Patent ID: 6813029
Filing Date: 2004-11-02
Classification: G01B

Abstract:
An interferometric measuring device for measuring shape, including surfaces of a measured object, comprising:a radiation-producing unit emitting short-coherent radiation; a beam splitter for forming a first beam component and a second beam component, wherein the first beam component is directed via an object light path to the measured object and the second beam component is directed via a reference light path to a reflecting reference plane; a superposition element at which a radiation coming from the measured object and a radiation coming from the reflecting reference plane are brought to superposition; an image converter which receives the superposed radiation and sends corresponding signals to a device for evaluation, wherein, for the measurement, an optical path length of the object light path is changed relative to an optical path length of the reference light path; and an optical probe including an optical device for generating at least one optical intermediate image, wherein the optical probe is provided in the object light path.