1)

Country Link
GB (1) GB869147A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058117A (en) * 1979-08-03 1981-04-08 Kasei Optonix Borate phosphor
CN101009194B (en) * 2006-01-25 2010-08-11 通用电气公司 High output fluorescent lamp with improved phosphor layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2058117A (en) * 1979-08-03 1981-04-08 Kasei Optonix Borate phosphor
CN101009194B (en) * 2006-01-25 2010-08-11 通用电气公司 High output fluorescent lamp with improved phosphor layer

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