| 摘要 |
Drive for a mechanical stage, in particular for microscope stages with a large range of movement, which with considerable operating convenience ensures abrasion-free and sensitive adjustability, in which case low-friction coarse positioning is to be capable of being started manually via operating elements and the drive means remain constantly in engagement. According to the invention, the object is achieved in that, coaxial to the two existing operating knobs, a likewise coaxial friction lock is engaged and disengaged via rotation of a further operating knob.
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