Abstract: An optical disk drive including: a housing; a tray installed in the housing; an optical pickup unit mounted in the tray; and a guide shaft mounted in the tray such that the optical pickup unit and the guide shaft are configured such that the optical pickup unit is reciprocally movable along the guide shaft.

Abstract: A disc drive including a tray, a housing configured to receive the tray, a pickup device installed on the tray, and a main circuit board installed on the tray and connected to the pickup device.

Abstract: An optical device and method are provided including a spindle motor mounted in a turn table on which an optical disk is attached and detached. The optical device includes a bracket secured with a stator of the spindle motor. The optical device also includes a tray body directly connected to the bracket. A skew angle of the spindle motor is adjusted while the bracket is assembled to the tray body, and an adjusting method of the optical device.

Abstract: An optical disc drive including a housing, a tray that is installed in the housing and that is configured to receive an optical disc, which has a spoke region on a surface thereof, an optical pickup unit which is attached to the tray, a main circuit board which is installed on the tray and is operatively connected to the optical pickup unit, and a spoke sensor which is arranged on the main circuit board and corresponds to the spoke region of the optical disk.

Abstract: Provided are a ground unit and a disk drive including the ground unit. The ground unit is disposed on a guide frame which is installed on opposite sides of a main chassis for guiding a guide chassis that is connected to a tray. The ground unit electrically connects the main chassis and the guide frame to each other.

Abstract: Provided is a disc drive including a tray which receives a disc thereon, slides into and out of a main chassis, and includes a pickup transporting unit which linearly moves a pickup base in a radial direction of the disc. The disc drive also includes a lock release unit which is driven by the pickup transporting unit to release locking of the tray from the main chassis, and includes a lock lever unit which includes a supporting hole for rotating the lock lever unit, and a hook unit to be combined with a locking protrusion arranged at the main chassis.

Abstract: Provided is a disc drive including a main chassis, and a tray, which may receive a disc thereon, and is arranged to slide into and out of the main chassis. The tray includes a pickup transporting unit which linearly moves a pickup base in a radial direction of the disc and includes a step motor and a lead screw. The lead screw includes a plurality of sections with different diameters.

Abstract: A disk drive that includes (i) a main chassis, (ii) a tray that is configured to have a disk removably mounted thereon and that is installed to slide into/out of the main chassis, and that includes a pickup transporting unit configured to move a pickup base back and forth in a radial direction of the disk, and (iii) a lock releasing unit that is arranged on the tray, that is driven by the pickup transporting unit, and that releases a lock of the tray from the main chassis.

Abstract: A disc drive including a tray, a housing configured to receive the tray, a pickup device installed on the tray, and a spindle motor including a rotator having built therein a permanent magnet, a stator including a magnetic coil, and a rotation axis supporting portion that is configured to support a rotation axis of the rotator and fixed to the tray.

Abstract: A disk drive including a main chassis; a tray on which a disk is to be removably mounted, the tray being installed to slide into/out of the main chassis, and including a pickup transporting unit that is configured to move a pickup base back and forth in a straight line in a radial direction of the disk. The pickup base includes an optical pickup installed thereon, The disk drive also includes a lock releasing unit that is arranged on the tray, is driven by receiving a driving force of the pickup transporting unit, and releases lock of the tray from the main chassis. The disk drive drives a lock releasing unit by using driving force of a pickup transporting unit.

Abstract: Provided is a disc drive including a tray which receives a disc thereon, slides into and out of a main chassis, and includes a pickup transporting unit which linearly moves a pickup base in a radial direction of the disc. The disc drive also includes a lock release unit which is driven by the pickup transporting unit to release locking of the tray from the main chassis, and includes a lock lever unit which includes a supporting hole for rotating the lock lever unit, and a hook unit to be combined with a locking protrusion arranged at the main chassis.

Abstract: Provided are a ground unit and a disk drive including the ground unit. The ground unit is disposed on a guide frame which is installed on opposite sides of a main chassis for guiding a guide chassis that is connected to a tray. The ground unit electrically connects the main chassis and the guide frame to each other.

Abstract: A disk drive including a main chassis; a tray on which a disk is to be removably mounted, the tray being installed to slide into/out of the main chassis, and including a pickup transporting unit that is configured to move a pickup base back and forth in a straight line in a radial direction of the disk. The pickup base includes an optical pickup installed thereon, The disk drive also includes a lock releasing unit that is arranged on the tray, is driven by receiving a driving force of the pickup transporting unit, and releases lock of the tray from the main chassis. The disk drive drives a lock releasing unit by using driving force of a pickup transporting unit.

Abstract: A disk drive that includes (i) a main chassis, (ii) a tray that is configured to have a disk removably mounted thereon and that is installed to slide into/out of the main chassis, and that includes a pickup transporting unit configured to move a pickup base back and forth in a radial direction of the disk, and (iii) a lock releasing unit that is arranged on the tray, that is driven by the pickup transporting unit, and that releases a lock of the tray from the main chassis.

Abstract: An optical disk drive including: a housing; a tray installed in the housing; an optical pickup unit mounted in the tray; and a guide shaft mounted in the tray such that the optical pickup unit and the guide shaft are configured such that the optical pickup unit is reciprocally movable along the guide shaft.

Abstract: A disc drive including a tray, a housing configured to receive the tray, a pickup device installed on the tray, and a spindle motor including a rotator having built therein a permanent magnet, a stator including a magnetic coil, and a rotation axis supporting portion that is configured to support a rotation axis of the rotator and fixed to the tray.

Abstract: An optical disc drive including a housing, a tray that is installed in the housing and that is configured to receive an optical disc, which has a spoke region on a surface thereof, an optical pickup unit which is attached to the tray, a main circuit board which is installed on the tray and is operatively connected to the optical pickup unit, and a spoke sensor which is arranged on the main circuit board and corresponds to the spoke region of the optical disk.

Abstract: A disc drive including a tray, a housing configured to receive the tray, a pickup device installed on the tray, and a main circuit board installed on the tray and connected to the pickup device.

Abstract: An optical device and method are provided including a spindle motor mounted in a turn table on which an optical disk is attached and detached. The optical device includes a bracket secured with a stator of the spindle motor. The optical device also includes a tray body directly connected to the bracket. A skew angle of the spindle motor is adjusted while the bracket is assembled to the tray body, and an adjusting method of the optical device.

Abstract: An optical disc drive includes a chassis assembly formed of metal and grounded, a tray supporting an optical disc and installed capable of sliding in and out of the chassis assembly, a cover-deck formed of metal and attached on a lower surface of the tray, an eject switch provided on a front surface of the tray to unlock the tray which is inserted in the chassis assembly and locked therein, an eject button provided in front of the tray to press the eject switch, a bracket formed of metal, provided between the eject switch and the eject button, and having a lead formed at one end portion thereof and contacting the cover-deck, and a static electricity discharge wire electrically connecting the cover-deck and the chassis assembly, wherein static electricity generated when the eject button is pressed sequentially flows through the bracket, the cover-deck, and the chassis assembly, and flows out to ground.