Patent ID: 6366551
Filing Date: 2002-04-02
Classification: G11B

Abstract:
In an optical disc driver having a spindle motor fixed on a chasis for carrying an optical disc to be read, and an optical pickup head including a laser beam for reading data from the optical disc, a tilt angle adjusting mechanism for adjusting an optical axis of the pickup head perpendicular to the plane of the optical disc, comprising:a first and a second guide rods, parallel to each other, for carrying the optical pickup head, each of the guide rods includes a rotation prevention end and an adjusting end; an adjusting element, connected to a longitudinal adjusting end of the guide rod, for generating an axial movement along the axis of each of the guide rods; and a fixed holder and an adjusting holder for supporting the guide rod, being fixed on the chassis for respectively supporting the two ends of each of the guide rods, wherein the adjusting holder receives the adjusting element for adjusting each of the guide rods moving toward or away from the optical disc, and the fixed holder is furnished with a slot for tightly receiving the rotation prevention end of each of the guide rods so as to prevent the rods from rotation during adjustment.