CROSS-REFERENCE TO RELATED APPLICATIONS

This application is the U.S. national stage application of International Patent Application No. PCT/KR2018/003958, filed Apr. 4, 2018, which claims the benefit under 35 U.S.C. § 119 of Korean Application Nos. 10-2017-0044573, filed Apr. 6, 2017; 10-2017-0098109, filed Aug. 2, 2017; and 10-2017-0102905, filed Aug. 14, 2017, the disclosures of each of which are incorporated herein by reference in their entirety.

TECHNICAL FIELD

Embodiments relate to a lens moving apparatus and to a camera module and an optical device each including the same.

BACKGROUND ART

Technology of a voice coil motor (VCM), which is used in existing general camera modules, is difficult to apply to a miniature low-power camera module, and studies related thereto have been actively conducted.

In the case of a camera module configured to be mounted in a small electronic product, such as a smart phone, the camera module may frequently receive shocks when in use, and may undergo fine shaking due to, for example, the shaking of a user's hand. In consideration thereof, technology enabling a device for inhibiting handshake to be additionally installed to a camera module is being developed.

DISCLOSURE

Technical Problem

Embodiments provide a lens moving apparatus capable of reducing the intensity of current flowing through the support members and thus reducing power consumption and of inhibiting deterioration of reliability in OIS driving attributable to a reduction in the diameter of an OIS wire, and a camera module and an optical device each including the lens moving apparatus.

Technical Solution

A lens moving apparatus according to an embodiment includes a housing, a bobbin disposed in the housing, a first coil disposed on the bobbin, a first magnet disposed on the housing, an upper elastic member coupled both to the bobbin and to the housing, a circuit board disposed under the housing, a base disposed under the circuit board and including a first hole, a conductive pattern disposed on the base and conductively connected to the circuit board, and a support member coupled at one end thereof to the upper elastic member and at a remaining end thereof to the conductive pattern, wherein the remaining end of the support member is coupled to the base through the first hole in the base.

The base may further include a second hole spaced apart from the first hole.

The conductive pattern may include a first conductive pattern disposed on the upper surface of the base, a second conductive pattern disposed on the lower surface of the base, and a third conductive pattern disposed in the first hole and the second hole so as to connect the first conductive pattern to the second conductive pattern.

The first hole may not overlap the circuit board in a vertical direction, and the second hole may overlap the circuit board in the vertical direction.

The first conductive pattern and the remaining end of the support member may be coupled to each other via a solder.

The base may further include a groove communicating with a lower portion of the first hole, and a portion of the conductive pattern may be disposed in the groove.

The circuit board may include a pad coupled to the first conductive pattern.

The lens moving apparatus may further include a damper disposed in the first hole.

The size of the first hole may be larger at an upper portion thereof than at a lower portion thereof.

The lens moving apparatus may further include a second coil disposed on the circuit board, a second magnet disposed on the bobbin, a first position sensor disposed on the housing so as to correspond to the second magnet, and a second position sensor disposed on the base so as to correspond to the first magnet.

Advantageous Effects

Embodiments are able to reduce the intensity of current flowing through the support members and thus reduce power consumption and to inhibit deterioration of reliability in OIS driving attributable to reduction in the diameter of an OIS wire.

