Patent ID: 7456974

Claim:
An optical measuring system for detecting geometric data of a surface of at least one object, comprising: a beam delivery section, a probe system connected to the beam delivery section and including a plurality of probe outputs for delivering at least one measuring beam to at least one assigned surface location and recording light reflected back from the surface; and a downstream analyzer unit for determining the geometric data on the basis of the light reflected back by the at least one surface location, wherein: the probe system is designed in such a way that in addition to the geometric data of the surface, a relative position of the probe system (SA) having the probe outputs positioned in fixed relationship to one another, with respect to the at least one object is determinable at the same time, at least with regard to multiple relevant degrees of freedom; and wherein beam delivery section includes: a broadband, short coherent light generating unit, and a modulation interferometer that includes a plurality of interferometer arms having different optical path lengths and acousto-optical modulators, and the probe system is assigned to an interferometric measuring device in which optical path length differences that are impressed on the modulation interferometer and are greater than a coherence length of a short coherent light are eliminated.