Patent ID: 7814503

Claim:
An optical disk device comprising: a base; a disk rotation driving mechanism provided on said base, said disk rotation driving mechanism rotating an optical disk; an optical pickup on which an optical system is mounted, said optical system emitting a light beam onto said optical disk rotated by said disk rotation driving mechanism, said optical pickup having a main shaft-receiving portion and a secondary shaft-receiving portion; a main shaft and a secondary shaft that respectively engages said main shaft-receiving portion and said secondary shaft-receiving portion, so as to guide said optical pickup movably in a radial direction, and an adjustment holding portion that holds said secondary shaft so that an inclination of said secondary shaft with respect to said base is adjustable, wherein said adjustment holding portion is mounted to said base at first, second and third supporting points, wherein heights of said second and third supporting points are adjustable in the direction of a rotation axis of said optical disk, wherein, when said optical pickup is located at a first position on the inner circumference side of said optical disk, said secondary shaft-receiving portion is located on a line connecting said first supporting point and said second supporting point, and wherein, when said optical pickup is located at a second position on the outer circumference side of said optical disk, said secondary shaft-receiving portion is located on a line connecting said first supporting point and said third supporting point.