Image stabilizing apparatus

摘要

An image stabilizing apparatus includes: a base; a first frame movably coupled to the base in a first direction; a first vibration axis that movably support the first frame; a first vibration unit that vibrates the first vibration axis; a first sensing unit that senses a position variation of the first frame; a second frame movably coupled to the first frame in a second direction that crosses the first direction; a lens coupled to the second frame; a second vibration axis that is disposed on the first frame to movably support the second frame; a second vibration unit that vibrates the second vibration axis; a second sensing unit that senses a position variation of the second frame; and a first elastic plate including a connecting portion that is connected to the first frame and a pressing portion that is bent from the connecting portion and presses the first vibration axis.

主权项

1. An image stabilizing apparatus comprising:
a base; a first frame that is movably coupled to the base in a first direction; a first vibration axis that extends along the first direction to movably support the first frame in the first direction; a first vibration unit that vibrates the first vibration axis; a second frame that is movably coupled to the first frame in a second direction that crosses the first direction; a lens coupled to the second frame; a second vibration axis that is disposed on the first frame and extended along the second direction to movably support the second frame along the second direction; a second vibration unit that vibrates the second vibration axis; a sensing unit that senses a position variation of a sensed frame that is either the first frame or the second frame; a first elastic plate comprising a first connecting portion that is connected to the first frame, and a first pressing portion that is bent from the first connecting portion and contacts and presses the first vibration axis; and a first contact plate that contacts the first connecting portion of the first elastic plate; a magnet disposed on one of the sensed frame and the base; and a magnetism sensing unit that is disposed on the other of the sensed frame and the base to correspond to the magnet and that generates a sensing signal by sensing a change in a magnetic force according to a position of the magnet,wherein:
the sensing unit senses position variation of the sensed frame with respect to the base in a sensed frame moving direction; and the magnetism sensing unit comprises two sensors spaced apart.