Abstract: A lens driving assembly includes a cam barrel having an opening in an outer circumferential surface thereof and that rotates around an optical axis, a front barrel accommodated in the cam barrel and that moves in an optical axis direction corresponding to rotation of the cam barrel, and a first lens group assembly that pivots between a home position that is deviated from the optical axis and an alignment position that is aligned with the optical axis, in which the first lens group assembly moves through the opening between the home position and the alignment position according to the rotation of the cam barrel and an elastic force.

Abstract: An auto focusing (AF) module includes a fixed base, an AF barrel configured to support a focus lens, an AF base supported by the fixed base and configured to support the AF barrel such that the AF barrel that moves along an optical axis. A stepper motor is fixed to the AF base and provides a driving force to the AF barrel; a bonding member is arranged between the fixed base and the AF base, the bonding member being configured to bond the fixed base and the AF base to each other. The AF module may fix the AF base in an optimum location with respect to the fixed base, so that the assembling error of a first guide shaft assembled in the AF base may be compensated. The AF module may be fixed to the optimum location with respect to another component, such as the lens frame.

Abstract: A lens barrel assembly includes: a lens barrel that is rotatable about an optical axis and is movable in a direction along the optical axis; a moving plate that is combined with the lens barrel so that the moving plate is rotated together with the lens barrel and is movable with respect to the lens barrel in the direction along the optical axis; a power transmission unit that is installed on the moving plate and transmits an outside rotation force to the lens barrel via the moving plate; and a stopper that is disposed on a path on which the moving plate moves in the direction along the optical axis and that limits a movement of the moving plate in the direction along the optical axis in a partial section of the path on which the lens barrel is moved.

Abstract: A lens driving assembly includes a cam barrel having an opening in an outer circumferential surface thereof and that rotates around an optical axis, a front barrel accommodated in the cam barrel and that moves in an optical axis direction corresponding to rotation of the cam barrel, and a first lens group assembly that pivots between a home position that is deviated from the optical axis and an alignment position that is aligned with the optical axis, in which the first lens group assembly moves through the opening between the home position and the alignment position according to the rotation of the cam barrel and an elastic force.

Abstract: A barrel assembly includes a barrel, at least one lens group disposed in the barrel to move in an optical axis direction, an aperture disposed in the barrel that adjusts an amount of light passing through the at least one lens group; and a light adjustment unit disposed in the barrel to move in the optical axis direction and that blocks light passing through a peripheral area of the at least one lens group when the at least one lens group is in at least one part of a travel section along which the at least one lens group moves in the barrel.

Abstract: A lens barrel assembly, which has improved shock resistance and quickly resumes normal operation when external shock is applied, includes a first barrel including an elastic moving pin which protrudes toward a second barrel and elastically deforms. The second barrel includes a first guide groove into which the elastic moving pin is inserted and which extends obliquely in a circumferential direction to guide a movement of the first barrel, and at least one second guide groove including an end separated from the first guide groove and another end connected to the first guide groove to guide the elastic moving pin so that the elastic moving pin returns into the first guide groove when the elastic moving pin is separated from the first guide groove. The second barrel rotates in an optical axis direction and supports the first barrel so that the first barrel moves relative to the optical axis direction.

Abstract: A zoom lens barrel assembly includes: a first zoom ring that supports a first lens group; a first guide ring, of which the first zoom ring is disposed on an inner side, is cam-connected to the first zoom ring to cause the first lens group to move linearly along an optical axis direction by rotation; a second zoom ring that supports a second lens group and is cam-connected to the first guide ring to move linearly along the optical axis direction; a second guide ring cam-connected to the first guide ring and configured to move linearly along the optical axis direction to rotate the first guide ring; a second cylinder configured to move linearly along the optical axis direction together with the second zoom ring while being rotated; and an external cylinder including a third lens group and is cam-connected to the second cylinder to cause the second cylinder to rotate.

Abstract: A lens barrel assembly includes: a lens group; a lens barrel that support the lens group and includes, on an outer circumferential surface thereof, a first movement pin projected outwardly and a second guide groove that is extended along a circumferential direction; and an outer barrel disposed outside the lens barrel and includes, on an inner circumferential surface thereof, a first guide groove extended along the circumferential direction to be coupled with the first movement pin, and a second movement pin that is projected inwardly to be coupled with the second guide groove, where the lens barrel is moved in an optical axis direction as the outer barrel rotates, and where a movement section of the lens barrel comprises a first movement section, a second movement section, and an intersection movement section that connects the first movement section with the second movement section.

Abstract: A lens barrel assembly, which has improved shock resistance and quickly resumes normal operation when external shock is applied, includes a first barrel including an elastic moving pin which protrudes toward a second barrel and elastically deforms. The second barrel includes a first guide groove into which the elastic moving pin is inserted and which extends obliquely in a circumferential direction to guide a movement of the first barrel, and at least one second guide groove including an end separated from the first guide groove and another end connected to the first guide groove to guide the elastic moving pin so that the elastic moving pin returns into the first guide groove when the elastic moving pin is separated from the first guide groove. The second barrel rotates in an optical axis direction and supports the first barrel so that the first barrel moves relative to the optical axis direction.

Abstract: A zoom lens barrel assembly includes: a first barrel including an inlet through which light is incident on the first barrel; a second barrel that surrounds at least a part of an external surface of the first barrel and supports the first barrel to be movable to protrude forward from a front portion of a main body; a plurality of blades disposed to be moved between an open position in which the plurality of blades are retreated to an outside of the inlet and a closed position in which the inlet is blocked; and an accommodation unit that extends from an end of the first barrel to an outside of the first barrel so as to accommodate the blades that have been moved to the open position.

Abstract: A zoom lens barrel assembly includes: a first zoom ring that supports a first lens group; a first guide ring, of which the first zoom ring is disposed on an inner side, is cam-connected to the first zoom ring to cause the first lens group to move linearly along an optical axis direction by rotation; a second zoom ring that supports a second lens group and is cam-connected to the first guide ring to move linearly along the optical axis direction; a second guide ring cam-connected to the first guide ring and configured to move linearly along the optical axis direction to rotate the first guide ring; a second cylinder configured to move linearly along the optical axis direction together with the second zoom ring while being rotated; and an external cylinder including a third lens group and is cam-connected to the second cylinder to cause the second cylinder to rotate.

Abstract: A lens barrel assembly includes: a lens group; a lens barrel that support the lens group and includes, on an outer circumferential surface thereof, a first movement pin projected outwardly and a second guide groove that is extended along a circumferential direction; and an outer barrel disposed outside the lens barrel and includes, on an inner circumferential surface thereof, a first guide groove extended along the circumferential direction to be coupled with the first movement pin, and a second movement pin that is projected inwardly to be coupled with the second guide groove, where the lens barrel is moved in an optical axis direction as the outer barrel rotates, and where a movement section of the lens barrel comprises a first movement section, a second movement section, and an intersection movement section that connects the first movement section with the second movement section.

Abstract: A lens barrel assembly includes: a lens barrel that is rotatable about an optical axis and is movable in a direction along the optical axis; a moving plate that is combined with the lens barrel so that the moving plate is rotated together with the lens barrel and is movable with respect to the lens barrel in the direction along the optical axis; a power transmission unit that is installed on the moving plate and transmits an outside rotation force to the lens barrel via the moving plate; and a stopper that is disposed on a path on which the moving plate moves in the direction along the optical axis and that limits a movement of the moving plate in the direction along the optical axis in a partial section of the path on which the lens barrel is moved.

Abstract: A barrel assembly includes a barrel, at least one lens group disposed in the barrel to move in an optical axis direction, an aperture disposed in the barrel that adjusts an amount of light passing through the at least one lens group; and a light adjustment unit disposed in the barrel to move in the optical axis direction and that blocks light passing through a peripheral area of the at least one lens group when the at least one lens group is in at least one part of a travel section along which the at least one lens group moves in the barrel.

Abstract: A zoom lens barrel assembly includes: a first barrel including an inlet through which light is incident on the first barrel; a second barrel that surrounds at least a part of an external surface of the first barrel and supports the first barrel to be movable to protrude forward from a front portion of a main body; a plurality of blades disposed to be moved between an open position in which the plurality of blades are retreated to an outside of the inlet and a closed position in which the inlet is blocked; and an accommodation unit that extends from an end of the first barrel to an outside of the first barrel so as to accommodate the blades that have been moved to the open position.

Abstract: An apparatus for adjusting a location of an optical element includes: a first barrel having a hollow cylindrical shape; a second barrel having a hollow cylindrical shape to support the optical element and rotatably coupled to the first barrel; a distance maintaining unit installed between the first barrel and the second barrel in a first region of the first barrel and maintaining a distance between the first barrel and the second barrel in the first region when the second barrel rotates relative to the first barrel; and a guiding unit installed between the first barrel and the second barrel in a second region of the first barrel and guiding a movement of the second barrel to change a relative position of the second barrel with respect to the first barrel in the second region when the second barrel rotates relative to the first barrel.

Abstract: An apparatus for adjusting a location of an optical element includes: a first barrel having a hollow cylindrical shape; a second barrel having a hollow cylindrical shape to support the optical element and rotatably coupled to the first barrel; a distance maintaining unit installed between the first barrel and the second barrel in a first region of the first barrel and maintaining a distance between the first barrel and the second barrel in the first region when the second barrel rotates relative to the first barrel; and a guiding unit installed between the first barrel and the second barrel in a second region of the first barrel and guiding a movement of the second barrel to change a relative position of the second barrel with respect to the first barrel in the second region when the second barrel rotates relative to the first barrel.

Abstract: A dual tone multi-frequency detector includes a pulse code modulation expanding unit for converting pulse code modulation data into linear data. A correlating unit constructed from a plurality of correlators correlates the linear data with a plurality of predetermined reference signals to generate a plurality of power values of a frequency band corresponding to dual tone multi-frequency signals. A total power detecting unit detects a total power value of the linear data. A low frequency maximum power detecting unit detects a maximum low frequency power value from the power values of a low frequency band generated by the correlating unit. A high frequency maximum power detecting unit detects a maximum high frequency power value from the power values of a high frequency band generated by the correlating unit.