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FR921919A - Substances luminescentes - Google Patents

Substances luminescentes

Info

Publication number
FR921919A
FR921919A FR921919DA FR921919A FR 921919 A FR921919 A FR 921919A FR 921919D A FR921919D A FR 921919DA FR 921919 A FR921919 A FR 921919A
Authority
FR
France
Prior art keywords
luminescent substances
luminescent
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.)
Expired
Application number
Other languages
English (en)
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.)
General Electric Company PLC
Original Assignee
General Electric Company 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
Application filed by General Electric Company PLC filed Critical General Electric Company PLC
Application granted granted Critical
Publication of FR921919A publication Critical patent/FR921919A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow
    • G01F5/005—Measuring a proportion of the volume flow by measuring pressure or differential pressure, created by the use of flow constriction
    • 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
    • C09K11/77342—Silicates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/14—Axial pattern
    • Y10T82/141—Axial pattern having transverse tool and templet guide
    • Y10T82/143—Axial pattern having transverse tool and templet guide having electrical actuator

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Luminescent Compositions (AREA)
FR921919D 1940-08-27 1946-02-08 Substances luminescentes Expired FR921919A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13511/40A GB544160A (en) 1940-08-27 1940-08-27 Improvements in luminescent materials

Publications (1)

Publication Number Publication Date
FR921919A true FR921919A (fr) 1947-05-22

Family

ID=10024300

Family Applications (1)

Application Number Title Priority Date Filing Date
FR921919D Expired FR921919A (fr) 1940-08-27 1946-02-08 Substances luminescentes

Country Status (5)

Country Link
US (1) US2297108A (fr)
DK (1) DK71081C (fr)
ES (1) ES173961A1 (fr)
FR (1) FR921919A (fr)
GB (1) GB544160A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838715A (en) * 1950-08-22 1958-06-10 Sylvania Electric Prod Electroluminescent lamp
US3260675A (en) * 1964-07-01 1966-07-12 Westinghouse Electric Corp Calcium and magnesium silicate phosphors with activator comprising terbium
BE670832A (fr) * 1964-10-12
US3420781A (en) * 1966-03-14 1969-01-07 Westinghouse Electric Corp Rare earth activated strontium lithium germanate phosphors
US3505240A (en) * 1966-12-30 1970-04-07 Sylvania Electric Prod Phosphors and their preparation
US3544482A (en) * 1968-03-15 1970-12-01 Sylvania Electric Prod Europium and manganese activated alkaline earth silicate phosphors
US3541019A (en) * 1968-03-15 1970-11-17 Grace W R & Co Method of preparing a zinc silicate phosphor
US3651363A (en) * 1968-12-23 1972-03-21 Sylvania Electric Prod Divalent europium-activated barium-magnesium pyrosilicate
US3676361A (en) * 1969-04-15 1972-07-11 Gen Electric Ternary alkaline-earth pyrosilicate luminescent materials activated with divalent europium
NL7009688A (fr) * 1970-07-01 1972-01-04
US3909443A (en) * 1973-08-16 1975-09-30 Gte Sylvania Inc Calcium lithium silicate phosphors
JPS5611392A (en) * 1979-07-11 1981-02-04 Fuji Photo Film Co Ltd Method and device for converting radiation image
US4748391A (en) * 1986-12-18 1988-05-31 Gte Laboratories Incorporated Yellow green barium lanthanum silicate oxyapatite phosphor, a fluorescent lamp containing the same, and a method thereof
AT410266B (de) * 2000-12-28 2003-03-25 Tridonic Optoelectronics Gmbh Lichtquelle mit einem lichtemittierenden element
KR100511562B1 (ko) * 2003-01-29 2005-09-02 한국화학연구원 백색 발광 다이오드 및 능동 발광형 액정 디스플레이에 적용되는 스트론튬실리케이트계 황색 형광체와 이의 제조방법
WO2005027231A1 (fr) * 2003-09-15 2005-03-24 Koninklijke Philips Electronics N.V. Installation d'eclairage emettant de la lumiere blanche
US7575697B2 (en) * 2004-08-04 2009-08-18 Intematix Corporation Silicate-based green phosphors
US7859182B2 (en) 2005-08-31 2010-12-28 Lumination Llc Warm white LED-based lamp incoporating divalent EU-activated silicate yellow emitting phosphor
US7501753B2 (en) * 2005-08-31 2009-03-10 Lumination Llc Phosphor and blends thereof for use in LEDs

Also Published As

Publication number Publication date
GB544160A (en) 1942-03-31
DK71081C (da) 1950-06-06
US2297108A (en) 1942-09-29
ES173961A1 (es) 1947-11-01

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