Patent ID: 8500290

Claim:
A projection system, comprising: a first tilting mirror matrix; a second tilting mirror matrix; imaging optics that image the first tilting mirror matrix onto the second tilting mirror matrix; wherein each tilting mirror matrix includes a plurality of tilting mirrors, each tilting mirror having a tilting axis which lies in a modulator surface plane; wherein the imaging optics comprise a first lens and an imaging mirror and wherein the imaging mirror forms an aperture stop of the imaging optics and further wherein a plane of the aperture stop forms an angle other than ninety degrees with a normal of the modulator surface of the first tilting mirror matrix without taking into account possible foldings of the beam path; wherein the modulator surface plane of the first tilting mirror matrix is arranged in a modulator plane and the modulator surface plane of the second tilting mirror matrix is arranged in the modulator plane or a plane parallel to the modulator plane and a deflecting optics is arranged between the first tilting mirror matrix and the second tilting mirror matrix and a beam path from the deflecting optics leads to the imaging optics and then returns to the deflecting optics, and wherein said deflecting optics folds the beam path between the imaging optics and each of the first and second tilting mirror matrix at least once.