GB1369508A - Character generation cathode ray tube - Google Patents
Character generation cathode ray tubeInfo
- Publication number
- GB1369508A GB1369508A GB4189871A GB4189871A GB1369508A GB 1369508 A GB1369508 A GB 1369508A GB 4189871 A GB4189871 A GB 4189871A GB 4189871 A GB4189871 A GB 4189871A GB 1369508 A GB1369508 A GB 1369508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microns
- sept
- conductivity
- charge
- ray tube
- 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
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
- H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/58—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output
- H01J31/585—Monoscopes
Landscapes
- Electron Beam Exposure (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
1369508 Cathode-ray tubes MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 8 Sept 1971 [9 Sept 1970] 41898/71 Heading H1D The target 30, Fig. 3, of a monoscope comprises a semi-conductive substrate of silicon covered with a silicon dioxide layer which is selectively removed to provide a fount of characters 31. The target may be made by a photo-resist process and each character may be accommodated within a square 200 x 200 microns in size. The silicon substrate is preferably doped with antimony sulphide to increase its conductivity and a small amount of antimony sulphide may be diffused into the oxide layer to increase its conductivity and thereby prevent accumulation of charge upon it when it is scanned by an electron beam. Alternatively, as illustrated in Fig. 3, the oxide layer may be divided up by a mosaic of lines 32 2 microns thick and 5 microns apart to prevent concentration of charge.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7946270 | 1970-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1369508A true GB1369508A (en) | 1974-10-09 |
Family
ID=13690534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4189871A Expired GB1369508A (en) | 1970-09-09 | 1971-09-08 | Character generation cathode ray tube |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA949148A (en) |
| DE (1) | DE2145201C2 (en) |
| FR (1) | FR2107430A5 (en) |
| GB (1) | GB1369508A (en) |
| NL (1) | NL7112419A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3074056A (en) * | 1960-03-28 | 1963-01-15 | Itt | System for large-area display of pictorial and alpha-numeric information |
| GB1069763A (en) * | 1964-08-07 | 1967-05-24 | Dick Co Ab | Apparatus for generating electrical signals representative of characters to be displayed or printed |
-
1971
- 1971-09-08 FR FR7132443A patent/FR2107430A5/fr not_active Expired
- 1971-09-08 GB GB4189871A patent/GB1369508A/en not_active Expired
- 1971-09-09 NL NL7112419A patent/NL7112419A/xx unknown
- 1971-09-09 DE DE19712145201 patent/DE2145201C2/en not_active Expired
- 1971-09-09 CA CA122,459A patent/CA949148A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU3316871A (en) | 1973-03-15 |
| DE2145201C2 (en) | 1982-04-01 |
| FR2107430A5 (en) | 1972-05-05 |
| NL7112419A (en) | 1972-03-13 |
| DE2145201A1 (en) | 1972-03-16 |
| CA949148A (en) | 1974-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) |