Deflection yoke

A deflection yoke attached to a cathode ray tube to deflect an electron beam generated from an electron gun to an area of a screen, comprises:

• a coil separator having a horn shape;
• a horizontal deflection coil having a pair of first coils disposed on an inside of the coil separator to generate a horizontal deflection magnetic field to deflect the electron beam in a horizontal direction, each first coil having deflection coil portions, bent coil portions extended from respective ones of the deflection coil portion toward the screen, and a non-effective bent portion disposed between the bent coil portions to generate a magnetic field, which is in a direction to opposite to another magnetic field generated from a corresponding portion of the deflection coil portions disposed adjacent to the non-effective bent portion of the bent coil portion and weakens another magnetic field generated from the corresponding portion of the deflection coil portion, and having a vertical radius and a horizontal radius, which is different from the vertical radius;
• a vertical deflection coil having a pair of second coils disposed on an outside of the coil separator to generate a vertical deflection magnetic field to deflect the electron beam in a vertical direction;
• and
• a ferrite core having a cylindrical shape covering a portion of the deflection coil portions of the vertical deflection coil to strengthen the vertical deflection magnetic field and the horizontal deflection magnetic field.

A deflection yoke attached to a cathode ray tube to deflect an electron beam generated from an electron gun to an area of a screen, comprises:

• a coil separator;
• a horizontal deflection coil having a pair of first coils disposed on an inside of the coil separator to generate a horizontal deflection magnetic field to deflect the electron beam in a horizontal direction, and having a first vertical radius and a first horizontal radius which is greater than the first vertical radius;
• a
• vertical deflection coil having a pair of second coils disposed on an outside of the coil separator to generate a vertical deflection magnetic field to deflect the electron beam in a vertical direction, and having a second vertical radius and a second horizontal radius which is smaller than the second vertical radius;
• and
• a ferrite core having a cylindrical shape covering a portion of the vertical deflection coil to strengthen the vertical deflection magnetic field and the horizontal deflection magnetic field.