Apparatus and method for capturing an object surface by electromagnetic radiation

An apparatus for capturing an object surface, the apparatus comprising:

• a radiation generation device having at least one beam source, and being configured to:
• radiate a first electromagnetic radiation having a first wavelength and a second electromagnetic radiation having a second wavelength onto at least one measurement point of the object surface to be measured or onto a region of the object surface to be measured, the region including the at least one measurement point, without emitting radiation onto the at least one measurement point of the object surface or onto the region of the object surface, or without emitting the radiation utilized for surface capturing, in a wavelength range between the first wavelength and the second wavelength;
• a capturing device configured to capture for the at least one measurement point at least one first measurement value and at least one second measurement value, the at least one first measurement value being based on the radiation having the first wavelength and being reflected by the object surface and the at least one second measurement value being based on the radiation having the second wavelength and being reflected by the object surface;
• and
• each of the at least one first measurement value and the at least one second measurement value being a distance value representing a distance between the capturing device and the object surface.