Lens Drive Device with Elastic Support for Shake Correction

The lens drive device is segmented into multiple independent holding bodies (first holding body for lens, second holding body for first holding body, third holding body for second holding body), each capable of movement in specific directions. This segmentation allows independent control of focus adjustment and shake correction functions, enabling effective shake correction while maintaining manageable structural complexity through modular design.

The patent implements a nested structure where the first holding body is disposed inside the second holding body, the second holding body is disposed inside the third holding body, and drive coils are wound around outer peripheral faces of cylindrical tube-like structures. This nesting arrangement allows multiple drive mechanisms to be compactly integrated, achieving shake correction capability while minimizing device volume.

The patent replaces complex mechanical support structures with elastic support members that utilize elastic deformation of the holding body walls themselves. The first, second, and third holding bodies are formed with elastic properties that provide smooth movement guidance and support, eliminating the need for additional mechanical guides or bearings while maintaining movement smoothness.