Lens driving device and camera module including lens driving device

A camera module comprising:

• a housing;
• a lens barrel in which at least one lens is disposed;
• a carrier disposed in the housing;
• a focus unit configured to move the carrier relative to the housing in an optical axis direction of the at least one lens;
• and
• an image stabilization unit comprising a lens holder in which the lens barrel is disposed, and a support frame having a quadrangular frame structure comprising four corner regions and supporting the lens holder, the support frame, the lens holder, and the lens barrel being disposed in the carrier, the image stabilization unit being configured to move the lens holder and the lens barrel relative to the carrier in a direction perpendicular to the optical axis direction,
• wherein the support frame comprises:
• a first sub-frame comprising a connection-type molded portion connecting three corner regions of the quadrangular frame structure, and an island-type molded portion separated from the connection-type molded portion and disposed in a fourth corner region of the quadrangular frame structure;
• and
• a second sub-frame made of a material having a higher strength than a material of which the first sub-frame is made, the second sub-frame connecting the four corner regions of the quadrangular frame structure, and being combined with the connection-type molded portion and the island-type molded portion.

A lens driving device comprising:

• a carrier;
• and
• an image stabilization unit comprising a lens holder configured to hold a lens barrel, and a support frame having a quadrangular frame structure comprising four corner regions and supporting the lens holder, the support frame and the lens holder being disposed in the carrier, the image stabilization unit being configured to move the lens holder relative to the carrier in a direction perpendicular to an optical axis direction of the lens holder,
• wherein the support frame comprises:
• a first sub-frame comprising two molded portions separated from each other and not connected to any other portion of the first sub-frame;
• and
• a second sub-frame made of a material having a higher strength than a material of which the first sub-frame is made, the second sub-frame connecting the four corner regions of the quadrangular frame structure and being combined with the two molded portions of the first sub-frame, and
• the lens holder comprises an image stabilization magnet mounting surface corresponding to a space between the two molded portions of the first sub-frame.