The imaging apparatus comprises a retractable structure with active and inactive positions. An outermost lens group and a lens group actuator are movable along an optical axis. In the inactive position the lens group and the lens group actuator reside close to an image sensor. The lens group actuator is positioned to the same level as the image sensor. In the active position the outermost lens group and the lens group actuator are further from the image sensor along the optical axis. The retractable structure may protrude from the device, covering the imaging apparatus. In one example the structure is reversed, the image sensor protrudes from the device while the outermost lens group is fixed to the device body.

The imaging apparatus comprises a retractable structure with active and inactive positions. An outermost lens group and a lens group actuator are movable along an optical axis. In the inactive position the lens group and the lens group actuator reside close to an image sensor. The lens group actuator is positioned to the same level as the image sensor. In the active position the outermost lens group and the lens group actuator are further from the image sensor along the optical axis. The retractable structure may protrude from the device, covering the imaging apparatus. In one example the structure is reversed, the image sensor protrudes from the device while the outermost lens group is fixed to the device body.

An image blur correction apparatus includes a focus adjustment unit for moving a lens body in the direction of its optical axis; an image blur correction unit; and a housing having a housing front side wall on the front side of the direction of the optical axis and disposed outside said focus adjustment unit and the image blur correction unit, the focus adjustment unit has a focus adjustment unit front side wall on the front side of the direction of the optical axis, the focus adjustment unit front side wall including an exposed portion provided around the insertion hole and a hollow portion recessed toward the rear side of the direction of the optical axis with respect to said exposed portion; and the hollow portion and the rear side of the housing front side wall in the direction of the optical axis are provided to face opposite each other.

An image blur correction apparatus includes a focus adjustment unit for moving a lens body in the direction of its optical axis; an image blur correction unit; and a housing having a housing front side wall on the front side of the direction of the optical axis and disposed outside said focus adjustment unit and the image blur correction unit, the focus adjustment unit has a focus adjustment unit front side wall on the front side of the direction of the optical axis, the focus adjustment unit front side wall including an exposed portion provided around the insertion hole and a hollow portion recessed toward the rear side of the direction of the optical axis with respect to said exposed portion; and the hollow portion and the rear side of the housing front side wall in the direction of the optical axis are provided to face opposite each other.

A coil member according to an embodiment comprises: a substrate having a top surface and a bottom surface opposite the top surface; a first coil electrode disposed on the top surface of the substrate and including a first pattern electrode; and a second coil electrode disposed on the bottom surface of the substrate and including a second pattern electrode. The first coil electrode includes: a first outermost pattern electrode; a first innermost pattern electrode; and a central pattern electrode between the first outermost pattern electrode and the first innermost pattern electrode, wherein the line width of at least one of the first outermost pattern electrode or the first innermost pattern electrode is greater than the line width of the central pattern electrode.

An optical unit having a shake correction function, includes a movable body including an optical module, a fixed body supporting the movable body in a swingable manner, a swing drive mechanism swinging the movable body relative to the fixed body and including a magnet and a coil, one of the magnet and the coil being fixed to the movable body, the other one of the magnet and the coil being fixed to the fixed body, a magnetic member returning the movable body to an original position, a magnetic detection sensor detecting a magnetic field of the magnet, and a wiring member being connected with the coil. The wiring member includes a mounting face on which the magnetic detection sensor, the magnetic member, and the coil are fixed. The centers of the magnetic detection sensor, the magnetic member, and the coil are coaxially fixed to the mounting face.

An optical unit having a shake correction function, includes a movable body including an optical module, a fixed body supporting the movable body in a swingable manner, a swing drive mechanism swinging the movable body relative to the fixed body and including a magnet and a coil, one of the magnet and the coil being fixed to the movable body, the other one of the magnet and the coil being fixed to the fixed body, a magnetic member returning the movable body to an original position, a magnetic detection sensor detecting a magnetic field of the magnet, and a wiring member being connected with the coil. The wiring member includes a mounting face on which the magnetic detection sensor, the magnetic member, and the coil are fixed. The centers of the magnetic detection sensor, the magnetic member, and the coil are coaxially fixed to the mounting face.

An optical unit with a shake correction function includes a movable body having a lens, a turning support mechanism structured to turnably support the movable body around an optical axis of the lens, a gimbal mechanism structured to turnably support the turning support mechanism around a first axis and around a second axis intersecting the optical axis, a fixed body which supports the movable body through the gimbal mechanism and the turning support mechanism, a shake correction magnetic drive mechanism structured to turn the movable body around the first axis and around the second axis, and a rolling correction magnetic drive mechanism structured to turn the movable body around the optical axis. The shake correction magnetic drive mechanism and the rolling correction magnetic drive mechanism are arranged in a circumferential direction around the optical axis.

An optical unit with a shake correction function includes a movable body having a lens, a turning support mechanism structured to turnably support the movable body around an optical axis of the lens, a gimbal mechanism structured to turnably support the turning support mechanism around a first axis and around a second axis intersecting the optical axis, a fixed body which supports the movable body through the gimbal mechanism and the turning support mechanism, a shake correction magnetic drive mechanism structured to turn the movable body around the first axis and around the second axis, and a rolling correction magnetic drive mechanism structured to turn the movable body around the optical axis. The shake correction magnetic drive mechanism and the rolling correction magnetic drive mechanism are arranged in a circumferential direction around the optical axis.

Disclosed in an embodiment is a camera module comprising: a housing; a lens module coupled to the housing; a holder disposed in the housing; an elastic member connecting the housing and the holder; a magnet part and an optical member that are coupled to the holder; and a coil part facing the magnet part, wherein the holder includes a first protrusion that extends in an optical axis direction so as to be coupled to the elastic member, and the elastic member includes a first coupling portion coupled to one surface of the first protrusion; the first protrusion includes a guide protrusion which protrudes from the one surface of the first protrusion in the optical axis direction, wherein the guide protrusion is disposed outside the elastic member and has a shape corresponding to at least a portion of the outer circumference of the first coupling portion.