GB711003A - Improvements in cathode-ray tubes - Google Patents
Improvements in cathode-ray tubesInfo
- Publication number
- GB711003A GB711003A GB14731/52A GB1473152A GB711003A GB 711003 A GB711003 A GB 711003A GB 14731/52 A GB14731/52 A GB 14731/52A GB 1473152 A GB1473152 A GB 1473152A GB 711003 A GB711003 A GB 711003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dot
- aluminium
- phosphor
- layer
- screen
- 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
-
- 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
-
- 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
- H01J29/185—Luminescent screens measures against halo-phenomena
-
- 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
- H01J29/28—Luminescent screens with protective, conductive or reflective layers
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
711,003. Luminescent screens. RADIO CORPORATION OF AMERICA. June 11, 1952 [June 16, 1951], No. 14731/52. Class 39(1) A screen comprises a multiplicity of discrete electron sensitive light-emitting elements backed by an electron permeable layer also forming a multiplicity of substantially concave miniature light reflectors each of which backs and optically isolates an individual light-emitting element. A mosaic of discrete dot-like phosphor areas 15, .005-.015 inches in diameter, are laid down on a glass support by printing through a stencil and a silk or metal gauze screen. The surface of the dot layer is then coated with a film 16 e.g. of aluminium which flows to an undulating contour so that each individual reflector 16a, 16b encloses a phosphor dot. The dot layer may be of phosphors of differing colour responses red, blue and green. In a modification, Fig. 4 (not shown), the screen is of tricolour line type and the sub-miniature reflectors are trough shaped. The aluminium layer is applied by first covering the phosphor with a vaporizable substance, e.g. collodion, and the metal evaporated on in a vacuum, the collodion being removed by heat allowing the aluminium to settle.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US711003XA | 1951-06-16 | 1951-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB711003A true GB711003A (en) | 1954-06-23 |
Family
ID=22099255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14731/52A Expired GB711003A (en) | 1951-06-16 | 1952-06-11 | Improvements in cathode-ray tubes |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE512004A (en) |
FR (1) | FR1055133A (en) |
GB (1) | GB711003A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2520883A1 (en) * | 1982-02-01 | 1983-08-05 | Nippon Sheet Glass Co Ltd | PLATE LENS AND METHOD OF MANUFACTURING THE SAME |
-
0
- BE BE512004D patent/BE512004A/xx unknown
-
1952
- 1952-04-24 FR FR1055133D patent/FR1055133A/en not_active Expired
- 1952-06-11 GB GB14731/52A patent/GB711003A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2520883A1 (en) * | 1982-02-01 | 1983-08-05 | Nippon Sheet Glass Co Ltd | PLATE LENS AND METHOD OF MANUFACTURING THE SAME |
Also Published As
Publication number | Publication date |
---|---|
FR1055133A (en) | 1954-02-16 |
BE512004A (en) |
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