GB1289552A - - Google Patents

Info

Publication number
GB1289552A
GB1289552A GB1289552DA GB1289552A GB 1289552 A GB1289552 A GB 1289552A GB 1289552D A GB1289552D A GB 1289552DA GB 1289552 A GB1289552 A GB 1289552A
Authority
GB
United Kingdom
Prior art keywords
yvo
sept
phosphors
heading
atoms
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
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 filed Critical
Publication of GB1289552A publication Critical patent/GB1289552A/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
    • H01J61/44—Devices characterised by the luminescent material
    • 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
    • C09K11/7794—Vanadates; Chromates; Molybdates; Tungstates

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)

Abstract

1289552 Luminescent materials GTE SYLVANIA Inc 26 Sept 1969 [26 Sept 1968] 47482/69 Addition to 1229058 Heading C4S An electric discharge lamp comprises a glass envelope coated with YVO 4 : Eu phosphor coactivated with 7À2 to 11À0 Î 10<SP>-3</SP> gm. atoms Tb per mole of YVO 4 , Bi and Pr may also be present. The phosphors and their preparation are described in the parent Specification.
GB1289552D 1968-09-26 1969-09-26 Expired GB1289552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76291068A 1968-09-26 1968-09-26

Publications (1)

Publication Number Publication Date
GB1289552A true GB1289552A (en) 1972-09-20

Family

ID=25066373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289552D Expired GB1289552A (en) 1968-09-26 1969-09-26

Country Status (1)

Country Link
GB (1) GB1289552A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002043106A1 (en) * 2000-11-21 2002-05-30 Koninklijke Philips Electronics N.V. Gas discharge lamp comprising a phosphor layer
US6402987B1 (en) * 1999-12-01 2002-06-11 General Electric Company YMO4:Eu,L phoshpor with improved lumen maintenance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6402987B1 (en) * 1999-12-01 2002-06-11 General Electric Company YMO4:Eu,L phoshpor with improved lumen maintenance
WO2002043106A1 (en) * 2000-11-21 2002-05-30 Koninklijke Philips Electronics N.V. Gas discharge lamp comprising a phosphor layer
US6777879B2 (en) 2000-11-21 2004-08-17 Koninklijke Philips Electronics N.V. Gas discharge lamp comprising a phosphor layer

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee