Optical disc drive capable of adjusting skews and compensating for alignment errors
First Claim
1. An optical disc drive comprising:
- a turntable on which an optical disc is loaded and rotated;
an optical pick-up arranged to move along a radial direction of the optical disc loaded on the turntable and to project a light beam onto the optical disc to record and reproduce information onto and from the optical disc;
pick-up shafts for guiding the movement of the optical pick-up;
an adjusting means for inducing the vertical movement of the pick-up shafts to adjust a slope of the optical pick-up; and
shaft guides for guiding the pick-up shafts to travel vertically and horizontally.
1 Assignment
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Accused Products
Abstract
An optical disc drive adjusts the skew and the misalignment of the rotation center of an optical disc and a light beam center of an optical pick-up. The optical disc drive includes an optical pick-up recording/reproduce information onto/from the optical disc, pick-up shafts guiding the optical pick-up, an adjusting device moving the pick-up shafts vertically to adjust a slope of the optical pick-up, and shaft guides guiding the pick-up shafts to travel vertically and horizontally. The shaft guides include guide surfaces contacting the pick-up shafts. The shaft guides guide the pick-up shafts to travel in the direction near the turntable when the pick-up shafts move upward, and guide the pick-up shafts to move in the direction far way from the turntable when the pick-up shafts move downward.
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Citations
17 Claims
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1. An optical disc drive comprising:
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a turntable on which an optical disc is loaded and rotated;
an optical pick-up arranged to move along a radial direction of the optical disc loaded on the turntable and to project a light beam onto the optical disc to record and reproduce information onto and from the optical disc;
pick-up shafts for guiding the movement of the optical pick-up;
an adjusting means for inducing the vertical movement of the pick-up shafts to adjust a slope of the optical pick-up; and
shaft guides for guiding the pick-up shafts to travel vertically and horizontally. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An optical disc drive comprising:
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a turntable;
an optical pick-up arranged to travel along a radial direction of the optical disc loaded on the turntable, and to project a light beam onto an optical disc to record and reproduce information onto and from the optical disc;
pick-up shafts for guiding the movement of the optical pick-up; and
a skew adjusting device for adjusting the height of the pick-up shafts to adjust a slope of the optical pick-up;
wherein the skew adjusting device comprises;
adjusting means for adjusting the height of the pick-up shafts;
shaft guides including slopes for allowing the pick-up shafts to travel in a diagonal direction when the pick-up shafts are moved by the adjusting means; and
elastic members for elastically biasing the pick-up shafts toward the slopes. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An optical disc drive comprising:
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an optical disc;
pick-up shafts;
an optical pick-up supported by the pick-up shafts, to move along the pick-up shafts in a radial direction of the optical disc, for projecting a light beam onto the optical disc to record and reproduce information onto and from the optical disc; and
at least one skew adjusting device installed at a distal end of one of the pick-up shafts, to adjust the height of the corresponding pick-up shaft in both a vertical direction and a horizontal direction to compensate for any misalignment between a rotation center of the optical disc and a light beam center of the optical pick-up. - View Dependent Claims (14, 15, 16, 17)
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Specification