Spectrometer device for obtaining spectroscopic information on at least one object

A spectrometer device for obtaining spectroscopic information on at least one object, the spectrometer device comprising

• at least one detector for detecting light from an object;
• at least one optical filter configured for transferring incident light within
• at least one selected wavelength range onto the detector;
• at least one light source configured for emitting light in at least one optical spectral range;
• at least one sample interface configured for allowing the emitted light of the light source to illuminate an object held by the sample interface and configured for allowing light from the object held by the sample interface to propagate via the optical filter to the detector, wherein the sample interface comprises at least one module cover window comprising at least one substrate, wherein the module cover window comprises at least one internal calibration target partially covering the substrate, wherein the module cover window comprises at least one stray light suppression element configured for suppressing of unwanted light hitting the object and/or for suppressing of stray light, wherein the stray light suppression element has a reflectance and a transmittance about zero, wherein the stray light suppression element covers a fraction of the substrate;
• at least one first optical path, wherein the first optical path is configured for allowing the emitted light of the light source to propagate via the optical filter to the detector by passing the sample interface at least once;
• and at least one second optical path, wherein the second optical path is configured for allowing the emitted light of the light source to propagate via the optical filter to the detector by interacting with the internal calibration target at least once.