| 摘要 |
The disclosure relates to a mounting for an optical apparatus having an optical axis. The mounting has a base and a support for the optical apparatus which provide movement about one or more orthogonal axes and having damping means between the moving and non-moving components for the or each axis. The mounting further having means to determine movement (theta relative) of the damping means at each moving component as a measure of intended movement of the mounting, means to determine actual movement (alpha absolute) of the mounting and means responsive to any difference detected between the intended and actual movements to apply a corrective movement to the optical apparatus. |
