Abstract:
A camera module includes a housing having an internal space; a reflective member disposed in the internal space; a lens barrel spaced apart from the reflective member, and configured to be movable relative to the reflective member in one or more of three axial directions intersecting each other; and an image sensor spaced apart from the reflective member, and including an imaging surface intersecting an optical axis direction, wherein the lens barrel and the image sensor are disposed closer to an object than the reflective member is, and are spaced apart from each other in a direction intersecting the optical axis direction.
Abstract:
A camera module is provided. The camera module includes a carrier; a lens holder accommodated in the carrier; an optical image stabilization (OIS) cover coupled to the carrier and disposed on the lens holder; and first buffer members coupled to the OIS cover, wherein a distance between the lens holder and the first buffer member is less than a distance between the lens holder and the OIS cover.
Abstract:
Disclosed herein is a camera module in which a movement of a magnet is controlled by only magnetic force between the magnet and a yoke without a spring for controlling the movement of the magnet which operates up and down. The camera module includes: a lens module; and a main frame supporting the lens module and allowing the lens module to be driven in an optical axis direction, wherein the lens module includes: a lens assembly including a plurality of lenses; and a magnet fixed to one side of the lens module, and the main frame includes: a coil facing the magnet, fixed to one side within the main frame, and generating an electric field as power is applied thereto; and a yoke disposed to face the magnet with the main frame and the coil interposed therebetween and controlling driving of the lens module by attraction with the magnet.
Abstract:
There is provided a lens actuator, including: a lens barrel in which at least one lens is provided on an optical axis; a magnetic part provided on one surface of the lens barrel; and a printed circuit board in which a coil pattern part generating electromagnetic force is provided, the printed circuit board having one surface facing the magnetic part, wherein magnetic material is provided on the other surface of the printed circuit board.
Abstract:
Disclosed herein is a camera module. The camera module includes: a lens barrel with a built-in lens collecting external images; a housing that has a receiving space in which the lens barrel is received; a driving part that is configured to include a magnet and a coil and provides a first driving force that drives the lens barrel upward and a second driving force that drives the lens barrel downward by an electromagnetic force that is generated from the magnet and the coil; a guide ball that is provided between the lens barrel and the housing and guides the motion of the lens barrel; and a position detection part that senses the position of the lens barrel, wherein the driving part drives the lens barrel upward and downward so that a preload part that provides preload returning the lens barrel to its initial position is not required.
Abstract:
A camera module includes a lens barrel, a housing accommodating the lens barrel therein, a ball bearing contacting rolling surfaces, which are respectively provided on the lens barrel and the housing, and a semi-wet lubricant applied to a surface of the ball bearing.
Abstract:
A reflective module includes a reflective member configured to change a path of light, a holder on which a reflective member is mounted, a housing accommodating the holder, a first driver including one first magnet mounted on the holder, a first coil opposing the one first magnet, and a first position sensor, and a second driver including one second magnet mounted on the holder, a second coil opposing the one second magnet, and a second position sensor, wherein one sidewall of the holder and the other sidewall of the holder have different shapes.
Abstract:
An actuator driving device includes: a linearizer configured to linearize a first signal, indicative of a displacement of a lens module, to generate a second signal; a position controller configured to generate a position control signal in response to the second signal and a control input signal indicative of a target location of the lens module; and a driver configured to drive an actuator in response to the position control signal.
Abstract:
An actuator and camera module having a carrier accommodating a lens portion; a magnet disposed on an outer circumferential surface of the carrier; a housing comprising an opening formed in an upper surface of the housing wherein lateral surfaces of the carrier and the magnet are disposed within the housing; a coil portion disposed on a lateral surface of the housing configured to face the magnet; a flexible printed circuit board comprising a terminal portion, formed on one surface of the flexible printed circuit board, configured to supply power to the coil portion, wherein the flexible printed circuit board is coupled to the housing; and a reinforcing portion protruding from a lower surface of the housing to support a rear surface of the terminal portion.
Abstract:
An actuator including a printed circuit board comprising an external connection pad formed on one surface of the printed circuit board; a magnet disposed to face another surface of the printed circuit board; a coil portion disposed on the one surface of the printed circuit board; and a driver integrated circuit (IC), installed on the one surface of the printed circuit board, configured to control a current applied to the coil portion.