| 摘要 |
PROBLEM TO BE SOLVED: To improve work efficiency in adjustment work for optical components. SOLUTION: This device is provided with a moving base 11, moved in the radial direction of a disk recording medium 100, having an arrangement part 9 and having a semiconductor laser 13 and a diffraction grating 14 attached at predetermined positions, a fixing member 25 having fixing projections 27, 27 projected from the arrangement part in the state of being fixed in the arrangement part of the moving base, and an adjusting base 33 having insertion parts 33c, 33c into which the fixing projections are inserted, a fixed part 35 formed in the opening edge of the insertion part and fixed to the fixing projection, an optical detector 16 attached and moved in the optical axial direction of the returning light and in a surface orthogonal to the optical axial direction to adjust the position of the optical detector, with respect to the moving base. |
