Patent ID: 7777971
Filing Date: 2010-08-17
Classification: G02B

Abstract:
1. An aperture stop device in an observation beam path of a microscope, the microscope having at least one adjustable observation parameter, comprising at least one aperture stop with an adjustable aperture in an observation beam path of the microscope, which receives an aperture signal representative of an aperture to be adjusted, a control unit for outputting the aperture signal to the aperture stop in dependence at least on a respectively adjusted value of the at least one adjustable observation parameter, wherein the at least one adjustable observation parameter is at least one magnification factor, a memory storing different relationships between at least two different values of the aperture and the adjusted value of the available magnification factors, wherein each different relationship describes the aperture to be adjusted as a function of the adjusted value of the available magnification factors to implement different transmission characteristics in the observation beam path, and a selector device for selecting one of the stored different relationships based on a desired transmission characteristic in the observation beam path for application of the selected relationship to the aperture of the aperture stops.