Patent ID: 7787340

Claim:
An optical pickup, comprising: two objective lenses having different numerical apertures; and an objective lens holder that holds the two objective lenses, characterized in that the objective lens holder has two fixture holes that pass through from the lower surface to the upper surface to which the two objective lenses are attached at an upper portion with space between them, one of the fixture holes is provided with a tilt degree adjustment mechanism for supporting the lower surface of the objective lens that is attached to the fixture hole and adjusting an angle of the objective lens, the tilt degree adjustment mechanism includes a fixed lens supporting portion and a plurality of movable lens supporting portions that can slide in a direction along the fixture hole, the movable lens supporting portion includes a through hole that passes through from the lower surface of the lens holder to an upper portion of the fixture hole and a column member that is inserted in the through hole in a slidable manner, and the column member can be fixed to the through hole by adhesive.