Patent ID: 7106300

Claim:
A magnified vision system comprising an imaging system and a workpiece stage, the imaging system and the workpiece stage capable of relative motion along at least one axis, the magnified vision system further comprising: a plurality of lenses interchangeable in the imaging system, the lenses having lens characteristics; a motion control system for providing the relative motion between the imaging system and the workpiece stage along the at least one axis; an input device including at least one element having a manually controllable deflection usable to adjust the relative motion along the at least one axis; and a deflection converter portion operable such that: for a given present deflection within a relatively lower range of deflections the magnified vision system provides a image change rate in an image from a present lens that is substantially similar to the respective image change rate provided when a different respective one of the lenses is the present lens; and for a given present deflection within a relatively higher range of deflections, the magnified vision system provides a speed of relative motion corresponding to the present lens such that for increasingly larger deflections in the higher range of deflections the speed of relative motion corresponding to the present lens becomes increasingly similar to the respective speed of relative motion provided when the different respective one of the lenses is the present lens.