| 摘要 |
A stereoscopic microscope has an objective optical system used in common for left and right observation optical paths, a pair of left and right first stereoscopic observation optical systems disposed rearwardly of the objective optical system, a light beam distributing device disposed between the first stereoscopic observation optical systems and the objective optical system rotatable about the optic axis of the objective optical system, and at least deflecting a second stereoscopic observation light beam passed through the objective optical system, and a second stereoscopic observation optical system rotatable about the optic axis of the objective optical system with the rotation of the light beam distributing device, the second stereoscopic observation light beam passed through the light beam distributing device entering the second stereoscopic observation optical system.
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