Patent ID: 7991209

Claim:
A method for optically scanning a sample, having an adjustment unit and a scanning device having an optical unit and a scanning unit, and having a control system that controls the optical unit, the scanning unit, and the adjustment unit, comprising the following steps: moving the sample relative to the scanning device by means of the adjustment unit activated by the control system or the control system activated by the adjustment unit, combining individual images obtained with the scanning device in the control system to produce at least one total image, evaluating the contrast of each individual recorded image in whole or in part by means of an adaptive sensor unit, wherein contrast values (K) obtained during said step of evaluating influence the method of functioning of the entire system, wherein the optical unit is focused by means of the control system or manually, and wherein a related focusing speed (V) is predetermined by the control system as a function of the contrast values (K) of each individual image recorded.