GB1158222A - Luminescent Materials. - Google Patents

Luminescent Materials.

Info

Publication number
GB1158222A
GB1158222A GB2990967A GB2990967A GB1158222A GB 1158222 A GB1158222 A GB 1158222A GB 2990967 A GB2990967 A GB 2990967A GB 2990967 A GB2990967 A GB 2990967A GB 1158222 A GB1158222 A GB 1158222A
Authority
GB
United Kingdom
Prior art keywords
phosphor
tio
solution
caco
luminescent materials
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
GB2990967A
Inventor
Peter Whitten Ranby
David Richard Palowkar
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.)
British Lighting Industries Ltd
Original Assignee
British Lighting 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 British Lighting Industries Ltd filed Critical British Lighting Industries Ltd
Priority to GB2990967A priority Critical patent/GB1158222A/en
Priority to DE19681767717 priority patent/DE1767717B1/en
Priority to NL6808737A priority patent/NL6808737A/xx
Priority to JP4366468A priority patent/JPS4830829B1/ja
Publication of GB1158222A publication Critical patent/GB1158222A/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
    • C09K11/7701—Chalogenides
    • C09K11/7703—Chalogenides with alkaline earth metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

1,158,222. Luminescent materials. BRITISH LIGHTING INDUSTRIES Ltd. 10 May, 1968 [28 June, 1967], No. 29909/67. Heading C4S. A phosphor comprises Ca titanate activated by Pr, preferably containing F and having some Ca replaced by Cd. The phosphor is prepared by twice heating to 800-1200‹ C. materials which thermally decompose to CaO and TiO 2 with Ca, Sr, Zn or Pb fluoride and an alkali metal salt as flux. A mixture of CaCO 3 , TiO 2 , CaF 2 and K 2 CO 3 with Pr nitrate solution added is dried and heated. The constituents may be co-precipitated by mixing an aqueous solution of K 2 TiO(C 2 O 4 ) 2 and NH 4 F with a solution of CaCO 3 , CdCl 2 and Pr(NO 3 ) 3 in HCl and adding a solution of (NH 4 ) 2 CO 3 . The phosphor may be boiled in phosphoric acid and H 2 O 2 . The phosphor is used in colour TV. fluorescent and HPMV lamps being excited by cathode, U.V. and X-rays; it is also electroluminescent and may be in an organic dielectric binder.
GB2990967A 1967-06-28 1967-06-28 Luminescent Materials. Expired GB1158222A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2990967A GB1158222A (en) 1967-06-28 1967-06-28 Luminescent Materials.
DE19681767717 DE1767717B1 (en) 1967-06-28 1968-06-08 TITANATE-BASED LUMINOUS
NL6808737A NL6808737A (en) 1967-06-28 1968-06-21
JP4366468A JPS4830829B1 (en) 1967-06-28 1968-06-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2990967A GB1158222A (en) 1967-06-28 1967-06-28 Luminescent Materials.

Publications (1)

Publication Number Publication Date
GB1158222A true GB1158222A (en) 1969-07-16

Family

ID=10299182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2990967A Expired GB1158222A (en) 1967-06-28 1967-06-28 Luminescent Materials.

Country Status (4)

Country Link
JP (1) JPS4830829B1 (en)
DE (1) DE1767717B1 (en)
GB (1) GB1158222A (en)
NL (1) NL6808737A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650094A (en) * 1995-06-06 1997-07-22 Royce; Martin R. Red emitting long decay phosphors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5155746B2 (en) * 2008-06-17 2013-03-06 株式会社ノリタケカンパニーリミテド Fluorescent substance and fluorescent display device
JP5672940B2 (en) * 2010-10-20 2015-02-18 宇部興産株式会社 Phosphor powder for inorganic electroluminescence, method for producing the same, and dispersed inorganic electroluminescence element

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD20954A (en) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650094A (en) * 1995-06-06 1997-07-22 Royce; Martin R. Red emitting long decay phosphors

Also Published As

Publication number Publication date
JPS4830829B1 (en) 1973-09-25
DE1767717B1 (en) 1972-02-03
NL6808737A (en) 1968-12-30

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years