Abstract: A camera module is disclosed. In accordance with an embodiment of the present invention, the camera module includes a lens barrel, which supports a lens and in which the lens allows a ray of light to be incident at an imaging part, a driver, which moves the lens barrel along an optical axis, a body, which houses the lens barrel, and a buffering part, which is interposed between the lens barrel and the body when the lens barrel collides with the body.

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 according to an aspect of the invention may include: a housing; a fixed unit fixed to the inside of the housing; a lens barrel provided in the housing and having at least one lens; and a moving unit moved and supported by the fixed unit by a predetermined magnetic force, and moving the lens barrel along an optical axis, such that driving accuracy and reliability can be increased when performing auto focus or zoom.

Abstract: A camera module is disclosed. In accordance with an embodiment of the present invention, the camera module includes a lens barrel, which supports a lens and in which the lens allows a ray of light to be incident at an imaging part, a driver, which moves the lens barrel along an optical axis, a body, which houses the lens barrel, and a buffering part, which is interposed between the lens barrel and the body when the lens barrel collides with the body.

Abstract: An actuator used for a camera module and controlling a lens assembly to move along an optical axis, includes a magnet disposed on a side of the lens assembly, a coil part disposed within a magnetic field of the magnet and controlling an up-and-down movement of the lens assembly when an electric power is applied, and a yoke part disposed to horizontally move the magnet disposed on the side of the lens assembly. The lens assembly is provided with a friction-generating member generating a frictional force to the lens assembly in an opposite direction to a direction in which the lens assembly moves to the yoke part.

Abstract: An actuator used for a camera module and controlling a lens assembly to move along an optical axis, includes a magnet disposed on a side of the lens assembly, a coil part disposed within a magnetic field of the magnet and controlling an up-and-down movement of the lens assembly when an electric power is applied, and a yoke part disposed to horizontally move the magnet disposed on the side of the lens assembly. The lens assembly is provided with a friction-generating member generating a frictional force to the lens assembly in an opposite direction to a direction in which the lens assembly moves to the yoke part.

Abstract: A camera module according to an aspect of the invention may include: a housing; a fixed unit fixed to the inside of the housing; a lens barrel provided in the housing and having at least one lens; and a moving unit moved and supported by the fixed unit by a predetermined magnetic force, and moving the lens barrel along an optical axis, such that driving accuracy and reliability can be increased when performing auto focus or zoom.

Abstract: The invention provides a lens driving device capable of performing zooming and auto-focusing using a single actuator, with a simple and miniaturized structure and less power consumption. The lens driving device includes a first lens disposed movable during zooming and automatic focusing, a second lens disposed movable during zooming independently from the first lens. The lens driving device also includes a lens movement guide member, having a first guide part, and a second guide part, rotated to move the first and second lenses. An actuator is provided to move the first and second lenses, and both the first and second lenses are moved during zooming while only the first lens is finely moved during automatic focusing.