GB1190815A - Improved Simplified Deflection System for a Plural Beam Cathode Ray Tube - Google Patents
Improved Simplified Deflection System for a Plural Beam Cathode Ray TubeInfo
- Publication number
- GB1190815A GB1190815A GB22642/67A GB2264267A GB1190815A GB 1190815 A GB1190815 A GB 1190815A GB 22642/67 A GB22642/67 A GB 22642/67A GB 2264267 A GB2264267 A GB 2264267A GB 1190815 A GB1190815 A GB 1190815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- horizontal
- vertical
- deflection
- size
- 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
- 238000004804 winding Methods 0.000 abstract 9
- 238000013016 damping Methods 0.000 abstract 2
- 229910000859 α-Fe Inorganic materials 0.000 abstract 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/28—Arrangements for convergence or focusing
-
- 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
- H01J29/702—Convergence correction arrangements therefor
- H01J29/705—Dynamic convergence systems
-
- 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
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
- H01J29/764—Deflecting by magnetic fields only using toroidal windings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/28—Arrangements for convergence or focusing
- H04N9/285—Arrangements for convergence or focusing using quadrupole lenses
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
1,190,815. Cathode-ray tube circuits &c. GENERAL ELECTRIC CO. 16 May, 1967 [23 Aug., 1966], No. 22642/67. Heading H4T. [Also in Division H1] A deflection system for a plural beam (e.g. in line three gun and red, green, blue) cathoderay tube comprises a deflection yoke 23 with vertical windings (89, 91) (Fig. 5, not shown) and horizontal windings (53, 55) (Fig. 4, not shown) on a truncated ferrite core (47) for example, to provide the main vertical and horizontal deflecting fields, the vertical and horizontal windings further including turns (93, 95, 97, 99 and 57, 59, 61, 63) to provide flux components perpendicular to the main vertical and horizontal fields respectively so that each beam produces a raster substantially parallel at all points to that produced by the other beams. The rasters may differ in size (Fig. 9, not shown). The horizontal size difference results from the correction forces overcoming parabolic errors and the vertical size differences mainly from gun misalignment. Vertical and horizontal static convergence and size correction assemblies 25, 27 may be energized by the sawtooth deflection currents applied directly to the size correction windings (184, 192 and 211, 213, 221 and 223 respectively) (Figs. 10 and 11, not shown), cylindrical ferrite magnets (183, 191 and 209, 219), diagonally polarized, being rotated to control the magnitude and polarity of the steady state field. Also the proximity of the C-shaped core members (179, 187 and 205, 215) to the internal polepieces (171, 173, 175, 177 and 201, 203) can be varied to control the field magnitude. Fourier series are disclosed corresponding to specific deflection yoke winding distributions. The deflection circuitry (Fig. 12) includes vertical output stage 33 with driver tube 233, vertical linearity control 243, output transformer 241 connected to first and second windings, 124 and 128, which are connected to size correction windings 184, 192 (also Fig. 10, not shown). The horizontal output stage 39 with driver tube 245 comprises a damping circuit including damping diode 261 to develop the sawtooth deflection circuit across the autotransformer. H.V. rectifier 269 is connected to a tertiary portion of the transformer to provide the C.R.T. high voltage. Secondary 271 is connected to deflection yoke windings 132, 136 and horizontal size correction windings 211, 213, 223 and 221.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US57441166A | 1966-08-23 | 1966-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1190815A true GB1190815A (en) | 1970-05-06 |
Family
ID=24296002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22642/67A Expired GB1190815A (en) | 1966-08-23 | 1967-05-16 | Improved Simplified Deflection System for a Plural Beam Cathode Ray Tube |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3430099A (en) |
| JP (1) | JPS5027966B1 (en) |
| DE (1) | DE1300962B (en) |
| GB (1) | GB1190815A (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3500114A (en) * | 1967-08-24 | 1970-03-10 | Sony Corp | Convergence system for a color picture tube |
| USRE29740E (en) * | 1968-02-05 | 1978-08-22 | Sony Corporation | Color cathode ray tube of the plural beam, single electron gun type |
| JPS4833331B1 (en) * | 1968-02-05 | 1973-10-13 | ||
| CA919243A (en) * | 1969-03-07 | 1973-01-16 | Rca Corporation | Toroidal electromagnetic deflection yoke |
| US3553523A (en) * | 1969-06-12 | 1971-01-05 | Sylvania Electric Prod | Convergence means for plural in-line beam cathode ray tube |
| NL148441B (en) * | 1969-07-09 | 1976-01-15 | Philips Nv | COLOR TV DISPLAY DEVICE EQUIPPED WITH AN ELECTRON BAM TUBE AND DEVICE COIL SYSTEM FOR USE THEREIN. |
| US3643192A (en) * | 1970-06-03 | 1972-02-15 | Rca Corp | Toroidal electromagnetic deflection yoke |
| US3631533A (en) * | 1970-06-10 | 1971-12-28 | Sylvania Electric Prod | High-efficiency winding for toroid yoke |
| JPS536489B1 (en) * | 1970-09-09 | 1978-03-08 | ||
| US3668580A (en) * | 1970-12-07 | 1972-06-06 | Rca Corp | Toroidal deflection yoke having asymmetrical windings |
| US3701065A (en) * | 1971-02-03 | 1972-10-24 | Rca Corp | Color picture tube beam convergence apparatus |
| US3735189A (en) * | 1971-03-19 | 1973-05-22 | Zenith Radio Corp | Blue droop correction circuit with a single supplemental correction coil |
| US3671896A (en) * | 1971-05-21 | 1972-06-20 | Sylvania Electric Prod | Deflection system for triad-beam cathode ray tube |
| US3671897A (en) * | 1971-07-08 | 1972-06-20 | Gte Sylvania Inc | Asymmetrical-wound toroid yoke cathode ray tube deflection system |
| BE793993A (en) * | 1972-01-14 | 1973-05-02 | Rca Corp | DEFLECTOR WINDING FOR CATHODIC TUBE WITH COPLANAR ELECTRONIC BARRELS |
| US3800176A (en) * | 1972-01-14 | 1974-03-26 | Rca Corp | Self-converging color image display system |
| US3879635A (en) * | 1973-02-06 | 1975-04-22 | Gen Electric | Improved convergence and triad distortion correction means for wide angle cathode ray tube |
| US4556857A (en) * | 1984-10-01 | 1985-12-03 | General Electric Company | Deflection yoke for small gun-base CRT |
| EP0218961B1 (en) * | 1985-09-27 | 1989-08-16 | Hitachi, Ltd. | Convergence correcting device capable of coma correction for use in a cathode ray tube having in-line electron guns |
| US4864195A (en) * | 1988-05-05 | 1989-09-05 | Rca Licensing Corp. | Color display system with dynamically varied beam spacing |
| US5086259A (en) * | 1989-03-17 | 1992-02-04 | Hitachi, Ltd. | System for converging a plurality of electron beams in cathode ray tube |
| EP0421523B1 (en) * | 1989-10-02 | 1995-06-28 | Koninklijke Philips Electronics N.V. | Colour display tube system with reduced spot growth |
| US5028850A (en) * | 1990-07-19 | 1991-07-02 | Rca Licensing Corporation | Deflection system with a controlled beam spot |
| JP3633115B2 (en) * | 1996-07-08 | 2005-03-30 | ソニー株式会社 | Deflection device |
| CN1409352A (en) * | 2001-10-01 | 2003-04-09 | 松下电器产业株式会社 | Color picture tube with improved horizontal resolution |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3002120A (en) * | 1954-08-02 | 1961-09-26 | Rca Corp | Beam convergence apparatus for tri-color kinescope |
| US2925542A (en) * | 1957-05-31 | 1960-02-16 | Gen Electric | Deflection and dynamic convergence system for multi-beam cathode ray tubes |
| US3192432A (en) * | 1962-09-24 | 1965-06-29 | Zenith Radio Corp | Electron beam deflection yoke |
-
1966
- 1966-08-23 US US574411A patent/US3430099A/en not_active Expired - Lifetime
-
1967
- 1967-05-16 GB GB22642/67A patent/GB1190815A/en not_active Expired
- 1967-08-22 DE DEG50921A patent/DE1300962B/en active Pending
-
1975
- 1975-01-21 JP JP50009204A patent/JPS5027966B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5027966B1 (en) | 1975-09-11 |
| US3430099A (en) | 1969-02-25 |
| DE1300962B (en) | 1969-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE | Patent expired |