An optical component-driving device for driving an optical component along a tracking axis and/or a focusing axis includes a magnet, a yoke and a coil. The coil is fixed to a moveable member which houses the optical component to be moved. The coil is disposed in spaced, opposed relation to two opposite...http://www.google.de/patents/US5043972?utm_source=gb-gplus-sharePatent US5043972 - Optical component-driving device for optical pickup
