GB722213A - Improvements in cathode-ray tubes - Google Patents
Improvements in cathode-ray tubesInfo
- Publication number
- GB722213A GB722213A GB14732/52A GB1473252A GB722213A GB 722213 A GB722213 A GB 722213A GB 14732/52 A GB14732/52 A GB 14732/52A GB 1473252 A GB1473252 A GB 1473252A GB 722213 A GB722213 A GB 722213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stencil
- degrees
- dot
- screens
- cathode
- 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
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2277—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by other processes, e.g. serigraphy, decalcomania
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Methods (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
722,213. Stencils. RADIO CORPORATION OF AMERICA. June 11, 1952 [June 16, 1951], No. 14732/52. Class 100 (2). [Also in Group XL (a)] Multi-dot and multi - line screens for cathode-ray tubes are made by the silk screen process; the different phosphors being applied through a dot or line stencil and a fabric base, and in order to eliminate moirÚ, the lines of the stencil apertures are arranged at an angle for dot screens of from five to ten degrees with the direction of the warp and weft of the fabric and for line screens of from forty-three to forty-five degrees. Each phosphor is applied at least twice to give superimposed layers which eliminate printing defects. Fig. 1 shows a gelatin, lacquer or similar stencil 5 bonded to a "silk" or metal gauze screen 3 in a wooden frame 4, the rows 5a, 5b of the stencil apertures being at an angle of seven degrees to the rows 3a, 3b of the " silk screen. Specification 702,468 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US231978A US2711690A (en) | 1951-06-16 | 1951-06-16 | Method of making a television screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB722213A true GB722213A (en) | 1955-01-19 |
Family
ID=22871395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14732/52A Expired GB722213A (en) | 1951-06-16 | 1952-06-11 | Improvements in cathode-ray tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2711690A (en) |
| DE (1) | DE942275C (en) |
| FR (1) | FR1056420A (en) |
| GB (1) | GB722213A (en) |
| NL (1) | NL170351B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8500734A (en) * | 1985-03-14 | 1986-10-01 | Philips Nv | COLOR IMAGE TUBE. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1456794A (en) * | 1919-12-09 | 1923-05-29 | Gestetner Ltd | Printing and duplicating |
| US2209499A (en) * | 1936-10-17 | 1940-07-30 | Charles A Wulf | Stencil screen and method of making the same |
| BE425528A (en) * | 1937-01-05 | |||
| US2310863A (en) * | 1941-01-25 | 1943-02-09 | Rca Corp | Luminescent screen |
| US2508267A (en) * | 1945-10-26 | 1950-05-16 | Du Mont Allen B Lab Inc | Color television |
| US2633426A (en) * | 1950-07-07 | 1953-03-31 | Gen Electric | Method of forming a powder coating on a surface |
-
0
- NL NLAANVRAGE7213783,A patent/NL170351B/en unknown
-
1951
- 1951-06-16 US US231978A patent/US2711690A/en not_active Expired - Lifetime
-
1952
- 1952-04-25 FR FR1056420D patent/FR1056420A/en not_active Expired
- 1952-06-11 GB GB14732/52A patent/GB722213A/en not_active Expired
- 1952-06-14 DE DER9256A patent/DE942275C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1056420A (en) | 1954-02-26 |
| DE942275C (en) | 1956-05-03 |
| NL170351B (en) | |
| US2711690A (en) | 1955-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE36877B1 (en) | Cathode ray tube construction | |
| US3947718A (en) | Shadow mask having elongated apertures concave to vertical center line and increasing in pitch along x-axis with distance from said line | |
| GB656207A (en) | Improvements in and relating to screens for cathode ray tubes in colour television systems | |
| GB1355308A (en) | Photographic method for printing a screen structure for a cathode ray tube | |
| US2611100A (en) | Temperature-compensated target assembly for color-kinescopes, etc. | |
| US2646521A (en) | Color television picture tube | |
| GB1071879A (en) | Making colour-phosphor mosaic screens | |
| GB562168A (en) | Improvements in colour television | |
| GB695772A (en) | Improvements in or relating to fluorescent screens for use in cathode ray tubes | |
| GB1306766A (en) | Black-surround colour picture tubes | |
| GB722213A (en) | Improvements in cathode-ray tubes | |
| GB1527260A (en) | Method and apparatus for manufacturing a colour cathode ray tube | |
| US3362804A (en) | Method of making cathode ray tube with integral light trapping filter | |
| US2630542A (en) | Multicolor television | |
| GB1323620A (en) | Shadow masks for use in colour picture tubes | |
| GB1358811A (en) | Cathode-ray tube having an apertured mask | |
| GB752204A (en) | Improvements in or relating to the manufacture of luminescent screens for cathode ray tubes | |
| ES454288A1 (en) | Cathode ray tube shadow mask with slotted apertures | |
| GB773339A (en) | Improvements in or relating to target structures for use in colour television tubes | |
| DE2258720C3 (en) | Color cathode ray tube with post-processing. acceleration | |
| PL126028B1 (en) | Picture tube with luminescent stripted screen | |
| GB1331716A (en) | Method of producing an apertured mask for a colour television cathode ray tube | |
| GB1414632A (en) | Cathode ray kinexcope construction | |
| ES419650A1 (en) | Cathode ray tube for displaying coloured pictures | |
| ES418150A1 (en) | Cathode ray tube display screen having overlapping triad elements and separated triads |