Patent ID: 9563068
Date: 2017-02-07
CPC Classifications: G02B,H04N

Claim:
1. An image shake correction device comprising: a first correction unit configured to optically correct, by moving a first correction member, an image shake of a subject image caused by shaking; a second correction unit configured to optically correct, by moving a second correction member, an image shake of a subject image caused by shaking, the second correction unit being disposed along an optical axis at a location that is different from that of the first correction unit; and a processor executing a program stored in a memory so as to function as a control unit configured to control an execution of the correction of the image shake by control of the first correction unit and the second correction unit after correcting a drive deviation between the first correction unit and the second correction unit, wherein the control unit controls the first correction unit based on a shake signal indicating shaking detected by a detection unit, wherein the control unit processes the shake signal by using a lens model having a drive characteristic with respect to a target position of the first correction unit, and controls the second correction unit based on the processed shake signal, wherein the lens model is configured by a mathematical model indicating a frequency characteristic of a phase difference and an amplitude difference of a position of the first correction unit with respect to the target position of the first correction unit, and wherein the control unit processes the shake signal by using the mathematical model to output a target position signal of the second correction unit for controlling the second correction unit in synchronization with the first correction unit, and thereby controls the second correction unit based on the target position signal.