Abstract: Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core having a shaft fixedly coupled to the center thereof and a plurality of rotor salient poles formed to be protruded from an outer peripheral surface of the rotor core; a stator part including a stator yoke having the rotor part rotatably received in an inner portion thereof and a plurality of stator salient poles formed to be protruded from the stator yoke in a direction toward the rotor salient poles so as to correspond to the rotor salient poles and having coils wound therearound; and a printed circuit board fixedly coupled to an upper portion of the stator part and including a plurality of ground parts having the coils penetrating therethrough, the coil being wound around the plurality of stator salient poles.

Abstract: Disclosed herein is a camera module including: a lens barrel mounted with a camera lens; a housing including an exposing hole and guide portions formed on the top thereof, the exposing hole being opposite to the camera lens; a printed circuit board fixed to the housing; and an LC lens module including an LC lens and guided to the guide portions of the housing to thereby be coupled to the housing so that the LC lens is positioned on the same axis as the center of the lens.

Abstract: A camera module is disclosed. The camera module in accordance with an embodiment of the present invention includes a lens, an actuator that moves the lens in a direction of optical axis, and an image sensor that converts an image incident through the lens to an electrical signal and has extended depth of field.

Abstract: An aspheric plastic lens comprises a spherical surface portion having upper and lower portions at the center thereof, the upper and lower portions having curved surfaces with a different curvature, respectively; a rib formed in a circular plate shape so as to extend from the peripheral edge of the spherical surface portion to the outside, the rib having burrs formed to project on the edges of the upper and lower surfaces thereof; and a pair of two-stage step portions formed on the upper and lower surfaces of the rib, the two-stage step portions being formed symmetrically with each other.

Abstract: An aspheric plastic lens comprises a spherical surface portion having upper and lower portions at the center thereof, the upper and lower portions having curved surfaces with a different curvature, respectively; a rib formed in a circular plate shape so as to extend from the peripheral edge of the spherical surface portion to the outside, the rib having burrs formed to project on the edges of the upper and lower surfaces thereof; and a pair of two-stage step portions formed on the upper and lower surfaces of the rib, the two-stage step portions being formed symmetrically with each other.