Guide system for optical systems, particularly zoom systems

摘要

The invention relates to a guide system for optical systems, particularly for zoom systems, with which optical assemblies such as lenses and/or sets of lenses can be moved along an optical axis ( 16 ). The proposed guide system comprises a housing ( 2 ) defining an internal diameter ( 1 ) and extending along the optical axis ( 16 ). A slide ( 3 ) is configured to accommodate an optical assembly ( 19 ) and has a sleeve segment ( 15 ) which has on its outside a plurality of contact surfaces ( 4 ) for abutment on the internal diameter ( 1 ) of the housing ( 2 ). For defined movement of the slide ( 3 ) along the optical axis ( 16 ) a drive unit ( 12 ) is provided. A device ( 17 ) serves to hold the sleeve segment ( 15 ) at the internal diameter ( 1 ), another device ( 18 ) serves to secure the slide ( 3 ) against rotation in the cross-sectional area of the housing. The guide system according to the invention provides guidance which is absolutely free from play and low in friction. Openings ( 10 ) in the housing allow access to the lenses for adjustment and cleaning.