| 摘要 |
An optical pick-up apparatus for a disc player which can be manufactured in a small size with a simple construction. The apparatus has a base plate provided at one end thereof with a support plate, a permanent magnet attached to the support plate, a gel holder fixed to an upper surface of the base plate, a suspension PCB attached to a rear surface of the gel holder, a bobbin having a focusing coil and a tracking coil which are wound around the bobbin, a pair of coil PCBs which are attached to a front surface of the bobbin and to which the focusing and tracking coils are connected, an object lens holder having an object lens installed thereon and attached to front surfaces of the pair of the coil PCBs, and two pairs of suspension wires for suspending the object lens holder such that the object lens holder is movable in a focusing direction or a tracking direction. The bobbin has a horizontal H shape defined by an upper bar, a lower bar which is parallel to the upper bar, and a column provided between the upper and lower bars. The tracking and focusing coils can be precisely positioned with respect to the permanent magnet and can be easily wound around the bobbin, so the assembling work thereof is easily carried out and the operating efficiency thereof is improved. |
