GB1031374A - Electric discharge tubes - Google Patents
Electric discharge tubesInfo
- Publication number
- GB1031374A GB1031374A GB7238/62A GB723862A GB1031374A GB 1031374 A GB1031374 A GB 1031374A GB 7238/62 A GB7238/62 A GB 7238/62A GB 723862 A GB723862 A GB 723862A GB 1031374 A GB1031374 A GB 1031374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- matrix
- grid
- grids
- switching
- elemental beams
- 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
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/128—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digitally controlled display tubes
Landscapes
- Electron Sources, Ion Sources (AREA)
Abstract
1,031,374. Cathode-ray tubes. RANK ORGANISATION Ltd. Feb. 15, 1963 [Feb. 23, 1962], No. 7238/62. Heading H1D. In a tube of the kind described in Specification 975,251, one or more grids are provided between the electron source 12, and switching matrix 17 so that electrons reach the matrix 17 in the form of a number of parallel elemental beams, and switching is facilitated. As shown, the tube comprises a control grid 14, an accelerating grid 24 and further grids 25-29, the apertures in the grids being aligned with those in matrix 17. Grid 25 may be at a low positive potential so that the switching potentials required at matrix 17 for selectively passing elemental beams are low. Alternatively, grid 25 may be more positive than grid 24 and may be close to matrix 17 for preventing interference between adjacent elemental beams. Grid 26 extracts electrons from matrix 17 and accelerates them in conjunction with further accelerating and collimating grids 27-29 which may be operated as Einzel lenses. The elemental beams passing matrix 17 are deflected on to a phosphor screen, or may form a charge pattern on a dielectric screen, or may impinge on an array of target electrodes.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL293746D NL293746A (en) | 1962-02-23 | ||
GB7238/62A GB1031374A (en) | 1962-02-23 | 1962-02-23 | Electric discharge tubes |
FR925603A FR1362465A (en) | 1962-02-23 | 1963-02-21 | Electric discharge tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7238/62A GB1031374A (en) | 1962-02-23 | 1962-02-23 | Electric discharge tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1031374A true GB1031374A (en) | 1966-06-02 |
Family
ID=9829297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7238/62A Expired GB1031374A (en) | 1962-02-23 | 1962-02-23 | Electric discharge tubes |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR1362465A (en) |
GB (1) | GB1031374A (en) |
NL (1) | NL293746A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1951252A1 (en) * | 1968-10-12 | 1970-10-01 | Ise Electronics Corp | Cathode ray tubes for reproducing letters, numbers or patterns |
-
0
- NL NL293746D patent/NL293746A/xx unknown
-
1962
- 1962-02-23 GB GB7238/62A patent/GB1031374A/en not_active Expired
-
1963
- 1963-02-21 FR FR925603A patent/FR1362465A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1951252A1 (en) * | 1968-10-12 | 1970-10-01 | Ise Electronics Corp | Cathode ray tubes for reproducing letters, numbers or patterns |
Also Published As
Publication number | Publication date |
---|---|
NL293746A (en) | |
FR1362465A (en) | 1964-06-05 |
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