| 摘要 |
PROBLEM TO BE SOLVED: To provide a displacement measuring device capable of easily adjusting the gap between a scale member and a light-receiving element. SOLUTION: The displacement measuring device includes a body case 10, a spindle 20 built into the case 10 and axially movable, the scale member 30, having a structure with a scale-drawn on a glass scale 32 and mounted on the spindle 20, and a light-projecting element 40 and the light-receiving element 41 which are provided opposite, across the scale member 30 in the body case 10. The displacement-measuring device also includes a gap adjustment mechanism 50 for moving the light-receiving element 41, closer to or farther away from the scale member 30 for fine adjustment of the gap, between the scale member 30 and the light-receiving element 41. COPYRIGHT: (C)2009,JPO&INPIT
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