Abstract: Disclosed herein is a spectrometer device for analyzing a sample. The spectrometer device includes at least one light emitting element; and at least one reference light emitting element. Further, the spectrometer device includes at least one interface element, at least one segmented aperture, and at least one optical separation element. Further, the spectrometer device includes at least one detector array including a plurality of detector elements. Further disclosed herein are a spectrometer system, a method for determining at least one information related to a spectrum of a sample with the spectrometer device and various uses of a spectrometer system.

Abstract: Disclosed herein is a method for calibrating a spectrometer device. The method includes the following steps: a) illuminating at least one detector device of the spectrometer device with at least one broadband light source through at least one narrow band pass filter having a plurality of predetermined transmission bands; b) generating, by using the detector device, a plurality of detector signals depending on the illumination of step a); c) determining at least one item of wavelength calibration information, where the item of wavelength calibration information includes at least one assignment assigning wavelengths of incident light to corresponding photosensitive elements being responsive to these wavelengths; and d) determining at least one item of stray light calibration information based on the plurality of detector signals. Further disclosed herein are a system for calibrating a spectrometer device, a computer program and a computer-readable storage medium.

Abstract: A device is disclosed. The device includes a. at least one radiation emitting element configured for emitting a modulated thermal radiation as a result of its temperature; where the radiation emitting element includes at least one incandescent lamp; and b. at least one electronic circuit configured for applying a periodic time-dependent voltage to the radiation emitting element, wherein where the electronic circuit is configured for controlling one or more of an amplitude, a duty cycle and a frequency of the periodic time-dependent voltage, where a temperature of the radiation emitting element and a frequency of the modulated thermal radiation depend on the applied periodic time-dependent voltage controlled by the electronic circuit.