Patent ID: 8824253
Filing Date: 2014-09-02
Classification: G11B

Abstract:
1. An optical pickup comprising: an optical unit comprising at least one light source configured to emit a light beam for recording/reproducing information to/from an information storage medium, and at least one photodetector configured to detect an information signal and/or an error signal by detecting a light beam reflected from the information storage medium; an objective lens configured to focus a light beam incident from the optical unit on the information storage medium; and an aperture that is disposed at a side at which the light beam is incident from the optical unit on the objective lens, and configured to limit a range of the light beam such that a width of the light beam incident on the objective lens in a first direction corresponding to a height direction of the optical pickup is less than a width in a second direction that is perpendicular to the first direction, wherein the aperture is integrally formed with the objective lens.