GB1256195A - Electrostatic deflection type cathode-ray tube with a plurality of electron guns - Google Patents
Electrostatic deflection type cathode-ray tube with a plurality of electron gunsInfo
- Publication number
- GB1256195A GB1256195A GB35556/70A GB3555670A GB1256195A GB 1256195 A GB1256195 A GB 1256195A GB 35556/70 A GB35556/70 A GB 35556/70A GB 3555670 A GB3555670 A GB 3555670A GB 1256195 A GB1256195 A GB 1256195A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guns
- potential
- mesh
- electron guns
- 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
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/51—Arrangements for controlling convergence of a plurality of beams by means of electric field only
Abstract
1,256,195. Cathode-ray display tubes. MATSUSHITA ELECTRONICS CORP. 22 July, 1970 [23 July, 1969], No. 35556/70. Heading H1D. A cathode-ray display tube provided with two inclined electron guns 1 and 2 and with a post-deflection acceleration system, is characterized by the provision of a mesh electrode 10, Fig. 3, which co-operates with a wall coating 12 to form a divergent lens (shown diagrammatically at 15) so that the rasters scanned by the two guns may coincide. The mesh 3 may be mounted on the end of a cylindrical shield 14 and is preferably surrounded by a lens-correcting annulus 11 which may be connected to it or may be operated at an independent potential. The wall coating 12 extends along the envelope to the metal layer 13 behind the phosphor screen 4. In operation the potential V3 of the mesh may be 800-3000 V and the potential V4 of the coating may be two to ten times as much and may lie in the range 4-25 kV. The angle between the axes of the two guns may be 5-15 degrees.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44059562A JPS4819097B1 (en) | 1969-07-23 | 1969-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1256195A true GB1256195A (en) | 1971-12-08 |
Family
ID=13116790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35556/70A Expired GB1256195A (en) | 1969-07-23 | 1970-07-22 | Electrostatic deflection type cathode-ray tube with a plurality of electron guns |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3708714A (en) |
| JP (1) | JPS4819097B1 (en) |
| DE (1) | DE2036451C3 (en) |
| FR (1) | FR2055496A5 (en) |
| GB (1) | GB1256195A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3783326A (en) * | 1972-09-18 | 1974-01-01 | Rca Corp | Magnetically-focussed cathode-ray tube comprising a tilted and skewed off-axis electron gun |
| DE2804029A1 (en) * | 1978-01-31 | 1979-08-02 | Licentia Gmbh | CRT with two beam electron gun - has such gun position that beams are inclined to tube axis and when not deflected intersect it at screen |
| US4196371A (en) * | 1978-04-05 | 1980-04-01 | Tektronix, Inc. | Shock-absorbing means for mesh-carrying member of a cathode ray tube |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455736A (en) * | 1935-01-31 | 1936-10-27 | Philips Nv | Improvements in cathode ray tubes |
| US2933640A (en) * | 1958-04-30 | 1960-04-19 | Bell Telephone Labor Inc | Pulse coincidence detecting tube |
| NL6717636A (en) * | 1967-12-22 | 1969-06-24 | ||
| US3537097A (en) * | 1968-01-02 | 1970-10-27 | Donald G Gumpertz | System including a cathode ray display tube for providing a visual indication of a plurality of characters |
-
1969
- 1969-07-23 JP JP44059562A patent/JPS4819097B1/ja active Pending
-
1970
- 1970-07-17 US US00055678A patent/US3708714A/en not_active Expired - Lifetime
- 1970-07-22 GB GB35556/70A patent/GB1256195A/en not_active Expired
- 1970-07-22 DE DE2036451A patent/DE2036451C3/en not_active Expired
- 1970-07-22 FR FR7027101A patent/FR2055496A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2036451C3 (en) | 1974-05-09 |
| DE2036451A1 (en) | 1971-02-04 |
| JPS4819097B1 (en) | 1973-06-11 |
| US3708714A (en) | 1973-01-02 |
| FR2055496A5 (en) | 1971-05-07 |
| DE2036451B2 (en) | 1973-10-18 |
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