| 摘要 |
The present invention relates to a system for guiding optical elements, in particular lenses, along an optical axis of a microscope, in particular a stereomicroscope, or of a macroscope, said guide system including at least one guide rod (312, 314) which extends parallel to the optical axis and is at least partially made from a magnetizable material, and further including a carrier (320) for the optical elements, said carrier (320) being displaceable along the at least one guide rod (312, 314) and having means for providing magnetic attraction between itself and at least one guide rod (312, 314); the means for providing magnetic attraction including at least one magnetizable wheel (370, 380, 382) adapted to roll along the at least one guide rod (312, 314) while rotating about an axis as the carrier (320) is displaced; the at least one guide rod (312, 314) being made of magnetizable material and/or the magnetizable wheel (370, 380, 382) being at least in part permanently magnetic.
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