Optical Element Drive Layout for Low-Height Miniaturization

The patent applies nesting by placing the coil assembly inside the magnet assembly, and the magnet assembly inside the holder assembly, creating a nested structure where components are contained within one another. This nested arrangement significantly reduces the overall height of the optical element driving mechanism while maintaining all necessary functional components for driving the optical element.

The patent transitions from a conventional stacked arrangement (height-oriented) to a nested arrangement (radial/dimensional reorganization). By reorganizing components in a nested configuration rather than stacking them vertically, the design reduces height in the optical axis direction while accommodating all components within a more compact three-dimensional space.

The patent employs composite material construction, particularly in the holder assembly which combines magnetic materials, magnetic-resistant materials, and non-magnetic materials. This composite approach allows the structure to maintain high structural strength despite reduced overall height, as different materials contribute their specific mechanical and magnetic properties to create a robust compact design.

The patent utilizes spherical or curved magnetic elements arranged in a nested configuration. The curved geometry of these elements provides structural strength while enabling compact nesting arrangements. The spherical shapes allow for optimal space utilization and maintain mechanical integrity within the reduced height constraint.