CA1020620A - Fluorescent lamp with superposed phosphor layers - Google Patents

Fluorescent lamp with superposed phosphor layers

Info

Publication number
CA1020620A
CA1020620A CA221,647A CA221647A CA1020620A CA 1020620 A CA1020620 A CA 1020620A CA 221647 A CA221647 A CA 221647A CA 1020620 A CA1020620 A CA 1020620A
Authority
CA
Canada
Prior art keywords
fluorescent lamp
phosphor layers
superposed
superposed phosphor
layers
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
CA221,647A
Other languages
French (fr)
Other versions
CA221647S (en
Inventor
Lambertus W.J. Manders
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1020620A publication Critical patent/CA1020620A/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
    • H01J61/42—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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774—Aluminates
    • 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
    • C09K11/74—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth
    • C09K11/75—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony
    • C09K11/76—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony also containing phosphorus and 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
    • C09K11/77—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)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Luminescent Compositions (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Spectrometry And Color Measurement (AREA)
CA221,647A 1974-03-15 1975-03-06 Fluorescent lamp with superposed phosphor layers Expired CA1020620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7403467.A NL165605C (en) 1974-03-15 1974-03-15 ELECTRIC GAS DISCHARGE LAMP.

Publications (1)

Publication Number Publication Date
CA1020620A true CA1020620A (en) 1977-11-08

Family

ID=19820960

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221,647A Expired CA1020620A (en) 1974-03-15 1975-03-06 Fluorescent lamp with superposed phosphor layers

Country Status (20)

Country Link
JP (1) JPS53867B2 (en)
AR (1) AR209763A1 (en)
AT (1) AT339428B (en)
BE (1) BE826651A (en)
BR (1) BR7501449A (en)
CA (1) CA1020620A (en)
CH (1) CH578251A5 (en)
DE (1) DE2509931C3 (en)
DK (1) DK139949B (en)
FI (1) FI57853C (en)
FR (1) FR2264389B1 (en)
GB (1) GB1480876A (en)
IL (1) IL46810A (en)
IN (1) IN143975B (en)
IT (1) IT1034215B (en)
NL (1) NL165605C (en)
NO (1) NO140156C (en)
SE (1) SE403535B (en)
YU (1) YU59775A (en)
ZA (1) ZA751295B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181470C (en) * 1977-08-23 1987-08-17 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
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
NL182998C (en) * 1977-05-06 1988-06-16 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
EP0010991A3 (en) * 1978-11-06 1980-05-28 Westinghouse Electric Corporation Light source for illuminating objects with enhanced perceived coloration
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
JP3149444B2 (en) * 1991-01-30 2001-03-26 東芝ライテック株式会社 Low pressure mercury vapor discharge lamp
DE10152217A1 (en) * 2001-10-23 2003-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Fluorescent composition for low pressure discharge lamps
US7768189B2 (en) * 2004-08-02 2010-08-03 Lumination Llc White LEDs with tunable CRI
DE102008017606A1 (en) * 2008-04-08 2009-10-15 Litec-Lll Gmbh Low-pressure gas discharge lamp for influencing the body's melatonin balance

Also Published As

Publication number Publication date
AU7914875A (en) 1976-09-23
DK139949B (en) 1979-05-21
DE2509931B2 (en) 1979-01-11
DE2509931C3 (en) 1979-09-06
DK139949C (en) 1979-10-22
FI57853B (en) 1980-06-30
JPS53867B2 (en) 1978-01-12
CH578251A5 (en) 1976-07-30
SE7502740L (en) 1975-09-16
JPS50127480A (en) 1975-10-07
AT339428B (en) 1977-10-25
NO140156B (en) 1979-04-02
IL46810A0 (en) 1975-05-22
DE2509931A1 (en) 1975-09-25
YU59775A (en) 1982-06-30
FR2264389B1 (en) 1979-09-28
NL165605C (en) 1981-04-15
IT1034215B (en) 1979-09-10
NL7403467A (en) 1975-09-17
BE826651A (en) 1975-09-15
SE403535B (en) 1978-08-21
NO140156C (en) 1979-07-18
FR2264389A1 (en) 1975-10-10
FI57853C (en) 1981-08-07
GB1480876A (en) 1977-07-27
FI750713A (en) 1975-09-16
IN143975B (en) 1978-03-04
DK101175A (en) 1975-09-16
ZA751295B (en) 1976-10-27
AR209763A1 (en) 1977-05-31
ATA189875A (en) 1977-02-15
IL46810A (en) 1977-01-31
NO750833L (en) 1975-09-16
BR7501449A (en) 1975-12-23

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