Patent ID: 8750697
Filing Date: 2014-06-10
Classification: G03B,H02K,H04N

Abstract:
1. An optical image stabilizer, which is mounted in a camera at an image size of a lens to assist an image capture device, comprising: a base having two transverse rails; a pair of transverse reference magnets mounted on the base between the transverse rails; a pair of longitudinal reference magnets mounted on the base; a frame set, on which the image capture device is mounted, having a transverse frame, which has a pair of longitudinal rails, engaged with the transverse rails of the base for reciprocation along the transverse rails and a longitudinal frame, on which the image capture device is mounted, engaged with the longitudinal rails of the transverse frame for reciprocation along the longitudinal rails; a transverse drive coil mounted on the frame set between the transverse rails and beyond the longitudinal rails, and in association with the transverse reference magnets to move the transverse frame along the transverse rails of the base when a power is provided to the transverse drive coil; a longitudinal drive coil mounted on the frame set between the longitudinal rails and between the transverse rails, and in association with the longitudinal reference magnets to move the longitudinal frame along the longitudinal rails of the transverse frame when a power is provided to the longitudinal drive coil; and where a pair of magnetic forces Fa and Fr are created between said longitudinal reference magnets and said longitudinal drive coil and where said magnetic forces are equally distributed to said longitudinal rails such that a driving force Fu is equally distributed to said longitudinal rails.