| 摘要 |
The supporting frame used for an optical observation unit (14), e.g., asurgical microscope, comprises a pivoting device (2) mounted to an adjustment mechanism which con be adjusted on three coordinate axes, which said pivoting device can be pivoted on a spherical surface about three axes of rotation (A1, A2, A3) intersecting in the observed point (8) in order lo adjust the observation unit (14) in any desired position. By creating a balance with a counterweight synchronous to the movement of the observation unit, it is easy to move said observation unit (14). As a result or this, the observing angle of the observation unit (14) can be changed slightly without requiring an adjustment of the adjustment mechanism; and the focus relative to the observed point (8) is not changed. |
