GB444949A - Improvements in and relating to fluorescent screens - Google Patents
Improvements in and relating to fluorescent screensInfo
- Publication number
- GB444949A GB444949A GB3385835A GB3385835A GB444949A GB 444949 A GB444949 A GB 444949A GB 3385835 A GB3385835 A GB 3385835A GB 3385835 A GB3385835 A GB 3385835A GB 444949 A GB444949 A GB 444949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- less
- relating
- fluorescent screens
- fluorescent
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)
Landscapes
- Luminescent Compositions (AREA)
Abstract
444,949. Fluorescent screens. BOSCH, F. J. G. VAN DEN, 14, Norman's Buildings, Central Street, St. Luke's. London. Dec. 6, 1935, No. 33858. [Class 98 (i)] A fluorescent screen material comprising a mixture by weight of not less than 55 per cent and not more than 65 per cent of barium tungstate, not less than 25 per cent and not more than 35 per cent of zinc phosphate and not less than 5 per cent and not more than 15 per cent of zinc silicate emits a creamywhite light under the action of cathode rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3385835A GB444949A (en) | 1935-12-06 | 1935-12-06 | Improvements in and relating to fluorescent screens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3385835A GB444949A (en) | 1935-12-06 | 1935-12-06 | Improvements in and relating to fluorescent screens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB444949A true GB444949A (en) | 1936-03-31 |
Family
ID=10358345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3385835A Expired GB444949A (en) | 1935-12-06 | 1935-12-06 | Improvements in and relating to fluorescent screens |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB444949A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767639C (en) * | 1937-10-29 | 1953-02-02 | Telefunken Gmbh | Luminescent screen for image decomposition, especially for television transmission tubes |
-
1935
- 1935-12-06 GB GB3385835A patent/GB444949A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767639C (en) * | 1937-10-29 | 1953-02-02 | Telefunken Gmbh | Luminescent screen for image decomposition, especially for television transmission tubes |
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