Patent ID: 7366079

Claim:
An optical pickup device which focuses a light beam on a recording surface of a corresponding one of two or more storage media of different types and receives a return light from the recording surface, the optical pickup device comprising: a plurality of light sources respectively outputting light beams to the storage media individually, and the respective light beams having different wavelengths; an optical system which leads the return light beam to a predetermined light-receiving location and includes an object lens and an optical element, the object lens focusing each light beam from the plurality of light sources on the recording surface of a corresponding storage medium, and the optical element converting each light beam directed toward the object lens into a parallel light beam; and a photodetector arranged at the light-receiving location and receiving the return light beam, wherein each light beam incident to the optical element has an angle of divergence that is inversely proportional to a wavelength of the light beam, the optical system comprises an adjustment optical element which adjusts an angle of divergence of a light beam output from at least one of the plurality of light sources and directed toward the optical element, the adjustment optical element is provided to select a specific wavelength of the light beam with which the angle of divergence is adjusted, and the plurality of light sources includes a first light source which outputs a first light beam with a first wavelength and a second light source which outputs a second light beam with a second wavelength longer than the first wavelength.