Patent ID: 6152372
Filing Date: 2000-11-28
Classification: G06K

Abstract:
A dithering assembly comprisinga fixed member;a mirror assembly comprising a mirror bracket and a dithering mirror mounted on the mirror bracket, the mirror bracket being pivotally mounted to the fixed member to allow the mirror bracket to pivot about a center of rotation axis in at least two opposite directions;a electromagnetic drive assembly comprising at least a first drive magnet and at least a first electro-magnet, one of the first drive magnet and the first electro-magnet being fixedly mounted on the fixed member, wherein the first drive magnet is positioned proximate to the first electro-magnet, wherein the first drive magnet is driven by a magnetic field generated by the first electro-magnet as a flow of current is applied to the first electro-magnet;position sensing mechanism includinga feedback magnet mounted on a side of the mirror bracket opposite to the first drive magnet,a Hall sensor mounted in a fixed position adjacent the feedback magnet for sensing position of the mirror assembly.