An apparatus (1) for detecting a 3D structure of an object (2) comprising:- at least three laser emitters (3), each of which generates laserradiation (4, 5) at a wavelength, such that the wavelengths of theemitted laser radiation (4, 5) differ from one another,- optical devices (13, 18, 20), at least one of which is a beam splitter(13), which splits the laser radiation (4, 5) of the laser emitters (3) intoa reference radiation (14) and an illumination radiation (15, 22),wherein the illumination radiation (15, 22) strikes the object (2) to bemeasured, is reflected by the object (2) as object radiation (23a, 23b)and interferes with the reference radiation (14),- a detector (19), which records the interference patterns formed due tothe interference of the reference radiation (14) and the objectradiation (15, 22), and- an analysis unit (26) for analysis of the recorded interference patternsconnected to the detector (19).At least two of the laser emitters (3) emit laser radiation (4) in theinvisible range. At least one of the laser emitters (3) is a color laser (3b),which emits colored laser radiation (5). The analysis unit (26) isdesigned to detect the object (2) in three dimensions, based on theinterference patterns of the invisible laser radiation (4). The analysis unit(26) is additionally designed to deduce the color of the object (2) on thebasis of the intensity of the colored object radiation (23b) reflected bythe object (2).
