| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens unit driving apparatus with a closed-loop anti-shake structure.SOLUTION: The lens unit driving apparatus with the closed-loop anti-shake structure is disclosed. The closed-loop anti-shake structure comprises: a lens holder including a coil; a frame receiving the lens holder and including a plurality of magnets; a driving circuit board disposed under the frame and including a plurality of coils corresponding to the magnets; a plurality of first set of elastic bodies configured such that the lens holder remains movable in a direction of a first axis with respect to the frame; a plurality of second set of elastic bodies configured such that the frame remains movable in a direction perpendicular to the first axis with respect to the driving circuit board; a first optical module and a first optical reference object respectively disposed at the driving circuit board and the lens holder, the first optical module sensing a relative movement of the first optical reference object so as to sense a movement of the lens holder in the direction of the first axis.SELECTED DRAWING: Figure 1 |
