BE752300A - MULTIPLE LUMINESSENT LAYER DEMONSTRATING AN INCREASED LASTABILITY OF THE LUMINOUS ENERGY FLOW - Google Patents

MULTIPLE LUMINESSENT LAYER DEMONSTRATING AN INCREASED LASTABILITY OF THE LUMINOUS ENERGY FLOW

Info

Publication number
BE752300A
BE752300A BE752300DA BE752300A BE 752300 A BE752300 A BE 752300A BE 752300D A BE752300D A BE 752300DA BE 752300 A BE752300 A BE 752300A
Authority
BE
Belgium
Prior art keywords
luminessent
lastability
increased
luminous energy
energy flow
Prior art date
Application number
Other languages
French (fr)
Inventor
A Wachtel
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of BE752300A publication Critical patent/BE752300A/en

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
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/48—Separate coatings of different luminous 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
    • C09K11/66—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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/7737—Phosphates
    • C09K11/7738—Phosphates with alkaline earth metals
    • C09K11/7739—Phosphates with alkaline earth metals with halogens
    • 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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7784—Chalcogenides
    • C09K11/7787—Oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
BE752300D 1969-06-20 1970-06-19 MULTIPLE LUMINESSENT LAYER DEMONSTRATING AN INCREASED LASTABILITY OF THE LUMINOUS ENERGY FLOW BE752300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83500669A 1969-06-20 1969-06-20

Publications (1)

Publication Number Publication Date
BE752300A true BE752300A (en) 1970-12-01

Family

ID=25268334

Family Applications (1)

Application Number Title Priority Date Filing Date
BE752300D BE752300A (en) 1969-06-20 1970-06-19 MULTIPLE LUMINESSENT LAYER DEMONSTRATING AN INCREASED LASTABILITY OF THE LUMINOUS ENERGY FLOW

Country Status (4)

Country Link
US (1) US3602757A (en)
BE (1) BE752300A (en)
DE (1) DE2029302A1 (en)
NL (1) NL7008975A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858082A (en) * 1970-12-10 1974-12-31 Westinghouse Electric Corp Warm white lamp with normal output and improved color rendition
US3707641A (en) * 1970-12-22 1972-12-26 Westinghouse Electric Corp Discharge device which utilizes a mixture of two fluorescent materials
JPS5241484A (en) * 1975-09-25 1977-03-31 Gen Electric Fluorescent lamp structure using two kinds of phospher
US4070598A (en) * 1976-11-08 1978-01-24 General Electric Company Fluorescent lamp with second phosphor layer
FR2379160A1 (en) * 1977-01-28 1978-08-25 Gen Electric PERFECTED FLUORESCENT LAMP
US4431941A (en) * 1979-06-11 1984-02-14 Gte Products Corporation Fluorescent lamp having double phosphor layer
US4305019A (en) * 1979-12-31 1981-12-08 Westinghouse Electric Corp. Warm-white fluorescent lamp having good efficacy and color rendering and using special phosphor blend as separate undercoat
JPS56143654A (en) * 1980-04-08 1981-11-09 Toshiba Corp Fluorescent lamp
US4678966A (en) * 1980-06-13 1987-07-07 Gte Products Corporation Fluorescent lamp having two phosphor layers
US4914346A (en) * 1983-03-04 1990-04-03 Gte Products Corporation Lamp envelope having a luminescent material on the interior surface thereof, method of applying said material, and material to be applied
US6906475B2 (en) * 2000-07-07 2005-06-14 Matsushita Electric Industrial Co., Ltd. Fluorescent lamp and high intensity discharge lamp with improved luminous efficiency
CN1267946C (en) * 2000-08-10 2006-08-02 奥斯兰姆施尔凡尼亚公司 Display device having reduced color shift during life

Also Published As

Publication number Publication date
US3602757A (en) 1971-08-31
NL7008975A (en) 1970-12-22
DE2029302A1 (en) 1970-12-23

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