GB1254110A - Alkaline earth metal halosilicate phosphors - Google Patents
Alkaline earth metal halosilicate phosphorsInfo
- Publication number
- GB1254110A GB1254110A GB22512/68A GB2251268A GB1254110A GB 1254110 A GB1254110 A GB 1254110A GB 22512/68 A GB22512/68 A GB 22512/68A GB 2251268 A GB2251268 A GB 2251268A GB 1254110 A GB1254110 A GB 1254110A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkaline earth
- earth metal
- phosphor
- divalent
- trivalent
- 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
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
- C09K11/77062—Silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
1,254,110. Luminescent materials. THORN ELECTRICAL INDUSTRIES Ltd. 7 May, 1969 [13 May, 1968], No. 22512. Heading C4S. A phosphor for use in discharge lamps comprises an alkaline earth metal Y and/or La halosilicate activated by divalent and/or trivalent metal ions, e.g. trivalent Sb, Tb, Ce or Eu or divalent Sn, Pb and Mn or trivalent Ce and divalent Mn. The alkaline earth metals are Mg, Ca, Sr and Ba. The halogen is F. The phosphor is prepared by blending and firing in air or a reducing atmosphere Y or La silicate or SiO 2 with carbonates, fluoride, oxides and oxalate of the phosphor metals. The silicate is prepared by heating La 2 O 3 or Y 2 O 3 , SiO 2 and NH 4 F.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22512/68A GB1254110A (en) | 1968-05-13 | 1968-05-13 | Alkaline earth metal halosilicate phosphors |
SE06682/69A SE347009B (en) | 1968-05-13 | 1969-05-12 | |
DE19691924160 DE1924160A1 (en) | 1968-05-13 | 1969-05-12 | Alkaline earth halosilicate phosphors |
NL6907318A NL6907318A (en) | 1968-05-13 | 1969-05-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB22512/68A GB1254110A (en) | 1968-05-13 | 1968-05-13 | Alkaline earth metal halosilicate phosphors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1254110A true GB1254110A (en) | 1971-11-17 |
Family
ID=10180580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22512/68A Expired GB1254110A (en) | 1968-05-13 | 1968-05-13 | Alkaline earth metal halosilicate phosphors |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1924160A1 (en) |
GB (1) | GB1254110A (en) |
NL (1) | NL6907318A (en) |
SE (1) | SE347009B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004020550A1 (en) | 2002-08-29 | 2004-03-11 | Sumitomo Chemical Company, Limited | Phosphor and vacuum ultraviolet ray exited luminescent element |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7904953A (en) * | 1979-06-26 | 1980-12-30 | Philips Nv | LUMINESCENT SCREEN. |
-
1968
- 1968-05-13 GB GB22512/68A patent/GB1254110A/en not_active Expired
-
1969
- 1969-05-12 SE SE06682/69A patent/SE347009B/xx unknown
- 1969-05-12 DE DE19691924160 patent/DE1924160A1/en active Pending
- 1969-05-13 NL NL6907318A patent/NL6907318A/xx unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004020550A1 (en) | 2002-08-29 | 2004-03-11 | Sumitomo Chemical Company, Limited | Phosphor and vacuum ultraviolet ray exited luminescent element |
EP1541659A1 (en) * | 2002-08-29 | 2005-06-15 | Sumitomo Chemical Company, Limited | Phosphor and vacuum ultraviolet ray exited luminescent element |
EP1541659A4 (en) * | 2002-08-29 | 2007-09-05 | Sumitomo Chemical Co | Phosphor and vacuum ultraviolet ray exited luminescent element |
US7736535B2 (en) | 2002-08-29 | 2010-06-15 | Sumitomo Chemical Company, Limited | Phosphor and vacuum ultraviolet excited luminescent element |
Also Published As
Publication number | Publication date |
---|---|
NL6907318A (en) | 1969-11-17 |
DE1924160A1 (en) | 1969-11-20 |
SE347009B (en) | 1972-07-24 |
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