Dithering assemblies for barcode scanners

A dithering assembly comprising

• a 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 electro-magnetic 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;
• first and second travel stops mounted to the fixed member on opposite sides of the pivoting axis for limiting motion of the mirror assembly in either direction,
• wherein the dithering assembly exerts a drive force sufficiently large that a resulting dithering amplitude in absence of the travel stops would be substantially at least as large as maximum dithering amplitude allowed by the travel stops, whereby the travel stops act to assist in reversal of direction of the mirror assembly.