Patent ID: 8004956

Claim:
An optical pickup comprising: a first laser source; a second laser source configured to emit a laser beam having a wavelength different from that of a laser beam emitted from the first laser source; an optical component having an optical element in which a dichroic mirror film and a polarization beam splitter (PBS) mirror film are formed in parallel with each other, a ¼ wavelength plate, and a nonpolarization mirror; and objective lenses configured to focus the laser beams emitted from the laser sources onto an optical disc; wherein the dichroic mirror film and the polarization beam splitter (PBS) mirror film of the optical element make an angle of 45 degrees to the mirror surface of the nonpolarization dichroic mirror film, and laser beams emitted from the first and second laser source are incident upon the optical component, and the laser beams emerged from the optical component are incident upon the objective lenses; and wherein the direction in which the laser beam emitted from the first laser source is incident upon the optical component and the direction in which the laser beam emitted from the second laser source is incident upon the optical component are different from each other by an angle of 180 degrees.