Abstract: An auto-focusing camera includes a pair of drive units (100, 200) arranged back-to-back. Each one of the drive units includes a lens unit (11), a permanent magnet (12) mounted around the lens unit, upper and lower coil seats (15a, 15b) arranged at upper and lower sides of the permanent magnet, and upper and lower coils (14a, 14b) wound around the upper and lower coil seats, respectively. The upper and lower coils are used for inducing the upper and lower yokes (10c, 10d) to generate magnetic fields when electric currents are applied to the first and second coils. The magnetic fields generated by the upper and lower yokes interact with the magnetic field of the permanent magnet to drive the lens unit into movement between its focal points. The permanent magnet is fixed to and telescopes inwardly or outwardly with the lens unit.

Abstract: A two-step auto focus camera with two focal points includes a lens unit (20) and a permanent magnet (30) being fixedly mounted around the lens unit to move with the lens unit. Upper and lower coil seats (60a, 60b) are mounted around the lens unit and are arranged at upper and lower sides of the magnet, respectively. Upper and lower coils (50a, 50b) wind around the upper and lower coil seats, respectively. A circuit board (80) supplies a current to each of the coils, wherein the current to each coil has a plurality of square waves in one focusing time for the lens unit to move from one focal point to the other focal point.

Abstract: An auto focusing camera includes a lens unit (2) including a barrel (20) and a lens (22) received in the barrel, a permanent magnet (3) being fixedly mounted around the barrel of the lens unit and moving with the lens unit when the lens unit undergoes telescopic movement during operation, and a coil seat (6a, 6b) with a coil (5a, 5b) wound thereon arranged at a side of the permanent magnet. An interlocking device (642, 202) is formed on the barrel and the coil seat for guiding the telescopic movement of the lens unit.

Abstract: An auto-focusing lens of a camera includes a lens unit (11), a permanent magnet (12) being fixedly mounted around the lens unit to move with the lens unit, a first coil seat (15a) arranged on a first side of the magnet with a first winding (14a) wound thereon, and a second coil seat (15b) arranged on a second side opposite to the first side of the magnet with a second winding (14b) wound thereon. The first and second windings and the first and second coil seats are provided for establishing magnetic fields when electric currents are applied to the first and second windings. The magnetic fields interact with the magnetic field of the permanent magnet to drive the lens unit into movement between its front focus point (A) and its rear focus point (B).

Abstract: A two-step auto-focusing camera includes a lens unit (12); a permanent magnet (124) being fixedly mounted around the lens unit to move with the lens unit; first and second coil seats (14, 15) with first and second coils (145, 155) wound thereon being mounted around the lens unit at two opposite sides of the magnet. When electric currents are supplied to the first and second coils, one of the coil seats generates an attraction force to the lens unit, and the other coil seat generates a repulsion force to the lens unit. A flange (143, 153) extends outwardly from an outer periphery of each coil seat at an end near the magnet to limit the magnet to move between the flanges of the first and second coil seats during movement of the lens unit.

Abstract: An auto focusing camera includes a square-shaped circuit board (11), a motor (100) arranged on the circuit board, and a lens unit (20) received in the motor. The circuit board forms contacts (114) on corners thereof. The motor includes a cuboid-shaped housing (18), a stator (12) mounted in the housing, and a rotor (14) being rotatably disposed in the stator. The stator includes a square-shaped base (123) forming connecting pins (139) in corners thereof, and a stator core (121) with coils (122) wound thereon. The coils have ends being electrically connected with the connecting pins of the base. The connecting pins are electrically connected with the contacts in the housing to electrically connect the ends of the coils to the circuit board.

Abstract: An auto focusing camera includes a stator (120) and a rotor (130) rotatably disposed in the stator. The stator includes a stator core (122) and at least a coil (125) wound around the stator core. The rotor has an inner thread (136). A lens unit (20) is linearly movably received in the rotor, comprising a lens barrel (14) and a lens (15) mounted in the lens barrel. The lens barrel has an outer thread (146) threadedly engaging with the inner thread of the rotor, and an internal thread (148) formed on an inner surface thereof. The lens has an external thread (158) threadedly engaging with the internal thread of the barrel. When the rotor rotates, the lens unit has a telescopic movement relative to the rotor. By rotating the lens, a relative position between the lens and the lens barrel is adjustable.

Abstract: A motor structure with built-in lens includes a lens mount (10) defining an inner space therein, a hollow stator (32) fixedly received in the inner space, a rotor (34) rotatably received in the stator with an internal thread (344) defined in an inner surface thereof, and a lens unit (50) received in the rotor. The lens unit defines an external thread (544) on an outer surface thereof threadedly engaging with the internal thread of the rotor. A protrusion (328) is formed on an inner surface of the stator for supporting an outer surface of the rotor thus obtaining stable rotation of the rotor.

Abstract: A two-step auto focus camera with two focal points includes a lens unit (20) and a permanent magnet (30) being fixedly mounted around the lens unit to move with the lens unit. Upper and lower coil seats (60a, 60b) are mounted around the lens unit and are arranged at upper and lower sides of the magnet, respectively. Upper and lower coils (50a, 50b) wind around the upper and lower coil seats, respectively. A circuit board (80) supplies a current to each of the coils, wherein the current to each coil has a plurality of square waves in one focusing time for the lens unit to move from one focal point to the other focal point.

Abstract: An auto-focusing camera includes a pair of drive units (100, 200) arranged back-to-back. Each one of the drive units includes a lens unit (11), a permanent magnet (12) mounted around the lens unit, upper and lower coil seats (15a, 15b) arranged at upper and lower sides of the permanent magnet, and upper and lower coils (14a, 14b) wound around the upper and lower coil seats, respectively. The upper and lower coils are used for inducing the upper and lower yokes (10c, 10d) to generate magnetic fields when electric currents are applied to the first and second coils. The magnetic fields generated by the upper and lower yokes interact with the magnetic field of the permanent magnet to drive the lens unit into movement between its focal points. The permanent magnet is fixed to and telescopes inwardly or outwardly with the lens unit.

Abstract: A motor structure with built-in lens includes a lens mount (10) defining an inner space therein, a hollow stator (32) fixedly received in the inner space, a rotor (34) rotatably received in the stator with an internal thread (344) defined in an inner surface thereof, and a lens unit (50) received in the rotor. The lens unit defines an external thread (544) on an outer surface thereof threadedly engaging with the internal thread of the rotor. A protrusion (328) is formed on an inner surface of the stator for supporting an outer surface of the rotor thus obtaining stable rotation of the rotor.

Abstract: An auto focusing camera includes a square-shaped circuit board (11), a motor (100) arranged on the circuit board, and a lens unit (20) received in the motor. The circuit board forms contacts (114) on corners thereof. The motor includes a cuboid-shaped housing (18), a stator (12) mounted in the housing, and a rotor (14) being rotatably disposed in the stator. The stator includes a square-shaped base (123) forming connecting pins (139) in corners thereof, and a stator core (121) with coils (122) wound thereon. The coils have ends being electrically connected with the connecting pins of the base. The connecting pins are electrically connected with the contacts in the housing to electrically connect the ends of the coils to the circuit board.

Abstract: An auto focusing camera includes a stator (120) and a rotor (130) rotatably disposed in the stator. The stator includes a stator core (122) and at least a coil (125) wound around the stator core. The rotor has an inner thread (136). A lens unit (20) is linearly movably received in the rotor, comprising a lens barrel (14) and a lens (15) mounted in the lens barrel. The lens barrel has an outer thread (146) threadedly engaging with the inner thread of the rotor, and an internal thread (148) formed on an inner surface thereof. The lens has an external thread (158) threadedly engaging with the internal thread of the barrel. When the rotor rotates, the lens unit has a telescopic movement relative to the rotor. By rotating the lens, a relative position between the lens and the lens barrel is adjustable.

Abstract: An auto focusing camera includes a lens unit (2) including a barrel (20) and a lens (22) received in the barrel, a permanent magnet (3) being fixedly mounted around the barrel of the lens unit and moving with the lens unit when the lens unit undergoes telescopic movement during operation, and a coil seat (6a, 6b) with a coil (5a, 5b) wound thereon arranged at a side of the permanent magnet. An interlocking device (642, 202) is formed on the barrel and the coil seat for guiding the telescopic movement of the lens unit.

Abstract: A two-step auto-focusing camera includes a lens unit (12); a permanent magnet (124) being fixedly mounted around the lens unit to move with the lens unit; first and second coil seats (14, 15) with first and second coils (145, 155) wound thereon being mounted around the lens unit at two opposite sides of the magnet. When electric currents are supplied to the first and second coils, one of the coil seats generates an attraction force to the lens unit, and the other coil seat generates a repulsion force to the lens unit. A flange (143, 153) extends outwardly from an outer periphery of each coil seat at an end near the magnet to limit the magnet to move between the flanges of the first and second coil seats during movement of the lens unit.

Abstract: An auto-focusing lens of a camera includes a lens unit (11), a permanent magnet (12) being fixedly mounted around the lens unit to move with the lens unit, a first coil seat (15a) arranged on a first side of the magnet with a first winding (14a) wound thereon, and a second coil seat (15b) arranged on a second side opposite to the first side of the magnet with a second winding (14b) wound thereon. The first and second windings and the first and second coil seats are provided for establishing magnetic fields when electric currents are applied to the first and second windings. The magnetic fields interact with the magnetic field of the permanent magnet to drive the lens unit into movement between its front focus point (A) and its rear focus point (B).