| 摘要 |
PROBLEM TO BE SOLVED: To accurately perform positioning using simple constitution. SOLUTION: A positioning mechanism 100 adjusts the fixed position of a laser light-emitting device 10, constituted by fixing by screw-down the sliding surface 16a of a guide block 16 for supporting the lens barrel 15 of a collimator lens 14 on a slid surface 12a of an LD block 12 arranging an LD 11 in a central part. The positioning mechanism 100 is provided with an LD block clamping part 110, consisting of a movable piece 112 and a fixing piece 111 to clamp the LD block 12 in the vertical direction, an adjustment mechanism part 120 for inching the clamping part in parallel to the sliding surface of the guide block 16, an a pressure slider mechanism part 140 which presses the slid surface 12a of the LD block 12 to the sliding surface 16a by performing stroke movement via an elastic body in the vertical direction, with respect to the sliding surface 16a.
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