Patent attributes
An object of the present invention is to provide an optical pickup device with high reliability and reduced thickness, which can form an accurate beam spot without providing a thin film section in a lens holder and without influence of peripheral light of laser beam. There is provided an optical pickup device for driving and controlling a lens holder 1 holding an objective lens 4 by using a moving coil method, and adjusting an irradiation position of laser beam on an optical disk by displacing the objective lens 4, wherein a cut-out portion 1d is formed at a position closest to a rising mirror 10 on an opening 1a which is formed in the lens holder 1 for holding the objective lens 4, and a light-shielding ring R for sealing the cut-out portion 1d is arranged to fix the objective lens 4.
