GB1216287A - Color picture tubes - Google Patents
Color picture tubesInfo
- Publication number
- GB1216287A GB1216287A GB49700/69A GB4970069A GB1216287A GB 1216287 A GB1216287 A GB 1216287A GB 49700/69 A GB49700/69 A GB 49700/69A GB 4970069 A GB4970069 A GB 4970069A GB 1216287 A GB1216287 A GB 1216287A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- deflection
- ring
- grid
- magnetic
- 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
- 230000007423 decrease Effects 0.000 abstract 2
- 230000035699 permeability Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000000463 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
- H01J29/70—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
-
- 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
- H01J29/006—Arrangements for eliminating unwanted temperature effects
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
1,216,287. Colour television tubes. SONY CORP. 9 Oct., 1969 [9 Oct., 1968], No. 49700/69. Heading H1D. In a colour television tube employing magnetic deflection and a shadow mask or a parallax grid, mis-registration of the beam due to thermal expansion of the mask or grid is corrected by a corresponding movement of the centre of deflection of the beam, which is achieved by shunting the magnetic deflection means with a material whose permeability varies with temperature. In one arrangement, Fig. 5 (not shown), a compensating ring is arranged on the neck of the tube on the gun side of the magnetic yoke so that as the temperature of the mask or grid rises, that of the compensating ring also rises. The ring comprises 30% Ni 70% Fe and has a permeability that decreases as the temperature increases, such decrease having the effect of moving the deflection centre towards the gun end of the tube. The compensating ring may be in the form of a clamp adapted to clamp the deflection yoke to the tube and may be in one or two parts, Figs. 6 and 7 (not shown). The compensating ring may be disposed inside the tube, and when the tube uses coplanar beams and electrostatic convergence plates, the ring may be arranged round the convergence plates (Fig. 8, not shown), or a pair of the convergence plates may be made of the magnetic material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP43073723A JPS4822364B1 (en) | 1968-10-09 | 1968-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1216287A true GB1216287A (en) | 1970-12-16 |
Family
ID=13526414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49700/69A Expired GB1216287A (en) | 1968-10-09 | 1969-10-09 | Color picture tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3831051A (en) |
| JP (1) | JPS4822364B1 (en) |
| FR (1) | FR2020262A1 (en) |
| GB (1) | GB1216287A (en) |
| NL (1) | NL6915187A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2506268C2 (en) * | 1975-02-14 | 1977-01-20 | Standard Elektrik Lorenz Ag | DEFLECTION SYSTEM FOR COLOR TELEVISION TUBES |
| NL188373C (en) * | 1978-02-06 | 1992-06-01 | Philips Nv | DEFLECTOR FOR COLOR TELEVISION IMAGE TUBES. |
| NL188484C (en) * | 1978-02-06 | 1992-07-01 | Philips Nv | DEFLECTOR FOR COLOR TELEVISION IMAGE TUBES. |
| JPS56135080A (en) * | 1980-03-27 | 1981-10-22 | Oki Electric Ind Co Ltd | Wire dot head |
| JPS5782949A (en) * | 1980-11-12 | 1982-05-24 | Hitachi Ltd | Electromagnetic focusing type cathode ray tube |
| FR2534065A1 (en) * | 1982-10-05 | 1984-04-06 | Videocolor Sa | PROCESS FOR TRANSFORMING A DEVIATOR FOR ITS USE FOR TUBES WITH SELF-CONTAINING IMAGES OF DIFFERENT DIMENSIONS AND DEVIATOR THUS OBTAINED |
| US4737752A (en) * | 1986-08-11 | 1988-04-12 | Megascan Technology, Inc. | Oscilloscope deflection yoke with heat dissipation means |
| AU2003276215A1 (en) * | 2002-11-04 | 2004-06-07 | Lg. Philips Displays | Display device comprising a deflection unit and a deflection unit for a display device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1239704A (en) * | 1959-11-03 | 1960-08-26 | Improvement in television deflections | |
| DE1144407B (en) * | 1960-03-24 | 1963-02-28 | Telefunken Patent | Device to avoid distortion of the light spot in cathode ray tubes |
| US3325758A (en) * | 1965-12-08 | 1967-06-13 | Varian Associates | Negative temperature coefficient shunt means for magnetic structures |
| US3408520A (en) * | 1966-11-01 | 1968-10-29 | Motorola Inc | Temperature responsive means for moving the yoke of a color television receiver to compensate for beam landing error during tube warmup |
| US3524093A (en) * | 1968-04-24 | 1970-08-11 | Helen C Haas | Time dependent color purity correction for a color cathode ray tube |
-
1968
- 1968-10-09 JP JP43073723A patent/JPS4822364B1/ja active Pending
-
1969
- 1969-09-30 US US00862411A patent/US3831051A/en not_active Expired - Lifetime
- 1969-10-08 NL NL6915187A patent/NL6915187A/xx unknown
- 1969-10-09 GB GB49700/69A patent/GB1216287A/en not_active Expired
- 1969-10-09 FR FR6934607A patent/FR2020262A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US3831051A (en) | 1974-08-20 |
| DE1950964A1 (en) | 1970-04-30 |
| DE1950964B2 (en) | 1976-07-08 |
| NL6915187A (en) | 1970-04-13 |
| JPS4822364B1 (en) | 1973-07-05 |
| FR2020262A1 (en) | 1970-07-10 |
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