GB1453991A - Luminescent materials - Google Patents

Luminescent materials

Info

Publication number
GB1453991A
GB1453991A GB1026974A GB1026974A GB1453991A GB 1453991 A GB1453991 A GB 1453991A GB 1026974 A GB1026974 A GB 1026974A GB 1026974 A GB1026974 A GB 1026974A GB 1453991 A GB1453991 A GB 1453991A
Authority
GB
United Kingdom
Prior art keywords
lamps
luminescent materials
phosphor
march
given
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
GB1026974A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1453991A publication Critical patent/GB1453991A/en
Expired 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
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/778—Borates

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)

Abstract

1453991 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 March 1974 [14 March 1973] 10269/74 Heading C4S A Tb activated phosphor is of formula M 3 Ln 2-x Tb x (BO 3 ) 4 where M is at least one of Ca, Sr or Ba, Ln is at least one of Y, La, Gd, Lu, Yb and Dy and in which 0À01#x#1À50. The phosphor may be used in a screen, e.g. with other luminescent materials as a green component in low p Hg lamps, or in such lamps for xerographic photocopy equipment, or in low p Cd lamps (e.g. 230 to 330 nm. radiation). Excitation may be electrons, X-rays or ultra-violet. The compounds have isomorphic crystal structure with orthorhombic symmetry. The borates are preferably prepared by a solid state reaction, starting materials being given, and involving heating between 800‹ C. and the melting point. Multistage heating is preferred, e.g. preheating at 600-800‹ C., then one or more treatments at 800-1,200‹ C. in a weakly reducing atmosphere. Detailed preparations are given, as well as twenty-nine specific phosphor compositions. Operation may be at >500‹ C. the Table lists various properties.
GB1026974A 1973-03-14 1974-03-07 Luminescent materials Expired GB1453991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7303538A NL7303538A (en) 1973-03-14 1973-03-14

Publications (1)

Publication Number Publication Date
GB1453991A true GB1453991A (en) 1976-10-27

Family

ID=19818432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1026974A Expired GB1453991A (en) 1973-03-14 1974-03-07 Luminescent materials

Country Status (7)

Country Link
JP (1) JPS568879B2 (en)
BE (1) BE812206A (en)
CA (1) CA1038619A (en)
DE (1) DE2410134C3 (en)
FR (1) FR2221811B1 (en)
GB (1) GB1453991A (en)
NL (1) NL7303538A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475428A2 (en) * 2003-05-09 2004-11-10 Osram Sylvania, Inc. High brightness green-emitting phosphor
CN102134489A (en) * 2010-01-22 2011-07-27 海洋王照明科技股份有限公司 Borate luminescent material and preparation method thereof
US8012372B2 (en) 2008-02-25 2011-09-06 Industrial Technology Research Institute Borate phosphor and white light illumination device utilizing the same
CN102140347B (en) * 2010-01-28 2014-05-07 海洋王照明科技股份有限公司 Borofluoride white light emitting material and preparation method thereof

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52121978A (en) * 1976-04-06 1977-10-13 Iwasaki Electric Co Ltd Fluorescent high-pressure mercury lamp
NL182488C (en) * 1978-04-20 1988-03-16 Philips Nv LUMINESCENT LEAD-ACTIVATED NATURAL POTASSIUM BORATE; LUMINESCENT SCREEN; LOW-PRESSURE MERCURY DISCHARGE LAMP.
US4202794A (en) * 1978-10-25 1980-05-13 Westinghouse Electric Corp. Calcium yttrium borate phosphor composition
NL7905680A (en) * 1979-07-23 1981-01-27 Philips Nv LUMINESCENT SCREEN.
FR2485507A1 (en) * 1980-06-27 1981-12-31 Rhone Poulenc Ind NEW LUMINESCENT LUMINESCENT SUBSTANCES BASED ON DOUBLE BORATE OF MAGNESIUM AND RARE EARTHS FOR SCREENS OR TUBES
JPS57115484A (en) * 1981-01-09 1982-07-17 Hitachi Ltd Fluorescent substance and its preparation
JPS57136873U (en) * 1981-02-18 1982-08-26
JPS57139686U (en) * 1981-02-25 1982-09-01
JPS581788U (en) * 1981-06-26 1983-01-07 松下電器産業株式会社 vane pump
JPS581787U (en) * 1981-06-26 1983-01-07 松下電器産業株式会社 Closed vane pump
JPS58128489A (en) * 1982-01-25 1983-08-01 Matsushita Electric Ind Co Ltd Vane pump for refrigerant
FR2597851B1 (en) * 1986-04-29 1990-10-26 Centre Nat Rech Scient NOVEL MIXED BORATES BASED ON RARE EARTHS, THEIR PREPARATION AND THEIR APPLICATION AS LUMINOPHORES
US4926091A (en) * 1988-09-07 1990-05-15 U.S. Philips Corporation Luminescent terbium-activated borate, luminescent screen provided with such a borate and low-pressure mercury vapor discharge lamp provided with such a screen
US7122128B2 (en) * 2004-04-29 2006-10-17 General Electric Company Phosphors containing borate of terbium, alkaline-earth, and Group-3 metals, and light sources incorporating the same
CN110725003A (en) * 2019-11-28 2020-01-24 中国工程物理研究院化工材料研究所 Ytterbium-doped strontium gadolinium lanthanum borate laser crystal and preparation method and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1440480A (en) * 1964-07-16 1966-05-27 Philips Nv luminescent screen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1475428A2 (en) * 2003-05-09 2004-11-10 Osram Sylvania, Inc. High brightness green-emitting phosphor
EP1475428A3 (en) * 2003-05-09 2004-12-22 Osram Sylvania, Inc. High brightness green-emitting phosphor
CN1325602C (en) * 2003-05-09 2007-07-11 奥斯兰姆施尔凡尼亚公司 High brightness green-emitting phosphor
US8012372B2 (en) 2008-02-25 2011-09-06 Industrial Technology Research Institute Borate phosphor and white light illumination device utilizing the same
CN102134489A (en) * 2010-01-22 2011-07-27 海洋王照明科技股份有限公司 Borate luminescent material and preparation method thereof
CN102140347B (en) * 2010-01-28 2014-05-07 海洋王照明科技股份有限公司 Borofluoride white light emitting material and preparation method thereof

Also Published As

Publication number Publication date
NL7303538A (en) 1974-09-17
JPS568879B2 (en) 1981-02-26
DE2410134B2 (en) 1981-07-30
FR2221811A1 (en) 1974-10-11
FR2221811B1 (en) 1977-10-07
BE812206A (en) 1974-09-12
JPS49122490A (en) 1974-11-22
DE2410134C3 (en) 1982-04-22
CA1038619A (en) 1978-09-19
DE2410134A1 (en) 1974-09-19

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Legal Events

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