Patent ID: 6873592
Filing Date: 2005-03-29
Classification: G11B

Abstract:
1. A slim optical pickup apparatus which records/reads information from a recording medium, comprising: a light source which emits a beam; an objective lens which focuses the beam incident from the light source on the recording medium; a first optical device which is provided on an optical path between the light source and the objective lens, and converts the beam incident from the light source into a parallel beam; an optical axis shifting unit which is provided on an optical path between the first optical device and the objective lens, and shifts an optical axis of the parallel beam passing through the first optical device in parallel in a direction; a second optical device which is provided on an optical path between the optical axis shifting unit and the objective lens, and reflects the parallel beam passing through the optical axis shifting unit toward the recording medium; and a photodetector which receives a return beam reflected from the recording medium and passed through the optical axis shifting unit, and performs a photoelectric conversion, wherein the optical axis shifting unit is an optical plate.