| 摘要 |
The vertical movement of a retaining link mechanism (5) and the horizontal movement of a counterweight (W4) are interlocked by a drive mechanism (22) for balancing in weight between a medical optical device (W1) and/or its auxiliary devices (W2,W3) and the counterweight (W4) about the center of pivot (S). Accordingly, the action of the drive mechanism (22) makes a balance in the horizontal and vertical movements of the medical optical devices (W) including an operating microscope, thereby automate the balancing control readily. <IMAGE> |
