Angular velocity detection apparatus

1. An anti-shake apparatus for image stabilizing, comprising:

a first angular velocity sensor that is used for detecting a motion around an axis of a second direction, said second direction being perpendicular to a first direction and an optical axis of a photographing optical system, said first direction being perpendicular to said optical axis;

a second angular velocity sensor that is used for detecting a motion around an axis of said first direction; and

a controller that controls said first and second angular velocity sensors, performs an anti-shake operation based on an output signal from said first angular velocity sensor and an output signal from said second angular velocity sensor, and performs a first angular error correction processing operation and a second angular error correction processing operation in said anti-shake operation;

in said second angular error correction processing operation, an output error caused by an angle of inclination of said second angular velocity sensor being corrected by using a first correction coefficient that is a ratio of a second amplitude to a first amplitude;

in said first angular error correction processing operation, an output error caused by an angle of inclination of said first angular velocity sensor being corrected by using a second correction coefficient that is a ratio of a third amplitude to a fourth amplitude;

said first amplitude being an amplitude of an output value from said first angular velocity sensor when said anti-shake apparatus is in a first motion around the axis of said second direction, but is not in a second motion around the axis of said first direction;

said second amplitude being an amplitude of an output value from said second angular velocity sensor when said anti-shake apparatus is in said first motion, but is not in said second motion;

said third amplitude being an amplitude of an output value from said first angular velocity sensor when said anti-shake apparatus is in said second motion, but is not in said first motion; and

said fourth amplitude being an amplitude of an output value from said second angular velocity sensor when said anti-shake apparatus is in said second motion, but is not in said first motion.

2. The anti-shake apparatus according to claim 1 , wherein said inclination of said first angular velocity sensor is indicated by an angle between a detection axis of said first angular velocity sensor and said second direction; and

said inclination of said second angular velocity sensor is indicated by an angle between a detection axis of said second angular velocity sensor and said first direction.

3. The anti-shake apparatus according to claim 1 , wherein said first angular error correction processing operation is a calculation of a product of said output signal from said second angular velocity sensor and said second correction coefficient, a result of the product is then subtracted from said output signal of said first angular velocity sensor; and

said second angular error correction processing operation is a calculation of a product of said output signal from said first angular velocity sensor and said first correction coefficient, a result of the product is then subtracted from said output signal of said second angular velocity sensor.

4. An angular velocity detection apparatus comprising:

a first angular velocity sensor that is used for detecting a motion around an axis of a second direction, said second direction being perpendicular to a first direction;

a second angular velocity sensor that is used for detecting a motion around an axis of said first direction; and

a controller that controls said first and second angular velocity sensors, and performs a first angular error correction processing operation and a second angular error correction processing operation;

in said second angular error correction processing operation, an output error caused by an angle of inclination of said second angular velocity sensor being corrected by using a first correction coefficient that is a ratio of a second amplitude to a first amplitude;

in said first angular error correction processing operation, an output error caused by an angle of inclination of said first angular velocity sensor being corrected by using a second correction coefficient that is a ratio of a third amplitude to a fourth amplitude;

said first amplitude being an amplitude of an output value from said first angular velocity sensor when said angular velocity detection apparatus is in a first motion around the axis of said second direction, but is not in a second motion around the axis of said first direction;

said second amplitude being an amplitude of an output value from said second angular velocity sensor when said angular velocity detection apparatus is in said first motion, but is not in said second motion;

said third amplitude being an amplitude of an output value from said first angular velocity sensor when said angular velocity detection apparatus is in said second motion, but is not in said first motion; and

said fourth amplitude being an amplitude of an output value from said second angular velocity sensor when said angular velocity detection apparatus is in said second motion, but is not in said first motion.