Optical pick-up feeding device having a regulating member to adjust an orientation of a lead screw thereof
AssigneeSamsung Electronics Co., Ltd.
InventorYoung-sun Seo
Life of this patent
Estimating the term…
Abstract
An optical disc is read by being mounted on a turntable which rotates about a vertical axis, and moving an optical pick-up radially relative to the vertical axis. The optical pick-up is slidably mounted on a horizontal guide shaft and is threadedly mounted on a lead screw which is rotatable about a horizontal axis extending parallel to the guide shaft. A first end of the lead screw is connected to a motor, and the second end is mounted in a holder which is displaceable relative to the base to enable the second end to be displaced horizontally, in order to correct the horizontal orientation of the lead screw.
Claims20
An apparatus to at least one of record to and reproduce information from an optical disc, comprising:
- a base;
- a turntable mounted on the base and rotatable about a first vertical axis, to support the optical disc;
- a first motor mounted on the base to rotate the turntable;
- a horizontal guide shaft mounted on the base;
- a horizontal lead screw mounted on the base, rotatable about a horizontal axis extending parallel to the guide shaft, a portion of the lead screw having an external screw thread;
- an optical pick-up mounted on and slidable along the guide shaft, and operably connected to the screw thread of the lead screw to be displaced thereby in a direction oriented radially with respect to the first vertical axis, in response to the rotation of the lead screw about the horizontal axis;
- a second motor mounted on the base and operably connected to a first end portion of the lead screw, to rotate the lead screw;
- and
- a lead screw regulating member mounted on the base, to support a second end portion of the lead screw and being displaceable relative to the base, and rotatable about a second vertical axis to adjust a horizontal orientation of the lead screw relative to that of the horizontal guide shaft.
An apparatus to at least one of record to and reproduce information from an optical disc, comprising:
- a base;
- a turntable mounted on said base and rotatable about a first axis, to support and rotate the optical disc;
- an optical pick-up movable in a first direction perpendicular and radial to the first axis;
- a guide shaft mounted on said base and extending along the first direction, and in contact with said optical pickup to guide said optical pickup in the first direction;
- a lead screw rotatable about a second axis perpendicular to said first axis, and having a screw thread engaging said optical pickup to move said optical pickup in the first direction;
- and
- a regulating member mounted on said base, to support a portion of said lead screw, and rotatable about a third axis parallel to the first axis to adjust an orientation of the second axis of the lead screw in a plane perpendicular to the first axis and relative to an orientation of the guide shaft.
An apparatus to at least one of record to and reproduce information from an optical disc, comprising:
- a base;
- a turntable mounted on the base and rotatable about a vertical axis, to support the optical disc;
- a first motor mounted on the base to rotate the turntable;
- a horizontal guide shaft mounted on the base;
- a horizontal lead screw mounted on the base, rotatable about a horizontal axis extending parallel to the guide shaft, a portion of the lead screw having an external screw thread;
- an optical pick-up mounted on and slidable along the guide shaft, and operably connected to the screw thread of the lead screw to be displaced thereby in a direction oriented radially with respect to the vertical axis, in response to the rotation of the lead screw about the horizontal axis;
- a second motor mounted on the base and operably connected to a first end portion of the lead screw, to rotate the lead screw;
- and
- a lead screw regulating member mounted on the base, and rotatable about a second vertical axis to support a second end portion of the lead screw and being displaceable relative to the base to adjust only a horizontal orientation of the lead screw relative to that of the guide shaft.
An apparatus to at least one of record to and reproduce information from an optical disc, comprising:
- a base;
- a turntable mounted on the base and rotatable about a vertical axis, to support the optical disc;
- a first motor mounted on the base to rotate the turntable;
- a horizontal guide shaft mounted on the base;
- a horizontal lead screw mounted on the base, rotatable about a horizontal axis extending parallel to the guide shaft, a portion of the lead screw having an external screw thread;
- an optical pick-up mounted on and slidable along the guide shaft, and operably connected to the screw thread of the lead screw to be displaced thereby in a direction oriented radially with respect to the vertical axis, in response to the rotation of the lead screw about the horizontal axis;
- a second motor mounted on the base and operably connected to a first end portion of the lead screw, to rotate the lead screw;
- and
- a lead screw regulating member pivotally mounted to the base, to support a second end portion of the lead screw and being displaceable relative to the base to adjust a horizontal orientation of the lead screw relative to that of the horizontal guide shaft.
Dependencies are inferred from the claim text.