Integrated structure of auto focus and optical image stabilizer mechanisms

An integrated structure of auto focus (AF) and optical image stabilizer (OIS) mechanisms, comprising:

• a lens holder configured to hold a lens therein, the lens and an image sensor being arranged on an optical axis, and an AF coil is disposed outside of the lens holder;
• a frame, wherein the lens holder is suspended in a center of the frame via a first spring, and inner edges of sidewalls of the frame are close to but do not contact an outer edge of the AF coil;
• a plurality of magnets disposed between the frame and the lens holder and corresponding to the outer edge of the AF coil, and electromagnetic induction occurs between the AF coil and the magnets, so that the lens holder is driven back and forth along a direction that is parallel to the optical axis;
• a plurality of suspension elements configured to suspend the frame in the direction that is parallel to the optical axis;
• and
• a first driver board disposed on a side of the frame close to the image sensor and having a plurality of first fine pattern coils, wherein each of the first fine pattern coils corresponds to one of the magnets, and electromagnetic induction occurs between the first fine pattern coils and the magnets, so that the frame is driven laterally with respect to the optical axis,
• wherein the frame comprises a metal material, and every two adjacent sidewalls of the frame and the outer edge of the AF coil form a corner space therebetween, and the magnets are respectively disposed in the corner spaces, and
• wherein each of the corner spaces further has an L-shaped plate disposed therein, the L-shaped plate including:
• a first plate having a triangular shape, wherein two sides of the first plate are respectively connected to a side of the frame which is away from the image sensor;
• and
• a second plate having a long late shape, wherein the second plate extends from a third side of the first plate toward a side of the frame which is close to the image sensor,
• wherein each of the magnets is close to the first plate and the two adjacent sidewalls, and a gap is formed between each of the magnets and the second plate, so that the AF coil is inserted into the gap.