Patent ID: 7990610

Claim:
A stereomicroscope, comprising: an objective lens; an illumination optical system configured to project an illumination light onto an observation object via the objective lens; a first observation optical system configured to guide the illumination light reflected by the observation object and propagated through the objective lens to a first ocular lens; a second observation optical system including a second ocular lens for observing the reflected light of the illumination light propagated through the objective lens; an optical system drive mechanism configured to rotate the second observation optical system around an axis parallel to an optical axis of the objective lens, thereby switching and placing the second observation optical system between a first position and a second position facing each other; a reflecting member disposed at a position retracted from both a light path of the illumination light projected onto the observation object and a light path of the reflected light entering the first observation optical system, and configured to reflect the reflected light propagated through the objective lens in a direction different from the optical axis; and a reflecting member drive mechanism configured to rotate the reflecting member around a rotation axis orthogonal to the optical axis and guide the reflected light propagated through the objective lens to the second observation optical system placed at the first position or the second position.