OPTICAL PICKUP

PROBLEM TO BE SOLVED: To provide an optical pickup capable of stabilizing the recording and reproducing operation of a disk device. SOLUTION: Projection parts 1c are projected to four corners of a loading part 1b which a lens holder 1 with which the bottom surface of an edge 3 provided at a rim part of an objective lens 2 is brought into contact has. Each projection part 1c has a positioning surface 1d to which an outer surface 3a of the cross section 3 is brought into contact and a recessed part 13 adjacent to the positioning surface 1d. In addition, a recessed part 1g is provided so that a part of the recessed part 1g is positioned to a lower part of a part of the bottom of the cross section 3 at a lower part of the recessed part 1e, adhesive agents are injected into the recessed parts 1e and 1g and the cross section 3 is adhered to the lens holder 1. COPYRIGHT: (C)2007,JPO&INPIT