Patent ID: 7924688

Claim:
An optical pickup, comprising: a first objective lens; a second objective lens having a numerical aperture different from that of the first objective lens; and an objective lens holder that holds the first objective lens and the second objective lens, characterized in that the first objective lens is attached to the objective lens holder via a spacer, the spacer has a cylindrical shape, a lens supporting portion formed on an upper surface side thereof that receives the first objective lens, and an engaging portion formed on the upper surface, the objective lens holder has a first fixture hole that passes through from the lower surface to the upper surface to which the spacer with the first objective lens is attached, and a second fixture hole that passes through from the lower surface to the upper surface to which the second objective lens is fixed, and the first fixture hole has a spacer supporting portion having a stepped shape so as to have a bottom surface, the spacer supporting portion supporting the spacer in a rotatable manner with a lower surface of the spacer kept in contact with the bottom surface.