GB528811A - Improvements in electric discharge lamps comprising luminescent materials - Google Patents
Improvements in electric discharge lamps comprising luminescent materialsInfo
- Publication number
- GB528811A GB528811A GB1447839A GB1447839A GB528811A GB 528811 A GB528811 A GB 528811A GB 1447839 A GB1447839 A GB 1447839A GB 1447839 A GB1447839 A GB 1447839A GB 528811 A GB528811 A GB 528811A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- silicate
- luminescent materials
- electric discharge
- discharge lamps
- 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
- C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Discharge Lamp (AREA)
Abstract
528,811. Luminescent materials. GENERAL ELECTRIC CO., Ltd., JENKINS, H. G., and McKEAG, A. H. May 15, 1939, No. 14478. [Class 39 (i)] The interior of a low-pressure mercury vapour lamp, which may also contain a rare gas, is coated with a luminescent silicate such as zinc orthosilicate, zinc mesodisilicate, zinc-beryllium silicate or cadmium silicate, mixed with a carbonate preferably of strontium or barium or a mixture thereof. The amount of carbonate is between 1 and 30 per cent, and in the case of zinc ortho-silicate is 5 per cent by weight of the silicate. According to the Provisional Specification the carbonates of calcium, zinc, cerium and thorium may be used. Specification 511,815 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1447839A GB528811A (en) | 1939-05-15 | 1939-05-15 | Improvements in electric discharge lamps comprising luminescent materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1447839A GB528811A (en) | 1939-05-15 | 1939-05-15 | Improvements in electric discharge lamps comprising luminescent materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB528811A true GB528811A (en) | 1940-11-07 |
Family
ID=10041916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1447839A Expired GB528811A (en) | 1939-05-15 | 1939-05-15 | Improvements in electric discharge lamps comprising luminescent materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB528811A (en) |
-
1939
- 1939-05-15 GB GB1447839A patent/GB528811A/en not_active Expired
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