Cathode ray tube having a cancel coil for earth magnetism
Image rotation of a cathode ray tube caused by the influence of earth magnetism can be suppressed. An image rotation correcting coil for generating a magnetic field of the direction opposite to that of a horizontal earth magnetism component of the direction vertical to the picture tube is disposed b...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Image rotation of a cathode ray tube caused by the influence of earth magnetism can be suppressed. An image rotation correcting coil for generating a magnetic field of the direction opposite to that of a horizontal earth magnetism component of the direction vertical to the picture tube is disposed between a deflection yoke formed at the outside of a tube envelope of a cathode ray tube and an anode button. |
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