Patent ID: 7564745

Claim:
An optical pickup comprising: a first optical system configured to collect a first laser light emitted from a first laser light source onto a first disk and configured to receive and guide reflected light from the first disk to a first photoreceptor, the first laser light having a first wavelength; a second optical system configured to collect a second laser light emitted from a second laser light source onto a second disk and configured to receive and guide reflected light from the second disk to a second photoreceptor, the second laser light having a second wavelength that is longer than the first wavelength of the first laser light; a second objective lens configured to collect the second laser light onto the second disk and configured to receive the reflected light from the second disk, the second objective lens being movable in a radial direction passing through the center of the second disk; a first objective lens configured to collect the first laser light onto the first disk and configured to receive and guide the reflected light from the first disk, the first objective lens being disposed offset from the radial direction and adjacently to the second objective lens; an optical-path combiner that is positioned between the first and second light sources and the first and second objective lenses and that is configured to combine the first and second optical systems to form a combined optical path; and an optical-path separator that is positioned between the optical-path combiner and the first and second objective lenses and that is configured to separate the combined optical path before the combined optical path reaches the first and second objective lenses.