Lens moving unit and camera module having the same
First Claim
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1. A lens moving unit, the lens moving unit comprising:
- a first lens moving unit including a bobbin mounted at an inner side with at least one lens and formed at a periphery with a first coil, and a housing configured to support a magnet arranged at a surrounding of the bobbin to move the bobbin and the first coil to a first direction parallel with an optical axis in response to interaction between the magnet and the first coil; and
a second lens moving unit including a base spaced apart at a predetermined distance from the bobbin and the first lens moving unit, a support member configured to movably support the first lens moving unit to second and third directions relative to the base and to supply an electric power to the first coil, and a circuit board including a detection sensor configured to detect positions of the second and third directions of the second lens moving unit relative to a second coil and the base opposite to the magnet of the first lens moving unit to thereby move an entire first lens moving unit including the bobbin to the mutually different second and third directions which is perpendicular to the optical axis in response to the interaction between the magnet and the second coil.
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Accused Products
Abstract
A lens moving unit for a camera module is disclosed. The lens moving unit includes a first lens moving unit, a second lens moving unit, and a cover member to encompass the first and second lens moving units by being coupled to a base. The first lens moving unit moves in response to the interaction between a magnet and a coil. The lens moving unit is configured to miniaturize a camera module and configured to include a handshake correction function for enhancement of operational reliability to simplify an assembly process.
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Citations
34 Claims
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1. A lens moving unit, the lens moving unit comprising:
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a first lens moving unit including a bobbin mounted at an inner side with at least one lens and formed at a periphery with a first coil, and a housing configured to support a magnet arranged at a surrounding of the bobbin to move the bobbin and the first coil to a first direction parallel with an optical axis in response to interaction between the magnet and the first coil; and a second lens moving unit including a base spaced apart at a predetermined distance from the bobbin and the first lens moving unit, a support member configured to movably support the first lens moving unit to second and third directions relative to the base and to supply an electric power to the first coil, and a circuit board including a detection sensor configured to detect positions of the second and third directions of the second lens moving unit relative to a second coil and the base opposite to the magnet of the first lens moving unit to thereby move an entire first lens moving unit including the bobbin to the mutually different second and third directions which is perpendicular to the optical axis in response to the interaction between the magnet and the second coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 34)
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8. A lens moving unit, the lens moving unit comprising:
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a first lens moving unit including a bobbin mounted at an inner side with at least one lens and formed at a periphery with a first coil, and a housing configured to support a magnet arranged at a surrounding of the bobbin to move the bobbin and the first coil to a first direction parallel with an optical axis in response to interaction between the magnet and the first coil; a second lens moving unit including a base spaced apart at a predetermined distance from the housing, a support member configured to movably support the first lens moving unit to second and third directions relative to the base and to supply an electric power to the first coil, a second coil arranged opposite to the magnet of the first lens moving unit, and a circuit board including a detection sensor configured to detect a position of the first direction of the housing relative to the base by detecting a sensing magnet mounted on the first lens moving unit and changes in magnetic field of the sensing magnet to thereby move the housing to the mutually different second and third directions which is perpendicular to the optical axis in response to the interaction between the magnet and the second coil; and a cover member configured to encompass the first and second lens moving units by being coupled to the base. - View Dependent Claims (9, 10, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification