Camera Module with Processor-Based MEMS-Actuated Autofocus

A miniature MEMS autofocus camera module, comprising:

• an image sensor;
• an optical assembly including a movable lens group that comprises one or more lenses and that is coupled to a MEMS actuator such that the movable lens group is movable relative to the image sensor, wherein the optical assembly further includes at least a first fixed lens group that comprises one or more lenses and that is fixed relative to the image sensor;
• a processor;
• and
• a non-transitory digital storage device having code embedded therein for programming the processor to control an autofocus method designed to adjust a focus distance to an object disposed an arbitrary distance from the miniature MEMS autofocus camera module by actuating the MEMS actuator that is coupled with the movable lens group.