Patent ID: 6332576
Filing Date: 2001-12-25
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;at least a first drive magnet mounted on the mirror bracket on one side of the center of rotation axis;a first electro-magnet mounted in a fixed position proximate the first drive magnet, wherein the first drive magnet is respectively attracted or repelled to the respective first electro-magnet as a flow of current applied to the first electro-magnet is alternated at a desired frequency;first travel stop mounted to the fixed member for contacting the mirror assembly during normal pivoting operation of the mirror bracket thereby limiting motion of the mirror assembly in one direction and applying a return force to the mirror assembly in an opposite direction.