Patent ID: 8384994

Claim:
Method for operating an optical system to spatially image an object of study in an image plane of a stereomicroscope comprised in the optical system, comprising: (a) registering a user input to adjust at least one of a focus setting and a zoom factor of a stereomicroscope using an input device, wherein the stereomicroscope comprises (i) at least a first lens system and a second lens system, where each lens system is assigned to a respective optical path, wherein each lens system comprises a first lens arrangement and a second lens arrangement; and (ii) a collecting lens arrangement assigned to the optical path of each lens system; wherein the second lens arrangement is positioned between the first lens arrangement and the collecting lens arrangement; (b) generating controlling signals assigned to the registered user input for adjusting at least one of the focus setting and the zoom factor in a controlling device coupled to the input device wherein the controlling signals are built according to pre-settings data which are stored in a storage device connected to the controlling device; (c) transmitting the controlling signals to one or several respective motor-powered adjustment devices for displacing at least one of the first lens arrangement, the second lens arrangement and the collecting lens arrangement; (d) adjusting at least one of the focus setting and the zoom factor of the stereomicroscope according to the controlling signals by displacing at least one of the first lens arrangement, the second lens arrangement and the collecting lens arrangement using the one or several respective motor powered adjustment device, wherein a respective zoom factor is adjusted in the optical path of each lens system by displacing at least one of the first lens arrangement, the second lens arrangement and the collecting lens arrangement using the respective motor-powered adjustment device, wherein the respective adjustable zoom factors of the optical path of each lens system are different from each other; and (e) where the method is characterized in that an interpolation is carried out in the controlling device between selected pre-settings data of the stored pre-settings data during the generation of the controlling signals for adjusting at least one of the focus setting and the zoom factor.