Patent ID: 7505677
Filing Date: 2009-03-17
Classification: G02B,G03B,H04N

Abstract:
1. An optical image stabilizer for a camera lens assembly, the optical image stabilizer comprising: a main frame; a driving frame comprising a first frame and a second frame arranged within the first frame, each of said first frame and said second frame of said driving frame positioned for moving in at least one direction on the main frame with respect to the main frame; a camera device mounted on the driving frame; a pair of driving permanent magnets mounted on one of the main frame and the driving frame; a pair of coils mounted on the other of the main frame and the driving frame and facing the pair of driving permanent magnets; and at least one slidable bearing interposed between an inner sidewall of the main frame and an outer sidewall of the driving frame to facilitate movement of the driving frame, with respect to the main frame, wherein the driving frame moves by non-contact driving through interaction between an electromagnetic force generated by application of a current to the coils and a magnetic force of the driving permanent magnets so that the entire camera device moves along with the movement of the driving frame.