Patent attributes
The invention relates to a focusing drive (15) having a linear stroke carriage (6) for carrying and moving an optics carrier in the direction of focus, the focusing drive (15) comprising: a focus carrier (1) having at least one linear guidance system (3) having a rail (4) extending in the direction of focus and having at least one carriage (5) movably supported on the rail (4); and a direct drive (2) for moving a piston (10) supported movably in the direction of focus, which piston is in turn joined to the linear stroke carriage (6) of the focusing drive (15), the linear stroke carriage (6) being joined to the at least one carriage (5) of the linear guidance system (3). This focusing drive (15) makes do with few components without linkage elements, and is significantly quieter.
