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: 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: A camera module in which a focal distance is adjusted by an actuator may include a permanent magnet and a coil. A neutral zone spatially dividing first and second polarities of the permanent magnet may be formed at a portion of the permanent magnet facing a sensing sensor sensing magnetic flux.

Abstract: There is provided a camera module including: a lens barrel having one or more lenses positioned along an optical axis; and a housing having the lens barrel therein, wherein the housing includes a first through hole into which the lens barrel is inserted and a second through hole having a diameter larger than that of the first through hole.

Abstract: There is provided a camera module including: a housing having a lens barrel disposed therein; an infrared filter attached to an inner surface of the housing and disposed below the lens barrel; and a board coupled to a lower portion of the housing and having an image sensor mounted thereon, wherein the board has a plurality of terminals formed thereon, the image sensor has a plurality of bonding pads formed therein, and the plurality of bonding pads are electrically connected to the plurality of terminals by bonding wires, respectively, and the plurality of bonding pads have a coating material applied thereto in order to absorb external light incident thereto.

Abstract: A camera module may include a lens barrel supporting a lens, a frame in which the lens barrel is provided, and a housing accommodating the frame. The frame may be pressed toward one surface of the housing to thereby be relatively aligned in the housing so that an optical axis of the lens is positioned perpendicularly with respect to an image formation surface of an image sensor.

Abstract: Disclosed herein is an image photographing device capable of being auto-focused while moving a lens barrel in an optical axis direction. The image photographing device includes: a lens barrel having at least one lens; a housing receiving the lens barrel therein so that the lens barrel moves in an optical axis direction; and an impact reducing unit elastically supporting the lens barrel in the case in which the lens barrel deviates from a set movement range, thereby primarily damping the lens barrel before the lens barrel deviates from the movement range to collide with other components positioned at an outer side of the lens barrel.

Abstract: There is provided a camera module including: a lens barrel having a lens; and a housing having the lens barrel inserted thereinto, wherein an outer surface of the lens barrel facing an inner surface of the housing is provided with a first groove formed inwardly concave, and the inner surface of the housing is provided with a first foreign object collecting portion formed with a step difference and a second foreign object collecting portion formed with a step difference from the first foreign object collecting portion.

Abstract: There is provided a camera module including: a lens barrel having one or more lenses positioned along an optical axis; and a housing having the lens barrel therein, wherein the housing includes a first through hole into which the lens barrel is inserted and a second through hole having a diameter larger than that of the first through hole.

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: 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: Disclosed herein is an image photographing device capable of being auto-focused while moving a lens barrel in an optical axis direction. The image photographing device includes: a lens barrel having at least one lens; a housing receiving the lens barrel therein so that the lens barrel moves in an optical axis direction; and an impact reducing unit elastically supporting the lens barrel in the case in which the lens barrel deviates from a set movement range, thereby primarily damping the lens barrel before the lens barrel deviates from the movement range to collide with other components positioned at an outer side of the lens barrel.