Camera module
The present invention relates to a camera module including an auto focusing module vertically moving a lens, a handshake compensation module wrapping the auto focusing module, and tilting the auto focusing module to compensate handshake, a circuit board electrically connected to the handshake compensation module, a bottom case supporting the circuit board and coupled to the auto focusing module, a main circuit board fixed to bottom case and electrically connected to an image sensor module and the circuit board, and a spring unit arranged at a periphery of the main circuit board and having a symmetrical opening having thereinside a gap spaced apart at a predetermined distance.
1. A camera module, the camera module comprising:
an auto focusing module including a first housing, a bobbin disposed at an inner side of the first housing, a first driving unit disposed at the bobbin, a second driving unit disposed at the first housing and facing the first driving unit;
a third driving unit facing the second driving unit;
a first circuit board including a body member supporting the auto focusing module and an spring member coupled with the body member; and
an image sensor mounted on an upper surface of the body member,
wherein the body member and the auto focusing module are tiltably supported by the spring member.
2. The camera module of claim 1 , wherein the body member is formed as a Rigid Printed Circuit Board (RPCB), and the spring member is formed as a Flexible Printed Circuit Board (FPCB).
3. The camera module of claim 2 , wherein the RPCB and the FPCB are integrally formed as a Rigid Flexible Printed Circuit Board (RFPCB).
4. The camera module of claim 1 , wherein the first driving unit includes a first coil unit, the second driving unit includes a magnet unit, and the third driving unit includes a second coil unit.
5. The camera module of claim 4 , wherein the magnet unit includes an auto focusing magnet facing the first coil unit and a handshake compensation magnet facing the second coil unit.
6. The camera module of claim 1 , wherein the spring member includes a first spring unit coupled with the body member, a second spring unit spaced from the first spring unit, and a third spring unit connecting a portion of the first spring unit and a portion of the second spring unit, and
wherein the third spring unit includes a first portion disposed at one side of the body member and a second portion disposed at opposite side of the body member.
7. The camera module of claim 6 , wherein a thickness of the first spring unit is smaller than that of the second spring unit.
8. The camera module of claim 6 , wherein the first circuit board further includes an opening disposed between the first spring unit and the second spring unit, and
wherein the opening is extended along a periphery of the body member from the first portion to the second portion.
9. The camera module of claim 8 , wherein the opening is formed along three successive surfaces of the body member in a slit shape.
10. The camera module of claim 1 , further comprising:
a second housing disposed at an outer side of the first housing, and
wherein the third driving unit is disposed at the second housing.
11. The camera module of claim 10 , further comprising:
a first elastic member coupled to the bobbin and the first housing, and
a second elastic member coupled to the first housing and the second housing.
12. The camera module of claim 1 , further comprising:
a bottom case coupled to a bottom surface of the auto focusing module and the upper surface of the body member, and
a second circuit board disposed at the bottom case and electrically connected to the first driving unit and the third driving unit.