LENS DRIVE DEVICE, IMAGING DEVICE, AND LENS POSITION ADJUSTMENT METHOD FOR IMAGING DEVICE

摘要

A lens drive device (10) has a lens frame (3) for holding a small diameter lens (2a) and a large diameter lens (2b). A guide shaft (4) is slidably engaged to a guide hole (35), in the optical axis direction, formed in the lens frame (3). A drive coil (5) is wound on a coil holding section (34) of the lens frame (3), the coil holding section (34) being formed adjacent to a small diameter frame section (31) holding the small diameter lens (2a). Magnets (7) are arranged so as to clasp the coil (5) between the guide shaft (4) and the magnets. The guide shaft (4) is fixed to a yoke (6), and the yoke (6) and the guide shaft (4) form a part of a magnetic circuit including the magnets (7). The coil (5) is fixed to the coil holding section (34) adjacent to the small diameter frame section (31) of the lens frame (3), and this reduces dimensions of the lens drive device (10), realizing downsizing and weight lightening of the lens drive device (10).