| 摘要 |
An arrangement for generating a differential interference contrast image (DIC) of an object in an image plane, comprising a radiation source; a Köhler illumination optical unit for illuminating the object with light from the radiation source; an objective for imaging the object plane into an image plane, wherein the objective has an exit pupil and an entrance pupil and wherein the entrance pupil of the objective lies in the illumination pupil of the Köhler illumination optical unit; and a component for generating interference or optical filtering, is characterized in that the component for generating interference or optical filtering is arranged in the exit pupil of the objective, and the component for generating interference or optical filtering is formed by an amplitude filter having an amplitude transmission factor FDIC(x,y) which at least approximately satisfies the formula (I) wherein FDIC(x,y) is a functional expression for describing the amplitude filter transmission and the phase of the amplitude filter as a function of the coordinates x and y. |
