Patent ID: 7885165

Claim:
An optical pickup device, comprising: a light source projecting a light to record and reproduce information with respect to an optical recording medium; a collimating lens disposed on a path of the light to converge and convert the light into a parallel light; an object lens condensing the parallel light from the collimating lens and project the parallel light onto the optical recording medium; an optical element disposed between the collimating lens and the object lens; a first actuator moving the collimating lens along the optical axis to thereby control a distance between the collimating lens and the optical element; a first controller for driving the first actuator to find a position for the collimating lens that reduces aberration generated in the light being projected to the optical recording medium; a second actuator driving the optical element and moving the optical element with respect to the object lens; and a second controller for driving the second actuator to find a condition of the optical element, for reducing the aberration generated in the light being projected onto the optical recording medium.