GB993270A - Cathode ray tube - Google Patents
Cathode ray tubeInfo
- Publication number
- GB993270A GB993270A GB17375/62A GB1737562A GB993270A GB 993270 A GB993270 A GB 993270A GB 17375/62 A GB17375/62 A GB 17375/62A GB 1737562 A GB1737562 A GB 1737562A GB 993270 A GB993270 A GB 993270A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beams
- tubes
- screen
- magnetic
- different
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 239000000696 magnetic material Substances 0.000 abstract 2
- 239000003086 colorant Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
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
- H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
- H01J29/506—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube guns in delta or circular configuration
-
- 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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
-
- 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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
- H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
993,270. Colour television tubes. RADIO CORPORATION OF AMERICA. May 7, 1962 [May 8, 1961], No. 17375/62. Heading H1D. In a cathode-ray tube comprising a plurality of electron guns 16, 17, 18 projecting beams of different velocities towards a screen 20, as shown a colour screen composed of superimposed phosphor layers 22, 24, 26 into which the beams penetrate to different extents to excite the various colours, the beams of higher velocity are shielded by tubes 76, 78 from the common deflection field to a sufficient degree for all the beams, despite their different velocities, to be deflected to the same extent. The deflection field is set up by a magnetic yoke 28 and the shields 76, 78 are composed of magnetic material and may be composite structures with inner and outer concentric tubes of different magnetic materials. The tubes 76, 78 are mounted on the end plates 42 of a dynamic convergence system 40. Beam centring magnetic polepieces 70, 72 are provided for the guns which may be mounted in a triangular arrangement or in planar array. The screen 20 may include non-luminescent separator layers between the phosphor layers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US108431A US3164737A (en) | 1961-05-08 | 1961-05-08 | Cathode ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993270A true GB993270A (en) | 1965-05-26 |
Family
ID=22322143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17375/62A Expired GB993270A (en) | 1961-05-08 | 1962-05-07 | Cathode ray tube |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3164737A (en) |
| BE (1) | BE624849A (en) |
| CH (1) | CH405411A (en) |
| DE (1) | DE1163368B (en) |
| DK (1) | DK118620B (en) |
| GB (1) | GB993270A (en) |
| NL (1) | NL278119A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE635894A (en) * | 1962-08-06 | |||
| US3250935A (en) * | 1964-08-04 | 1966-05-10 | Kentucky Electronics Inc | Matrix multiple gun assembly for cathode ray tube |
| US3462629A (en) * | 1966-05-09 | 1969-08-19 | Stromberg Carlson Corp | Self-aligning electron gun construction |
| DE2119340C2 (en) * | 1971-04-21 | 1982-12-30 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Electrode unit comprising three electron beam generating systems - having common convergence electrode sealed by melting flaps to three electrodes at same positive potential |
| JPS5126208B1 (en) * | 1971-05-18 | 1976-08-05 | ||
| BE793992A (en) * | 1972-01-14 | 1973-05-02 | Rca Corp | CATHODIC RAY TUBE |
| US4196370A (en) * | 1978-02-24 | 1980-04-01 | Rca Corporation | CRT generating three inline beams and having shunts for weakening center beam horizontal magnetic deflection and strengthening vertical deflection |
| US4396862A (en) * | 1978-05-01 | 1983-08-02 | Rca Corporation | Color picture tube with means for affecting magnetic deflection fields in electron gun area |
| US4634923A (en) * | 1979-11-15 | 1987-01-06 | Rca Corporation | Color picture tube having improved electron gun |
| US4370593A (en) * | 1980-12-30 | 1983-01-25 | Rca Corporation | In-line electron gun and method for modifying the same |
| US4556819A (en) * | 1983-12-13 | 1985-12-03 | Rca Corporation | Color picture tube having inline electron gun with coma correction members |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2727828A (en) * | 1952-03-18 | 1955-12-20 | Rca Corp | Method of making color-television screens |
| GB821542A (en) * | 1955-02-12 | 1959-10-07 | Emi Ltd | Improvements in or relating to cathode ray tubes |
-
0
- BE BE624849D patent/BE624849A/xx unknown
- NL NL278119D patent/NL278119A/xx unknown
-
1961
- 1961-05-08 US US108431A patent/US3164737A/en not_active Expired - Lifetime
-
1962
- 1962-05-07 DK DK206362AA patent/DK118620B/en unknown
- 1962-05-07 GB GB17375/62A patent/GB993270A/en not_active Expired
- 1962-05-08 CH CH551862A patent/CH405411A/en unknown
- 1962-05-08 DE DER32656A patent/DE1163368B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3164737A (en) | 1965-01-05 |
| DK118620B (en) | 1970-09-14 |
| BE624849A (en) | |
| NL278119A (en) | |
| CH405411A (en) | 1966-01-15 |
| DE1163368B (en) | 1964-02-20 |
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