Patent ID: 6762574
Filing Date: 2004-07-13
Classification: G02B

Abstract:
A light deflection device for deflecting a light beam, comprising:a polygon mirror to reflect said light beam; a rotor, having a magnet, and attached to said polygon mirror, to rotate said polygon mirror; a stator on which a plurality of drive coils are fixed so as to generate a rotational force between said magnet and said drive coils; and a plurality of connecting ports to each of which said plurality of drive coils are electronically coupled; wherein said plurality of connecting ports are adapted to be coupled to a plurality of drive circuits in such a manner that each of said plurality of drive circuits is coupled to a respective one of said plurality of connecting ports in parallel with another of said plurality of drive circuits; and wherein each of said plurality of drive circuits is adapted to drive said plurality of drive coils while controlling said rotational force generated by said stator between said magnet and said drive coils in an independent mode.