US 8,509,609 B2 · Image stabilization control apparatus and control method thereof, optical apparatus, and imaging apparatus

Abstract

An image stabilization control apparatus having a compensation member comprises: first and second detection units that detect rotational and translational shakes, respectively, in the image stabilization control apparatus; a rotational shake amount calculation unit that finds a rotational shake amount based on an output of the first detection unit; a correction value calculation unit that calculates a correction value based on outputs from the first and second detection units; a suppression unit that suppresses the correction value based on the size of an output from the first and/or second detection units; a translational shake amount calculation unit that calculates a translational shake amount using the output of the first detection unit and the calculated correction value; and a driving unit that drives the compensation member based on the rotational and translational shake amounts, wherein the correction value is calculated based on the suppressed correction value.

Claims14

Dependent claims

An image stabilization control apparatus that includes a compensation member, the apparatus comprising:

a first detection unit that detects rotational shakes;
a second detection unit that detects translational shakes in the image stabilization control apparatus using a different method than the first detection unit;
a rotational shake amount calculation unit that finds a rotational shake amount based on an output of the first detection unit;
a correction value calculation unit that calculates a correction value based on outputs from the first and second detection units;
a suppression unit that calculates an upper-limit value of the correction value based on the size of an output from at least one of the first and second detection units and suppresses the correction value using the upper-limit value as an upper limit;
a translational shake amount calculation unit that calculates a translational shake amount using the output of the first detection unit and the correction value calculated by the correction value calculation unit;
and
a driving unit that drives the compensation member based on the rotational shake amount and the translational shake amount,
wherein the correction value calculation unit calculates the correction value based on the suppressed correction value.

6 more elements

A control method for an image stabilization control apparatus that includes a compensation member, the method comprising:

a first detecting step of detecting rotational shakes in the image stabilization control apparatus;
a second detecting step of detecting translational shakes in the image stabilization control apparatus using a different method than the first detecting step;
a rotational shake amount calculating step of finding a rotational shake amount based on the result of the first detecting step;
a correction value calculating step of calculating a correction value based on the results of the first and second detecting steps;
a suppressing step of calculating an upper-limit value of the correction value based on the size of the result of at least one of the first and second detecting steps and suppressing the correction value using the upper-limit value as an upper limit;
a translational shake amount calculating step of calculating a translational shake amount using the result of the first detecting step and the correction value calculated in the correction value calculating step;
and
a driving step of driving the compensation member based on the rotational shake amount and the translational shake amount,
wherein in the correction value calculating step, the correction value is calculated based on the suppressed correction value.

6 more elements

Dependencies are inferred from the claim text.

Image stabilization control apparatus and control method thereof, optical apparatus, and imaging apparatus

Life of this patent

Image stabilization control apparatus and control method thereof, optical apparatus, and imaging apparatus

Life of this patent

Abstract

Claims14