Patent ID: 6046844
Filing Date: 2000-04-04
Classification: A61B,G02B

Abstract:
An operating microscope comprising:a magnification adjustment means;a focus adjustment means;a canting adjustment means and a tilt adjustment means extending at a right angle to the canting adjusting means;a plurality of motors, each motor individually driving at an adjustment speed, the focus adjustment means, the canting adjustment means and the tilt adjustment means;means for producing a setting signal in dependence on an actual magnification adjustment of the magnification adjustment means; andmeans for receiving the setting signal and for producing therefrom control values for the plurality of motors for individually changing the adjustment speed of the focussing adjustment means, the canting adjustment means, and the tilt adjustment means, wherein each control value is derived from a quantity inversely proportional to the actual magnification adjustment of the magnification adjustment means.