Patent ID: 7969853

Claim:
An optical pickup device for a recording medium, comprising: a first light source for emitting laser light having a first wavelength; a second light source for emitting laser light having a second wavelength; a third light source for emitting laser light having a third wavelength; a recording/reproducing objective lens for converging the laser light having the first wavelength and the laser light having the second wavelength on the recording medium; a servo objective lens for converging the laser light having the third wavelength on the recording medium; a recording/reproducing optical system for guiding the laser light having the first wavelength and the laser light having the second wavelength to the recording/reproducing objective lens, and guiding at least reflection light for reproducing, out of reflection light of the laser light having the first wavelength and the laser light having the second wavelength from the recording medium, to a reproducing photodetector; a servo optical system for guiding the laser light having the third wavelength to the servo objective lens, and guiding reflection light of the laser light having the third wavelength from the recording medium to a servo photodetector; a holder for integrally holding the recording/reproducing objective lens and the servo objective lens; and an objective lens actuator for driving the holder, wherein the recording/reproducing optical system includes an optical element for displacing a focus position of the laser light having the first wavelength and a focus position of the laser light having the second wavelength in an optical axis direction of the laser light having the first wavelength and the laser light having the second wavelength.