FR2363618A1 - Ameliorations concernant des substances luminescentes - Google Patents

Ameliorations concernant des substances luminescentes

Info

Publication number
FR2363618A1
FR2363618A1 FR7726426A FR7726426A FR2363618A1 FR 2363618 A1 FR2363618 A1 FR 2363618A1 FR 7726426 A FR7726426 A FR 7726426A FR 7726426 A FR7726426 A FR 7726426A FR 2363618 A1 FR2363618 A1 FR 2363618A1
Authority
FR
France
Prior art keywords
present
luminescent substances
manganese
titanium
substances
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.)
Withdrawn
Application number
FR7726426A
Other languages
English (en)
Inventor
Roderick Gordon Lester Barnes
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey 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
Priority claimed from GB3640176A external-priority patent/GB1586962A/en
Application filed by Johnson Matthey PLC filed Critical Johnson Matthey PLC
Publication of FR2363618A1 publication Critical patent/FR2363618A1/fr
Withdrawn legal-status Critical Current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
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7704—Halogenides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

La présente invention se rapporte à des substances luminescentes. Les substances selon la présente invention comprennent un fluorure de terre rare, choisi dans le groupe comprenant scandium, yttrium et les éléments ayant un nombre atomique entre 51 et 71, activé au manganèse, comprenant éventuellement un élément choisi dans titane, zirconium, hafnium, cérium, silicone, germanium et étain. La substance fluorescente selon la présente invention émet, sous excitation, une radiation dans la partie verte ou jaune-verte du spectre. La fluorescence rémanente est comparable sinon meilleure, à celle des phosphores connus et la résistance au brûlage est améliorée si du titane est utilisé comme activateur avec le manganèse.
FR7726426A 1977-01-19 1977-08-31 Ameliorations concernant des substances luminescentes Withdrawn FR2363618A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB210877 1977-01-19
GB3640176A GB1586962A (en) 1977-08-22 1977-08-22 Luminescent materials

Publications (1)

Publication Number Publication Date
FR2363618A1 true FR2363618A1 (fr) 1978-03-31

Family

ID=26237261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726426A Withdrawn FR2363618A1 (fr) 1977-01-19 1977-08-31 Ameliorations concernant des substances luminescentes

Country Status (8)

Country Link
US (1) US4122370A (fr)
JP (1) JPS5330487A (fr)
CA (1) CA1099909A (fr)
DE (1) DE2739436A1 (fr)
FR (1) FR2363618A1 (fr)
IT (1) IT1087152B (fr)
NL (1) NL7709621A (fr)
SE (1) SE425915B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259588A (en) * 1979-10-31 1981-03-31 Eastman Kodak Company Green-emitting X-ray intensifying screens
GB2236495B (en) * 1989-10-07 1993-09-22 P J Mason & Co Limited Improvements in or relating to illuminating arrangements
US8115373B2 (en) 2005-07-06 2012-02-14 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837578C (de) * 1949-09-10 1952-12-01 Patra Patent Treuhand Grundstoff fuer thermische Selektivstrahler und Leuchtstoffe
US3693006A (en) * 1971-06-22 1972-09-19 Sylvania Electric Prod Lamp employing luminescent manganese-activated strontium barium chloro-aluminate phosphor compositions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746933A (en) * 1953-04-28 1956-05-22 Rca Corp Fluoride phosphors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837578C (de) * 1949-09-10 1952-12-01 Patra Patent Treuhand Grundstoff fuer thermische Selektivstrahler und Leuchtstoffe
US3693006A (en) * 1971-06-22 1972-09-19 Sylvania Electric Prod Lamp employing luminescent manganese-activated strontium barium chloro-aluminate phosphor compositions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CA1975 *
EXBK/64 *

Also Published As

Publication number Publication date
SE7709514L (sv) 1978-03-03
IT1087152B (it) 1985-05-31
SE425915B (sv) 1982-11-22
NL7709621A (nl) 1978-03-06
JPS5330487A (en) 1978-03-22
CA1099909A (fr) 1981-04-28
DE2739436A1 (de) 1978-03-09
US4122370A (en) 1978-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse