Patent ID: 6483798
Filing Date: 2002-11-19
Classification: G11B

Abstract:
A tilt angle adjusting mechanism for an optical disc driver to adjust a pickup head comprising:a first and a second guide rods positioned in an X-Y plane and being parallel to the Y-axis; an optical pickup head, contacting the first guide rod at a first and a second points along the Y-axis, and contacting the second guide rod at a third point; a first and second adjusting elements normally contacting the first guide rod at the first and second points respectively; and a third adjusting element normally contacting at the third point to the second guide rod; an elongated hole having a generally elliptically shaped oblong cross-section extending along the Y-axis for the first guide rod to pass therethrough and allow the optical pickup head at the first and the second adjusting points to be moved along a Z-axis perpendicular to the X-Y plane by the first and the second adjusting elements respectively to thereby allow the optical pickup head to rotate about the X-axis; and an L-shape base for supporting the second guide rod and receiving the third adjusting element so as to allow the optical pickup head at the third adjusting point to be moved along the Z-axis by the third adjusting element, to thereby allow the optical pickup head to rotate about the Y-axis.