| 摘要 |
The soldered connection of an end portion of a cable extending from each element with a main substrate is prevented from being broken. An end portion of a cable (t1) extending from a light source element (LD) that is fixed to a standing frame (2A) on a slide base (2) movable back-and-forth in the radial direction of a disk passes through an insertion opening (9) in the slide base (2) to be connected by soldering (8b) to a main substrate (3), and an extended portion (15) extending from the peripheral edge of the insertion opening (9) close to the main substrate (3) is formed integrally with the slide base (2), the clearance "² " between the leading end face (15A) of the extended portion (15) and the main substrate (3) being set slightly greater than the thickness "d" of the cable (t1), so that the cable (t1), if tensioned when positioning the light source element (LD), is brought into contact with the edge (15a) of the leading end face (15A).
|
