Camera module
The present invention relates to a camera module, the camera module including a PCB (Printed Circuit Board) mounted with an image sensor, a base formed with an IRCF (Infrared Cut Filter) at a position corresponding to that of the image sensor, a bobbin including a coil winding unit vertically reciprocatively formed at an upper surface of the base and provided at a periphery, and a plurality of rib members protrusively formed from a floor surface, a yoke formed with a magnet arranged at a position corresponding to that of a coil of the bobbin, and a shock absorption member arranged at an ambience of the rib members and longer than the rib member, wherein the shock absorption member is compressed by being elastically deformed, in a case the base is brought into contact with the rib member.
1. A camera module, the camera module comprising:
a Printed Circuit Board (PCB) mounted with an image sensor;
a base disposed on an upper side of the PCB;
a bobbin movably disposed on an upper side of the base;
a first driving unit fixed at the bobbin;
a second driving unit facing the first driving unit and configured to move the first driving unit in response to electromagnetic interaction;
a bottom elastic member elastically supporting the bobbin; and
a shock absorption member disposed between the bobbin and the base;
wherein the shock absorption member includes a plurality of shock absorption units, the shock absorption units being spaced apart from each other; and
wherein at least a portion of the bottom elastic member overlaps a space between the neighboring shock absorption units in a vertical direction along or parallel to an optical axis of a lens.
2. The camera module of claim 1 , wherein the shock absorption member is compressed by being elastically deformed, in case the base is brought into contact with a plurality of rib members of the bobbin.
3. The camera module of claim 1 , wherein the shock absorption member is fixed to any one of the base and the bobbin.
4. The camera module of claim 1 , wherein the shock absorption member is elastically deformed or restored to a direction parallel with a lifting direction of the bobbin.
5. The camera module of claim 1 , wherein the shock absorption member is provided with any one of foam, rubber and urethane member, and absorbs shocks through elastic deformation in case of being brought into contact with the base.
6. The camera module of claim 1 , wherein each of the plurality of shock absorption units is provided in an arc shape and has a predetermined height.
7. The camera module of claim 1 , wherein the shock absorption member is formed on a floor surface of the bobbin.
8. The camera module of claim 1 , wherein the shock absorption member is formed on a surface facing the bobbin of the base.
9. The camera module of claim 1 , wherein the shock absorption member is formed on a floor surface of a rib member of the bobbin.
10. The camera module of claim 1 , wherein the shock absorption member is formed at a position not interfered with the bottom elastic member.
11. The camera module of claim 1 , wherein the bobbin comprises a rib member provided in a shape with a distal end surface tapering off toward the base.
12. The camera module of claim 1 , further comprising a yoke and wherein the yoke is provided in a shield can of metal material to shield electromagnetic wave and to form an extreme outline of the camera module.
13. The camera module of claim 1 , further comprising a yoke and wherein the yoke is formed with a resin material, and the yoke is formed at an outer side thereof with a housing member provided in a shield can of metal material to shield electromagnetic wave.
14. The camera module of claim 1 , further comprising a yoke and wherein an extreme outline of the yoke forms an extreme outline of the camera module, and a remaining portion of the yoke is integrally formed with the housing member to be on a same surface as that of an outer surface of the yoke.
15. A camera module, the camera module comprising:
a Printed Circuit Board (PCB) mounted with an image sensor;
a base mounted on an upper surface of the PCB and formed with an Infrared Cut Filter (IRCF) at a position corresponding to that of the image sensor;
an actuator formed on an upper surface of the base with one or more rib members protrusively formed from a floor surface of a bobbin;
a bottom elastic member supporting the bobbin; and
a shock absorption member arranged in a vicinity of the rib members and formed to be longer than the rib members;
wherein the shock absorption member includes a plurality of shock absorption units, the shock absorption units being spaced apart from each other; and
wherein at least a portion of the bottom elastic member overlaps a space between the neighboring shock absorption units in a vertical direction along or parallel to an optical axis of a lens.
16. A camera module, the camera module comprising:
a Printed Circuit Board (PCB) mounted with an image sensor;
a base disposed on an upper side of the PCB;
a bobbin movably disposed on an upper side of the base;
a first driving unit fixed at the bobbin;
a second driving unit facing the first driving unit and configured to move the first driving unit in response to electromagnetic interaction;
an upper elastic member elastically supporting the bobbin;
an upper frame disposed on an upper side of the bobbin; and
a shock absorption member interposed between the upper frame and the bobbin;
wherein the shock absorption member includes a plurality of shock absorption units, the shock absorption units being spaced apart from each other; and
wherein at least a portion of the upper elastic member overlaps a space between the neighboring shock absorption units in a vertical direction along or parallel to an optical axis of a lens.
17. The camera module of claim 16 , wherein the shock absorption member is arranged at a position not interfered with an upper elastic member elastically supporting the bobbin.
18. The camera module of claim 16 , wherein the shock absorption member is attached to and fixed at the upper frame with double-sided tape, and surface-contacts an entire upper surface of the bobbin, and the bobbin is formed at a position not interfered with the shock absorption member with an accommodation groove.