GB688895A - Improvements in the preparation of luminescent materials - Google Patents
Improvements in the preparation of luminescent materialsInfo
- Publication number
- GB688895A GB688895A GB1884447A GB1884447A GB688895A GB 688895 A GB688895 A GB 688895A GB 1884447 A GB1884447 A GB 1884447A GB 1884447 A GB1884447 A GB 1884447A GB 688895 A GB688895 A GB 688895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isotope
- activator
- radio
- phosphor
- active
- 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
- C09K11/04—Luminescent, e.g. electroluminescent, chemiluminescent materials containing natural or artificial radioactive elements or unspecified radioactive elements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
688,895. Luminescent materials. PHILIPS LAMPS, Ltd., and ROTHSCHILD, S. Aug. 14, 1948 [July 15, 1947], No. 18844/47. Class 39(i) At least one of the constituents of a luminescent material is a radio-active element or isotope forming an integral constituent of the phosphor, and not a mechanical addition for self-excitation purposes to an already complete phosphor. Specific examples include the preparation of a SrS phosphor containing the radio-active isotope Sr 90 in the matrix, a silver-activated ZnS phosphor containing the isotope Ag 110 in the activator, and a lead-activated SrS phosphor containing the isotope Pb 214 (Ra B) as activator. The Provisional Specification also refers to the use of the radio-active isotope Cu 64 as an activator for zinc sulphide phosphors. Reference has been directed by the Comptroller to the document "Fluoro-chemistry," by Jack De Ment (pages 324-328).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1884447A GB688895A (en) | 1947-07-15 | 1947-07-15 | Improvements in the preparation of luminescent materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1884447A GB688895A (en) | 1947-07-15 | 1947-07-15 | Improvements in the preparation of luminescent materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB688895A true GB688895A (en) | 1953-03-18 |
Family
ID=10119372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1884447A Expired GB688895A (en) | 1947-07-15 | 1947-07-15 | Improvements in the preparation of luminescent materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB688895A (en) |
-
1947
- 1947-07-15 GB GB1884447A patent/GB688895A/en not_active Expired
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