Patent ID: 9310584
Filing Date: 2016-04-12
CPC Classification: G02B

Claim Text:
1. A lens driving apparatus comprising: (a) a base having at least one stationary guide member; (b) a moveable guide member provided on and moveable with a lens holder; (c) a coil attached to the lens holder; (d) a magnet holder holding a plurality of magnets with magnetization direction lying on a plane perpendicular to an optical axis defined by the lens holder; and (e) a position encoder attached to the lens holder; (f) wherein the said magnet holder is fixed on the said base, and the said moveable guide member on the said lens holder is engaged with the stationary guide member on the said base, and slidable therealong in a direction defined by the guide members; and (g) wherein the said position encoder is configured to send out a signal with respect to the change of the position of the lens holder.