Patent ID: 8593744

Claim:
An optical device comprising: a movable body which holds a lens for photography; a fixed body which movably holds the movable body; a drive magnet and a drive coil for relatively moving the movable body with respect to the fixed body; and a metal member which is fixed to the drive magnet; wherein the drive magnet is fixed to one of the movable body and the fixed body, and the drive coil is fixed to the other of the movable body and the fixed body, and the drive magnet and the drive coil are oppositely disposed to each other through a predetermined gap space; wherein a nickel plating layer containing at least nickel is formed on a surface of the drive magnet and a surface of the metal member, and wherein the drive magnet and the metal member are joined to each other by a joining layer which is made of tin-based metal containing at least tin and is disposed between the drive magnet and the metal member.