Drive motor for rotating multi-faceted mirror
AssigneeSamsung Electronics Co., Ltd.
InventorChang-woo Lee
Life of this patent
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Abstract
A drive motor for rotating a multi-faceted mirror to change the path of a laser beam in a laser printer or a laser scanner. The drive motor for rotating the multi-faceted mirror has a stator, a rotor, and a bearing disposed between the stator and the rotor for supporting the rotation of the rotor, and the bearing is a hemispherical fluid bearing. Therefore, shaking and noise can be efficiently reduced when a laser printer or a laser scanner prints or scans at a high speed.
Claims9
A drive motor for rotating a multi-faceted mirror, comprising a stator, a rotor, and a bearing disposed between said stator and said rotor for supporting the rotation of said rotor,
- wherein said bearing is a hemispherical fluid bearing, said hemispherical fluid bearing comprising an upper inner ring and a lower inner ring which are hemispherical so as to define a lubricating surface and fitted on a shaft fixed to said rotor to face each other, and an outer ring held in said stator and defining a lubricating surface for supporting the rotation of said upper inner ring and said lower inner ring.
Dependencies are inferred from the claim text.