Patent ID: 7680407

Claim:
An auto-focus camera comprising: a lens unit including a barrel and a lens received in the barrel; a permanent magnet being fixedly mounted around the barrel of the lens unit, and moving with the lens unit when the lens unit is in telescopic movement during operation; a coil seat with a coil wound thereon arranged at a side of the permanent magnet; another coil seat with another coil wound thereon arranged at an opposite side of the permanent magnet; and an interlocking device formed between the barrel and the coil seat for guiding telescopic movement of the lens unit; wherein the interlocking device comprises at least one groove defined in one of the barrel and the coil seat, and at least one block formed on the other one of the barrel and the coil seat engaging into the at least one groove; and wherein each of the coil seats comprises a basewall, a ring-shaped flange extending perpendicularly from an inner circumference of the basewall and a plurality of mounting pins extending perpendicularly from the basewall, the coils respectively wound on the flanges, ends of the coils wound on the mounting pins.