| 摘要 |
PURPOSE: Optical head structure is provided to maintain optimum optical qualities for each light source through adjusting skews of each actuator, and to identify a sled driving direction and a radial direction of a disk. CONSTITUTION: According to kind of an inputted disk(308), a beam is outputted from first and second light sources(302). The beam passes through a collimator lens(303) for being a parallel beam. The beam is reflected on a reflecting mirror(304) for being concentrated on the disk by a first object lens(306) or a second object lens(307). A first actuator(309) having the first object lens, and a second actuator(310) having the second object lens are installed in a rotator(305). The rotator is rotated on a base(301), and a rotator guide(311) adjusts rotating angle of the rotator. Moreover, the base performs a sled driving toward a radial direction of the disk inputted along a main shaft(312) and a sub shaft(313). Herein, the rotator is rotated according to kind of the disk for locating the object lens to an innermost track of the disk. |
