Patent ID: 9131156
Filing Date: 2015-09-08
Classification: G02B,G03B,H04N

Abstract:
1. An amount-of-shake sensing apparatus, comprising: an angular velocity sensor which detects an angular velocity concerning rotational motion of a casing, an acceleration sensor which detects an acceleration applied to the casing, a movement calculator which calculates an amount of movement of the casing based on the angular velocity and the acceleration, wherein: the movement calculator executes: a radius-of-rotation calculation operation for calculating a radius of rotation from a change of an amount of a velocity found by time integration of the acceleration, and the angular velocity, a velocity calculation operation in which during a given time from a start of exposure, the velocity is calculated based on the angular velocity and the radius of rotation calculated before the start of exposure, and after a lapse of the given time, the acceleration is cumulatively added to the velocity detected during the given time to calculate the velocity, and an amount-of-movement calculation operation for time-integrating the velocity calculated in the velocity calculation operation to calculate the amount of movement.