An optical pick-up device that records and/or reproduces information on an
optical information recording medium, through the use of holography, can
prevent deterioration of recording and reproduction accuracy due to
vibrations from exterior or fluctuations in the relative positional
relationship with the recording medium. The optical pick-up device
includes a pick-up body and a position adjusting device. The position
adjusting device changes the position of the pick-up body in a direction
perpendicular to a surface of the recording medium, in a direction
parallel to the surface of the recording medium, and in such a direction
as to change the inclination of the pick-up body with respect to the
surface of the recording medium.
