Electromagnetic actuator, its manufacturing method, and optical scanner using the same electromagnetic actuator

摘要

An electromagnetic actuator comprises: a core with a coil wound around; a stator magnetically coupled at both ends of the core; a movable element that can be displaced relative to the stator; and a supporting means for supporting the movable element, wherein the stator and the movable element each have a projection and a depression perpendicular to their respective displacement directions and are placed in such a way that the projection and depression of the stator engage with the projection and depression of the movable element.