Patent ID: 7656757

Claim:
An optical pickup of an optical recording and/or reproducing apparatus, the optical pickup comprising: a plurality of object lenses used to record and/or reproduce information from/or various types of optical recording media of different recording densities; an actuator driving the object lenses in a focusing direction and supporting the object lenses to have rolling during movement in the focusing direction; and a pickup base installed to movably go and return in a radial direction of one of the optical recording media, and supporting the actuator, wherein the actuator forms a predetermined angle with respect to the pickup base, wherein the various types of optical recording media include a first optical recording medium, a second optical recording medium having less recording density than the first optical recording medium, and a third optical recording medium having less recording density than the second optical recording medium, wherein the plurality of object lenses comprise a first object lens corresponding to the first optical recording medium and a second object lens having less NA (Numerical Aperture) than that of the first object lens, corresponding to the second and third optical recording media, wherein the actuator comprises: a blade supporting the plurality of object lenses; a base frame being combined to the pick-up base; a support on both sides of an inner and outer circumference of the blade, the support connecting and supporting the blade on respective sides of the inner and outer circumferences, to the base frame in a radial direction of the optical recording media, and having different rigidities between both sides of the inner and outer circumferences; and a magnetic driving portion driving the blade in a focusing direction and/or track direction.