OPTICAL PICKUP

PROBLEM TO BE SOLVED: To easily and surely perform a temporary fixation of an optical element, such as a light intensity detection sensor, by making use of a restoration force at a turning-back position of a flexible wiring board; and to prevent an optical element from being peeled or dropped due to the deterioration of an adhesive or the like. SOLUTION: A light intensity detection sensor 7, as an optical element mounted on a mounting part 22 of a base body 10, is mounted on an element mounting area 52 of a flexible wiring board 50. The element mounting area 52 of the flexible wiring board 50 is turned back toward a wiring area 51 side to accommodate the turned-back part in a space between the mounting part 22 of the base body 10 and a backup part 27, facing each other, and consequently the element mounting area 52 is pressed to the mounting part 22 by means of a restoration force at the turning-back position β of the flexible wiring board 50. COPYRIGHT: (C)2006,JPO&NCIPI