Blade drive device and optical apparatus

摘要

To provide a blade drive device capable of suppressing operation failures due to the leakage flux. The blade drive device 1 attached to a camera module including a lens and a lens drive device 60 having plural permanent magnets 61 arranged with gaps around an optical axis P of the lens in an annular manner so as to overlap the camera module in an axial direction of the optical axis P, which includes a lower plate 2 having an opening 4 formed around the optical axis P, blades 20 regulating the opening 4 and respective actuators 10A, 10B arranged in the lower plate 2 and driving the blades 20. Each of respective actuators 10A, 10B is arranged in a position corresponding to a gap between a pair of adjacent permanent magnets 61 seen from the axial direction.

主权项

1. A blade drive device attached to a camera module including a lens and a lens drive device having plural magnets arranged with gaps around an optical axis of the lens in an annular manner so as to overlap the camera module in an axial direction of the optical axis, comprising:
a lower plate having an opening formed around the optical axis; blades regulating the opening; and actuators arranged in the lower plate and driving the blades, wherein the actuators are arranged in positions corresponding to the gaps seen from the axial direction.