Patent ID: 7372786

Claim:
An optical pickup actuator comprising: a yoke comprising a plate member and four magnet guides protruding from a lateral side of the plate member in a direction vertical to a topside of the plate member and configuring two confronting pairs with each magnet guide left a prescribed distance from adjacent magnetic guides; first to fourth magnets adhering closely to insides of the magnet guides, respectively to provide an inside space on the plate member of the yoke; a shaft protruding from the plate member of the yoke within the inside space surrounded by the first to fourth magnets; a lens holder loaded on the plate member of the yoke within the inside space surrounded by the first to fourth magnets to have the shaft inserted therein and to have first and second disc lenses provided thereon; iron piece guides protruding from a lateral side of the lens holder to confront the first to fourth magnets and to have recesses inside, respectively; first to fourth iron pieces fitted in the recesses of the iron piece guides, respectively; and coils wound on outsides of the iron piece guides, respectively.