Patent ID: 7898671

Claim:
An interferometric measuring device for measuring a measured object, comprising: a light source; a beam splitter for forming reference beams and object beams; a reference mirror in a reference light path; a special-purpose objective in the object light path and having a mirror system; an image recorder, wherein: the mirror system includes at least one first deflection mirror and at least one second deflection mirror, the at least one first deflection mirror and the at least one second deflection mirror are situated in such a way that the object beams incident on one of the at least one first deflection mirror and the at least one second deflection mirror are directed respectively onto one of a first side and a second side, which is parallel thereto, of the measured object to be measured in one of a first beam path and a second beam path, respectively, which are antiparallel to one another, the mirror system includes at least one first position mirror for imaging a position of the measured object to be measured in relation to at least one of the at least one first deflection mirror and the second deflection mirror, and the position of the measured object in relation to the at least one of the two deflection mirrors is determined prior to adapting an optical path between the measured object and the image recorder; and a correction unit for adapting the optical path between the measured object and the image recorder, wherein the measured object is displaced in relation to the at least one of the two deflection mirrors.