An optical pickup lens device includes, in the order from the light source
side, collimating means for converting a bundle of rays into parallel
rays or predetermined convergent or divergent rays, the collimating means
being movably held along a direction of an optical axis of a bundle of
rays emitted from a light source; an aberration correcting element for
allowing a bundle of rays emitted from the collimating means to be
transmitted therethrough; and an objective lens element having a
numerical aperture of 0.8 or more, and converging a bundle of rays coming
from the aberration correcting element onto the information recording
medium to form a spot. The aberration correcting element and the
objective lens element are integrally held together in a direction
orthogonal to the optical axis so as to perform tracking on the
information recording medium, and satisfy predetermined conditions.