Patent ID: 8024749

Claim:
An optical pickup, comprising: a light source; an optical system that guides light emitted from the light source to an information recording surface of an optical disc and guides reflected light from the optical disc to a predetermined position; a light receiving device that is disposed at the predetermined position and receives the reflected light to perform photoelectric conversion; a base on which the light source, the optical system and the light receiving device are mounted, the base includes a first bearing portion through which one of two guide shafts disposed in parallel to each other is inserted and a second bearing portion through which the other guide shaft is inserted, and is slidable along the two guide shafts, wherein under the first guide shaft that is inserted through the first bearing portion, a nut hold portion for holding a nut that connects a member of a drive mechanism for driving the base and the base to each other is disposed on the base, and the nut hold portion includes an insertion opening that allows the nut to be inserted along a direction substantially parallel to a longitudinal direction of the first guide shaft.