| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for measuring face deflection capable of measuring the deflection of a face in a polygonal mirror structure while stably rotating the polygonal mirror structure, and to provide a mirror working system for working the side surface of the polygonal mirror structure into a mirror surface. SOLUTION: The device for measuring face deflection of the polygonal mirror structure includes a bearing assembly 20 that vertically and rotatably supports and rotates the polygonal mirror structure 21 having a rotational shaft 24, and a measuring probe 68 that is disposed at the face of lower edge 32 of the polygonal mirror structure 21 and measures the deflection of the face on the basis of the rotation of the polygonal mirror structure 21. The maximum deflection value and the minimum deflection value are detected using the measuring probe 68. |
