| 摘要 |
A changing device ( 60 ) for an optical examination device, for example a microscope, comprising two beam paths ( 61.1, 61.2 ) for a first optical image, and a changing optics ( 21 ) which is rotatably arranged in the changing device and is, for example, a Galilei magnification changer having at least two, here three pairs of beam paths ( 35.1, 35.2 and 45.1, 45.2 and 55.1, 55.2, respectively) which can optionally be switched into the beam paths ( 61.1, 61.2 ) of the changing device by rotating the changing optics. In accordance with the invention, the changing optics ( 21 ) comprises for each pair of beam paths at least one, here two additional beam paths ( 36.1, 36.2 and 46.2, 46.2 and 56.1, 56.2, respectively), assigned to the respective pair of beam paths, and the changing device ( 60 ) likewise comprises at least one, here likewise two additional beam paths ( 61.3, 61.4 ). The changing optics ( 21 ) is designed in such a way that it is simultaneously possible during rotation of the changing optics ( 21 ) for the beam paths ( 35.1, 35.2 and 45.1, 45.2 and 55.1, 55.2, respectively) of one pair to be inserted into the beam paths ( 61.1, 61.2 ) or removed therefrom, and for the additional beam paths ( 36.1, 36.2 and 46.2, 46.2 and 56.1, 56.2, respectively) assigned to the respective pair to be inserted into the additional beam paths ( 61.3, 61.4 ) of the changing optics or removed therefrom.
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