GB746273A - Improvements in luminescent materials - Google Patents
Improvements in luminescent materialsInfo
- Publication number
- GB746273A GB746273A GB2089151A GB2089151A GB746273A GB 746273 A GB746273 A GB 746273A GB 2089151 A GB2089151 A GB 2089151A GB 2089151 A GB2089151 A GB 2089151A GB 746273 A GB746273 A GB 746273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- luminescent material
- luminescent materials
- strontium
- pyrophosphate
- 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
- C09K11/7715—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing cerium
- C09K11/7723—Phosphates
- C09K11/7724—Phosphates 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)
- Paper (AREA)
Abstract
746,273. Luminescent material. THORN ELECTRICAL INDUSTRIES, Ltd. Aug. 29, 1952 [Sept. 4, 1951], No. 20891/51. Class 39 (1). A luminescent material comprises the pyrophosphate of calcium or strontium or both activated by cerium in the ceric state with manganese as an additional activator, the ratio of calcium and strontium oxide to phosphorus pentoxide being 2 to 1.4-0.9. A lithium compound (up to 10 per cent) may be added in the preparation of the matrix. Specifications 512,154, 609,711, 746,271 and 746,272 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2089151A GB746273A (en) | 1951-09-04 | 1951-09-04 | Improvements in luminescent materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2089151A GB746273A (en) | 1951-09-04 | 1951-09-04 | Improvements in luminescent materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB746273A true GB746273A (en) | 1956-03-14 |
Family
ID=10153513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2089151A Expired GB746273A (en) | 1951-09-04 | 1951-09-04 | Improvements in luminescent materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB746273A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013081749A1 (en) * | 2011-11-29 | 2013-06-06 | General Electric Company | Phosphor blends for fluorescent lamps |
-
1951
- 1951-09-04 GB GB2089151A patent/GB746273A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013081749A1 (en) * | 2011-11-29 | 2013-06-06 | General Electric Company | Phosphor blends for fluorescent lamps |
US8531098B2 (en) | 2011-11-29 | 2013-09-10 | General Electric Company | Phosphor blends for fluorescent lamps |
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