ES381544A1 - Colour television display arrangement - Google Patents
Colour television display arrangementInfo
- Publication number
- ES381544A1 ES381544A1 ES381544A ES381544A ES381544A1 ES 381544 A1 ES381544 A1 ES 381544A1 ES 381544 A ES381544 A ES 381544A ES 381544 A ES381544 A ES 381544A ES 381544 A1 ES381544 A1 ES 381544A1
- Authority
- ES
- Spain
- Prior art keywords
- coils
- currents
- tube
- deflection
- wound
- 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
- H01J29/70—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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
- H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Details Of Television Scanning (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
In a colour television tube isotropic astigmatism is corrected by providing four toroidal correction coils 20-23, Fig. 3, which are arranged to produce a quadrupole field and which are fed with currents proportional to the squares of the deflection currents. As shown in Fig. 3 the coils 20-23 may be wound in the gaps between the deflection coils 25 and 26 on a common core coils 20 and 23 are wound in the opposite sense to coils 21 and 22 so that when the coils are energized in series a quadruple field is produced (Fig. 4, not shown). As an alternative the coils 20-23 may be located on the neck of the tube underneath the deflection coils. When the tube uses three electron guns in delta formation the usual dynamic convergence unit is provided, and the correction coils are fed with currents of the form ax2-by2 adjustable currents proportional to x or y may be added to correct for asymmetry between the coil halves or for gun alignment errors (Fig. 11, not shown). When the tube uses three co-planar beams, or if the tube is of the single beam index type, the coils are supplied with currents of the form ax2 + by2, and a separate convergence unit is not necessary.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6910495A NL148441B (en) | 1969-07-09 | 1969-07-09 | COLOR TV DISPLAY DEVICE EQUIPPED WITH AN ELECTRON BAM TUBE AND DEVICE COIL SYSTEM FOR USE THEREIN. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES381544A1 true ES381544A1 (en) | 1973-04-01 |
Family
ID=19807421
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES381544A Expired ES381544A1 (en) | 1969-07-09 | 1970-07-07 | Colour television display arrangement |
ES414026A Expired ES414026A1 (en) | 1969-07-09 | 1973-04-24 | Colour television display arrangement |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES414026A Expired ES414026A1 (en) | 1969-07-09 | 1973-04-24 | Colour television display arrangement |
Country Status (11)
Country | Link |
---|---|
JP (2) | JPS5527495B1 (en) |
AT (1) | AT304658B (en) |
AU (2) | AU6817774A (en) |
CA (1) | CA997866B (en) |
DE (1) | DE2031837C3 (en) |
DK (1) | DK142480B (en) |
ES (2) | ES381544A1 (en) |
FR (1) | FR2051641B1 (en) |
GB (3) | GB1323154A (en) |
NL (1) | NL148441B (en) |
SE (2) | SE383666B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3930185A (en) * | 1974-05-20 | 1975-12-30 | Rca Corp | Display system with simplified convergence |
US3961223A (en) * | 1975-03-04 | 1976-06-01 | United Technologies Corporation | Astigmatic focus correction circuit |
US4028585A (en) | 1975-03-27 | 1977-06-07 | U.S. Philips Corporation | Circuit for generating a correction current for correcting for deflection errors on the display screen of a color television display tube |
NL7609374A (en) * | 1976-08-24 | 1978-02-28 | Philips Nv | DEVICE FOR DISPLAYING TELEVISION IMAGES, DEVICE COIL SYSTEM FOR SUCH DEVICE AND PICTURE TUBE FITTED WITH SUCH DEFLECTION COIL SYSTEM. |
US4117434A (en) * | 1977-01-19 | 1978-09-26 | General Electric Company | Hybrid deflection system with quadripolar correction coils |
JPS5534552A (en) * | 1978-08-31 | 1980-03-11 | Mitsubishi Electric Corp | Cathode-ray tube device |
NL8004114A (en) * | 1980-07-17 | 1982-02-16 | Philips Nv | COLOR IMAGE TUBE WITH DEFLECTION YEAR AND DEFLECTION Yoke FOR COLOR IMAGE TUBE. |
DE69020478T2 (en) * | 1989-10-02 | 1996-02-22 | Philips Electronics Nv | Color picture tube system with reduced stain growth. |
US5028850A (en) * | 1990-07-19 | 1991-07-02 | Rca Licensing Corporation | Deflection system with a controlled beam spot |
US5327051A (en) * | 1990-07-19 | 1994-07-05 | Rca Thomson Licensing Corporation | Deflection system with a pair of quadrupole arrangements |
US5146142A (en) * | 1992-01-28 | 1992-09-08 | North American Philips Corporation | Dynamic focussing signal power amplifier for magnetically focussed raster scan cathode ray tube |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430099A (en) * | 1966-08-23 | 1969-02-25 | Gen Electric | Simplified deflection system for plural in-line beam cathode ray tube |
-
1969
- 1969-07-09 NL NL6910495A patent/NL148441B/en not_active IP Right Cessation
-
1970
- 1970-06-26 DE DE19702031837 patent/DE2031837C3/en not_active Expired
- 1970-07-06 GB GB3271670A patent/GB1323154A/en not_active Expired
- 1970-07-06 DK DK351470A patent/DK142480B/en unknown
- 1970-07-06 GB GB1224270A patent/GB1323156A/en not_active Expired
- 1970-07-06 AT AT607770A patent/AT304658B/en not_active IP Right Cessation
- 1970-07-06 GB GB1224173A patent/GB1323155A/en not_active Expired
- 1970-07-07 SE SE803573A patent/SE383666B/en unknown
- 1970-07-07 ES ES381544A patent/ES381544A1/en not_active Expired
- 1970-07-07 SE SE944470A patent/SE369364B/xx unknown
- 1970-07-09 JP JP5955170A patent/JPS5527495B1/ja active Pending
- 1970-07-09 FR FR7025532A patent/FR2051641B1/fr not_active Expired
-
1973
- 1973-04-24 ES ES414026A patent/ES414026A1/en not_active Expired
- 1973-11-28 CA CA186,916A patent/CA997866B/en not_active Expired
-
1974
- 1974-04-22 AU AU68177/74A patent/AU6817774A/en not_active Expired
- 1974-09-26 AU AU73742/74A patent/AU7374274A/en not_active Expired
-
1975
- 1975-01-22 JP JP880975A patent/JPS5649034B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2065490A1 (en) | 1973-10-11 |
JPS5649034B1 (en) | 1981-11-19 |
SE383666B (en) | 1976-03-22 |
AU6817774A (en) | 1974-07-04 |
JPS5527495B1 (en) | 1980-07-21 |
FR2051641A1 (en) | 1971-04-09 |
FR2051641B1 (en) | 1975-01-10 |
DE2065490B2 (en) | 1975-07-17 |
AU7374274A (en) | 1975-01-09 |
GB1323154A (en) | 1973-07-11 |
SE369364B (en) | 1974-08-19 |
NL148441B (en) | 1976-01-15 |
DK142480C (en) | 1981-03-23 |
GB1323155A (en) | 1973-07-11 |
ES414026A1 (en) | 1976-02-01 |
NL6910495A (en) | 1971-01-12 |
GB1323156A (en) | 1973-07-11 |
DE2031837C3 (en) | 1974-10-10 |
DE2031837A1 (en) | 1971-01-14 |
AT304658B (en) | 1973-01-25 |
DK142480B (en) | 1980-11-03 |
DE2031837B2 (en) | 1974-03-21 |
CA997866B (en) | 1976-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1391798A (en) | Magnetic beam adjusting arrangements | |
IE43761L (en) | Astigmatic focus correction | |
ES381544A1 (en) | Colour television display arrangement | |
ES8204260A1 (en) | Color TV display system | |
ES477440A1 (en) | Deflection unit for color television display tubes | |
GB1505036A (en) | Raster distortion correction circuit | |
ES441342A1 (en) | Display system utilizing beam shape correction | |
ES477438A1 (en) | Deflection unit for color television display tubes | |
ES351782A1 (en) | Color television display device | |
GB1502088A (en) | Cathode ray tube deflection unit | |
GB1246199A (en) | Colour picture tube | |
GB854912A (en) | Deflection yokes for cathode-ray tubes | |
ES407411A1 (en) | Colour television display apparatus provided with a cathode-ray tube | |
GB1478059A (en) | Inline electron gun having a convergence assembly | |
GB1385747A (en) | Deflection yoke for use with in-line electron guns | |
GB1442723A (en) | Colour cathode ray tube apparatus | |
ES440058A1 (en) | Deflection unit for colour television | |
US3611221A (en) | Convergence yoke apparatus for color television receiver | |
GB1216436A (en) | Color picture tube | |
JPS5259526A (en) | Color picture tube with deflection magnetic field control elements | |
GB1244328A (en) | Improvements in or relating to colour television receivers | |
JPS54929A (en) | Deflector for in-line type color cathode ray tube | |
JPS55115243A (en) | Deflector | |
GB1454679A (en) | Apparatus for the deflection and convergence correction of electron beams in colour television tubes | |
ES397752A1 (en) | Beam convergence exciter for shadow mask color picture tube |